Epson C 2900 Manual

							1 - 78 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential 9Checking the HOLDER ASSY RETARD on the Tray 1 for 
shape and rotation.
Pull the Tray 1 out from the printer.
Is the HOLDER ASSY RETARD not contaminated and/or 
damaged, and rotated smoothly? Go to step 10.Replace the 
HOLDER ASSY 
RETARD. (Refer 
to RRP2.2.)
10Checking the ROLL ASSY FEED for shape and rotation.
Pull the Tray 1 out from the printer.
Is the ROLL ASSY FEED not contaminated and/or 
damaged, and rotated smoothly? Go to step 11. Replace the ROLL 
ASSY FEED.
(Refer to RRP3.5.)
11Checking the Cassette Feed Solenoid (SOLENOID FEED) 
for operation.
Does the Cassette Feed Solenoid (SOLENOID FEED) 
operate properly?
Checked by [Digital Output] - [Tray1 Feed Solenoid] in [IOT 
Diag] of diagnosis.
During this check, cheat the interlock switch (HARN ASSY 
INTERLOCK).Replace the 
CASSETTE ASSY 
250. (Refer to 
RRP2.1.)Go to step 21.
12Checking the paper lead edge staying position.
Does the paper lead edge stay before the ROLL ASSY 
REGI and ROLL REGI METAL?Go to step 13.The paper lead 
edge stay after the 
ROLL ASSY REGI 
and ROLL REGI 
METAL, then go to 
step 16.
13Checking the paper transfer path between the ROLL ASSY 
FEED and ROLL ASSY REGI.
Are there any obstacles on the paper transfer path?Remove the 
obstacles or stains 
from the paper 
transfer path.Go to step 14.
14Checking the ACTUATOR REGI IN for shape and 
operation.
Remove the CHUTE ASSY LOW (PL3.2.27) once to check 
the shape and operation.
Are the shape and operation of the ACTUATOR REGI IN 
normal?Go to step 15.Reseat the 
ACTUATOR REGI 
IN. (Refer to 
RRP3.7.) If broken 
or deformed, 
replace it.
15Checking the Regi. Sensor (SENSOR PHOTO) for 
operation.
Does the number on the screen increase by one, when the 
actuator (ACTUATOR REGI IN) is operated?
Remove the CHUTE ASSY LOW (PL3.2.27) once to check 
the operation.
Checked by [Digital Input] - [Regi Sensor] in [IOT Diag] of 
diagnosis.Go to step 16. Go to step 25.
16Checking the Regi. Clutch (CLUTCH ASSY DRV) for 
operation, and ROLL ASSY REGI and ROLL REGI METAL 
for rotation.
Checked by [Digital Output] - [Regi Clutch] in [IOT Diag] of 
diagnosis.
Does the Regi. Clutch (CLUTCH ASSY DRV) operate 
properly, and the ROLL ASSY REGI and ROLL REGI 
METAL rotate?
During this check, cheat the interlock switch (HARN ASSY 
INTERLOCK).Go to step 17. Go to step 29. Step CheckRemedy
Ye s N o 
						

							1 - 79 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential 17Checking the ACTUATOR REGI ROLL M for shape and 
operation.
Remove the CHUTE ASSY LOW (PL3.2.27) once to check 
the shape and operation.
Are the shape and operation of the ACTUATOR REGI 
ROLL M normal?Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Reseat the 
ACTUATOR REGI 
ROLL M. If broken 
or deformed, 
replace it with a 
new one. 
18Checking the connectors for connection.
Check the connections between the PWBA MCU and 
DRIVE ASSY MAIN (Main Motor).
Are P/J21 and P/J211 connected correctly?
Go to step 19.Reconnect the 
connector(s) P/
J21 and/or P/J211 
correctly.
19Checking the HARNESS ASSY MAIN MOT MG SFP for 
continuity.
Disconnect J21 from the PWBA MCU.
Disconnect J211 from the DRIVE ASSY MAIN.
Is each cable of J21  J211 continuous?Go to step 20.Replace the 
HARNESS ASSY 
MAIN MOT MG 
SFP.
20Checking the power to the DRIVE ASSY MAIN.
Disconnect J21 from the PWBA MCU.
Are the voltages across J21-2pin/J21-4pin  ground on 
the PWBA MCU, about +24 VDC when the interlock switch 
(HARN ASSY INTERLOCK) is pushed?Replace the 
DRIVE ASSY 
MAIN. (Refer to 
RRP7.2.)Replace the 
PWBA MCU. 
(Refer to RRP8.9.)
21Checking the connectors of the SOLENOID FEED 
(Cassette Feed Solenoid) for connection.
Check the connections between the PWBA MCU and 
SOLENOID FEED.
Are P/J23 and P/J231 connected correctly?
Go to step 22.Reconnect the 
connector(s) P/
J23 and/or P/J231 
correctly.
22Checking the HARN ASSY L SIDE for continuity.
Disconnect J23 from the PWBA MCU.
Disconnect P231 from the SOLENOID FEED.
Is each cable of J23  P231 continuous?Go to step 23.Replace the 
HARN ASSY L 
SIDE.
23Checking the power to the SOLENOID FEED.
Disconnect J23 from the PWBA MCU.
Is the voltage across P23-1pin  ground on the PWBA 
MCU, about +24 VDC when the Interlock Switch (HARN 
ASSY INTERLOCK) is pushed?Go to step 24.Replace the 
PWBA MCU. 
(Refer to RRP8.9.) Step CheckRemedy
Ye s N o 
						

							1 - 80 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential 24Checking the SOLENOID FEED for resistance.
Disconnect P/J231 of the SOLENOID FEED.
Is the resistance across J231-1 and J231-2 about 96 ohm?Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Replace the 
SOLENOID FEED 
MSI. (Refer to 
RRP3.3.)
25Checking 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 26.Reconnect the 
connector(s) P/
J23 and/or P/J232 
correctly.
26Checking 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 27.Replace the 
HARN ASSY L 
SIDE.
27Checking 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 28.Replace the 
PWBA MCU. 
(Refer to RRP8.9.)
28Checking the SENSOR PHOTO for operation.
Check the voltage across J23-5pin  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 (ACTUATOR 
REGI IN) is operated?Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Replace the 
SENSOR 
PHOTO:REGI.
(Refer to RRP3.8.) Step CheckRemedy
Ye s N o 
						

							1 - 81 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential
FIP-1.39  077-102 / 077-103 / 077-106: IOT Exit On JAM / IOT Exit On early JAM / IOT 
Stop Reservation JAM
Step CheckRemedy
Ye s N o
Possible causative parts:
CASSETTE ASSY 250 (PL2.1.1)
HOLDER ASSY RETARD (PL2.1.5)
CLUTCH ASSY DRV (PL3.1.1)
SOLENOID FEED MSI (PL3.1.11)
HARN ASSY L SIDE (PL3.1.18)
ROLL ASSY FEED (PL3.2.4)
ACTUATOR REGI ROLL M (PL3.2.8)
ACTUATOR REGI IN (PL3.2.11)
SENSOR PHOTO (PL3.2.13)
DRIVE ASSY MAIN (PL7.1.2)
DRIVE ASSY PH (PL7.1.4)
PWBA MCU (PL8.2.13)
HARNESS ASSY MAIN MOT MG SFP (PL9.1.7)
HARN ASSY KSNR REGCL (PL9.1.9)
1Checking the paper condition.
Is the paper in the Tray 1 wrinkled or damaged?Replace the paper 
with a new and dry 
one, then go to 
step 2.Go to step 3.
2 Does the error still occur when printing? Go to step 3. End of work.
3Checking after reloading a new paper.
Reload a new paper in the Tray 1.
Does the error still occur when printing?Go to step 4. End of work.
4Checking the COVER ASSY FRONT MG for latching.
Open and close the COVER ASSY FRONT MG, and then 
latch correctly.
Does the error still occur when printing?Go to step 5. End of work.
5Checking the Main Motor (DRIVE ASSY MAIN) for 
operation.
Does the Main Motor (DRIVE ASSY MAIN) operate 
properly?
Checked by [Digital Output] - [Main Motor] on [IOT Diag] of 
diagnosis.
During this check, cheat the interlock switch (HARN ASSY 
INTERLOCK).Go to step 6. Go to step 18.
6Checking the DRIVE ASSY PH for operation.
Does the ROLL ASSY FEED, ROLL ASSY REGI and ROLL 
REGI METAL rotate properly?
Checked by [Digital Output] - [Regi Clutch] on [IOT Diag] of 
diagnosis.
During this check, cheat the interlock switch (HARN ASSY 
INTERLOCK).Go to step 7.Reseat or replace 
the DRIVE ASSY 
PH. (Refer to 
RRP7.3.)
7Checking the paper feeding position.
Is the paper not fed from the Tray 1?Go to step 8. Go to step 12.
8Checking after resetting the Guide Sides and End Guide on 
the Tray 1.
Reset the Guide Sides and End Guide, and reseat the Tray 
1 to the printer correctly.
Does the error still occur when printing?Go to step 9. End of work. 
						

							1 - 82 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential 9Checking the HOLDER ASSY RETARD on the Tray 1 for 
shape and rotation.
Pull the Tray 1 out from the printer.
Is the HOLDER ASSY RETARD not contaminated and/or 
damaged, and rotated smoothly? Go to step 10.Replace the 
HOLDER ASSY 
RETARD. (Refer 
to RRP2.2.)
10Checking the ROLL ASSY FEED for shape and rotation.
Pull the Tray 1 out from the printer.
Is the ROLL ASSY FEED not contaminated and/or 
damaged, and rotated smoothly? Go to step 11. Replace the ROLL 
ASSY FEED.
(Refer to RRP3.5.)
11Checking the Cassette Feed Solenoid (SOLENOID FEED) 
for operation.
Does the Cassette Feed Solenoid (SOLENOID FEED) 
operate properly?
Checked by [Digital Output] - [Tray1 Feed Solenoid] in [IOT 
Diag] of diagnosis.
During this check, cheat the interlock switch (HARN ASSY 
INTERLOCK).Replace the 
CASSETTE ASSY 
250. (Refer to 
RRP2.1.)Go to step 21.
12Checking the paper lead edge staying position.
Does the paper lead edge stay before the ROLL ASSY 
REGI and ROLL REGI METAL?Go to step 13.The paper lead 
edge stay after the 
ROLL ASSY REGI 
and ROLL REGI 
METAL, then go to 
step 16.
13Checking the paper transfer path between the ROLL ASSY 
FEED and ROLL ASSY REGI.
Are there any obstacles on the paper transfer path?Remove the 
obstacles or stains 
from the paper 
transfer path.Go to step 14.
14Checking the ACTUATOR REGI IN for shape and operation.
Remove the CHUTE ASSY LOW (PL3.2.27) once to check 
the shape and operation.
Are the shape and operation of the ACTUATOR REGI IN 
normal?Go to step 15.Reseat the 
ACTUATOR REGI 
IN. (Refer to 
RRP3.7.) If broken 
or deformed, 
replace it.
15Checking the Regi. Sensor (SENSOR PHOTO) for 
operation.
Does the number on the screen increase by one, when the 
actuator (ACTUATOR REGI IN) is operated?
Remove the CHUTE ASSY LOW (PL3.2.27) once to check 
the operation.
Checked by [Digital Input] - [Regi Sensor] in [IOT Diag] of 
diagnosis.Go to step 16. Go to step 25.
16Checking the Regi. Clutch (CLUTCH ASSY DRV) for 
operation, and ROLL ASSY REGI and ROLL REGI METAL 
for rotation.
Checked by [Digital Output] - [Regi Clutch] in [IOT Diag] of 
diagnosis.
Does the Regi. Clutch (CLUTCH ASSY DRV) operate 
properly, and the ROLL ASSY REGI and ROLL REGI 
METAL rotate?
During this check, cheat the interlock switch (HARN ASSY 
INTERLOCK).Go to step 17. Go to step 29. Step CheckRemedy
Ye s N o 
						

							1 - 83 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential 17Checking the ACTUATOR REGI ROLL M for shape and 
operation.
Remove the CHUTE ASSY LOW (PL3.2.27) once to check 
the shape and operation.
Are the shape and operation of the ACTUATOR REGI 
ROLL M normal?Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Reseat the 
ACTUATOR REGI 
ROLL M. If broken 
or deformed, 
replace it with a 
new one. 
18Checking the connectors for connection.
Check the connections between the PWBA MCU and 
DRIVE ASSY MAIN (Main Motor).
Are P/J21 and P/J211 connected correctly?
Go to step 19.Reconnect the 
connector(s) P/
J21 and/or P/J211 
correctly.
19Checking the HARNESS ASSY MAIN MOT MG SFP for 
continuity.
Disconnect J21 from the PWBA MCU.
Disconnect J211 from the DRIVE ASSY MAIN.
Is each cable of J21  J211 continuous?Go to step 20.Replace the 
HARNESS ASSY 
MAIN MOT MG 
SFP.
20Checking the power to the DRIVE ASSY MAIN.
Disconnect J21 from the PWBA MCU.
Are the voltages across J21-2pin/J21-4pin  ground on 
the PWBA MCU, about +24 VDC when the interlock switch 
(HARN ASSY INTERLOCK) is pushed?Replace the 
DRIVE ASSY 
MAIN. (Refer to 
RRP7.2.)Replace the 
PWBA MCU. 
(Refer to RRP8.9.)
21Checking the connectors of the SOLENOID FEED 
(Cassette Feed Solenoid) for connection.
Check the connections between the PWBA MCU and 
SOLENOID FEED.
Are P/J23 and P/J231 connected correctly?
Go to step 22.Reconnect the 
connector(s) P/
J23 and/or P/J231 
correctly.
22Checking the HARN ASSY L SIDE for continuity.
Disconnect J23 from the PWBA MCU.
Disconnect P231 from the SOLENOID FEED.
Is each cable of J23  P231 continuous?Go to step 23.Replace the 
HARN ASSY L 
SIDE.
23Checking the power to the SOLENOID FEED.
Disconnect J23 from the PWBA MCU.
Is the voltage across P23-1pin  ground on the PWBA 
MCU, about +24 VDC when the Interlock Switch (HARN 
ASSY INTERLOCK) is pushed?Go to step 24.Replace the 
PWBA MCU. 
(Refer to RRP8.9.) Step CheckRemedy
Ye s N o 
						

							1 - 84 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential 24Checking the SOLENOID FEED for resistance.
Disconnect P/J231 of the SOLENOID FEED.
Is the resistance across J231-1 and J231-2 about 96 ohm?Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Replace the 
SOLENOID FEED 
MSI. (Refer to 
RRP3.3.)
25Checking 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 26.Reconnect the 
connector(s) P/
J23 and/or P/J232 
correctly.
26Checking 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 27.Replace the 
HARN ASSY L 
SIDE.
27Checking 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 28.Replace the 
PWBA MCU. 
(Refer to RRP8.9.)
28Checking the SENSOR PHOTO for operation.
Check the voltage across J23-5pin  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 (ACTUATOR 
REGI IN) is operated?Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Replace the 
SENSOR 
PHOTO:REGI.
(Refer to RRP3.8.) Step CheckRemedy
Ye s N o 
						

							1 - 85 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential
FIP-1.40  077-104 / 077-105: IOT Exit Off JAM / IOT Exit Off early JAM
Step CheckRemedy
Ye s N o
Possible causative parts:
FUSER UNIT (PL6.1.1)
PWBA MCU (PL8.2.13)
HARNESS ASSY FUSING UNIT MG SFP (PL6.1.2)
1Checking the error.
Replace to known good paper.
Does the error still occur when printing?Go to step 2. End of work.
2Checking 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?
Checked by [Digital Input] - [Exit Sensor] on [IOT Diag] of 
diagnosis.
Warning: Start the operation after the fuser unit has cooled 
down.Go to step 7. Go to step 3.
3Checking 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?
Go to step 4.Reconnect the 
connector(s) P/ 
J17 and/or P/J171 
correctly.
4Checking the HARNESS ASSY FUSING UNIT MG SFP for 
continuity.
Remove the fuser unit.
Disconnect J17 from the PWBA MCU.
Is each cable of J17  P171 continuous?
NOTE: P171 is attached to the frame.Go to step 5.Replace the 
HARNESS ASSY 
FUSING UNIT MG 
SFP.
5Checking the power to the Exit Sensor in the fuser unit.
Disconnect the connector of J17 on the PWBA MCU.
Is the voltage across J17-1pin  ground on the PWBA 
MCU, about +3.3 VDC?Go to step 6.Replace the 
PWBA MCU. 
(Refer to RRP8.9.)
6Checking the Exit Sensor for operation.
Check the voltage across J17-3pin  ground on the 
PWBA MCU.
Does the voltage change, when the actuator of the Exit 
Sensor is operated?Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Warning: Start the 
operation after the 
fuser unit has 
cooled down.
Replace the fuser 
unit. (Refer to 
RRP6.1.) After 
replacement, be 
sure to clear the 
life counter value.
7Checking the Regi Rolls installation.
Open the Front Cover and check the Regi Rolls installation.
Is the ROLL REGI METAL pressed against the ROLL ASSY 
REGI by the spring pressure?Go to step 8.Replace the 
printer. 
						

							1 - 86 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential 8Checking the Regi Clutch.
Does the clutch noise occur?
Checked by [Digital Output] - [Regi Clutch] in [IOT Diag] of 
diagnosis.Replace the 
printer.Replace the 
PWBA MCU. 
(Refer to RRP8.9.) Step CheckRemedy
Ye s N o 
						

							1 - 87 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential
FIP-1.41  077-107 / 077-108: IOT Duplex Misfeed JAM / IOT Duplex JAM (Duplex Model 
only)
Step CheckRemedy
Ye s N o
Possible causative parts:
HARN ASSY DUP RELAY (PL1.2.13)
HARN ASSY L SIDE (PL3.1.18)
HARN ASSY OPTION (PL3.1.20)
ROLL ASSY REGI (PL3.2.9)
ROLL REGI METAL (PL3.2.10)
ROLLER ASSY DUP (PL11.2.9)
SENSOR PHOTO(Regi Sensor) (PL3.2.13)
FUSER UNIT (PL6.1.1)
PWBA MCU (PL8.2.13)
FEEDER ASSY DUP SFP STD (PL11.1.1)
1Checking the COVER ASSY FRONT MG for latching.
Open and close the COVER ASSY FRONT MG, then check 
the latching.
Does the error still occur when printing?Go to step 2. End of work.
2Checking after resetting the fuser unit.
Reseat the fuser unit.
Warning: Start the operation after the fuser unit has cooled 
down.
Does the error still occur when printing?Go to step 3. End of work.
3Checking after resetting the Duplex.
Reseat the Duplex.
Does the error still occur when printing?Go to step 4. End of work.
4Checking the DRIVE ASSY EXIT for operation.
Does the DRIVE ASSY EXIT operate properly?
Checked by [Digital Output] - [Exit Motor] on [IOT Diag] of 
diagnosis.
During this check, cheat the interlock switch (HARN ASSY 
INTERLOCK).Go to step 5.Replace FEEDER 
ASSY DUP SFP 
STD. (Refer to 
RRP9.1.)
5Checking the DRIVE ASSY DUP for operation.
Does the DRIVE ASSY DUP operate properly?
Checked by [Digital Output] - [Duplex Motor] on [IOT Diag] 
of diagnosis.
During this check, cheat the interlock switch (HARN ASSY 
INTERLOCK).Go to step 6.Replace FEEDER 
ASSY DUP SFP 
STD. (Refer to 
RRP9.1.)
6Checking the Duplex Clutch for operation.
Does the Duplex Clutch operate properly?
Checked by [Digital Output] - [Duplex Clutch] on [IOT Diag] 
of diagnosis.
During this check, cheat the interlock switch (HARN ASSY 
INTERLOCK).Go to step 7.Replace FEEDER 
ASSY DUP SFP 
STD. (Refer to 
RRP9.1.)
7Checking the SENSOR PHOTO (REGI SENSOR) for 
operation.
Does the number on the screen increase by one, every time 
the actuator of the SENSOR PHOTO (REGI SENSOR) is 
operated?
Checked by [Digital Input] - [Regi Sensor] in [IOT Diagnosis] 
of diagnosis.Go to step 8. Go to step 10.