2001/10/02
CHAPTER 2 "PCL" - 82
If the control bit is 0, replacement data is not repeated data. Bits 6 to 3 contain the offset count. This field
value is from 0 to 15. If this value is 15, the next byte of the control bytes is an optional offset count. The
value of this optional offset count byte is from 0 to 255. If this optional offset count value is 255, then the
next byte is another (second) optional offset count byte. Optional offset count bytes will continue until the
value is less than 255. The total Offset value is the sum of the offset count in the control byte and all the
optional offset bytes.
Bits 2 to 0 of the control byte contains the replacement count - 1. The value is from 0 to 7. If this value is 7,
optional replacement byte(s) follow the control byte or optional offset byte(s) (if any).
If the first optional replacement count byte is 255, then a second optional count byte follows the first optional
count byte. Optional offset count bytes will continue until the value becomes less than 255. The addition of
the replacement count in the control byte and all optional replacement count bytes gives the total replacement
count.
Replacement data bytes follow the control byte and any optional offset bytes and any optional replacement
count bytes.
<Example>
Seed row
55 55 55 55 55 55 55 55 55 55 55 55 55
Current row
55 55 55 55 55 11 11 22 33 44 55 66 77
<Different section 11 11 22 33 44 55 66 77>
Offset count = 5
Replacement count = 8
Replacement data = 11 11 22 33 44 55 66 77
0
0
1
0
1
1
1
1
7
6
5
4
3
2
1
0
Replacement count = 7 + 1 = 8
Offset count = 5
Optional offset count byte = 0
8 bytes of repracement data
11 11 22 33 44 55 66 77
7
6
5
4
3
2
1
0
Offset count
Replacement count
Control bit
1
Command byte for mode 9 compression (repeated replacement data)
If the control bit is 1, replacement data is repeated data. Bits 6 to 5 contain the offset count and bits 4 to 0
contain the 'replacement count (repeat count) - 2'.
If bit 6 and bit 5 are '1', then an optional offset byte follows the control byte. If the value of this optional offset
byte is 255, another (second) optional offset byte follows the first optional offset byte. The addition of the
offset count in the control byte and any optional offset bytes gives the total offset count.
If bits 4 to 0 are all '1', an optional replacement count byte follows the control byte or any optional offset
byte(s). If the first optional replacement count byte has a value of 255, a second optional replacement count
byte follows the first optional replacement count byte. Optional replacement count bytes will continue until
the value becomes less than 255.
<Example>
Seed row
55 55 55 55 55 55 55 55 55 55 55 55 55
Current row
55 55 55 11 11 11 55 55 66 66 66 66 55
<First section 11 11 11>
Offset count = 3
Replacement count = 3
Replacement data = 11
Summary of Contents for HL-1250
Page 15: ...2001 10 02 CHAPTER 1 INTRODUCTION 1 CHAPTER 1 INTRODUCTION ...
Page 20: ...2001 10 02 CHAPTER 1 INTRODUCTION 6 ...
Page 21: ...2001 10 02 CHAPTER 2 PCL 1 CHAPTER 2 PCL PRINTER CONTROL LANGUAGE ...
Page 59: ...2001 10 02 CHAPTER 2 PCL 39 ...
Page 76: ...2001 10 02 CHAPTER 2 PCL 56 ...
Page 104: ...2001 10 02 CHAPTER 2 PCL 84 71 71 Lines picture Same as above ...
Page 109: ...2001 10 02 CHAPTER 2 PCL 89 ...
Page 123: ...2001 10 02 CHAPTER 2 PCL 103 ...
Page 131: ...2001 10 02 CHAPTER 3 PCL5C 1 CHAPTER 3 PCL5C ...
Page 149: ...2001 10 02 CHAPTER 4 HP GL 2 1 CHAPTER 4 HP GL 2 GRAPHICS LANGUAGE ...
Page 199: ...2001 10 02 CHAPTER 4 HP GL 2 51 ...
Page 204: ...2001 10 02 CHAPTER 4 HP GL 2 56 ...
Page 205: ...2001 10 02 CHAPTER 5 PJL 1 CHAPTER 5 PJL PRINTER JOB LANGUAGE ...
Page 248: ...2001 10 02 CHAPTER 5 PJL 44 ...
Page 263: ...2001 10 02 CHAPTER 5 PJL 59 ...
Page 264: ...2001 10 02 CHAPTER 6 EPSON 1 CHAPTER 6 EPSON FX 850 ...
Page 286: ...2001 10 02 CHAPTER 6 EPSON 23 LPRINT CHR 27 CHR 37 CHR 1 CHR 0 Select downloaded characters ...
Page 290: ...2001 10 02 CHAPTER 6 EPSON 27 Sample 12 ...
Page 292: ...2001 10 02 CHAPTER 6 EPSON 29 Sample 14 ...
Page 294: ...2001 10 02 CHAPTER 7 IBM PROPRINTER 1 CHAPTER 7 IBM PROPRINTER XL ...
Page 315: ...2001 10 02 CHAPTER 7 IBM PROPRINTER 22 ...
Page 316: ...2001 10 02 CHAPTER 8 BAR CODE CONTROL 1 CHAPTER 8 BAR CODE CONTROL ...
Page 326: ...2001 10 02 CHAPTER 9 HP GL 1 CHAPTER 9 HP GL GRAPHICS LANGUAGE ...
Page 353: ...10 5 2001 APPENDIX A COMPARISON LIST 1 APPENDIX A COMPARISON LIST ...
Page 391: ...10 5 2001 APPENDIX A COMPARISON LIST 39 AUTOSKIP ON OFF ON OFF ON OFF ON OFF ...