Specifications

Troubleshooting Test-Ready Configuration - 6
To reconfigure the sensing system, remove the I/O controller
mount and set it at an angle on top of the power supply. Position
the mount so that connector P32 on the DC controller board is
accessible.
Insert a folded piece of paper into the U of sensor PS201, and
make sure that the two cables are securely attached to the I/O
board. If you need to communicate with a Macintosh, you can do so
by reconnecting the serial connector.
Caution: Jumpering connector P32 initiates a service test page.
If the printer is in a test-ready configuration, you must manually
actuate this sensor as paper hits the delivery sensor actuator
within the fuser assembly.