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No Operation (NOP)<br />
Byte Position Bytes Field Name Description<br />
Chapter 4. Record Formats<br />
No Operation (NOP)<br />
The NOP record indicates that the remainder of the record, which can be<br />
any length, is to be ignored by the printing system. Using the control code<br />
for the NOP record allows existing records to remain in the file but not be<br />
used.<br />
The NOP record can be used during font definitions, fixed file definitions,<br />
or within variable data records. If an NOP record is found while loading<br />
fixed files, the record is loaded into fixed file memory.<br />
1-2 2 Record Length The length of this record, in binary, including the record length<br />
field. For example, hex 00 04 specifies a record length of 4 bytes.<br />
3 1 Cyclic Record Count A binary cyclic record count using modulo 256. Each record in the<br />
job is counted, starting with hex 01 for the first record. The 255th<br />
record is hex FF and the 256th record is hex 00. This count is used<br />
to verify record sequence.<br />
4 1 Control Code A binary code that identifies the record type. A value of hex 22<br />
identifies the NOP record.<br />
Reference Guide 4 - 61
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