46 User’s Guide
Print Suppress Mode
This feature temporarily disconnects the printer from the computer by
sending a control code. An ESC Q SYN code tells the printer to ignore all
data except the DC1 code. A DC1 code releases the printer from the print
suppress mode.
The PRINT SUPPRESS option in the printer’s menu must be set to YES
in order for the print suppress commands to be active. If this option is set
to NO, these commands will be ignored by the printer.
Print Continuously
For programmers who would like to see what control codes were entered
in a document, the following commands specify the printing of one or all
normally non-printable characters below decimal 31 and between decimal
128 - 159 in IBM Set 1.
To print just one control character, use the ESC ^ Command followed by
the control character you want to print.
To print more than one control character, the number of characters for
printing has to be indicated. Less than 256 characters, then n1 is the
number of characters and n2 is 0. For more than 255 characters, follow the
ESC \ command with the total of the following formula:
n2 = int (Total number of characters/256)
n1 = Total number of characters - (n2 * 256)
When the ESC \ command is sent, the control codes do not operate but are
printed as special characters which appear in the chart in Appendix B. For
example, the ESC command prints as a left arrow. If the printer receives a
code value for an unassigned character, a space is printed.
The All Character Set is to be found in Appendix B.
Print Suppress Mode Decimal Hex. ASCII Comp.
Print suppress mode on 27 81 22 1B 51 16 ESC Q SYN P
Print suppress mode off 17 11 DC1 P
Printing from All Char. Set Decimal Hex. ASCII Comp.
Print one character from All Character Set 27 94 n 1B 5E n ESC ^ n P
n = character to be printed
Print continuously from All Character Set 27 92 n1 n2 1B 5C n1 n2 ESC \ n1 n2 P
followed by character to be printed
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