If you wish to clear a print job is sent in error, you must send the clear buffer sequence which consists of the Printer Select Code followed by CLR. This command will only affect print jobs originated by your computer. Print jobs in the buffer from other computers are not affected. The clear buffer sequence will clear the most recent print job sent to Print Master from your computer. This command will not clear a printer's buffer of data already passed to the printer from Print Master.
The clear buffer sequence is operable in either Printer Select Mode 1 or Mode 2. In Printer Select Mode 1, however, since Print Master is transparent after the first 16 characters are received, the computer must wait for the input inactivity timeout to occur before sending the clear buffer command. The clear buffer sequence may be sent by creating a clear buffer file or program (see Section 6.2.8).
NOTE: In Print Select Mode 1, the Model 706A and 708A will recognize the printer select code only if the very first characters of the print job contain the printer select code.
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Print Master scans for a minimum size print job of three (3) characters. If more than 3 characters are received within the designated input inactivity timeout interval, the unit will treat these characters as a print job. If less than 3 characters are received, these characters will be discarded.
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