NCR 7193 Owner's Manual

7193 Owner’s Guide August 1998 62 Top of Bit Image 24-Dot Single-Density Mode dn MSB LSB d1 d2 d3 d4 d7 d5 d6 dn Single-Density Graphics Enters one line of 8-dot single-density graphics into the print buffer. Any print command is required to print the line, after which the printer returns to normal processing mode. When the print buffer is full, incoming data will be accepted but not printed. Single-density mode allows 0-224 dot columns. The number of bytes sent is represented by the formulas in the second table. Each bit corresponds to two horizontal dots. Compar ...

7193 Owner’s Guide August 1998 56 Set Printing Area Width Sets the width of the printing area. The command is effective only at the beginning of a line. Hexadecimal Decimal ASCII Value of nL Value of nH 1D 57 nL nH 29 87 nL nH GS W nL nH 0-255 0-255 The width of the printing area is set to (((nH X 256) + nL) X horizontal motion unit) inches. The horizontal motion units are set by the Set Horizontal and Vertical Minimum Motion Units command (1D 50). This command is described above. The width of the printing area follows the Set Left Margin command (1D 4C). See above for a ...

Chapter 5: Communication August 1998 39 Parallel Interface Parallel Protocol The 7193 uses a standard PC-compatible parallel interface. The illustration shows the timing diagram for the interface protocol. BU SY ACK D A TA STROBE 0 .5 µ s (Min .) 1 .0 µ s (Min .) 0 .5 µ s (Min .) 0 .0 8 µ s (Min .) See N o. 1 A pp. 0.06 µs 1. ACK/ will not go high until STROBE/ goes high. 2. When the printer is not ready to receive more data, ACK/ will be sent, but BUSY will remain high. 3. When the power is turned on or the printer is reset, an ACK/ will be sent during ...

7193 Owner’s Guide August 1998 74 1. Record the current switch settings for their RS-232C parameters. 2. Set switches 2, 3, and 6 to OFF, and set switches 1, 4, and 5 to ON. 3. Power cycle the printer. 4. Wait until the printer beeps to store the parameter change in NVRAM. 5. Restore the switches to their RS-232C parameters. 6. Power cycle the printer. 7. Print out the diagnostics to be sure that the busy line parameter changed. Real Time Status Transmission Transmits the selected one byte printer status specified by n in Real Time according to the following parameters. G ...