Toshiba TRST-A10 SERIES Maintenance Manual

TOSHIBA REMOTE RECEIPT PRINTER TRST-A10 SERIES Document No. EO18-13005 Original Nov., 2007 (Revised Jun., 2008) Maintenance Manual

to avoid system failures and to insure proper performance and operation. 2. Failure to follow manual instructions or any unauthorized modification, substitution or change to this product will void the limited product warranty. WARNING! Follow all manual instructions. Failure to do so could create safety hazards such as fire or electrocution.

Page 1. UNPACING ---------------------------------------------------------------------------------------------1- 1 1.1 PROCEDURE ---------------------------------------------------------------------------------------------1- 1 1.2 CHECKS ----------------------------------------------------------------------------------------------------1- 1 1.3 POWER CORD -------------------------------------------------------------------------------------------1- 2 2. INSTALLATION PROCEDURE -------------------------------------------------------------------2- 1 2.1 CONNECTING THE TRST-A10 TO THE POS TERMINAL -----------------------------------2- 1 2.2 CONNECTING THE DRAWER -----------------------------------------------------------------------2- 3 3. DISASSEMBLY AND REASSEMBLY -----------------------------------------------------------3- 1 3.1 MAINTENANCE TOOLS --------------------------------------------------------------------------------3- 1 3.2 DISASSEMBLING THE MAIN BODY ---------------------------------------------------------------3- 2 3.2.1 Removing the Receipt Cover --------------------------------------------------------------------3- 2 3.2.2 Removing the Cover Top --------------------------------------------------------------------------3- 3 3.2.3 Removing the Interface Card --------------------------------------------------------------------3- 4 3.2.4 Removing the PCB ----------------------------------------------------------------------------------3- 5 3.2.5 Removing the Print Block -------------------------------------------------------------------------3- 6 3.2.6 Removing the Paper Low Sensor --------------------------------------------------------------3- 9 3.2.7 Disassembling the Bottom Frame --------------------------------------------------------------3- 9 3.3 REASSEMBLE PROCEDURE ----------------------------------------------------------------------- 3-11 4. DIP SWITCH FUNCTION ---------------------------------------------------------------------------4- 1 4.1 DIP SWITCH SETTINGS -------------------------------------------------------------------------------4- 1 4.2 DATASCOPE MODE ------------------------------------------------------------------------------------4- 2 5. SELF TEST PRINT -----------------------------------------------------------------------------------5- 1 5.1 SELF TEST ------------------------------------------------------------------------------------------------5- 1 5.2 ROLLING ASCII PRINT TEST (RECEIPT) --------------------------------------------------------5- 2 5.3 H PRINT TEST (RECEIPT) ----------------------------------------------------------------------------5- 3 5.4 DUTY CHECK PRINT TEST ---------------------------------------------------------------------------5- 4 5.5 PRINT CURRENT SETTING --------------------------------------------------------------------------5- 5 6. DIAGNOSTICS DESCRIPTION -------------------------------------------------------------------6- 1 6.1 DIAGNOSTICS SETTING ------------------------------------------------------------------------------6- 1 6.2 DIAGNOSTICS FORM DESCRIPTION -------------------------------------------------------------6- 3 6.3 DIAGNOSTICS MENU------------------------------------------------------------------------------------6- 4 6.4 DIAGNOSTICS FORM------------------------------------------------------------------------------------6- 6 7. TROUBLE SHOOTING ------------------------------------------------------------------------------7- 1 7.1 TROUBLESHOOTING PROCEDURE --------------------------------------------------------------7- 1 7.2 TROUBLESHOOTING GUIDE ------------------------------------------------------------------------7- 1 8. PERIODIC MAINTENANCE ------------------------------------------------------------------------8- 1 8.1 PERIODIC MAINTENANCE PROCEDURE -------------------------------------------------------8- 1

9.1 PROCEDURE ---------------------------------------------------------------------------------------------9- 1 9.2 MAIN FIRMWERE DOWNLOAD PROCEDURE -------------------------------------------------9- 2 9.3 ANK/CG DOWNLOAD PROCEDURE --------------------------------------------------------------9- 3 9.4 IPL FIRMWERE DOWNLOAD PROCEDURE ----------------------------------------------------9- 4 9.5 CONFIRMATION OF SETTING ----------------------------------------------------------------------9- 4 CAUTION! 1. This manual may not be copied in whole or in part without prior written permission of TOSHIBA TEC. 2. The contents of this manual may be changed without notification. Copyright © 2007 by TOSHIBA TEC CORPORATION All Rights Reserved 570 Ohito, Izunokuni-shi, Shizuoka-ken, JAPAN

2. Take out the TRST-A10 printer and remove the styrofoam. 3. Take both the TRST-A10 Quick Reference manual and TRST-A1X Safety manual out of the bottom of the carton. 4. Place the TRST-A10 printer on a level surface. 1.2 CHECKS 1. Check for damage or scratches on the machine. 2. Confirm that the TRST-A10 Quick Reference manual and TRST-1X Safety Reference manual is not missing. NOTE: Keep the original carton and Styrofoam for future transportation of the TRST-A10 printer. Polyfoam Printer TRST-A1X Safety Manual TRST-A10 Quick Reference Manual Carton

1-2 1.3 POWER CORD As the power cord is not supplied with this printer, locally purchase the power cord which meets the following standard. For USA and Canada: Power Supply Cord – UL and CSA approved, type SVT, 18/3AWG, rated min. 125V, 10A Attached Plug and Appliance Coupler – UL and CSA approved, molded on type. The plug is parallel-blade grounding type, NEMA 5-15P configuration. The appliance coupler is Female configuration. Both attachment plug and appliance coupler are rated minimum 125V, 10A. For European countries: Power Supply Cord – HAR or domestic approved where the equipment is used, Type H05VV-F, rated minimum 250V, 10A. Attachment Plug and Appliance Coupler – Domestic approved where the equipment is used, molded on type, having grounding terminal rated minimum 250V, 10A. The appliance coupler is Female configuration. For the other countries: Domestic approved, having suitable electrical ratings and characteristics for the end-product specifications and use. The table below shows the sample of domestic safety approval markings. Major safety approval marking (as of June, 2003)

EO18-13005 2.1 CONECTING THE TRST-A10 TO THE POS TERMINAL 2-1 2. INSTALLATION PROCEDURE WARNING! 1. Turn the POS terminal OFF before connecting the TRST-A10 printer. 2. Plug the TRST-A10 power cord into the AC outlet on the wall for power supply. Do not obtain the AC power from the AC outlet of the POS terminal such as ST-A10, ST-7000, etc., because the rush current at the TRST-A10 power on may exceed the rating of the power switch of the POS terminal. Failure to do this may shorten the life of the power switch of the POS terminal. 2.1 CONNECTING THE TRST-A10 TO THE POS TERMINAL CAUTION! 1. Use a locally purchased power cord which meets the standard. 2. Firmly plug the AC adapter cable and the power cord. 1) Turn the printer power OFF. 2) Insert the power cord into the AC inlet. Power Cord AC Inlet

EO18-13005 2.1 CONECTING THE TRST-A10 TO THE POS TERMINAL 2-2 3) Connect and secure the interface cable to the interface connector in the correct orientation. • Serial interface: Secure the connector with the screws. • USB interface: Securely insert the connector until a positive click is heard. • Parallel interface: Secure the connector with the locking tabs. [Serial Interface Connector] [USB Interface Connector] [Parallel Interface Connector] 4) Connect the interface cable to the TOSHIBA POS terminal or Personal Computer, and then plug in the power cord to the AC outlet. POS Terminal Interface Cable

EO18-13005 2.2 CONNECTING THE DRAWER 2-3 2.2 CONNECTING THE DRAWER Connectable drawers must meet the following conditions. • The drawer which includes the Drawer Drive Circuit (DC 24V specification). • The drawer which has 6-pin modular connector. Pin Signal 1 FG 2 DRAWER1 3 DRSW 4 VDR 5 DRAWER2 6 GND 1. Turn the printer power OFF. 2. Connect the drawer cable to the drawer interface connector in the correct orientation. WARNING! 1. The solenoid included in the drawer to be connected should have the minimum of 36 ohm resistance. Under-specified solenoid may cause a machine failure. 2. The output current of the drawer should not exceed 0.8A, as there is a risk of a machine failure. 3. The drawer interface connector is exclusively for connecting a drawer. Do not connect a phone line or any other cables than the specified drawer cable. Doing so may cause a failure of the phone line and the printer.

EO18-13005 3.1 MAINTENANCE TOOLS 3-1 3. DISASSEMBLY AND REASSEMBLY CAUTION! 1. Do not disassemble or adjust the machine as far as it functions properly. Particularly, do not loosen any screws unless it is necessary. 2. After the printer is disassembled and reassembled, be sure to check that there is no abnormality before turning the power ON. 3. During maintenance, be careful not to leave the parts uninstalled or the screws un-tightened inside the printer. 4. When handling the thermal head or electronic components, do not use gloves or other aids, which may build up static electricity. 5. When disassembling or reassembling the printer, check the wires and cables for any damage. Do not run them into a narrow space or set them in improper positions. 6. After reassembling, apply lubricant as required. 3.1 MAINTENANCE TOOLS • Philips-head screwdrivers • Any small flat object (For example: tweezers or a metal ruler) WARNING! 1. Disconnect the power cord before disassembling the printer. 2. The print head becomes very hot while printing. Never touch the print head to avoid getting burned.

EO18-13005 3.2 DISASSEMBLING THE MAIN BODY 3-2 3.2 DISASSEMBLING THE MAIN BODY 3.2.1 Removing the Receipt Cover 1. Move the Receipt Cover into the open position by holding the handle edges and lifting upwards. Lift the Right Hook and rotate the Receipt Cover by 90 degrees to release it. When the 90 degree position is reached, lift the Receipt Cover vertically to remove it CAUTION! Care must be taken not to touch the print head element when removing the printer cover SA. Handle Edges Receipt Cover Right Hook

EO18-13005 3.2 DISASSEMBLING THE MAIN BODY 3-3 3.2.2 Removing the Cover Top 1. Unscrew the M3x8 double-sems screw which secures the Cover Top. NOTE: When removing the screw, be careful not to touch the print head elements with the screwdriver. 2. Gently lift the Cover Top from the rear first. Connecting tabs in the front will snap open allowing you to slide the Cover Top out. NOTE: Be gentle when removing the Cover Top as the connecting tabs may break if excessive force is used. Cover Top M3x8 double-sems screw Connecting Tabs Connecting Tabs

EO18-13005 3.2 DISASSEMBLING THE MAIN BODY 3-4 3.2.3 Removing the Interface Card 1. Remove the 2 screws which secure the Interface card to the Cover Bottom. 2. Use a small flat object (for example: tweezers or metal ruler) to lift the Interface Card out from the Cover Bottom. Pull upwards at the other end of the interface card bracket simultaneously to lift the interface card out. Cover Bottom 3x6 s-tite screw Interface card 3x8-tite screw

EO18-13005 3.2 DISASSEMBLING THE MAIN BODY 3-5 3.2.4 Removing the PCB CAUTION! This step is only possible after completion of section 3.2.3. Do not attempt to remove Main PCB Cage before removing Interface Card. Doing so may cause serious damage to both the Main PCB and interface card. 1. Remove the four 3x6 s-tite screws which secure the PCB Cage to the Print Block. NOTE: When reassembling the PCB Cage, do not forget to attach the Switch Sheet. 2. Tilt the PCB Cage at a 20 degree angle to access the connectors Print Block 4 1 2 3 3x6-tite screws PCB Cage Print Block PCB Cage 3x6-tite screws Switch Sheet

EO18-13005 3.2 DISASSEMBLING THE MAIN BODY 3-6 3. Disconnect the five connectors A to E from the Main PCB. The PCB cage can then be removed from the Print Block. 4. Remove the four 3x6 s-tite screws, then remove the Main PCB from the PCB Cage. 3.2.5 Removing the Print Block 1. Unplug the wire connecting the Print Block to the Paper Low Sensor. A D B E C E D C A D Paper Low Sensor Print Block 3x6 s-tite screw 3x6 s-tite screw 3x6 s-tite screw 3x6 s-tite screw Main PCB PCB Cage

EO18-13005 3.2 DISASSEMBLING THE MAIN BODY 3-7 2. Remove the M3x8 double-sems(small) screw connecting the Print Block to the Cover Bottom. NOTE: When removing the screw, be careful not to touch the print head elements with the screwdriver. 3. Two catches connect the Print Block to the Cover Bottom. Gently place thumb on both catches as shown in the picture and push outwards to release the Print Block. Tilt the Print Block approximately 20 degrees forward to release it from the catch connecting it to the Cover Bottom. You may then remove the Print Block from the Cover Bottom. M3x8 double-sems (small) screw Catch

EO18-13005 3.2 DISASSEMBLING THE MAIN BODY 3-8 4. Remove two screws to release the PCB Stay from the Print Block. Horizontally remove the PCB Stay from the Print Block. NOTE: Please note the following when reassembling the Print Block. After attaching the Print Block to the Cover Bottom, make sure the Cutter Arm is at the position where it blocks the Cutter Home Position Sensor. Otherwise, the Cover may not be firmly closed and the Upper Platen may damage the Cutter Blade. If the Cutter Arm is not at the position as shown in the photo, rotate the Cutter Gear to adjust the Cutter Arm position. 3x6 p-tite 3x6 s-tite PCB Stay Print Block Cutter Arm Cutter Home Position Sensor Cutter Gear Cutter Blade

EO18-13005 3.2 DISASSEMBLING THE MAIN BODY 3-9 3.2.6 Removing the Paper Low Sensor 1. Remove the 3X8 p-tite screw connecting the Paper Low Sensor to the Cover Bottom. Lift the Paper Low Sensor upwards to remove it. 3.2.7 Disassembling the Bottom Frame 1. Remove the Earth Plate by lifting it upwards. Cover Bottom Paper Low Sensor 3x8 p-tite Earth Plate

EO18-13005 3.2 DISASSEMBLING THE MAIN BODY 3-10 2. Remove the Power switch block from the Cover Bottom by using any small flat object (for example: tweezers or metal ruler) to bend it slightly above the emboss as shown in the picture below. NOTE: When reassembling, the Cables must be routed in the same manner as before disassembly as shown in the photo below. Emboss Power Switch Block Wire Holder Power Button Cable Wire Holder Cable Guide

EO18-13005 3.3 REASSEMBLE PROCEDURE 3-11 3. Gently remove the wire from the wire holder before removing the Power Switch Block. Slide the Power switch Block in the direction shown. The Power Switch Block can then be removed from the Cover Bottom. 4. Turn the Cover Bottom around with the base facing upwards and release the Cable Holder by removing a 3X8 p-tite screw. Remove the two 3X8 p-tite screws to release the Water Guide from the Cover Bottom. Lift the Water Guide to remove it from the Cover Bottom. 3.3 REASSEMBLE PROCEDURE Reassemble each part in the reverse order of the disassembly procedure described in Sections 3.2 and 3.3. Wire removed Cable Holder 3x8 p-tite screws Water Guide Cover Bottom

EO18-13005 4.1 DIP SWITCH SETTINGS 4-1 4. DIP SWITCH FUNCTION 4.1 DIP SWITCH SETTINGS The DIP switches are located on the PC board at the bottom of the printer. They are used to set the RS-232C parameters as shown in the following tables. The switches are used to put the printer into various modes for printer configuration set up. Mode Dip Switch 1 setting Dip Switch 2 setting Online Mode (Normal operation) OFF OFF Level 1 Diagnostics Mode (Printer Parameter / Configuration setting) ON OFF Firmware IPL Flash Mode OFF ON* Mfg Adjustment Mode (Print test) ON ON * It is optional to set this switch to ON when reflashing the IPL. DIP Switch Switch 2 is shown in the OFF position 1 2 O N

EO18-13005 4.2 DATASCOPE MODE 4-2 4.2 DATASCOPE MODE Datascope Mode allows the user to test the printer’s communications. When in Datascope Mode the printer receives all communications, but instead of executing the commands it prints them out on receipt paper as hexadecimal numbers in the order received. For example, the ASCII character “A” is printed as the hexadecimal number 41 an so on. To run the Datascope Mode: 1. After you have enabled the Datascope Mode through the Configuration Menu, exit the Configuration Menu. 2. Run a transaction from the host computer. All commands and data sent from the host computer will be printed as hexadecimal numbers as shown in the illustration. 30 31 32 33 34 35 36 37 38 39 40 41 : 0 1 2 3 4 5 6 7 8 9 @ A 41 42 43 44 45 46 47 48 49 50 51 52 : A B C D E F G H I J K L To exit the Datascope Mode: 1. Enter the Configuration Menu again 2. Disable the Datascope Mode 3. Exit the Configuration Menu The printer is in Normal Mode and can communicate with the host computer.

EO18-13005 5.1 SELF TEST 5-1 5. SELF TEST PRINT 5.1 SELF TEST To perform the printer self test, use the Mfg Adjustment menu feature. This feature prints instructions on the receipt for selecting any type of print pattern needed. CAUTION! Be extremely careful when changing any of the printer settings to avoid changing other settings that might affect the performance of the printer. 1. Set DIP switch 1 to ON, DIP switch 2 to ON. 2. Power on the printer while holding the Paper Feed Button. The printer will print the Current Setting Form, then cuts the paper to print the Mfg Adjustment Menu. 3. If you do not hold the Paper Feed Button while power up the printer, it will go to Online Mode. This menu allows you to print different test patterns Selections are made using the Paper Feed Button. ===== Mfg Adjustment Menu ===== Select a sub-menu: EXIT > 1 Click Rolling ASCII Print > 2 Clicks H Print Test > 3 Clicks Duty Check Print > 4 Clicks Print Current Setting > 5 Clicks EEPROM to Default Setting > 6 Clicks Enter code then hold Button DOWN at least 1 second to validate DIP Switch Switch 2 is shown in the OFF position 1 2 O N

EO18-13005 5.2 ROLLING ASCII PRINT TEST (RECEIPT) 5-2 5.2 ROLLING ASCII PRINT TEST (RECEIPT) This option let you run rolling ASCII printing test. The printer prints the resident character set in standard pitch continuously. When Rolling ASCII Print (Rcpt) is selected, printer prints the following menu. After selection of the printing side, test print will start. ** SELECT PRINTING SIDE? Front Side Only > 1 Click Back Side Only > 2 Click Double Side > 3 Click Enter code, then hold Button DOWN at least 1 second to validate Press the Paper Feed Button to stop the test. Rolling ASCII Stop and exit test > Long Click Page number !”#$%& O !”#$%&’ P “#$%&’( Q 00000008

EO18-13005 5.3 H PRINT TEST (RECEIPT) 5-3 5.3 H PRINT TEST (RECEIPT) This option let you run H printing test. The printer prints the ‘H’ character in standard pitch continuously. When H Print Test (Rcpt) is selected, printer prints the following menu. After selection of the printing side, test print will start. Press the Paper Feed Button to start or stop the test. ** SELECT PRINTING SIDE? Front Side Only > 1 Click Back Side Only > 2 Click Double Side > 3 Click Enter code, then hold Button DOWN at least 1 second to validate. Press the Paper Feed Button to stop the test. H Print test Stop and exit test -> Long Click Page number HHHHH H HHHHH H HHHHH H 00000008

EO18-13005 5.4 DUTY CHECK PRINT TEST (RECEIPT) 5-4 5.4 DUTY CHECK PRINT TEST (RECEIPT) This option let you run duty check printing test. The printer prints the 12.5%, 25%, 50% and 100% duty original pattern. When Duty Check Print (Rcpt) is selected, printer prints the following menu. After selection of the printing side, test print will start. Press the Paper Feed Button to start or stop the test. ** SELECT PRINTING SIDE? Front Side Only > 1 Click Back Side Only > 2 Click Double Side > 3 Click Enter code, then hold Button DOWN at least 1 second to validate. Press the Paper Feed Button to continue or stop the test. Duty Check Print Stop and exit test > Short Click Continue test > Long Click 00000008

EO18-13005 5.5 PRINT CURRENT SETTING 5-5 5.5 PRINT CURRENT SETTING This option let you print current setting on receipt. Press the Paper Feed Button to start the test. ** START CURRENT SETTING PRINTING? Return Main Menu > Short Click Start Printing > Long Click NOTE: Press the Paper Feed Button for at least one second to validate the selection. *** Current Setting Form *** Model number : TRST-A10 Serial number : 12345678901 Boot Firmware Version : V00.02 Revision : 00 CRC : DEEB Flash Firmware Version : V00.06 Revision : 00 CRC : 6696 SBCS Version : V00.01 Revision : 00

6.1 DIAGNOSTICS SETTING 6-1 6. DIAGNOSTICS DESCRIPTION 6.1 DIAGNOSTICS SETTING 1. Set DIP switch 1 to ON. 2. While holding down the Receipt FEED switch, turn the power on. 3. "Diagnostics Form" is printed out . →Percial Cut → “Printer Config Menu” is printed out . Ex: Set Communication Interface (Baud Rate: 9600 → 115200) 4. 3 times Short Click. →Long Click. 5. 1 time Short Click. 6. 1 time Short Click. 7. 1 time Short Click.

6.1 DIAGNOSTICS SETTING 6-2 8. 1 time Short Click. 9. 1 time Short Click. 10. 1 time Short Click. 11. 1 time Short Click. 12. 1 time Short Click. 13. 1 time Short Click. 14. 1 time Short Click. 15. Long Click. 16. Set DIP switch 1 to OFF. 17. Printer Power Off.

6.2 DIAGNOSTICS FORM DESCRIPTION 6-3 6.2 DIAGNOSTICS FORM DESCRIPTION 6.2.1 Permanent Tallies Item Description Receipt Lines Front Number of the printing of the paper surface Receipt Lines Back Number of the printing of the paper back side Knife Cuts Number of the total cuts Hours On Total electricity time Flash Cycles Number of the renewal of Firmwere Knife Jams Number of the total jam Cover Openings Number of the Cover Open by Printing Operation Max Temp Reached Print Head Max. Temperature value

6.3 DIAGNOSTICS MENU 6-4 6.3 DIAGNOSTICS MENU ( * :Default Setting) RS232/ USB* RS232 Interface Type USB 115200 57600 38400 19200 Parameters Baud Rate 9600* 8* Data Bits 7 1* Stop Bits 2 None* Even Parity Odd XON/ XOFF Flow Control Method DTR/DSR* Ignore Errors Reception Errors Option Print ‘?’* 4K Bytes* Receive Buffer Size One Line Vender Specific Class* Communication Interface USB Type Printer class OFF, Normal Mode* Data Scope Mode Diagnostic Mode Receipt Test Mode INVALID / Size1* INVALID / Size2 DBCS/ Font Size VALID / Size1 VALID* Print Mode ANK to DBCS INVALID 7.52 LPI* Default Line Per Inch 6 LPI Ignore CR* Carriage Return Usage Use CR as Print Cmd Enable Receipt Synchronization Disabled* 9 Columns* Emulation/ Software PDF417 Max Columns Print 14 Columns 100% 110%* Hardware Print Density 120%

6.3 DIAGNOSTICS MENU 6-5 55W Power Supply* Max Power 75W Power Supply Enabled* Paper Low Sensor Option Disable 80mm* Paper Width 58mm Enabled Knife * Knife Option Disable Knife Monochrome* Hardware Color Paper Option Color Paper Code Page 437* Code Page 850 Code Page 852 Code Page 857 Default Code Page More Code Page (Resident Code Pages) (437,850,852,857,858,860,863,865,866 ,1252,+949) Single Side* Double Side w/Single Cmd Double Side w/Double Cmd Thermal Print Mode Double Side w/Predfn Back F:Normal; B:Normal* F:Up Down; B:Normal F:Normal; B: Up Down Upside Down Front Side Back Side F: Up Down; B: Up Down Disabled* Swap Front & Back Side Enable Top:Disabled, Btm: Disabled* Top:Disabled, Btm: Enable Top: Enable, Btm: Disabled Top/ Bottom Msg Btm of Front Top of Back Top: Enable, Btm: Enable Disabled* Reprint Msg Enable Disabled* 5 inch 10 inch Min Rceipt Length 15 inch Resume Print from Error* Reprint Error Page Print Error Page (Top/ Btm Msg Defined) (No) (Reprint Msg Defined) (No) (Pre Dfn Back Defined) (No) Double Side Mode (TRAT-A15 only) (Logo(s) defined) (No)

6.4 DIAGNOSTICS FORM 6-6 6.4 DIAGNOSTICS FORM

7-1 7. TROUBLESHOOTING This chapter provides tables to help in determining the cause of printer malfunctions. 7.1 TROUBLESHOOTING PROCEDURE When trouble occurs, confirm it’s phenomenon, locate a defective part in accordance with Section 6.2 of the Troubleshooting Guide, and troubleshoot as described below. • Phenomenon: Find the corresponding phenomenon from this column. If there are Multiple phenomena, take all the corresponding items into consideration. This may indicate a hidden faulty part. • Cause: Listing the probable causes as many as possible. Guess the cause Of the problem out of them and take check method to find the cause. • Check Method: Describing the check methods to specify the cause of the problem. • Solution: Follow the solution described in this column. Following the above-mentioned procedure allows for more efficient troubleshooting with fewer errors in judgment. 7.2 TROUBLESHOOTING GUIDE Power Supply Failure Phenomenon Cause Check method Solution The AC adapter is not connected. ----- Connect the specified AC adapter. No power is supplied. (Power lamp does not light.) The fuse has blown. Check whether any unspecified AC adapter is used. Use the specified AC adapter, and replace the Main PCB. Printing Failure Phenomenon Cause Check method Solution No Printing Faulty connection of the print head connector. Check the connection of the print head connector. Connect the print head connector properly. Or replace the Main PCB and/or Print Block. Void Printing (Paper comes out, but no characters are printed on the paper) Faulty connection of the print head connector. Check the connection of the print head connector. Connect the print head connector properly. Or replace the Main PCB and/or Print Block. Foreign object is attached to the print head. Check whether any foreign objects are attached to the print head. Clean print head with cotton swab or soft cloth slightly moistened with ethyl alcohol. Blurred or uneven print Faulty print head. ----- Replace the Print Block.

7-2 Printing Failure Phenomenon Cause Check method Solution Faulty connection of the motor connector. Check connection of the motor connector. Connect the connector correctly. Faulty Main PCB ----- Replace the Main PCB. Paper feed failure Check whether or not the paper is jammed or torn and caught in the paper path. Remove jammed paper from the paper path and set the paper properly. Foreign object in gear Remove the gear holder and check for any foreign objects caught in the gears. Remove the foreign objects. Paper is not fed or is fed irregularly Broken gear Remove the gear holder and check for any breakage of the gears. Replace the Print Block.

7-3 Sensor Failure Phenomenon Cause Check method Solution Faulty paper sensor Check whether the ERROR lamp blinks when the paper is out. Replace the Print Block. Foreign object is attached to the paper sensor. Check whether any foreign substances are attached to the paper sensor. Remove the foreign objects. Paper is not detected. Faulty connection of the paper sensor connector Check the connection of the paper sensor connector. Connect the connector correctly. Foreign object is attached to the Paper Low Sensor. Check whether any foreign objects are attached to the Paper Low sensor. Remove the foreign objects. Paper near end is not detected. Faulty connection of the Paper Low Sensor connector. Check the connection of the Paper Low Sensor connector. Connect the connector correctly. Faulty cutter Phenomenon Cause Check method Solution The cutter does not function. Faulty connection of the Cutter Home Sensor. Check the Connection of the Cutter Home Sensor’s connector Connect the connector correctly. Paper feed failure (Paper jam) Check whether or not the paper is jammed or torn and caught in the paper path. Remove the jammed paper from the paper path and set the paper properly. If no paper condition is not detected when the receipt paper is used up, the printer will continue to print without paper, causing damage to the print head or other problems.

EO18-13005 8.1 PERIODIC MAINTENANCE PROCEDURE 8-1 8. PERIODIC MAINTENANCE To retain the quality and performance of this machine and to prevent unexpected troubles, the following maintenance should be performed periodically. 8.1 PERIODIC MAINTENANCE PROCEDURE Be sure to perform the following cleaning and checks every six months. No. Check item Procedure/check point Required tool 1 Appearance check Visually check the outside of the unit for any deformation, cracks, clearance, or bend. ----- 2 Cleaning the covers Wipe the covers with a soft dry cloth or soft cloth slightly moistened with mild detergent. After using detergent for cleaning, be sure to wipe it off with a moistened cloth. Soft dry cloth or soft cloth slightly moistened with mild detergent 3 Cleaning the print head Clean the print head with a cotton swab slightly moistened with alcohol. Cotton swab slightly moistened with alcohol. 4 Cleaning the cutter and sensors Remove any dust and paper particles from the cutter, and from the sensors with an air blower or a brush. • Air blower • Brush 5 Cleaning the inside of the printer Remove any dust or paper particles from the inside of the printer with an air blower or a brush. • Air blower • Brush 6 Platen check Check if the platen is stained or damaged. ----- 7 Print check Perform a print quality test with the self test print. Refer to Page 5-1

EO18-13005 (Revision Date: Jun. 05, 2008) 9.1 PROCEDURE 9-1 9. FIRMWERE UPDATE PROCEDURE 9.1 PROCEDURE 1) Turn off the power of the printer and PC and connect them using any of the USB, serial, or parallel cables. 2) Download the new firmware and CG file, “GENT Global FW xST.zip” or “GENT xST China FW .zip”, and the installer, “Teris Gent Flash Utility Vx.xx.zip” to the hard disk drive. 3) Decompress the “GENT Global FW xST.zip”or “GENT xST China FW .zip” file, and the following files appear. TRST-A10-STD/Korea “GENT Global FW 1ST.zip” GENT_DBCS(Korean_FONT)_949_VxxxxRxx.sfn GENT_SBCS(ANK_FONT)_CGxxxxRxx.sfn GENTSinglexxxxRxx.mfw GentSingleIPLxxxxRxx.IPL TRST-A15-STD/Korea “GENT Global FW 2ST.zip” GENT_DBCS(Korean_FONT)_949_VxxxxRxx.sfn GENT_SBCS(ANK_FONT)_CGxxxxRxx.sfn GENTDual_VxxxxRxx.mfw GentDualIPLxxxxRxx.IPL TRST-A10-CN “GENT 1ST China FW .zip” 54936_VxxxxRxx.dfn GENTSinglexxxxRxx.mfw GentSingleChinaIPLxxxxRxx.IPL 4) Decompress the “Teris Gent Flash Utility Vx.xx.zip” file. Double-click on the “Teris Gent Flash Utility .exe”, and the “Teris Gent Flash Utility Vx.xx” window appears. 5) Continue Step 9.2, 9.3, and 9.4. Applicable Model: TRST-A10-xx-QM-R Applicable Model: TRST-A15-xx-QM-R Applicable Model: TRST-A10-xx-CN-R TRST-A15-xx-CN -R

EO18-13005 (Revision Date: Jun. 05, 2008) 9.2 MAIN FIRMWERE DOWNLOAD PROCEDURE 9-2 9.2 MAIN FIRMWERE DOWNLOAD PROCEDURE 1) Select a printer model under “Printer Models”. After selecting the printer model, either ”TRST-Axx” , ”TRST-Axx-CN” or ”TRST-Axx-KR”, press the ”Select Model” button. 2) Make the Properties settings. Download Type: Select ”MAIN FIRMWARE”. COM Port: 1. Select “USB” when using a USB cable. (The Baud rate, Parity Bit, Stop Bit, Data Bit, and Data Flow settings are not required.) 2. Select a COM port number which is assigned to the RS232C on the PC when using a RS232C cable. The Baud rate, Parity Bit, Stop Bit, Data Bit, and Data Flow settings are the same as those of the printer configuration settings. 3. Select “LPT1” when using a parallel cable. (The Baud rate, Parity Bit, Stop Bit, Data Bit, and Data Flow settings are not required.) 3) Click on the “Browse” button and select a main firmware file, “GENTSingle/Dual xxxxRxx.mfw” or “GENTSinglexxxxRxx.mfw ” downloaded from the INFONET Web. 4) Click on the “Flash Now” button, and download starts. Do not turn off the printer power until the download finishes. GENTSinglexxxxRxx.mfw

EO18-13005 (Revision Date: Jun. 05, 2008) 9.3 ANK/CG DOWNLOAD PROCEDURE 9-3 9.3 ANK/CG DOWNLOAD PROCEDURE 1) Make the Properties setting. Download Type: Select ”ANK FONT”. 2) Click on the “Browse” button and select a CG file, “GENT_SBCS_CGxxxxRxx.sfn” downloaded from the INFONET Web. 3) Click on the “Flash Now” button, and download starts. Do not turn off the printer power until the download finishes. GENT_SBCS_CGxxxxRxx.s

EO18-13005 (Revision Date: Jun. 05, 2008) 9.4 IPL FIRMWERE DOWNLOAD PROCEDURE 9-4 9.4 IPL FIRMWERE DOWNLOAD PROCEDURE 1) Make the Properties setting. Download Type: Select ”IPL FIRMWERE”. 2) Click on the “Browse” button and select a CG file, “GENTxxxxIPLxxxxRxx.IPL” downloaded from the INFONET Web. 3) Click on the “Flash Now” button, and download starts. Do not turn off the printer power until the download finishes. 9.5 CONFIRMATION OF SETTING 1) After downloading the main firmware and ANK CG, the font size setting is added in the diagnostic print. Please check the settings are as described below: Font Size: Size 1 Default LPI: 7.52 Carriage Return: Ignore Receipt Sync.: Disabled PDF417 Max Column:9 Columns GENTSingleIPLxxxxRxx.IPL