Error Messages and Codes 3-49
Jam At Duplex; Open Duplex To Clear
Error Code
E7-0: Duplex jam
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ HVPS/Engine Logic Board
■ FDR1 AS SUB 150 A4
■ Duplex Unit Sensor
■ Duplex Unit Actuator
■ Duplex Unit Roller
■ Pinch Roller
■ Duplex Unit Motor
■ “Duplex Unit Plug/Jack Locator” on page 10-12
■ “Duplex Unit General Wiring Diagram” on
page 10-29
■ “Duplex Unit Signal Diagram” on page 10-30
Troubleshooting Procedure
Steps Actions and Questions Yes No
1
1. Remove and re-install the Duplex Unit.
2. Enter Service Diagnostics, and from the
Engine Test Print menu select Duplex
and set to ON.
3. From the Engine Test Print menu select
Print Test Pattern.
Does the error occur when Test Printing
Duplex?
Go to step 2. Problem solved.
2
Check the 150-Sheet Feeder for proper
installation.
Is the feeder installed correctly?
Go to step 3. Re-install the
150-Sheet
Feeder correctly.
3
1. Remove the Duplex Unit Left Cover
(page 8-117).
2. Manually rotate the gears.
Do the Duplex Unit Roller and all Gears
rotate smoothly?
Go to step 4. Replace parts as
necessary.
4
1. Open the Duplex Unit Housing Cover
and insert paper, and then close it.
2. Manually rotate the upper Roller Gear
clockwise and check paper transfer.
Is the paper transferred smoothly?
Go to step 5. Replace drive
parts as
necessary.
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