Philips KV-S5055C Service Manual

Unauthorized copying and distribution is a violation of law. Order Number KM71005571CE Category Number G14 High Speed Color Scanner Model No. KV-S5055C

PAGE PAGE 1 GENERAL PRECAUTIONS -------------------------------------4 1.1. Safety Precautions-----------------------------------------4 1.2. Electrical Tests----------------------------------------------4 1.3. Standard for Repair Service -----------------------------4 1.4. For Service Technicians ----------------------------------5 1.5. About Lead Free Solder (PbF: Pb free) --------------5 1.6. About RoHS -------------------------------------------------5 2 SPECIFICATIONS -------------------------------------------------6 3 COMPONENT IDENTIFICATION ------------------------------8 3.1. Main Part Names and Locations ----------------------8 3.2. Control Panel---------------------------------------------- 10 4 INSTALLATION--------------------------------------------------- 11 4.1. Minimum Space Requirements ----------------------- 11 4.2. Included Accessories------------------------------------ 12 4.3. Installing Double-feed Prevention Roller ----------- 13 4.4. When Scanning Documents of Different Sizes Together -------------------------------------------- 15 4.5. DIMM Module Extension ------------------------------- 17 4.6. Installing DIMM Modules ------------------------------- 19 4.7. Connecting the Scanner to a Personal Computer--------------------------------------------------- 20 4.8. System Requirements ---------------------------------- 21 4.9. Installing the Driver and Software-------------------- 21 5 SECTIONAL VIEW----------------------------------------------- 22 5.1. Bottom Block ---------------------------------------------- 22 5.2. Back Block ------------------------------------------------- 23 5.3. Upper Block------------------------------------------------ 24 5.4. Lower Block------------------------------------------------ 25 6 MECHANICAL FUNCTION------------------------------------ 27 6.1. Paper Feed Mechanism (Auto) ----------------------- 27 6.2. Paper Feed Mechanism (Manual) ------------------- 29 6.3. Paper Feed Operation ---------------------------------- 30 6.4. Glass Cleaning Mechanism (Auto) ------------------ 32 6.5. Detecting Bent Paper ----------------------------------- 32 7 MAINTENANCE -------------------------------------------------- 33 7.1. Maintenance Chart--------------------------------------- 33 7.2. Cleaning ---------------------------------------------------- 34 7.3. Replacing Limited Life Parts--------------------------- 41 8 DISASSEMBLY INSTRUCTIONS---------------------------- 43 8.1. Disassembly Flowchart --------------------------------- 43 8.2. Bottom Block ---------------------------------------------- 46 8.3. Back Block ------------------------------------------------- 47 8.4. Upper Block------------------------------------------------ 50 8.5. Lower Block------------------------------------------------ 62 9 SERVICE UTILITY & SELF TEST --------------------------- 86 9.1. Main Menu Indication for Service Utility ------------ 86 9.2. List of Functions for Service Utility------------------- 87 9.3. Operation--------------------------------------------------- 89 9.4. Scanner Self-test--------------------------------------- 103 10 TROUBLESHOOTING---------------------------------------- 106 10.1. Troubleshooting-1 (with no error message on PC)--------------------------------------------------------- 106 10.2. Troubleshooting-2 (with an error message on PC)--------------------------------------------------------- 107 10.3. Requirement After Parts Replacement ----------- 121 11 CIRCUIT DESCRIPTION------------------------------------- 122 11.1. Block Diagram-1 (Image Processing) -------------122 11.2. Block Diagram-2 (Board) -----------------------------123 11.3. Explanation of Connector-----------------------------124 12 SCHEMATIC DIAGRAM --------------------------------------132 12.1. CONTROL Board---------------------------------------133 12.2. PANEL and SENSOR Boards -----------------------159 12.3. RELAY and SENSOR Boards -----------------------168 12.4. DRIVE Board --------------------------------------------175 12.5. POWER Board ------------------------------------------179 13 CIRCUIT BOARD-----------------------------------------------180 13.1. CONTROL Board---------------------------------------181 13.2. PANEL Board--------------------------------------------183 13.3. DFP HOME SENSOR Board ------------------------183 13.4. ENDING SENSOR Board ----------------------------184 13.5. PAPER FEED SELECT SENSOR Board---------184 13.6. BENT RELAY Board -----------------------------------184 13.7. BENT PAPER SENSOR R(L) Board---------------185 13.8. BENT PAPER SENSOR R(R) Board --------------185 13.9. BENT PAPER SENSOR S(L) Board---------------185 13.10. BENT PAPER SENSOR S(R) Board --------------185 13.11. USS RELAY Board-------------------------------------186 13.12. USR RELAY Board-------------------------------------187 13.13. USR SENSOR Board----------------------------------188 13.14. SLIP DETECT SENSOR Board---------------------188 13.15. STARTING SENSOR Board -------------------------188 13.16. USS / WAITING SENSOR Board-------------------189 13.17. DRIVE Board --------------------------------------------190 13.18. POWER Board ------------------------------------------192 13.19. CCD (F) Board and CCD (B) Board ---------------194 14 PARTS LOCATION AND MECHANICAL PARTS LIST ----------------------------------------------------------------196 14.1. Exterior ----------------------------------------------------197 14.2. Main Chassis 1------------------------------------------199 14.3. Main Chassis 2------------------------------------------201 14.4. Sub Chassis 1 -------------------------------------------204 14.5. Sub Chassis 2 -------------------------------------------207 14.6. Board Box ------------------------------------------------209 14.7. Packing---------------------------------------------------- 211 14.8. TOOL ------------------------------------------------------213 15 REPLACEMENT PARTS LIST------------------------------214 15.1. CONTROL Board---------------------------------------215 15.2. PANEL Board--------------------------------------------239 15.3. DFP HOME SENSOR Board ------------------------239 15.4. ENDING SENSOR Board ---------------------------239 15.5. PAPER FEED SELECT SENSOR Board---------239 15.6. BENT RELAY Board -----------------------------------239 15.7. BENT PAPER SENSOR R(L) Board---------------239 15.8. BENT PAPER SENSOR R(R) Board --------------240 15.9. BENT PAPER SENSOR S(L) Board---------------240 15.10. BENT PAPER SENSOR S(R) Board --------------240 15.11. USS RELAY Board-------------------------------------240 15.12. USR RELAY Board-------------------------------------242 15.13. USR SENSOR Board----------------------------------243 15.14. SLIP DETECT SENSOR Board---------------------243 15.15. STARTING SENSOR Board -------------------------244 15.16. USS / WAITING SENSOR Board-------------------244

15.18. POWER Board ------------------------------------------247

2. When replacing parts, use only manufacture’s recommended components for safety. 3. Check the condition of power cord. Replace if wear or damage is evident. 4. After servicing, be sure to restore the wire dressing, insulation barriers, insulation papers, shields, etc. 5. Before returning the serviced equipment to the customer, perform the following electrical tests to prevent shock hazard. 6. The power supply unit in this scanner contains dangerous levels energy. 1.2. Electrical Tests 1. Unplug the power cord and check for continuity between the earth ground connection on the plug and the metal cabinet. There should be zero ohm resistance found. 2. With the unit unplugged, short the AC Live-Neutral of the plug with a jumper wire. 3. Turn ON the power switch. 4. Measure the resistance value with an ohmmeter between the jumpered AC plug and each exposed metal cabinet part, such as screwheads, etc. Note Some exposed parts may be isolated from the chassis by design. They read infinity. 5. If the measurement is less than 1 MΩ, there may be a danger of electric shock. Note This hazardous condition must be corrected before the unit is returned to the end user. 1.3. Standard for Repair Service Repair service shall be provided in accordance with repair technology information such as service manual so as to prevent fires, injury or electric shock, which can be caused by improper repair work. 1. When performing repairs, neither the products nor its parts or components shall be modified. 2. If cable assembly is supplied as the smallest unit when servicing, make sure to replace the cable assembly.

ICs and LSIs are vulnerable to static electricity. When repairing, the following precautions will help to prevent recurring malfunctions. 1. Cover plastic parts with aluminum foil. 2. Ground soldering irons. 3. Use a conductive mat on the worktable. 4. Do not hold IC or LSI pins with bare fingers. 1.5. About Lead Free Solder (PbF: Pb free) Note • In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that contains lead. • We will use PbF when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn), Silver (Ag), and Copper (Cu). • This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair work we suggest using the same type of solder. Distinction of PbF PCB • PCBs manufactured using lead free solder will have a PbF stamp on the PCB. Caution • PbF solder has a melting point that is 50 ° - 70 °F, (30 ° - 40 °C) higher than Pb solder. Use a soldering iron with temperature control and adjust it to 700 ° ± 20 °F (370 ° ± 10 °C). • Exercise care when using higher temperature soldering irons: Do not heat the PCB for too long time in order to prevent solder splash or damage to the PCB. • PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100 °F (600 °C). • When applying PbF solder to double layered boards, check the component side for excess solder which may flow onto the opposite side (See figure below). 1.5.1. Suggested Pb free solder We recommend you to use the following solder when re-soldering components for repair. Before using other Pb free solder than the following solder, make sure to confirm that the solder maker (you use) has the license agreement for Pb free solder. Supplier: Senju Metal Industry Co., Ltd. (http://www.senju-m.co.jp) Part Description in Senju: EcoSolder RMA02 P3 M705 Series 1.6. About RoHS This product is fully compliant with the national laws transposed from the EU Directive on the restriction of the use of certain hazardous substances (RoHS) in electrical and electronic equipment, effective 1st July 2006 in the EU countries. In order for the product to comply with the RoHS Directive, the six particular substances (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers) have been either totally eliminated or limited to the concentration level below maximum allowed. Consequently spare parts have been changed to RoHS-compliant parts where applicable. Due to the application of RoHS legislation to spare parts, non-compliant spare parts cannot be used to repair compliant products put on the EU market on or after 1st July 2006. Therefore make sure to order and use RoHS-compliant spare parts listed in this manual.

Scanner Scanning Face Duplex Scanning Method CCD and LED for Front side CCD and LED for Back side Scanning Width 305 mm (12.0 in.) Readout Speed *2 Black & White: 50 ppm / 100 ipm (A4, 300 dpi, Portrait) Black & White: 70 ppm / 140 ipm (A4, 200 dpi, Portrait) Color (JPEG): 50 ppm / 100 ipm (A4, 300 dpi, Portrait) Color (JPEG): 70 ppm / 140 ipm (A4, 200 dpi, Portrait) Resolution Main scanning direction: 100 - 600 dpi (1 dpi step) Sub-scanning direction: 100 - 600 dpi (1 dpi step) Optical resolution is 600 dpi. Image Output Binary, Grayscale, Color, MultiStream (Binary and Color, Binary and Grayscale) Tonal Gradation Dither (64 step gradation), Error diffusion (64 step gradation), Grayscale (8 bit), Color (24 bit) Image Control Image emphasis, Dynamic threshold, Automatic separation, Invert, White level from paper Other Functions Patch code detection (Kodak patch 2,3,T), Double feed detection Paper Size 48 x 70 mm (1.9 x 2.8 in.) to 297 x 432 mm (11.7 x 17 in.) Thickness 0.04 to 0.2 mm (1.6 to 7.9 mils) Note: 1 mil = 1 / 1000 in. Weight 20 to 157 g/m2 (5.3 to 41.8 lb.) Note: 1 lb. = 3.75 g/m2 Detection Empty, Jam, Double-feed detection, and Bent-paper detection Interface USB 2.0 (Connector type: B) Hopper Capacity 200 sheets [75 g/m2 (20 lb.)] Memory Size 32 MB (Standard) Note: Additional Memory Up to 1 GB Unit External Dimensions (Width x Depth x Height) 468 x 444 x 339 mm (18.5 x 17.5 x 13.4 in.) Weight 18 kg (40 lb.) Power Requirement AC 100 V to AC120 V, 50 / 60 Hz AC 100 V to AC240 V, 50 / 60 Hz Power consumption Maximum (Scanning) 1.0 A (AC 100 V to 120 V) 0.5 A (AC 220 V to 240 V) Minimum (Standby) 0.4 A (AC 100 V to 120 V) 0.2 A (AC 220 V to 240 V) Sleep Mode 3.5 W or less (AC 100 V to 120 V) 3.5 W or less (AC 220 V to 240 V) Environment Operating Temperature and Humidity Temperature: 15 °C to 30 °C (59 °F to 86 °F) Humidity: 20 % to 80 %RH Storage Temperature and Humidity Temperature: 0 °C to 40 °C (32 °F to 104 °F) Humidity: 10 % to 80 %RH Accessories Power cord, USB cable, Double-feed Roller Prevention Roller,Cleaning Paper, Blower, Shading Sheet, CD-ROM (Installation Manual, Operation Manual, Device driver, ISIS, TWAIN Image Capture Plus, Quick Scan Pro Demo, User Utility, Control Sheet, Warranty Information(U.S.A. only)), Printed materials (Installation Manual, Safety Guide) PbF (Pb Free) Applied to PCB assemblies CONTROL, DRIVE, POWER, CCD(F), CCD(B),LED, USS RELAY, USR RELAY, USR SENSOR, SLIP DETECT SENSOR, STARTING SENSOR, USS/WAITING SENSOR, PANEL, DFP HOME SENSOR, ENDING SENSOR, PAPER FEED SELECT SENSOR, BENT RELAY, BENT PAPER SENSOR R(L), BENT PAPER SENSOR R(R), BENT PAPER SENSOR S(L), and BENT PAPER SENSOR S(R) Boards Note: Distinction of PbF PCB PCBs manufactured using lead free solder will have a PbF stamp on the PCB. Option *3 Roller Cleaning Paper (KV-SS03) *3 Imprinter Unit (KV-SS014) *3 Ink Cartridge (KV-SS021) *4 Roller Exchange Kit (KV-SS039) Flatbed Scanner (KV-SS080)

*2: The scanning speed depends on the test environment. In addition, it differs depending on the host computer operating environment or applications. *3: KV-SSxxx (All Area except for China) KV-SSxxx-CN (Only for China) (xxx: 03, 014, or 021) *4: KV-SS039 (Except for Europe, Russia, and, China) KV-SS039-U (For Europe and Russia) KV-SS039-CN (For China) Model Area Serial No. Power Cord KV-S5055C USA D36 xxxx 1001 For 100 to 120 V KV-S5055C-J USA (made in Japan) D56 xxxx 1001 For 100 to 120 V KV-S5055C-U Europe, Russia D50 xxxx 1001 For 220 to 240 V KV-S5055C-K Korea D53 xxxx 1001 For 220 to 240 V KV-S5055C-T Taiwan D54 xxxx 1001 For 100 to 120 V KV-S5055C-CN China D57 xxxx 1001 For 220 to 240 V KV-S5055C-B Brasil D52 xxxx 1001 For 220 to 240 V

Fig.3.2.2 Scanner status Note:* This status indicates one of the following.: "Clean rollers", "Clean Reference Plates", or "Replace rollers" To determine the specific condition, execute "Service Utility", and then check the status message. Name Operation Remarks 1 DFS (Double- feed Skip) key When a double-feed occurs, push this key to continue scanning the double-feed detected sheet and the following sheet on the Hopper. 2 Start/Stop key (1) Push this key to start scanning if you set [Wait Key] to "Manual Feed Mode" in your application software. (2) During scanning, push this key to stop scanning. (3) If you push this key when a double feed occurs, the sheet that was detected as a double feed will be ejected from the scanner without being scanned. Scanning will stop. 3 Ready Indicator This indicator shows the scanner status. 4 Error Indicator This indicator lights when an error occurs. Ready Indicator Error Indicator Status (Green) (Red) ON OFF Ready ON Blink (Slow) Caution* OFF ON Error Blink (Slow) OFF Sleep Blink (Slow) Blink (Slow) Caution* / Sleep Blink (Fast) OFF Warming up Blink (2 times consecutively) OFF Double Feed Skip mode

Be sure to maintain the recommended space requirements for proper ventilation. Fig.4.1.1 Dimensions for proper ventilation Top View Left-side View

1. Remove all packing tape. 2. Push the ADF Door Release (1) to open the ADF door (2). 3. Pull towards you and remove the Double-feed Prevention Roller Cover by using the indent (1). 4. Install the Double-feed Prevention Roller. • Align the shaft that is shaped as indicated by (1) with the notch in the roller mount (2), and then insert the shaft in the notch. Push the shaft on the opposite side (3) until it clicks into place. Note After you install the Double-feed Prevention Roller, make sure that the shaft is inserted into the tab, and that the shaft will not rotate or move. If the roller is not installed correctly, it may cause double feeding or a paper jam.

Cover into the holes on the main unit, and then push in the part of the roller cover indicated by (2) in the direction indicated by the arrows until it clicks into place. Note Make sure that the Double-feed Prevention Roller Cover does not stick up. If the cover is not closed properly, paper jams or damage to the paper may occur. 6. Close the ADF Door. • Push both sides of the ADF Door down slowly until it clicks into place.

Note See the following conditions for scanning documents of different sizes together. • Document thickness The ratio of the thickness between the thickest paper and thinnest paper must be less than 1.5. • Document size The ratio of the largest paper size to the smallest paper size must be less than 1.5. (The minimum size is A6) For example, if A4 is the smallest paper set on the Hopper, the maximum size for other documents to be scanned together is A3. 1. Set the Manual Feed Selector to "AUTO". 2. Slide the Document Guides Selector in the direction of the arrow to unlock the Document Guides so that the guides can be slid independently from each other.

4. Align the documents along one side of the guides. 5. Slide the Document Guides to align the document position so that the center of the smallest sheet can be fed into the center of the paper slot. Note: Adjusting the left and right Document Guides to their original position 1. Slide the Document Guides Selector to unlock the Document Guides. 2. Spread the Document Guides as far apart as they will go. 3. Slide the Document Guides Selector to lock the Document Guides.

A maximum of 1024 MB (total size for front and back sides) extended memory may be required depending on the combination of the paper size, mode, and resolution. To determine how much extended memory is required for a certain configuration, refer to Fig. 4.5.1 and Fig. 4.5.2. Note 1: If configurations requiring a lot of memory (high resolution, color mode, etc.) are used with KV-S5055C Series, the scanning will be suspended intermittently while the data is being transferred to the computer. As a result, the images may be disrupted slightly due to the effect of suspending the scanning. In cases like this, the image quality will be improved by installing additional memory in the scanner. To determine the amount of memory that is required to avoid suspending the scanning, refer to Fig.4.5.1. and Fig.4.5.2. Note 2: Originally, CONTROL Board has 32 MB memory built in. Note 3: For the additional memory, the scanner requires the same type of memories for each side (Front and Back) to be installed at the same time. (For example: “128” means that you must install 128 MB of memory for front-side scanning and 128 MB of memory for back-side scanning.) Note 4: Recommended memory (1) 144 pin SDRAM (Unbuffered SO-DIMM) (2) Non ECC (3) + 3.3 V ± 0.3 V power supply (4) Frequency / CAS Latency: 100 MHz / CL=2 or 133 MHz / CL=2 (5) Support for Full Page Burst (6) Memory size: 128 MB, 256 MB, or 512 MB (7) Height: Less than 31.75 mm (1.25 in.) Note 5: “X” “X” in the Fig. 4.5.1 and Fig. 4.5.2 means the scanning will be suspended intermittently (START/STOP function will operate.) even if the maximum amount of memory (total 1024 MB) is installed.

(Unit: MB) *1: 305 mm x 2,540 mm (12.0 x 100 in.) Mode Size dpi 100 200 300 400 500 600 Binary *1 SC's Max 0 0 128 128 128 128 Double Letter 0 0 0 0 0 128 Legal 0 0 0 0 0 0 Letter 0 0 0 0 0 0 A3 0 0 0 0 0 128 A4 0 0 0 0 0 0 A5 0 0 0 0 0 0 A6 0 0 0 0 0 0 B4 0 0 0 0 0 0 B5 0 0 0 0 0 0 B6 0 0 0 0 0 0 8 bit Gray *1 SC's Max 128 128 128 256 512 512 Double Letter 0 128 128 128 128 128 Legal 0 0 128 128 128 128 Letter 0 0 128 128 128 128 A3 0 128 128 128 128 128 A4 0 0 128 128 128 128 A5 0 0 0 128 128 128 A6 0 0 0 0 0 128 B4 0 0 128 128 128 128 B5 0 0 0 128 128 128 B6 0 0 0 0 128 128 24 bit Color *1 SC's Max 256 512 X X X X Double Letter 128 128 256 256 512 X Legal 128 128 128 256 256 256 Letter 128 128 128 256 256 256 A3 128 128 256 256 512 X A4 128 128 128 256 256 256 A5 0 128 128 128 256 256 A6 0 128 128 128 128 128 B4 128 128 128 256 256 512 B5 0 128 128 128 256 256 B6 0 128 128 128 128 256

(Unit: MB) *1: 305 mm x 2,540 mm (12.0 x 100 in.) 4.6. Installing DIMM Modules Mode Size dpi 100 200 300 400 500 600 Binary + 8 bit Gray *1 SC's Max 128 128 X X X X Double Letter 0 128 128 128 128 128 Legal 0 128 128 128 128 128 Letter 0 0 128 128 128 128 A3 0 128 128 128 128 128 A4 0 0 128 128 128 128 A5 0 0 0 128 128 128 A6 0 0 0 0 128 128 B4 0 0 128 128 128 128 B5 0 0 128 128 128 128 B6 0 0 0 128 128 128 Binary + 24 bit Color *1 SC's Max 256 512 X X X X Double Letter 128 128 256 256 512 X Legal 128 128 128 256 256 256 Letter 128 128 128 256 256 256 A3 128 128 256 256 512 X A4 128 128 128 256 256 256 A5 0 128 128 128 256 256 A6 0 128 128 128 128 128 B4 128 128 128 256 256 512 B5 0 128 128 128 256 256 B6 0 128 128 128 128 256 1. Remove the Cover Plate. (See 8.2.1.) 2. Insert the DIMM Module into the memory slot (CN0017) on the CONTROL Board in the direction of the arrow (1), and then push the module down in the direction of the arrow (2) until the notches of the module on both sides lock into place. 3. Insert another DIMM Module similarly into the other memory slot (CN0018) on the CONTROL Board.

Connect the accessories’ Power Cord and USB cable to the back of the unit. Caution: 1. Only use the Power Cord and USB Cable enclosed in this scanner. 2. Be sure to connect the scanner directly to the USB interface port on the PC. We cannot guarantee that the scanner will work properly if it is connected to a USB hub.

Note 1. The above system requirements may not meet the requirements of all operating systems and bundled application software. 2. The scanning speed differs depending on the host computer’s operating environment or application. 3. If you connect the scanner to a USB hub, it is not guaranteed to work. Abbreviations • Windows® refers to the Microsoft® Windows® operating system (hereafter Windows). • Windows® XP refers to the Microsoft® Windows® XP operating system (hereafter Windows XP). • Windows Vista® refers to the Microsoft® Windows Vista® operating system (hereafter Windows Vista). • Windows® 7 refers to the Microsoft® Windows® 7 operating system (hereafter Windows 7). Trademarks 1. Intel and Intel Core are trademarks of Intel Corporation in the U.S. and other countries. 2. Microsoft, Windows, and Windows Vista are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. 3. All other trademarks identified herein are the property of their respective owners. 4.9. Installing the Driver and Software Following the instructions in the scanner’s Installation Manual, install the scanner driver and software that is included on the enclosed CD-ROM. Computer IBM PC/AT or compatible machine with a CD-ROM drive CPU Intel® Core™ 2 Duo, 1.8 GHz or higher Operating System Windows® XP (64 bit Edition is not supported.), Windows Vista®, or Windows®7 Interface USB 2.0 Memory 1 GB Hard Disk Drive 5 GB free space is required.

(Fig. 6.1.1) 1. When the documents are set on the Hopper and the scanning command is issued from PC, the Conveyor Motor will be driven to rotate the three Drive Rollers (Drive Roller 1 to 3) and Exit Roller. And at this time, the gate will open. 2. Then, the Paper Feed Motor will be driven to rotate the Paper Feed Roller and the Separation Roller in the feed direction. At this time, the Paper Feed Roller will move down until the roller is in contact with the documents, which enables the roller to feed the documents. The Double-feed Prevention Roller is supported by shaft fixed via a torque limiter, and it is pushed against the Separation Roller. 3. When documents enter the separation section, the Double-feed Prevention Roller exerts a manipulation force onto them, which depends on a set torque. In the case of continuous paper feed, the documents are separated by this manipulation force, so only one sheet of the documents is fed to the scanning section. When the document passes through the Waiting Sensor, the Paper Feed Motor will be driven to rotate the Double-feed Prevention Roller in the reverse direction to ensure separation of the first document from the following documents. At this time, the Paper Feed Roller rises to separate from the documents.

At this time, if the document does not advance within a defined period, the pressure applied to the Separation Roller from the Double-feed Prevention Roller is strengthened to prevent the document from slipping. (For the pressure mechanism, see Fig. 6.1.2.) When the leading edge of the document reaches the Slip Detect Sensor, the Paper Feed Motor will stop. (Fig. 6.1.2) Pressure Mechanism 5. When the leading edge of the document passes through the Starting Sensor, image scanning starts after a defined period. (i.e., the time required for the document to advance from the Starting Sensor to the scanning start point) 6. The document passes through the Exit Sensor and exits from the scanner. 7. When the trailing edge of the document passes through the Waiting Sensor, the Paper Feed Motor is driven again to feed the 2nd document. 8. 2 to 7 above are repeated. Note: When the scanner’s buffer becomes full, the scanner stops to prevent buffer overflow, while continuing to allow data to be transferred to the PC.

When scanning multipart paper with the Manual Feed Selector set to “AUTO”, the Double-feed Prevention Roller is pressed against the Separation Roller, and this results in a separating force being applied to the document, which will separate the layers, resulting in damage to the document. This problem can be avoided by scanning multipart paper with the Manual Feed Selector set to "Manual". With “MANUAL” set, the Double-feed Prevention Roller's gear is released from the Paper Feed Pitch Roller, and so multipart paper can be fed and scanned as if it were a single sheet of paper. (In this case, the Double-feed Prevention Roller operates as a free roller.) Note: Do not scan multipart paper with the Manual Feed Selector set to “AUTO”. When scanning multipart paper, be sure the Manual Feed Selector is set to “MANUAL”.

1. When the Paper Feed Motor rotates the Paper Feed Motor in the paper feed direction, Paper Feed Roller will go down until the roller is in contact with, and then rotate in the paper feed direction. (Arrows 1 →2 → 3 → 4) At this time, Separation Roller will also rotate in the paper feed direction. (Arrows 1 →2 → 3)

paper feed, the Paper Feed Roller will rise and won't rotate. (Arrows 1→ 2→ 3) At this time, Separation Roller will also rotate in the paper feed direction. (Arrows 1→ 2→ 3)

After turning on the scanner or finishing scanning, this scanner will rotate the Conveyor Motor in the reverse direction of paper-feed to rotate the Reference Plates (F) and (B). This performance will enable the brush attached on the plates clean the glass surfaces. 6.5. Detecting Bent Paper When scanning the documents bound with staples and others to flip up them, this scanner will detect the flipped -up documents by using BENT PAPER S Sensor and BENT PAPER R Sensor.

Caution: *1 • The Scanning Glass (F), Scanning Glass (B), and their surroundings may be hot after scanning a lot of documents continuously. Be sure to allow the inside of the scanner to cool down before performing any maintenance or coming in contact with the inside of the unit. Note • The above roller maintenance values are stored in the maintenance counter (Refer to Sec. 9), and the PC will notify users of the cleaning and replacing timing if the utility software for the scanner has been installed. • The maintenance schedule was determined according to paper standards (A4: 75 g/m2 / Letter: 20 lb.), which can vary greatly between users. Therefore, the values can also vary. Description Part Reference Section 20 40 60 80 - 320 340 350 Paper Feed Roller Sec. 14.4 C C C Clean each part every 20,000 sheets' scanning. C R Separation Roller Sec. 14.4 C C C C R Double-feed Prevention Roller Sec. 14.2 C C C C R Drive Roller 1 Sec. 14.3 C C C C C Drive Roller 2 Sec. 14.3 C C C C C Drive Roller 3 Sec. 14.3 C C C C C Exit Roller Sec. 14.3 C C C C C Free Roller 1 Sec. 14.4 C C C C C Free Roller 2 Sec. 14.4 C C C C C Free Roller 3 Sec. 14.4 C C C C C Reference Plate (F) Sec. 14.3 C C C C C Reference Plate (B) Sec. 14.5 C C C C C *1 Scanning Glass (F) Sec. 14.5 C C C C C *1 Scanning Glass (B) Sec. 14.3 C C C C C Ionizer (Ion outlet) Sec. 14.3 C C C C C Reflector Sheets for sensors Sec. 14.1, 14.2 C C C C C Paper Sensor Sec. 14.1 C C C C C Waiting Sensor (on the USS / WAITING SENSOR Board) Sec. 14.4 C C C C C Starting Sensor (Board) Sec. 14.4 C C C C C Slip Detect Sensor (Board) Sec. 14.4 C C C C C Exit Sensor (on the ENDING SENSOR Board) Sec. 14.3 C C C C C Double Feed Detector (G) Sec. 14.4 C C C C C Double Feed Detector (R) Sec. 14.3 C C C C C

2. Push the ADF Door Release to open the door.

the surface of the following parts in order to maintain high scanning performance. Note: After cleaning the Paper Feed Roller, Separation Roller, and Double-feed Prevention Roller, execute “Clear Counter for cleaning roller” with Service Utility. (See 9.3.4.) (Fig. 7.2.2-1) Cleaning Parts and Action **Action Code means cleaning methods as follows. C: Clean each surface with the included Roller Cleaning Paper or Model KV-SS03. (Option: Roller Cleaning Paper) B: Blow off each surface with the included Blower. Caution: *1 • The Scanning Glass (F), Scanning Glass (B), and their surroundings may be hot after scanning a lot of documents continuously. Be sure to allow the inside of the scanner to cool down before performing any maintenance or coming in contact with the inside of the unit. Note 1: Roller Cleaning Paper • Open the bag on the dotted line and take out the Roller Cleaning Paper. • If the bag is left open for a long period of time before using it, the alcohol will evaporate. Please use the Roller Cleaning Paper immediately after opening the bag. • The Roller Cleaning Paper (KV-SS03 Option) is available from sales channel. Note 2: How to clean sensors (detectors) Remove the brush from the accessory Blower and blow off the dust with the blower. Description **Action Code Remarks Paper Feed Roller C 1. After cleaning these three rollers, execute “Clear Counter for cleaning roller” with Service Utility. (See 9.3.4.) 2. Refer to Note 1 (Roller Cleaning Paper). *2 Separation Roller C *2 Double-feed Prevention Roller C Drive Roller 1 C Refer to Note 1 (Roller Cleaning Paper). Drive Roller 2 C Drive Roller 3 C Exit Roller C Free Roller 1 C Free Roller 2 C Free Roller 3 C *1 Scanning Glass (F) C *1 Scanning Glass (B) C Reference Plate (F) C, B Refer to Note 1 (Roller Cleaning Paper). Refer to Note 2 (How to clean sensors (detectors)). Reference Plate (B) C, B Ionizer (Ion outlet) B 1. Refer to Note 2 (How to clean sensors (detectors)). Reference Sheets for sensors B Paper Sensor B Waiting Sensor (on the USS / WAITING SENSOR Board) B Starting Sensor (Board) B Slit Detect Sensor (Board) B Exit Sensor (on the ENDING SENSOR Board) B Double Feed Detector (G) B Double Feed Detector (R) B

still occurs, with a vacuum cleaner, remove any staples and paper dust inside and outside the scanning glass, being careful not to scratch the glass surface or its surroundings. (Don't clean the glass surface or its surroundings with the included Blower.) Note 4: *2 Direction for wiping rollers

Note: * How to blow off any dirt that has accumulated on the self-cleaning brushes attached to the Reference Plates (F) and (B) 1. Rotate the Reference Plates (F) and (B) in the direction of the arrows so that you can see the brush. 2. With the included blower, blow off any dirt on the self-cleaning brushes. 3. After cleaning, rotate the plates in the direction of the arrow to return them to the original background color.

1. Remove the Exit Roller. (See 8.5.32.) 2. With the included Roller Cleaning Paper or Model KV-SS03 (Option: Roller Cleaning Paper), clean the surface of the Exit Roller. When cleaning it, wipe off the dust on the roller surface all the way around it, proceeding from one end to the other in the direction of the arrows shown in the figure. 3. With the included Roller Cleaning Paper or Model KV-SS03 (Option: Roller Cleaning Paper), clean the surface of the Exit Free Roller. 4. With the included blower, blow off the dust on the Exit Sensor.

7.3.1. Replacing Paper Feed Roller Module (1) Turn off the scanner. (2) Remove the current Paper Feed Module. (See 8.4.1.) (3) Take out a new Paper Feed Module in the optional "Roller Exchange Kit (KV-SS039)". (4) Install the new Paper Feed Module. With the lever of the Paper Feed Roller Module lowered, insert both protrusions into the grooves, and then slowly raise the lever in the direction of the arrow until it clicks into place. Note: Make sure that the lever of the Paper Feed Roller module is firmly locked. If the lever is not firmly locked, the lever or the module may become damaged or may not function correctly.

(1) Turn off the scanner. (2) Remove the current Double-feed Prevention Roller. (See 8.5.12.) (3) Take out a new Double-feed Prevention Roller in the optional "Roller Exchange Kit (KV-SS039)". (4) Install the new Double-feed Prevention Roller. Align the shaped shaft with the notch in the roller mount, and then insert the shaft in the notch. Push the shaft on the opposite side until it clicks into place. Note: 1. After you install the Double-feed Prevention Roller, make sure that the shaft is inserted into the tab, and that the shaft will not rotate or move. If the roller is not installed correctly, it may cause double feeding or a paper jam. 2. After replacing the Paper Feed Roller Module and Double-feed Prevention Roller, execute "Clear Counter for replacing roller" with Service Utility. (See 9.3.4.)

assemblies. When reassembling, perform the steps in the reverse order unless otherwise instructed in Reassembling Notes. Note: Disassembly flowchart explanation * This sample flowchart shows that, to disassemble C, the procedures 1 and 2 must be performed first before proceeding to the procedure 3.

1. Remove the 8 screws (a) and 2 screws (b) that support the Cover Plate on the bottom of the scanner. Then, remove the Cover Plate. 2. Disconnect all connectors (9 connectors and 2 flat cables) on the CONTROL Board. 3. Remove the 6 screws and the 2 screws with ground lugs on the CONTROL Board. Then, remove the CONTROL Board. 4. Disconnect all connectors (8 connectors and 1 flat cable) on the DRIVE Board. 5. Remove the 2 screws that fasten the Heatsink. 6. Remove the 6 screws on the DRIVE Board. Then, remove the DRIVE Board.

2. While pushing the ribs of the door in the direction of the arrow (1), pull the door away in the direction of the arrow (2) to remove it. . 1. Remove the Imprinter Door. (See 8.3.1.) 2. Remove the 2 screws. 3. Push the ADF Door Release to open the ADF Door. 4. Remove the 2 screws (1 from each side). 5. While pulling the hinge areas of the Rear Cover outwards, pull the cover backward to remove it.

8.3.4. Optical Unit Front 1. Remove the Rear Cover. (See 8.3.2.) 2. Disconnect the 3 connectors. Then, release them from the clampers. 3. Disconnect the flat cable. 4. Remove the 3 screws. Then, remove the USS RELAY Board. 1. Remove the USS RELAY Board. (See 8.3.3.) 2. Remove the 4 screws from the Relay USS Plate. 3. Disconnect 2 connectors on both sides of CCD (F) Board. 4. Release the connector from the clamper to release the plate from the scanner.

5. Remove the 2 screws on both sides of Optical Unit Front. 6. While holding up the Optical Unit Front, pull the unit horizontally and backwards to remove it. 1. Remove the Optical Unit. (See 8.3.4.) 2. Remove the 3 screws. 3. Release the 3 claws of the Sub Exit Conveyor Assembly to remove it.

8.4.2. Scanning Glass (F) 8.4.3. Light Unit (F) 1. Push the ADF Door Release to open the ADF Door. 2. Move the lever (A) of the Paper Feed Roller Module in the order indicated by the arrows ((1), (2)), and then pull out the module towards you. 1. Push the ADF Door Release to open the ADF Door. 2. Remove the screw. 3. Slide the Scanning Glass (F) in the direction of the arrow. Then, remove the glass. (Reassembling Note) Note the direction and facing of the glass before removing it, and reassemble it in the same way. 1. Remove the Scanning Glass (F). (See 8.4.2.) 2. Remove the screw on the left. 3. Remove the screw and disconnect the connector on the right. 4. Remove the Light Unit (F). (Reassembling Note) When reassembling the Light Unit (F) and the Optical Unit (F), be sure to reassemble the Optical Unit (F) first. Otherwise, the scanning position may shift.

8.4.5. STARTING SENSOR Board 1. Push the ADF Door Release to open the ADF Door. 2. Remove the 2 screws. 3. Remove the 2 screws (1 from each side). 4. Remove the Sub Conveyor Plate from the scanner. Reassembling Note: When reassembling the Sub Conveyor Plate, be sure to insert the plate inside the claws of the Sub Chassis R and Sub Chassis L. 1. Remove the Sub Conveyor Plate. (See 8.4.4.) 2. Release the poly-slider that holds the Free Roller shaft. 3. Remove the Free Roller Assembly.

5. After releasing the connector to the STARTING SENSOR Board from the clamper, disconnect the connector.

1. Remove the Light Unit (F). (See 8.4.3.) 2. Remove the 2 springs (1 from each side of the Reference Plate (B)). Disassembling Note: How to remove springs Make sure to release one side of the spring hook while holding the other side of the spring hook not to lose the spring.

both sides. 4. Remove the Gear and poly-slider. 5. Slide and remove the plate. Reassembling Note: How to attach the spring 1. With one side of the spring hung to a wire (about 3 inches long), reassemble the spring around the Reference Plate (B). 2. Pass the wire behind the bearing for the plate. 3. Hook one side of spring while pulling the other side of the wire. Then, hook the other side of the spring. 4. Remove the wire.

8.4.8. Top Cover 1. Push the ADF Door Release to open the ADF Door. 2. Remove the screw. 3. Pull out and remove the Inner Cover T. 1. Remove the Inner Cover T. (See 8.4.7.) 2. Remove the 2 screws. 3. Open the Imprinter Door, and then remove the 2 screws. 4. Remove the Top Cover.

8.4.10. USS / WAITING SENSOR Board 8.4.11. BENT PAPER S (R) Board and BENT PAPER R (R) Board 1. Remove the Imprinter Door. (See 8.3.1.) 2. Remove the Top Cover. (See 8.4.8.) 3. Release the 2 connectors from the clampers. 4. Disconnect the 5 connectors to the BENT RELAY Board. 5. Remove the 2 screws on the BENT RELAY Board. 1. Remove the Imprinter Door. (See 8.3.1.) 2. Remove the Top Cover. (See 8.4.8.) 3. Remove the screw on the USS / WAITING SENSOR Board. 4. Disconnect the connector to the USS / WAITING SENSOR Board. 1. Remove the Imprinter Door. (See 8.3.1.) 2. Remove the Top Cover. (See 8.4.8.) 3. Remove the spring to release the Lock Assembly from the scanner. 4. Remove the Lock Assembly.

the BENT RELAY Board. 6. Pull out the BENT PAPER S (R) Board and BENT PAPER R (R) Board. 7. Disconnect the connector to the BENT PAPER S (R) Board. 8. Disconnect the connector, and then remove the 2 screws on the BENT PAPER R (R) Board.

1. Remove the Imprinter Door. (See 8.3.1.) 2. Remove the Top Cover. (See 8.4.8.) 3. Remove the spring to release the Lock Assembly from the scanner. 4. Remove the Lock Assembly. 5. Remove the screw and disconnect the connector from the BENT RELAY Board. 6. Pull out the BENT PAPER S (L) Board and the BENT PAPER R (L) Board. 7. Disconnect the connector to the BENT PAPER S (L) Board. 8. Disconnect the connector, and then remove the 2 screws on the BENT PAPER R (L) Board.

8.4.14. PAPER FEED SELECT SENSOR Board 1. Remove the Imprinter Door. (See 8.3.1.) 2. Remove the Top Cover. (See 8.4.8.) 3. Remove the screw (a) and 2 screws (b) that fasten the Motor Bracket in place. 4. After releasing the connector wires from the clampers, disconnect the connector to the Paper Feed Motor that is being held by the bracket. 5. Remove the 2 screws to release the Paper Feed Motor from the bracket. 1. Remove the Imprinter Door. (See 8.3.1.) 2. Remove the Top Cover. (See 8.4.8.) 3. Remove the screw to release the PAPER FEED SELECT SENSOR Board with the plate from the scanner.

4. Disconnect the connector and remove the screw. 1. Remove the Paper Feed Motor. (See 8.4.13.) 2. Remove the PAPER FEED SELECT SENSOR Board. (See 8.4.14.) 3. Remove the screw (a) and 3 screws (b) that fasten the Reinforcement Plate 2 to the scanner. Then remove the plate. 4. Remove the 2 screws and the Free-roller Plate.

Board. 6. Remove the screw on the SLIP DETECT SENSOR Board.

1. Remove the 2 screws on the right side of the scanner. 2. Push the ADF Door Release to open the ADF Door 3. Remove the screw (a) and screw (b). 4. While slightly flexing the rear of the Right Cover in the direction of the arrow (1) and holding up the cover in the direction of the arrow (2), pull the cover forward.

the Right Cover (with Right Front Cover) from the scanner.

8.5.3. PANEL Board 1. Remove the Right Cover with Right Front Cover. (See 8.5.1.) 2. Remove the 3 screws to release the Right Front Cover from the Right Cover. 1. Remove the Right Front Cover. (See 8.5.2.) 2. Remove the 4 screws to release the Panel Cover from the Right Front Cover. 3. Remove the 3 screws on the PANEL Board.

2. Remove the 2 screws. 3. Disconnect the connector from the POWER Board. 1. Remove the Right Cover (with Right Front Cover). (See 8.5.1.) 2. Disconnect the connector. 3. Remove the 2 screws and the Micro Switch.

2. Remove the screw (a) and 2 screws (b) from the back right of the scanner. Then pull off the Power Box. 3. Disconnect the 2 connectors to release the Power Box from the scanner.

2. Remove the 5 screws that fasten the Power Box Cover to the Power Box. 3. Remove the 7 screws on the POWER Board. 4. Remove the 3 screws that fasten the Heatsink to the side of the Power Box. 5. Disconnect the 3 connectors. 6. Pull the POWER Board from the Power Box. 1. Remove the Power Box. (See 8.5.6.) 2. Remove the 2 screws. 3. Disconnect the 2 connectors to release the Ionizer Board's unit from the scanner.

2. Push the ADF Door Release to open the ADF Door. 3. Remove the screw. 4. While releasing the 3 claws, pull the Left Cover forward.

8.5.11. Drive Belt 1. Remove the Left Cover. (See 8.5.9.) 2. Disconnect the 5 connectors. 3. Remove the 2 screws on the USR RELAY Board. 1. Remove the Left Cover. (See 8.5.9.) 2. Loosen the 2 screws. Push down the lever until the belt goes slack, and then tighten the screws to hold the lever in place. 3. Remove the Drive Belt. Reassembling Note: BELT LAYOUT a. Reattach the Drive Belt as shown in the following figure. b. Loosen the 2 screws. (Loosening the 2 screws will make the belt tighten properly.) c. Tighten the 2 screws.

1. Push the ADF Door Release to open the ADF Door. 2. Open and remove the Double-feed Prevention Cover. 3. While releasing the claw, remove the Double-feed Prevention Roller.

1. Remove the Double-feed Prevention Roller. (See 8.5.12.) 2. Remove the screw. 3. While releasing the 3 claws on the bottom of Hopper Plate Assembly and pushing down the top of the Gate, pull and remove the assembly forward. (1) While pull the Hopper Plate Assembly forward, release the 3 claws (Claw1). (2) While pull the Hopper Plate Assembly upward, release the 2 claws (Claw2) to remove the assembly. 4. Remove the screw with a ground-lug and connector on the bottom of the assembly to release the assembly from the scanner.

1. Remove the Hopper Plate Assembly. (See 8.5.13.) 2. Remove the screw to release the Paper Sensor with plate from the Hopper Plate Assembly. 3. Remove the screw to separate the sensor from the plate. 1. Remove the Hopper Plate Assembly. (See 8.5.13.) 2. Remove the screw, and then disconnect the connector.

1. Remove the Left Cover. (See 8.5.9.) 2. Remove the Hopper Plate Assembly. (See 8.5.13.) 3. Remove the screw (a) and 4 screws (b) on the Reinforcement Plate. 4. Remove the screw (a) on the left side. 5. Pull upward and remove the Reinforcement Plate. 6. Remove the 4 screws, and then raise the DFP Pressure Motor with plate.

8.5.18. Inner Cover C 7. Disconnect the connector, and then remove the 2 screws to release the motor from the plate. 1. Remove the DFP Pressure Motor. (See 8.5.16.) 2. Remove the screw, and then disconnect the connector of the DFP HOME SENSOR Board. 1. Remove the 2 screws that fasten the Inner Cover C to the scanner. 2. Push down the cover to remove it.

2. Remove the 2 screws that fasten the Discharge Brush. 1. Remove the Drive Belt. (See 8.5.11.) 2. Remove the Inner Cover C. (See 8.5.18.) 3. Remove the Inner Cover L. 4. Remove the 2 screws that fasten the Heatsink for Conveyor Motor. 5. Remove the 2 screws that fasten the Conveyor Motor in place.

7. Remove the Heatsink from the Conveyor Motor. 8. Pull and remove the Conveyor Motor.

1. Remove the Conveyor Motor. (See 8.5.20.) 2. Remove the 2 screws that fasten the Optical Unit Back to the scanner. 3. Pull the unit horizontally and forward to remove it. 4. Disconnect the 2 connectors to release the unit from the scanner. Reassembling Note: Be sure to assemble the unit so that the claws of the unit can be matched with the square holes of the scanner. After removing the Conveyor 1, check whether the claws are properly inserted in the holes.

8.5.23. Scanning Glass (B) 1. Remove the Optical Unit Back. (See 8.5.21.) 2. Remove the screw, and then disconnect the connector. 1. Remove the Left Cover. (See 8.5.9.) 2. Remove the Right Cover. (See 8.5.1.) 3. Remove the Rear Cover. (See 8.3.2.) 4. Remove the screw. 5. Slide the Scanning Glass (B) in the direction of the arrow to remove the glass. Reassembling Note: Note the direction and facing of the glass before removing it, and reassemble it in the same way.

1. Remove the Scanning Glass (B). (See 8.5.23.) 2. Remove the screw on the right, as seen from the back. 3. Remove the screw and disconnect the connector on the left, as seen from the back. 4. Remove the Light Unit (B). Reassembling Note: When reassembling the Light Unit (B) and the Optical Unit (B), be sure to reassemble the Optical Unit (B) first. Otherwise, the scanning position may shift.

1. Remove the Light Unit (B). (See 8.5.24.) 2. Remove the 2 springs (1 from each side of the Reference Plate (F)). Disassembling Note: How to remove springs Refer to 8.4.6. 3. Release the 2 poly-sliders on both sides that fasten the Reference Plate (F) to the scanner. 4. Remove the Gear and poly-slider. 5. Slide and remove the plate. Reassembling Note: How to attach the spring Refer to 8.4.6.

1. Remove the Left Cover. (See 8.5.9.) 2. Remove the Right Cover. (See 8.5.1.) 3. Remove the Rear Cover. (See 8.3.2.) 4. Remove the screw with a washer on the right, as seen from the back. 5. Remove the screw on the left, as seen from the back. 6. Remove the Conveyor 1. 1. Remove the Drive Belt. (See 8.5.11.) 2. Remove the Conveyor 1. (See 8.5.26.) 3. Pull out the Drive Roller 2 in the direction of the arrow.

8.5.29. Drive Roller 1 1. Remove the Drive Roller 2. (See 8.5.27.) 2. Remove the 2 screws (1 from each Ionizer). 3. Remove the 2 screws with ground-lugs (1 from each Ionizer). 4. Pull the Ionizer L and Ionizer R. 1. Remove the Left Cover. (See 8.5.9.) 2. Remove the Right Cover. (See 8.5.1.) 3. Remove the Drive Belt. (See 8.5.11.) 4. Remove the Hopper Plate Assembly. (See 8.5.13.) 5. Pull out the Drive Roller 1 in the direction of the arrow.

1. Remove the Left Cover. (See 8.5.9.) 2. Remove the Right Cover. (See 8.5.1.) 3. Remove the Rear Cover. (See 8.3.2.) 4. Remove the screw with a washer on the right, as seen from the back. 5. Remove the screw on the left, as seen from the back. 6. Remove the Conveyor 2. 1. Remove the Conveyor 2. (See 8.5.30.) 2. Remove the Power Box. (See 8.5.6.) 3. Remove the Drive Belt. (See 8.5.11.) 4. Remove the spring, and then pull out the Drive Roller 3.

2. Remove the Power Box. (See 8.5.6.) 3. Remove the Drive Belt. (See 8.5.11.) 4. Remove the Discharge Brush. (See 8.5.19.) 5. Pull out the Exit Roller in the direction of the arrow.

9.1. Main Menu Indication for Service Utility This section describes the functions of the service utility software, such as adjustments, diagnosis, configuration and maintenance. This utility software also includes the functions contained in the User Utility software enclosed in the scanner. Executing “ServiceUtility.exe” will allow you to operate all the functions found in this service utility software. Note • This utility software is not included with the scanner. Please call service or technical support to obtain the utility software. • This software should be used only by an authorized service technician. Improper use of this software may cause damage to the scanner.

Service Utility item list is as follows. Note: When two or more scanners are connected to a PC, execute “Select Scanner” to specify the scanner before evaluating. The procedure is as follows. 1. Click “Select Scanner” on the main menu. 2. Select the product number of the scanner to evaluate. Item Purpose Remarks Scanner Status *2 Used to indicate scanner status (Ready, Error, or Caution) 2 Scanner Information *2 Used to indicate scanner information such as Model, firmware version, board revision, memory size, interface, Interface condition, etc. 2 Scanner Counter Update All Counters *2 Used to update the values of System Counter, Cleaning Roller Counter, and Replacing Roller Counter 1, 6 Clear Counter (After Clean Roller) *2 Used to reset the Roller Cleaning Counter to zero after cleaning the rollers 1, 6 Clear Counter (After Replace Roller) *2 Used to reset the Roller Replacement Counter to zero after replacing the rollers 1, 6 Scanner Condition Sleep Mode *2 Used to set “Waiting Time” before entering the Sleep Mode 1 Clean Imprinter*1 *2 Used to clean the ink jet head of the imprinter 6 Buzzer Setting *2 Used to set the Buzzer ON/OFF condition 1 User Shading*2 Used to execute shading correction at the user side, or to restore the shading data to the default (Factory-setting) 4 Caution Setting*2 Used to set the number of the document scanning that enables the Service Utility to inform the caution information (roller replacement timing and roller cleaning timing) 1, 3 Set Default Used to set “Sleep Mode”, “Caution Setting”, and “Feed Speed” to the default 3 Test LED Used to periodically light the indicators on the front cover 5 Key / Sensor Used to do keys' or sensors' ON/OFF test 5 Sensor Sensitive Level Used to check the status (Offset level, Slice level) of each Sensor (Waiting, Slip Detect, Starting, Exit) 5 Feed Motor Used to check the operation of the motor periodically rotating in the paper-feed direction and its reverse direction Note: • Rotating in the paper-feed direction will allow the Paper Feed Roller Module to go down to perform the paper-feed function. • Rotating in the reverse direction will allow the Paper Feed Roller Module to rise to perform the paper-separation function. 5 Conveyor Motor Used to check Conveyor Motor rotation 5 DFP Pressure Drive Used to check DFP Pressure Motor rotation 5 Gate Drive Used to check the open/close operation of the gate by rotating the Conveyor Motor in the paper-feed direction or its reverse direction. 5 Feed Used to check paper feed condition 5 Sleep Mode Used to check whether the sleep mode function works properly 5 CCD Level Used to check the peak output-level after setting CCD lighting level on each side 5 Image Sensor Output Used to check whether CCD operates normally by outputting the CCD's output level or whether a dust is attached on the Scanning Glass 5 Double Feed Used to check the level of the Double Feed Detector (R) (Response level) after setting the ultrasonic emission level of the Double Feed Detector (G) 5 Memory Used to execute memory R/W test 5 Ionizer Used to check whether ON/OFF (Enable/Disable) control to output Ionizer properly operates. 5

*2: These items are also available in User Utility software. *3: This setting is needed when replacing CONTROL Board or IC0004. Remarks 1. Parameter setting by user 2. Status indication 3. Parameter setting by service person 4. Adjustment 5. Diagnosis 6. Maintenance Adjust Shading Used to execute shading correction 4 All Position Used to adjust scanning length, paper end position, width, vertical position, and horizontal position adjustment for front and back sides automatically 4 Individual Position 1. Used to execute automatic length, paper end position, width, vertical position, or horizontal position adjustment for front and back sides, individually 2. Used to adjust scanning length, paper end position, width, vertical position, or horizontal position for front and back sides manually 4 Double Feed Used to correct the Double Feed Detector’s ultrasonic emission level automatically or manually 4 Bent Paper Sensor Used to correct the Bent Paper Sensor’s sending level automatically or manually 4 USB ID *3 Used to set a USB ID for the scanner, connected to the PC 3 Feed Speed Used to change the paper feed speed 3 Other Save Information *2 Used to save the scanner and PC information 1 Item Purpose Remarks

9.3.1. Scanner Status This function indicates the scanner status, and updates it every few seconds. The status messages and their contents are as follows. Classification Code Status Message Contents — Scanner has no error. No error U11, U12, U13, U14, U16 A paper jam has occurred. Open the scanner’s door, remove the documents, and close the door. Place the documents back in the document feed tray. U11: Paper Feed Jam (Paper did not reach the Waiting Sensor.) U12: Conveyor Jam 1 (Paper did not reach the Slip Detect Sensor.) U13: Conveyor Jam 2 (Paper did not reach the Starting Sensor.) U14: Conveyor Jam 3 (Paper did not reach the Exit Sensor.) U16: Exit Jam 1 (Paper did not pass through the Exit Sensor.) U18 Paper remains in the Scanner. Open the scanner’s door, remove the documents, and close the door. Place the documents back in the document feed tray. Document remains in the scanner, or dust is attached around a sensor. U23 A paper double feed has occurred. Open the scanner’s door, remove the documents, and close the door. Place the documents back in the document feed tray. Double feed error U25 A stapled document has been detected. (Double-feed detection) Place the documents back in the document feed tray. The double-feed detection of the stapled document has been detected. U26 A stapled document has been detected. (Bent-paper detection) Place the documents back in the document feed tray. The bent-paper detection of the stapled document has been detected. U30 Scanner Door is open! Please close the door. ADF Door or Imprinter Door is open. Fxx System error occurred! Please consult with a service representative. Service level error occurred. — *** Caution*** The rollers need to be cleaned. Please clean the rollers. Please select “Clear Counter” button after cleaning the rollers. Caution for cleaning rollers. — ***Caution*** The replaceable rollers (consumable) are reaching the end of their usable life. To insure reliable operation, please replace these rollers with Roller Exchange Kit for your specific scanner. After replacing the roller, select the “Clear Counter” button. Caution for replacing rollers. — *** Caution*** The front reference plate may need to be cleaned. Please clean the front reference plate. The reference plate is dirty. — *** Caution*** The back reference plate may need to be cleaned. Please clean the back reference plate. The reference plate is dirty. — Scanner is not connected! Scanner is not connected to PC properly.

Fig. 9.3.2.1 Classification Code Outline Fig. 9.3.2.2 Error Code Outline Classifica- tion Code Contents Classifica- tion Code Contents Classifica- tion Code Contents U1- Document H1- — F1- Memory U2- Document H2- — F2- — U3- Door H3- — F3- Hardware U4- — H4- — F4- Paper Feed U5- — H5- — F5- Paper Sensor U6- — H6- — F6- Scanning U7- — H7- — F7- — U8- — H8- — F8- Others (Sensors) U9- — H9- — F9- — ST1 Error Contents 0x No error 1x Paper jam error 2x Door open error 3x Mechanical function error 4x Paper sensor error 5x Scanning error 6x Other (Sensor) error 7x — 8x Hardware error 9x Hardware error Ax — Bx — Cx — Dx — Ex — Fx —

Classifica- tion Code Error Code Contents ST1 ST2 ST3 ST4 - 00 00 00 00 No error - 0A 00 00 00 Stop by clicking “STOP” - 0B 00 00 00 Stop by ADF stop-command U11 11 00 00 00 Paper feed jam (Paper didn’t reach the Waiting Sensor.) U12 12 00 00 00 Conveyor jam 1 (Paper didn’t reach the Slip Detect Sensor.) U13 13 00 00 00 Conveyor jam 2 (Paper didn’t reach the Starting Sensor.) U14 14 00 00 00 Conveyor jam 3 (Paper didn’t reach the Exit Sensor.) U16 16 00 00 00 Exit jam (Paper did not pass through the Exit Sensor.) *1U18 18 *1xx 00 00 Document remains in scanner (*1ST2: Sensor Information) U23 1C 00 x 00 Double feed error (ST3:0 Feed interval /:3 Ultrasonic) U25 1E 00 00 00 Detect document with staples (Double-feed detection) *2U26 1F *2x 00 00 Detect document with staples (Bent-paper detection) (*2ST2: Bent Sensors’ Information) U30 20 00 00 00 ADF Door or Imprinter Door is open. F17 87 x x 00 SD-RAM error (ST2:1 SD-RAM error for the front default image /:2 SD-RAM error for the back default image), (ST3:0 Memory check error /:1 Clock phase error) F18 88 x 00 00 Extension SD-RAM error (ST2:1 Extension SD-RAM error for the front image /:2 Extension SD-RAM error for the back image) F31 95 01 00 00 Analog IC (for front side) error 95 02 00 00 Analog IC (for back side) error 95 03 00 00 Analog IC (for front side) error and Analog IC (for back side) error F33 97 00 00 00 USB IC error F34 98 00 00 00 EEPROM error F35 99 x 00 00 Image processing FPGA/DDR2 error (ST2: 0 FPGA configuration error /:1 Front DDR2 error /:2 Back DDR2 error) F36 9A 00 00 00 Front Gate Array error (Access error) 9A 01 00 00 Front Gate Array error (Shading RAM error) F38 9C 00 00 00 Back Gate Array error (Access error) 9C 01 00 00 Back Gate Array error (Shading RAM error) F42 32 00 00 00 DFP Home Position error F60 50 00 00 00 Front-side gain adjustment error F61 51 00 00 00 Front-side black level adjustment error F62 52 00 00 00 Back-side gain adjustment error F63 53 00 00 00 Back-side black level adjustment error F80 60 00 00 00 Double Feed Detector error F81 61 00 00 00 Ionizer error (Ionizer ON error) 61 01 00 00 Ionizer error (Ionizer OFF error)

1. Model 2. Firmware Version 3. Board and Gate Array (LSI) versions 4. Memory size for front and back sides 5. Interface 6. Imprinter condition 7. Flatbed Option Enable/Disable 9.3.4. Scanner Counter Item Operation Default Remarks Update All Counters 1. Click “Update All Counters” to update the counters’ values. 2. Confirm the value of the “System”, “After Clean Roller”, and “After Replace Roller” are also updated on the main menu (Service Utility). — Clear Counter (After Clean Roller) 1. Click “Clear Counter” for “After Clean Roller” on the main menu. 2. According to the message on the display, click “OK” to clear the cleaning roller counter. 3. Confirm that the counter value is zero on the main menu. — After cleaning rollers (Paper Feed, Separation, DFP Rollers, and so on), execute this item. Clear Counter (After Replace Roller) 1. Click “Clear Counter” for “After Replace Roller” on the main menu. 2. According to the message on the display, click “OK” to clear the roller replacement counter. 3. Confirm that the counter value is zero on the main menu. — After replacing rollers (Paper Feed, Separation, and DFP Rollers), execute this item.

2. Set “Waiting Time” (Unit: minutes) to specify the amount of time until the scanner enters the sleep mode. 3. Click “OK” to renew the setting. 15 minutes When returning back to the Ready Mode from the Sleep Mode, execute “Sleep Mode” for Test (9.3.6) on the main menu, and then click “STOP” on the “Sleep Mode” dialog box. Clean Imprinter 1. Click “Clean Imprinter” on the main menu to clean the imprinter’s print head. — This item is available only if the optional Imprinter is installed to the scanner. Buzzer Setting 1. Click “Buzzer Setting” on the main menu. 2. Set “Buzzer Setting (ON or OFF)” on the “Buzzer Setting” dialog box. 3. Click “OK” to renew the setting. — User Shading 1. Click “User Shading” on the main menu. 2. Push “Start Shading” or “Restore Default” on the “User Shading” dialog box. Note: a. When selecting “Restore Default”, the factory-setting data will be overwritten in stead of the current shading data. b. The following procedures “3” or more are available only for selecting “Start Shading”. 3. Clean the conveyor, rollers, Scanning Glass (F), and Scanning Glass (B) according to the message on the display. And click “OK”. 4. Reverse Reference Plates to white according to the message on the display. And click “OK”. 5. Set the accessory Shading Sheet or Shading Sheet (Part No.: See 14.8.) on the Hopper in landscape orientation. 6. And click “OK” to scan the Shading Sheet. 7. Reverse the Reference Plates to black according to the message on the display. And click “OK” 8. Click “OK”, and then click “Close” to return to the main menu. — 1. Before executing the shading function, be sure to clean the Scanning Glass (F), Scanning Glass (B), and rollers, and conveyors related to conveying documents. 2. Until this process is completed, don’t stop the process by opening any doors or turning off the scanner. Caution Setting 1. Click “Caution Setting” on the main menu. 2. Change the parameter value on the “Caution Setting” dialog box. 3. Click “OK” to renew the setting. Clean: 20000 Replace: 350000 Set Default 1. Click “Set Default” on the main menu. 2. Click “Set Default” on the “Set Default” dialog box to set the default values for “Sleep Mode”, “Caution Setting”, and “Feed Speed”. 3. Click “Close” to return to the main menu. —

2. Click “START” on “LED” dialog box to start LED Test continuously until clicking “STOP”. 3. Click “Close” to return to the main menu. — Each indicator turns on or off in a constant period. Key / Sensor 1. Click “Key / Sensor” on the main menu. 2. Check the key and sensor status on the “Key / Sensor” dialog box. 3. Click “Close” to return to the main menu. — Sensor Sensitive Level 1. Click “Sensor Sensitive Level” on the main menu. 2. Check each sensor’s sensitive level (Offset, Slice) on the Sensor Sensitive Level dialog box. 3. Click “Close” to return to the main menu. — Feed Motor 1. Click “Feed Motor” on the main menu. 2. Click “START” on the “Feed Motor” dialog box to start to rotate Paper Feed Motor periodically controlled in the paper-feed direction and its reverse direction until clicking “STOP”. Note: • Rotating in the paper-feed direction will allow the Paper Feed Roller Module to go down to perform the paper-feed function. • Rotating in the reverse direction will allow the Paper Feed Roller Module to rise to perform the paper-separation function. 3. Click “Close” to return to the main menu. — Conveyor Motor 1. Click “Conveyor Motor” on the main menu. 2. Click “START” on the “Conveyor Motor” dialog box to start to rotate Conveyor Motor continuously until clicking “STOP”. 3. Click “Close” to return to the main menu. — DFP Pressure Drive 1. Click “DFP Pressure Drive” on the main menu. 2. Click “START” on “DFP Pressure Drive” dialog box to start to rotate DFP Pressure Motor continuously until clicking “STOP”. 3. Click “Close” to return to the main menu. — Gate Drive 1. Click “Gate Drive” on the main menu. 2. Click “START” on the “Gate Drive” dialog box to start to execute the open/close operation of the gate until clicking “STOP”. 3. Click “Close” to return to the main menu. —

2. Click “Feed” on the main menu. 3. Set “Test Mode” and “Test Condition” depending on each scanning condition. Note: Operation “Imprinter” is available only when the optional Imprinter is installed. 4. Click “START” on the “Feed” dialog box to start feeding documents. 5. Click “STOP” on the “Feed” dialog box to stop the test. 6. Click “Close” to return to the main menu. — Sleep Mode 1. Click “Sleep Mode” on the main menu. 2. Click “START” on the “Sleep Mode” dialog box to enter the sleep mode. 3. Click “STOP” to return from the sleep mode. 4. Click “Close” to return to the main menu. — CCD Level 1. Click “CCD Level” on the main menu. 2. Reverse the Reference Plate (F) and Reference Plate (B) to white. 3. Set “Gain” of the Front and Back sides on the “CCD Level” dialog box. 4. Click “START” on the “CCD Level” dialog box to start the CCD Level Test. 5. Check whether the peak level is within specifications. (See Remarks.) 6. Click “STOP” to finish this test. 7. Click “Close” to return to the main menu. — Item Operation Default Remarks

2. Push the ADF Door Release to open the ADF Door. And hold a sheet of clean white paper between the Scanning Glass (F) and Scanning Glass (B), and then close the ADF Door. 3. Set the value of “Gain”. (Value:10 to 120) 4. Select a side (Front or Back). 5. Click “START” on the “Image Sensor Output” dialog box to start monitoring the image output level graph. 6. Click “STOP” on the “Image Sensor Output” dialog box to finish the test. 7. Click “Close” to return to the main menu. 8. Open the ADF Door, and then remove the paper. — Note: This operation indicates a sensor output waveform to check whether there is any partial depression of the level. If the waveform has any partial depression, clean the surface of the Scanning Glass (F) or Scanning Glass (B). When setting "Shading Correction" by checking check-box, the image sensor output-level after shading correction can be seen. Double Feed 1. Click “Double Feed” for “Test” item on the main menu. 2. Set “Send Level” on “Double Feed Sensor” dialog box. 3. Push the ADF Door Release to open the ADF Door. And hold a piece of clean white paper between Scanning Glass (F) and Scanning Glass (B), and then close the ADF Door. 4. Click “START” on the “Double Feed Sensor” dialog box to start the double feed sensor’s sensitivity test. 5. Check whether the peak level is within the specification. (See Remarks.) 6. Click “STOP” to finish this test. 7. Push the ADF Door Release to open the ADF Door. And remove the white paper, and then close the ADF Door. 8. Click “Close” to return to the main menu. — Memory 1. Click “Memory” on the main menu. 2. Click “START” on the “Memory” dialog box to start Memory Read / Write Test. 3. Check the result. 4. Click “Close” to return to the main menu. — For details on Error Codes, refer to Sec. 9.3.2. Ionizer 1. Click “Ionizer” on the main menu. 2. Click “START” on the “Ionizer Test” dialog box to start Ionizer ON /OFF Test. 3. Check the result. 4. Click “Close” to return to the main menu. — Note: This test does not starts until the ADF Door is closed. Item Operation Default Remarks

2. Confirm the message “The data of User Shading will be also overwritten” on the display. And if the message is acceptable, click “OK”. Note: This procedure is avaiable only after executing User Shading. 3. Clean the conveyor, rollers, Scanning Glass (F), and Scanning Glass (B) according to the message on the display. And click “OK”. 4. Reverse Reference Plates to white according to the message on the display. And click “OK”. 5. Set the accessory Shading Sheet or Shading Sheet (Part No.: See 14.8.) on the Hopper in landscape orientation. 6. And click “OK” to scan the Shading Sheet. 7. Reverse the Reference Plates to black according to the message on the display. 8. Click “OK” to return to the main menu. — Until this process is completed, don’t stop the process by opening any doors or turning off the scanner. All Position 1. Set 2 pcs of test chart A (Part No.: See 14.8.) on the Hopper in portrait orientation. 2. Click “All position” on the main menu to execute scanning position, length, width, and paper end adjustment. 3. Check the result. 4. Click “OK” to return to the main menu. — Set 2 pcs of test chart A in order. 1st page: Front side 2nd page: Back side

a. Set test chart A (Part No.: See 14.8.) on the Hopper. b. Click “Individual Position” on the main menu. c. Click one of 8 “Adjust Automatically” buttons on the “Individual Position” dialog box to execute the adjustment. d. Check the result. e. Click “OK” to finish the adjustment. f. Click “OK” to return to the main menu. 2. Adjust Manually. a. Click “Individual Position” on the main menu. b. Change the parameter (mm,%) on the “Individual Position” dialog box as required. (Refer to Remarks.) c. Click “OK” to renew the setting, and to return to the main menu. — 1. “Adjust Automatically” a. Length b. Paper End Position c. Front Paper Width d. Front V. Position e. Front H. Position f. Back Paper Width g. Back V. Position h. Back H. Position 2. Adjust Manually (Length) +: Increasing the number makes the scanning document length shorter. (Vertical Position) +: Increasing the number makes the document scanning position shifted upward. (Horizontal Position) +: Increasing the number makes the document scanning position shifted to the left. (Paper End Position) +: On the LC (Length Control) mode, increasing the number allows the paper-end timing to be earlier. (Width) -: Decreasing the number extends the scanning document width. Note If the appropriate scanning position can not be obtained by any of the manual adjustments, check installation. Item Operation Default Remarks

a. Set the Shading Sheet (Part No.: See 14.8.) on the Hopper in portrait orientation, sliding the Document Guides so that they match the document width. b. Click “Double Feed” in “Adjust” section on the main menu. c. Click “Adjust Automatically” on the “Double Feed Sensor” dialog box to adjust the double feed sensitivity. d. Check the result. e. Click “OK” to finish the adjustment. f. Click “OK” on the “Double Feed Sensor” dialog box to return to the main menu. 2. Adjust Manually. a. Click “Double Feed” in the “Adjust “ section on the main menu. b. Change parameter (Send Level) on the “Double Feed Sensor” dialog box, as required. c. Click “OK” on the “Double Feed Sensor” dialog box to return to the main menu. — Item Operation Default Remarks