HP 4 FAMILY User Manual
Page 132
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count. If the replacement count byte is 255, another
replacement count byte follows. The last replacement count
byte is indicated by a value less than 255. One more than
the total replacement byte count will be replaced.
CONTROL BIT = 1
7
6 5
4 0
Control Bit = 1
Offset Count
Replacement Count
If the control bit is 1, the replacement data is run length
encoded. the bit boundaries are different than if the control
bit is 0: bits 5-6 contain the offset count, and bits 0-4
contain the replacement count. As when the control bit is 0,
optional offset bytes and replacement bytes may be added.
2-96 Printer-Specific Differences
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