Printronix P7002H, Руководство пользователя

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76
Chapter 4
HOST INTERFACE
Trickle Time
When the printer is printing data from a host and a second job is received by
the printer from a different host, Trickle Time prevents the second host from
timing out while it is waiting for its data to be printed. In order to support this
feature, the port has to be able to accept data from the host and store it for
future use.
For example, if the printer is printing a job from the serial port, and then
receives a second print job from the parallel port, the data from the parallel
port will “trickle” bit by bit into the printer buffer to prevent a timeout error from
being sent back to the host connected to the parallel port.
The selected value is the time that the printer waits before getting the next
byte of data from the host. The Trickle Time value should be less than the
host time out value, but not too much shorter or else the printer fills up its
buffer too fast. This function is not applicable for C/T hotport.
Offline Process
•
Disable (the default). When set to disable, the printer does not process
parallel/network data while offline.
•
Enable. When set to enable, the printer continues to process (but not
print) the current network/parallel job while the printer is offline until the
printer's buffer is full.
Centronics (Parallel) Submenu
Centronics
(from page 72)
Prime
Signal
TOF Action Buffer Size
in K
Enable*
Disable
Reset*
Do Nothing
16*
(1-16)
* = Factory Default
Auto
Trickle
Disable*
Enable
Trickle
Time
1/4 sec*
1/2 sec
1 sec
2 sec
4 sec
8 sec
16 sec
Off
Data Bit 8
Enable*
Disable
PI Ignored
Enable*
Disable
Data
Polarity
Shared*
Inverted
Resp.
Polarity
Standard*
Inverted
Busy On
Strobe
Enable*
Disable
Latch
Data On
Leading*
Trailing