Epson AcuLaser C2900N Service Manual page 77

Chapter 1 Troubleshooting
Step
Checking the ROLL ASSY FEED for shape and rotation
Pull the Tray 2 out from the printer.
10
Is the ROLL ASSY FEED not contaminated and/or
damaged, and rotated smoothly?
Checking the Tray 2 Feed Solenoid (SOLENOID FEED
MSI) for operation.
Does the Tray 2 Feed Solenoid (SOLENOID FEED MSI)
operate properly?
11
Checked by [Digital Output] - [DO-31] in [IOT Diag] of
diagnosis.
During this check, cheat the interlock switch (HARN ASSY
INTERLOCK).
Checking the Tray 2 Turn Clutch (CLUTCH ASSY DRV) for
operation.
Does the Tray 2 Turn Clutch (CLUTCH ASSY DRV) operate
properly?
12
Checked by [Digital Output] - [Tray 2 Turn Clutch] in [IOT
Diag] of diagnosis.
During this check, cheat the interlock switch (HARN ASSY
INTERLOCK).
Checking the paper lead edge staying position.
13 Does the paper lead edge stay before the ROLL ASSY
REGI and ROLL REGI METAL?
Checking the paper path.
Remove the Tray 1 and Tray 2 paper cassettes.
14
Are there any obstacles on the paper transfer path between
the Tray 2 and the Regi Assy?
Checking the connectors of the SENSOR PHOTO (Paper
Path Sensor) for connection.
15 Check the connections between the PWBA FFE D and
SENSOR PHOTO.
Are P/J420 and P/J4200 connected correctly?
Checking the HARNESS ASSY TRAY COMP for continuity.
Disconnect J420 from the PWBA FEED H.
16
Disconnect J4200 from the SENSOR PHOTO.
Is each cable of J420 <=> J4200 continuous?
Checking the power to the SENSOR PHOTO.
Disconnect J420 from the PWBA FEED H.
17
Is the voltage across P420-6pin <=> ground on the PWBA
FEED H, about +3.3 VDC?
Checking the SENSOR PHOTO for operation.
Check the voltage across J420-5pin <=> ground on the
18 PWBA FEED H.
Does the voltage change, when the actuator (ACTUATOR
REGI IN) is operated?
Checking the connectors for connection.
Check the connections between the PWBA FEED H and
19
MOTOR ASSY SUB.
Are P/J422 and P/J4211 connected correctly?
Checking the HARNESS ASSY TEAY MOT for continuity.
Disconnect J422 from the PWBA FEED H.
20
Disconnect J4211 from the MOTOR ASSY SUB.
Is each cable of J422 <=> J4211 continuous?
Epson AcuLaser C2900N
Check
1 - 64
Remedy
Yes
Replace the ROLL
ASSY FEED.
Go to step 11.
(Refer to
RRP10.2.)
Replace the
CASSETTE ASSY Go to step 22.
250 OPT.
Go to step 13. Go to step 26.
Replace the
FEEDER ASSY
Go to step 14.
OPT. (Refer to
RRP10.1.)
Remove the Replace the
obstacles or stains FEEDER ASSY
from the paper OPT. (Refer to
transfer path. RRP10.1.)
Reconnect the
connector(s) P/
Go to step 16.
J420 and/or P/
J4200 correctly.
Replace the
Go to step 17. HARNESS ASSY
TRAY COMP
Replace the
Go to step 18.
PWBA FEED H.
Replace the
Replace the SENSOR PHOTO
PWBA FEED H. (Paper Path
Sensor).
Reconnect the
connector(s) P/
Go to step 20.
J422 and/or P/
J4211 correctly.
Replace the
Go to step 21. HARNESS ASSY
TRAY MOT.
Revision B
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