Lexmark X644e User Guide

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Memory
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Disabling Job Buffering
When you disable job buffering, it takes effect immediately on the port you disabled. 
A POR is automatically performed when job buffering is disabled for any port from the 
printer operator panel or through MarkVision Professional, so the unused memory 
resources can be reallocated. When buffering is disabled on a port, any jobs on the 
disk are printed before normal processing of incoming jobs continues.
To delete or resize a job buffer partition, first delete or print all jobs. Then, disable job 
buffering on all ports. Finally, delete or resize the job buffer partition.
Recovering from a Power Loss
If the printer loses power, the job being spooled to the disk may be lost. Jobs already 
stored on the disk remain intact. When power is restored, you are asked if you want 
to print the jobs held in the buffer. See your printer documentation for information on 
how to cancel the jobs or print the jobs held in the buffer.
Jobs that were partially printed during the loss of power are printed again in their 
entirety when power is restored.