Table 1-66 Error Code H2-7 Duplex Unit Fail Power Off/On - Xerox DOCUPRINT N4525 Service Quick Reference Manual

RAP 1-38
Error Code H2-7
There is a communication problem between the printer and the Duplex Unit.
Logic Control on the Print Engine Controller Board could not initialize the Duplex
Unit within the specified time.

Table 1-66 Error Code H2-7 Duplex Unit Fail Power Off/On

Step Actions and Questions
1 LOW VOLTAGE POWER SUPPLY +5VDC
CHECK
Measure the voltage between J400, pins 1, 2 & 3 (on the
Print Engine Controller Board) and frame ground.
Is there +5VDC between J400, pins 1,2 & 3 and
frame ground?
2 DUPLEX BOARD REPLACEMENT
Replace the Duplex Module Board (RRP 3-5).
Does the error code appear?
3 PRINT ENGINE CONTROLLER BOARD
REPLACEMENT
Replace the Print Engine Controller Board (RRP 1-72).
Does the error code appear?
4 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).


Volume 1 / Print Engine - Error Codes & Messages
Duplex Unit Fail
Power Off/On
Yes
Go to step 2
Go to step 3
Go to step 4
No
Replace the
Low Voltage
Power Supply
Assembly
(RRP 1-67)
Problem
solved
Problem
solved
1-93