Specifications

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As the font cache memory fills, the printer makes room for new bitmapped characters
by erasing those that have been in the cache longest without being used. By increas-
ing the memory allocated to this client, the printer can store more characters and
spend less time erasing and replacing characters in the cache. You should be careful
when increasing the memory allocated to this client because the printer may spend
more time searching the cache than it would scaling the character. This client has a
limit to the maximum point size it will store.
Normally, you don’t need to change this memory allocated to this client unless you use
a large number of fonts at various point sizes. If you do, you may allocate additional
memory to this client to improve printer performance.
There’s no specific formula to use in figuring the amount of memory required by the
font cache, but after a certain point, large font caches cause the printer to take longer
to print than smaller font caches because of the search time through the cache. The
recommended font cache size is in the following ranges:
 128-256 KB for 300x300 dpi printing
 256-512 KB for 600x600 dpi printing
 384-512 KB for 1200x600 dpi and 1200x1200 dpi printing
You should experiment to see what font cache size works best for you.
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Also known as K Mem PSHeap, Heap, PostScript VM, and Virtual Memory, this client
holds downloaded fonts, PostScript operators, and forms.
Inefficiently coded PostScript jobs can consume an extremely large amount of virtual
memory or leave objects in the PostScript heap after the print jobs are completed,
leading to virtual memory errors. If enough memory is not allocated to the PS heap,
the job cannot print.
Increasing the memory allocated to this client allows more complex jobs to print and
increases the number of fonts that can be downloaded to virtual memory. However,
this client should be increased only if you receive a virtual memory error when
attempting to print a job or download a font, and even then it should be increased only
in small increments until the error message goes away. Excess memory in the PS
heap is not used.
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