2001/10/02
CHAPTER 2 "PCL" - 107
8.5.17. Font cache
In order to print characters from a scalable font, the printer changes the scalable character outlines into sized
bitmaps. These bitmapped characters are produced on a character-by-character basis and the produced
bitmapped characters are stored in memory. As it prints more pages using more fonts, more memory is consumed
by the bitmaps. The bitmap characters used on the first page of a job can stay in memory till the end of a job.
These stored bitmap characters are known as the font cache.
If a Brother HL-Series printer encounters a memory low condition, all of the font cache is automatically deleted.
Also, font cache and temporary entities can be cleared by a Printer Reset command.
8.5.18. Memory status response
The total available memory is specified by "TOTAL=" and the largest continuous block size of available memory
is specified by "LARGEST=".
PCL
INFO MEMORY
TOTAL = 10000
LARGEST = 3500
8.5.19. Memory error response
When the value field of the free memory command is out of range, the response for this command would be as
follows;
PCL
INFO MEMORY
ERROR = INVALID UNIT
8.5.20. Flush all pages command
ESC&r#F
(27)(38)(114)#(70)
<1Bh><26h><72h>#<46h>
This command suspends accepting data from a PC and clears the user memory.
•
#=0 suspends receiving data and clears all completed data. Incompleted data remains in the printers memory.
•
#=1 suspends receiving data and clears all data remaining in the printer memory.
8.5.21. Echo command
ESC*s#X
(27)(42)(115)#(88)
<1Bh><2Ah><73h>#<58h>
This command is used to distinguish each request and response. In networking/sharing environments, some
requests may be sent from a number of PCs to one printer. This command sends the user selected value to the
printer and the printer can return the same value. Adding this command before the status request command
allows this echo value to distinguish the corresponding status response.
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 ...