Xerox NPS User Manual

Printer components and options

3-15

System Overview Guide

7. Sheet path

8. Finishing device left edge

The printer automatically detects the presence of the bypass 
transport and third-party finishing devices when it is powered up. 
The system also begins monitoring the interlocks (physical links) 
between the bypass transport and the finishing device. It then 
starts interface communications.

After a sheet of paper passes through the bypass transport to 
the external finishing device, the printer loses all record of it. 
Communications between the printer with bypass transport and 
the finishing device consist of command and status signals.

 NPS/IPS can send three command signals to third-party 
finishing devices:

•

Cycle up:  The printer is powered up and signals the finishing 
device to power up

•

Sheet exit:  A sheet of paper has entered the finishing device

•

End of set:  The last sheet of a print job set has been sent

The third-party finishing device can send five status signals to 
the NPS/IPS:

•

Sheet delivered:  A sheet of paper has been successfully 
delivered to the finishing device.

•

Set delivered:  A print job set has been successfully 
delivered to the finishing device.

•

Offline:  The finishing device has no power or is not 
connected to the NPS/IPS.

•

Full:  The finishing device is full and cannot accept more 
sheets.

•

Faulted:  The finishing device is jammed or faulted and is not 
ready to accept sheets of paper