Raster Graphics
Adaptive
Compression
(Method 5)
Raster Graphics Adaptive Compression (Set Compression
Method Command, mode 5) is implemented on the HP
LaserJet IIIP, Color LaserJet, all LaserJet 4, 5, and 6
family printers, and the DeskJet 1200C and 1600C printers.
This compression method allows the host to compress data
using a combination of PCL compression modes to obtain
optimum compression (refer to the PCL 5 Printer Language
Technical Reference manual, Set Compression Method
Command, for details).
An added benefit of this method for the HP LaserJet 4L and
LaserJet IIIP printers is that the data is not decompressed
upon entry to the printer provided the image is portrait,
300 dpi, transparent print model and no patterns are being
used. This allows the LaserJet 4L and IIIP to print many
pages which would otherwise require more memory. As an
added benefit these pages print faster. The other HP
LaserJet 4, 5, and 6 family printers decompress the data
upon entry to the printer and rely upon ADC or MEt to
compress the data if required.
For the HP LaserJet 4L printer it is critical that the image
actually compress (not expand) if Adaptive Compression is
used since MEt does not operate upon images meeting the
requirements for delayed decompression.
Memory Usage 5-7
Summary of Contents for PCL 5
Page 8: ...Contents 4 ...
Page 174: ...5 8 Memory Usage ...
Page 198: ...A 24 Printer Commands ...
Page 201: ...8U Roman 8 R8 7J DeskTop DT Internal Symbol Set Charts B 3 ...
Page 202: ...0N ISO 8859 1 Latin 1 E1 19U Windows 3 1 Latin 1 W1 B 4 Internal Symbol Set Charts ...
Page 203: ...12U PC 850 Multilingual PM 10U PC 8 Code Page 437 PC Internal Symbol Set Charts B 5 ...
Page 204: ...12J MC Text MC 10J PS Text TS B 6 Internal Symbol Set Charts ...
Page 205: ...11U PC 8 Danish Norwegian PD 13J Ventura International VI Internal Symbol Set Charts B 7 ...
Page 206: ...1U Legal LG 14J Ventura US VU B 8 Internal Symbol Set Charts ...
Page 207: ...6J Microsoft Publishing PG 9U Windows 3 0 Latin 1 WO Internal Symbol Set Charts B 9 ...
Page 208: ...17U PC 852 Latin 2 PE 9T PC Turkish PT B 10 Internal Symbol Set Charts ...
Page 209: ...9E Windows 3 1 Latin 2 WE 2N ISO 8859 2 Latin 2 E2 Internal Symbol Set Charts B 11 ...
Page 210: ...5N ISO 8859 9 Latin 5 E5 5T Windows 3 1 Latin WT B 12 Internal Symbol Set Charts ...
Page 211: ...9J PC 1004 Code Page 1004 PU 26U PC 775 Code Page 775 PV Internal Symbol Set Charts B 13 ...
Page 212: ...19L Windows Baltic WL 6N ISO 8859 10 Latin 6 E6 B 14 Internal Symbol Set Charts ...
Page 213: ...6M Ventura Math VM 8M Math 8 M8 Internal Symbol Set Charts B 15 ...
Page 214: ...5M PS Math MS 15U Pi Font PI B 16 Internal Symbol Set Charts ...
Page 215: ...19M Symbol Font AS 579L Wingdings Font L Internal Symbol Set Charts B 17 ...
Page 216: ...9L Ventura ITC Zapf Dingbats DV 10L PS ITC Zapf Dingbats DS B 18 Internal Symbol Set Charts ...
Page 218: ...13L ITC Zapf Dingbats series 300 D3 B 20 Internal Symbol Set Charts ...
Page 221: ...Table B 2 Roman 8 Character Conversion Internal Symbol Set Charts B 23 ...
Page 222: ...Table B 2 Roman 8 Character Conversion continued B 24 Internal Symbol Set Charts ...
Page 223: ...Table B 2 Roman 8 Character Conversion continued Internal Symbol Set Charts B 25 ...
Page 224: ...Table B 2 Roman 8 Character Conversion continued B 26 Internal Symbol Set Charts ...
Page 225: ...Table B 2 Roman 8 Character Conversion continued Internal Symbol Set Charts B 27 ...
Page 226: ...Table B 2 Roman 8 Character Conversion continued B 28 Internal Symbol Set Charts ...
Page 227: ...Table B 2 Roman 8 Character Conversion continued Internal Symbol Set Charts B 29 ...
Page 228: ...B 30 Internal Symbol Set Charts ...