Xerox 4500 PS TR 用户手册

The Xerox 4500 PS TR supports IRQ - Intervention Required. When the
intervention required status message is sent, the print session will be
responsible for the recovery action.

To control the printer error conditions, two separate IRQ timers are
available:

-  IRQ timeout

Used to report printer error / fault conditions to the initiating application

-  Hold timeout

Used to report printer hold conditions to the initiating application.

The Xerox 4500 PS TR handles the following intervention status conditions:

• 

Online/Offline - i.e. is the printer Ready?

The IRQ conditions vary, however, depending on the print session. For a
description of the differences, see below.

1)  Intervention conditions that can be reported
     presently will be supported.
2) The HOLD timeout parameter is used to
     determine when hold conditions are reported to
     the host.

1)  The intervention condition is reported to the
      host. The user is required to perform
      intervention recovery (i.e. attend to the printer
      problem). Once the printer is Online,
      printing will restart from the last checkpoint.
2)  The HOLD timeout parameter is used to
      determine when hold conditions are reported
      to the host.

1) There will be no response or notification with
     any intervention condition, i.e. the print data
     remains pending in the printer (printer appears
     busy).
2) The HOLD timeout parameter is used to
     determine when hold conditions are reported to
     the host.