QMS 860, User Manual, Page: 343 / 398

Disk Cache
This memory client stores frequently used data in system memory
instead of continually storing and retrieving it from a hard disk. If
a hard disk is used and a lot of disk access is required, adding
memory to the disk cache may increase the printer’s performance.
For example, if many fonts are stored on disk, faster access to these
fonts is achieved by increasing the disk cache size. Conversely, if
no hard disk is used, the disk cache should be set to zero until a
hard disk is installed.
MB Printer Mem
On your printer, this field shows the number of megabytes of RAM
that is available to be split among the various memory clients when
disk swapping is turned off.
System Memory
Also known as System Use, this non-configurable client is the
amount of RAM that is used to run the printer’s operating system.
It is never increased or decreased. The system memory subtracted
from the total amount of RAM identifies the amount of RAM
available for all the other memory clients.
Hard Disk Management
You can add up to seven external hard disks to your printer. These
hard disks serve as secondary storage places for such items as
downloaded fonts, emulations, and spooled data. External hard
disks also increase the number of pages that can be collated before
chunk collation begins.
Appendix F
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 F - 1 5