Xerox DOCUPRINT N4525 Service Quick Reference Manual page 112

Table 1-63 Error Code C9-3 Paper Jam Reset ENV/Bypass (cont'd.)
Step Actions and Questions
6 REGISTRATION SENSOR TEST
1. Enter Diagnostics Mode.
2. From the Main Menu, select Comp Input Test / IOT
Unit / Reg. Sensor.
3. Press [4] to start, [0] to stop.
4. Insert, then remove, a sheet of paper into the
Registration Sensor.
Does the Control Panel display "with paper"
when you insert the paper into the Registration
Sensor, and is "without paper" displayed when
you remove the paper?
PRINT ENGINE CONTROLLER BOARD
7
REPLACEMENT
Replace the Print Engine Controller Board (RRP 1-72).
Does the error code appear?
8 The following printer components and areas are
associated with this specific problem. One or more of
these components or areas may have failed partially or
completely. If you cannot isolate this problem using the
steps in this Repair Analysis Procedure, replace each
component or troubleshoot each area listed below, one at
a time, until you isolate and solve the problem.
Wiring and connectors linking the components


Input/Output Board (RRP 1-70).


1-90 DocuPrint N4525 Network Laser Printer - Service Guide
Yes No
Go to step 7 Replace the
Registration
Sensor
Go to step 8 Problem
solved