Xerox 4213 MICR MRP Betriebsanweisung
COAX COMMUNICATIONS BUFFER
Print order processing
This order causes printing of the message buffer while taking into
account: the print mode (PCIA byte X'0017'), the message
starting address (MSA), and the message length (ML) bytes in the
PCIA.
account: the print mode (PCIA byte X'0017'), the message
starting address (MSA), and the message length (ML) bytes in the
PCIA.
The MSA (PCIA bytes X'0012-0013') identifies the position of the
first byte of data in the print buffer. If the MSA value is outside
print buffer limits, the XCTO immediately returns an 'order reject'
and 'order complete' to the host system.
first byte of data in the print buffer. If the MSA value is outside
print buffer limits, the XCTO immediately returns an 'order reject'
and 'order complete' to the host system.
The ML (PCIA bytes X'0014-0015') plus MSA-1 defines the
position of the last byte of data in the buffer. If ML is zero, the
XCTO returns 'order complete' to the host system without an
error condition and without printing anything.
position of the last byte of data in the buffer. If ML is zero, the
XCTO returns 'order complete' to the host system without an
error condition and without printing anything.
In the SCS mode if ML defines a position beyond the end of the
buffer, data wraps from the end of the buffer back to address
(X'0050'), the beginning of the data area.
buffer, data wraps from the end of the buffer back to address
(X'0050'), the beginning of the data area.
In the DSC mode if ML extends beyond the end of the buffer,
printing stops at the end of the buffer. An End of Message (EM)
control code in the buffer overrides the ML, terminating the print
process at that point in the buffer.
printing stops at the end of the buffer. An End of Message (EM)
control code in the buffer overrides the ML, terminating the print
process at that point in the buffer.
When set correctly, the printer processes characters from the
message buffer, starting at the MSA and continuing in a
sequential manner for the length of the message. This processing
prints the printable characters in the buffer, using any commands
also in the buffer to format the printed page as required.
message buffer, starting at the MSA and continuing in a
sequential manner for the length of the message. This processing
prints the printable characters in the buffer, using any commands
also in the buffer to format the printed page as required.
When a print order has been completed, the XCTO loads “order
complete” into PCIA byte X'0000' and posts “printer status
available.”
complete” into PCIA byte X'0000' and posts “printer status
available.”
3270/DSC/DSE print order processing
In 3270/DSC/DSE (DSC) mode, the message buffer contains DSC
codes for printable characters and control functions.
codes for printable characters and control functions.
Following the printing of the last line of data in the buffer, an
automatic new line is performed unless the print position is
already in column one or the XCTO‘s DSC options have been set
to inhibit this action.
automatic new line is performed unless the print position is
already in column one or the XCTO‘s DSC options have been set
to inhibit this action.
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XEROX COAX/TWINAX OPTION (XCTO) PROGRAMMER REFERENCE