HP qms 1660 Manuale Utente

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Memory
5-19
Additional Technical Information
You should experiment to see what font cache size works best for 
you.
PS Heap
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 not 
enough memory is 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 down-
loaded 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.
Emulation
Also known as K Mem Emulation, this client is used to store any 
optional or loadable emulations, such as LN03 Plus or QUIC II. 
Increasing this client’s memory allows you to load more than one 
optional emulation so that it doesn’t have to be reloaded every time 
the print job is sent.
If an emulation is loaded to process a print job and there is not 
enough memory in the emulation client, another emulation already 
loaded may be unloaded automatically to obtain enough memory. If 
you notice a delay in printing between jobs that have different non-
resident emulations, it’s possible that the emulations are having to 
reload each time they’re run. Adding to the emulation client may elim-
inate the unloading and reloading of these emulations and, conse-
quently, increase throughput.
Also increase the emulation client if you’re printing complex non-
PostScript jobs that may require more memory to process correctly.