ADC and MEt Notes
For raster graphics compression to perform at its best it is
recommended that the “Recommendations For Sending
Data to the Printer,” described below, be followed.
Character bitmaps can only be compressed if they can be
stored uncompressed in contiguous printer memory first.
This requirement implies that large point size characters
may require more printer memory than would seem
necessary.
During MEt’s Page Protection, portions of the internal
representation of the page are discarded to make room for
other aspects of the page protection process. If a memory
out condition occurs during this process (unlikely, but
possible) a white band will be seen on the page. The best
way to remedy this situation is to add memory to the
printer.
Recommendations
For Sending Data to
the Printer
The HP PCL 5 printers perform best in terms of speed and
memory utilization if the recommendations made below are
followed. Failure to follow these recommendations will not
harm the printer, but may increase the chances of a
memory out condition or increase the time to print a page.
Ordered Images — Raster Graphic images or pictures
should be sent from top to bottom with the data in one
band (start raster, end raster pair). If one band is not
possible, as few as possible multiple bands may be used
as long as they exactly follow each other and are sent in
top-to-bottom order. Also, multiple bands should be as
large as possible.
Band Sizes — If an image is sent in bands (start raster,
end raster pairs), the bands should be multiples of 32
lines high. This is especially critical for landscape
graphics. If there is no way to send multiples of 32-line
high bands, multiples of four for band height should be
used. This allows Image Adapt to work better.
5-4 Memory Usage
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 ...