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.
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
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