1 - 88
Chapter 1 Troubleshooting
Epson AcuLaser C2900N
Revision B
Confidential
8
Checking the ROLLER ASSY DUP for shape and operation.
Are ROLLER ASSY DUP seated correctly?
Also, are they not contaminated and/or damaged, and
rotated smoothly?
Check these items by turning with your finger.
Go to step 9.
Replace ROLLER
ASSY DUP. (Refer
to RRP9.2.)
9
Checking the HARN ASSY DUP RELAY for continuity
Disconnect J27 from PWBA MCU.
Disconnect P272 from HARN ASSY DUP RELAY.
Is each cable of J27 <=> P272 continuous?
Go to step 14.
Replace HARN
ASSY DUP
RELAY. (Refer to
RRP1.12.)
10
Checking the connectors of the SENSOR PHOTO (Regi
Sensor) for connection.
Check the connections between the PWBA MCU and
SENSOR PHOTO.
Are P/J23 and P/J232 connected correctly?
Go to step 11.
Reconnect the
connector(s) P/
J23 and/or P/J232
correctly.
11
Checking the HARN ASSY L SIDE for continuity.
Disconnect J23 from the PWBA MCU.
Disconnect J232 from the SENSOR PHOTO.
Is each cable of J23 <=> J232 continuous?
Go to step 12.
Replace the
HARN ASSY L
SIDE.
12
Checking the power to the SENSOR PHOTO.
Disconnect J23 from the PWBA MCU.
Is the voltage across P23-3pin <=> ground on the PWBA
MCU, about +3.3 VDC?
Go to step 13.
Replace the
PWBA MCU.
(Refer to RRP8.9.)
13
Checking the SENSOR PHOTO for operation.
Check the voltage across 23-5pin <=> ground on the PWBA
MCU.
Remove the CHUTE ASSY LOW (PL3.2.27) once to check
the operation.
Does the voltage change, when the actuator of the
SENSOR PHOTO is operated?
Replace the
PWBA MCU.
(Refer to RRP8.9.)
Replace the Regi
Sensor.
14
Checking after replacing FEEDER ASSY DUP SFP STD.
Replace FEEDER ASSY DUP SFP STD.
Does the error still occur when printing?
Go to step 15.
End of work.
15
Checking after replacing fuser unit.
Replace fuser unit.
Warning: Start the operation after the fuser unit has
cooled down.
Does the error still occur when printing?
NOTE: After replacement, be sure to clear life counter
value.
Replace the
PWBA MCU.
(Refer to RRP8.9.)
End of work.
Step
Check
Remedy
Yes
No
Summary of Contents for AcuLaser C2900N
Page 12: ...Confidential CHAPTER 1 Troubleshooting ...
Page 202: ...Confidential CHAPTER 2 Operation of Diagnostic ...
Page 253: ...Confidential CHAPTER 3 Removal and Replacement Procedures ...
Page 497: ...Confidential CHAPTER 4 Plug Jack P J Connector Locations ...
Page 508: ...Confidential CHAPTER 5 Parts List ...
Page 555: ...Confidential CHAPTER 6 Principles of Operation ...
Page 630: ...Confidential CHAPTER 7 Wiring Diagrams and Signal Information ...
Page 660: ...Confidential CHAPTER 8 Product Specifications ...
Page 674: ...8 13 Chapter 8 Product Specifications Epson AcuLaser C2900N Revision B Confidential ...