To modify printer timing behavior, edit:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print
In the right hand pane, modify or add value from the following list of parameters:
FastPrintWaitTimeout type REG_DWORD
Range: Milliseconds, Default: 240,000 (4 minutes)
When JobPrintsWhilstSpooling is enabled, the port thread
must synchronize with the spooling application. This
value determines how long the port thread waits before
giving up, pausing the current print job, and moving to
the next print job.
FastPrintThrottleTimeout type REG_DWORD
Range: Milliseconds, Default: 2,000 (2 seconds)
When JobPrintsWhilstSpooling is enabled, some printers
pause if they don't receive data for a timeout period
(usually 15 seconds for a Postscript printer). To
counteract this, the spooler throttles back on data sent
to the printer when FastPrintSlowDownThreshold is
reached. At that point, FastPrintThrottleTimeout causes 1
byte per defined period to be sent to the printer until
the threshold defined by FastPrintSlowDownTheshold is
exceeded.
FastPrintSlowDownThreshold type REG_DWORD
Range: Milliseconds,
Default: FastPrintWaitTimeout divided by FastPrintThrottleTimeout
NetPrinterDecayPeriod type REG_DWORD
Range: Milliseconds, Default: 3,600,000 (1 hour)
Specifies how long to cache a network printer. The cache
is used to present the list of printers to the browser.
PortThreadPriority type REG_DWORD
Default: 0
Allows you to set the priority of the port threads. These
are the threads that send the output to the printers.
Valid values are:
0 (Normal)
1 (Above normal)
0xFFFFFFFF (Below normal)
SchedulerThreadPriority type REG_DWORD
Default: 0
The priority of a thread determines the order in which it
is scheduled to run on the processor. Valid values are:
0 (Normal)
1 (Above normal)
0xFFFFFFFF (Below normal)
SpoolerPriority type REG_DWORD Default:
0
Sets the priority class for the print spooler. Valid
values are:
0 (Normal)
1 (Above normal)
0xFFFFFFFF (Below normal)
