Epson AcuLaser C2900N Service Manual page 98

Chapter 1 Troubleshooting
FIP-1.40 077-104 / 077-105: IOT Exit Off JAM / IOT Exit Off early JAM
Step
Possible causative parts:
FUSER UNIT (PL6.1.1)
PWBA MCU (PL8.2.13)
HARNESS ASSY FUSING UNIT MG SFP (PL6.1.2)
Checking the error.
1 Replace to known good paper.
Does the error still occur when printing?
Checking the Exit Sensor for operation.
Does the number on the screen increase by one, when the
actuator of the Exit Sensor in the fuser unit is operated?
2 Checked by [Digital Input] - [Exit Sensor] on [IOT Diag] of
diagnosis.
Warning: Start the operation after the fuser unit has cooled
down.
Checking the connectors of the Exit Sensor in the fuser unit
for connection.
Check the connections between the PWBA MCU and fuser
unit.
Are P/J17 and P/J171 connected correctly?
3
Checking the HARNESS ASSY FUSING UNIT MG SFP for
continuity.
Remove the fuser unit.
4
Disconnect J17 from the PWBA MCU.
Is each cable of J17 <=> P171 continuous?
NOTE: P171 is attached to the frame.
Checking the power to the Exit Sensor in the fuser unit.
Disconnect the connector of J17 on the PWBA MCU.
5
Is the voltage across J17-1pin <=> ground on the PWBA
MCU, about +3.3 VDC?
Checking the Exit Sensor for operation.
Check the voltage across J17-3pin <=> ground on the
6 PWBA MCU.
Does the voltage change, when the actuator of the Exit
Sensor is operated?
Checking the Regi Rolls installation.
Open the Front Cover and check the Regi Rolls installation.
7
Is the ROLL REGI METAL pressed against the ROLL ASSY
REGI by the spring pressure?
Epson AcuLaser C2900N
Check
1 - 85
Remedy
Yes
Go to step 2. End of work.
Go to step 7. Go to step 3.
Reconnect the
connector(s) P/
Go to step 4.
J17 and/or P/J171
correctly.
Replace the
HARNESS ASSY
Go to step 5.
FUSING UNIT MG
SFP.
Replace the
Go to step 6. PWBA MCU.
(Refer to RRP8.9.)
Warning: Start the
operation after the
fuser unit has
cooled down.
Replace the
Replace the fuser
PWBA MCU.
unit. (Refer to
(Refer to RRP8.9.)
RRP6.1.) After
replacement, be
sure to clear the
life counter value.
Replace the
Go to step 8.
printer.
Revision B
No
Confidential