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Appendix D
Frame Buffer
Listed as K Mem Framebuff in the Administration/Memory menu,
the frame buffer memory client holds rasterized (bitmapped)
images of page faces that are ready to be sent to the physical print
engine. Your QMS printer comes configured with enough frame
buffer memory for a single four-color 300 dpi legal-size page or a
single four-color 600 dpi letter-size page in the largest media size
supported.
PostScript Heap
Listed as K Mem for PSHeap in the Administration/Memory menu
and elsewhere as PostScript VM and Virtual Memory, this client
holds downloaded fonts, PostScript operators, and forms.
Inefficiently coded PostScript jobs can consume an infinite amount
of virtual memory or leave objects in the PostScript heap after the
print jobs are completed, leading to virtual memory errors. If not
enough memory is allocated to the PostScript 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. If you receive a virtual memory
error when attempting to print a job or download a font, this client
should be increased in small increments until the error message
goes away.
Spool Buffers
Listed as K Mem for Spool in the Administration/Memory menu
and as Host Input on the status page, this memory client stores
incoming data from all the interfaces until the physical print engine
can print the job. When enough memory is allocated to this client,
A d d i t i o n a l T e c h n i c a l I n f o r m a t i o n
D - 5
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