Specifications

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Also known as Host Input and K Mem for Spool, this memory client stores incoming
data from all the interfaces until the emulation can process the print job. When enough
memory is allocated to this client, the host becomes free more quickly, and the num-
ber of jobs that the printer can accept simultaneously is increased. You should con-
sider the amount of data being sent simultaneously when allocating memory to the
spool buffer. If available, a hard disk can supplement this client with additional mem-
ory needed for spooling. See the “Hard Disk Management” section later in this chap-
ter.
»Note:
While increasing this client is beneficial in reducing network traffic, throughput is
not necessarily increased. In addition, making this client too large could actually
decrease throughput because of the overhead involved with managing a large spool.
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This memory client stores frequently used data in system memory instead of continu-
ally 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 per-
formance.
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
will automatically be set to 0 KB until a hard disk is installed and formatted. However,
when one or more hard disks are installed and formatted, disk cache is automatically
allocated 256 KB. Also, if there is more than 8 MB of memory installed, then 28 KB will
be allocated to the Disk Cache client for any optional font SIMMs.
The disk cache is a high speed temporary buffer for data going to and from the hard
disk. It can speed the printer in two ways:
 Information such as frequently referenced fonts and logos may still be in the
cache and may not have to be pulled off a hard disk each time they’re needed.
 Information being written to a hard disk can be held in the cache temporarily until
a more convenient time to be written to disk.
The amount of memory needed for the disk cache client is dependent on the size of
the disk, the number of disks, the number of subdirectories on each disk, and the
amount of memory dedicated to caching. As long as the disk cache is enabled and
there is enough memory in the disk cache, all disks are accessible. If insufficient
memory is allocated to the disk cache, some disks may be seen while others are not.
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