Epson C 2900 Manual

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Epson AcuLaser C2900NRevision B
Confidential 8Checking 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.)
9Checking 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.)
10Checking 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.
11Checking 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.
12Checking 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.)
13Checking 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.
14Checking 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.
15Checking 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 CheckRemedy
Ye s N o 
						

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Epson AcuLaser C2900NRevision B
Confidential
FIP-1.42  077-215: IOT Duplexer Failure (Duplex Model only)
Step CheckRemedy
Ye s N o
Possible causative parts:
HARN ASSY DUP RELAY (PL1.2.13)
PWBA MCU (PL8.2.13)
HARNESS ASSY DUP (PL11.1.14)
FEEDER ASSY DUP SFP STD (PL11.1.1)
HARN ASSY OPTION (PL3.1.20)
1Checking the Option Duplex for installation.
Is the Option Duplex installed correctly?Go to step 3.Reseat the Option 
Duplex, then go to 
step 2.
2Does the error still occur when the power is turned OFF 
and ON?Go to step 3. End of work.
3Checking the connectors for connection.
Check the connections between the PWBA DUP and 
PWBA MCU.
Are P/J27, P/J271,P/J272 and P/J 601 connected surely?Go to step 5.Reconnect the 
connector(s) P/
J27, P/J271,P/
J272 and/or P/J 
601 surely, then 
go to step 4.
4Does the error still occur when the power is turned OFF 
and ON?Go to step 5. End of work
5Checking the HARNESS ASSY DUP for continuity.
Disconnect P/J601 from the PWBA DUP.
Disconnect P/J272 from the HARNE ASSY DUP.
Is each cable of P/J601  P/J272 continuous?Go to step 6.Replace the 
HARNESS ASSY 
DUP.
6Checking the HARN ASSY DUP RELAY for continuity.
Disconnect P/J271 from the HARNESS ASSY DUP.
Disconnect P/J 272 from the HARN ASSY OPTION.
Is each cable of P/J271 P/J272 continuous?Go to step 7.Replace the 
HARN ASSY DUP 
RELAY.
(Refer to 
RRP1.12.)
7Checking the HARN ASSY OPTION for continuity.
Disconnect P/J27 from the PWBA MCU.
Disconnect P/J 271 from the HARN ASSY DUP RELAY.
Is each cable of P/J27 P/J271 continuous?Go to step 8.Replace the 
HARN ASSY 
OPTION.
8Checking after replacing the FEEDER ASSY DUP SFP 
STD.
Replace the FEEDER ASSY DUP SFP STD. (Refer to 
RRP9.1.)
Does the error still occur when the power is turned OFF 
and ON?Replace the 
PWBA MCU. 
(Refer to RRP8.9.)End of work. 
						

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Epson AcuLaser C2900NRevision B
Confidential
FIP-1.43  077-300: IOT Cover Front Open
Step CheckRemedy
Ye s N o
Possible causative parts:
COVER ASSY FRONT MG (PL1.2.1)
PWBA LVPS (PL8.2.1)
HARN ASSY INTERLOCK (PL8.2.5)
PWBA MCU (PL8.2.13)
HARNESS ASSY LVPS MAIN MG SFP (PL9.1.3)
1Checking the COVER ASSY FRONT MG (Front Cover) for 
shape.
Are there any damages on the COVER ASSY FRONT MG?Replace the 
COVER ASSY 
FRONT MG. 
(Refer to RRP1.8.)Go to step 2.
2Checking the COVER ASSY FRONT MG for latching.
Open and close the COVER ASSY FRONT MG.
Is the COVER ASSY FRONT MG latched correctly?Go to step 3.Reseat or replace 
the COVER ASSY 
FRONT MG. 
(Refer to RRP1.8.)
3Checking the interlock switch for operation.
Does the number on the screen increase by one, when the 
COVER ASSY FRONT MG is closed and opened?
Checked by [Digital Input] - [Cover Open Sensor] in [IOT 
Diag] of diagnosis.Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Go to step 4.
4Checking the connectors for connection.
Check the connections between PWBA MCU and PWBA 
LVPS.
Are P/J14 and P/J501 connected correctly?
Go to step 6.Reconnect the 
connector(s) P/
J14 and/or P/J501 
correctly, then go 
to step 5.
5Does the error still occur when the power is turned OFF and 
ON?Go to step 6. End of work.
6Checking the HARNESS ASSY LVPS MAIN MG SFP for 
continuity.
Disconnect J14 from the PWBA MCU.
Disconnect J501 from the PWBA LVPS.
Is each cable of J14  J501 continuous?Go to step 7.Replace the 
HARNESS ASSY 
LVPS MAIN MG 
SFP. 
						

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Epson AcuLaser C2900NRevision B
Confidential 7Checking the power to the Interlock Switch
Disconnect the connector of J44 on the PWBA LVPS.
Is the voltage across P44-1  ground on the PWBA 
LVPS, about +24 VDC?
Go to step 8.Replace the 
PWBA LVPS. 
(Refer to RRP8.5.)
8Checking the Interlock Switch for operation
Check the voltage across P44-3pin  ground on the 
PWBA LVPS.
Does the voltage change, when the Interlock Switch is 
turned ON/OFF?Replace the 
PWBA LVPS. 
(Refer to RRP8.5.)Replace the 
HARN ASSY 
INTERLOCK. 
(Refer to RRP8.6.) Step CheckRemedy
Ye s N o 
						

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Epson AcuLaser C2900NRevision B
Confidential
FIP-1.44  077-301: IOT Side Cover Open
Step CheckRemedy
Ye s N o
Possible causative parts:
COVER ASSY WINDOW TNR (PL1.1.7)
SWITCH (PL5.1.9)
HARN ASSY SIDE SW (PL5.1.27)
PWBA MCU (PL8.2.13)
1Checking the COVER ASSY WINDOW TNR (Side Cover) 
for shape.
Are there any damages on the COVER ASSY WINDOW 
TNR?Replace the 
COVER ASSY 
WINDOW TNR. 
(Refer to RRP1.6.)Go to step 2.
2Checking the COVER ASSY WINDOW TNR for latching.
Open and close the COVER ASSY WINDOW TRN.
Is the COVER ASSY WINDOW TNR latched correctly?Go to step 3.Reseat or replace 
the COVER ASSY 
WINDOW TNR. 
(Refer to RRP1.6.)
3Checking the Side R Switch (SWITCH) for operation.
Does the number on the screen increase by one, when the 
COVER ASSY WINDOW TRN is closed and opened?
Checked by [Digital Input] - [Side Switch] in [IOT Diag] of 
diagnosis.Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Go to step 4.
4Checking the HARN ASSY SIDE SW for continuity.
Disconnect J29 from the PWBA MCU.
Disconnect J291 from the SIDE R SWITCH.
Is each cable of J29  J291 continuous?
Go to step 5.Replace the 
HARN ASSY 
SIDE SW.
5Checking after replacing the Side R Switch (SWITCH).
Replace the Side R Switch (SWITCH). (Refer to RRP5.2.)
Does the error still occur when the power is turned OFF and 
ON?Replace the 
PWBA MCU. 
(Refer to RRP8.9.)End of work. 
						

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Epson AcuLaser C2900NRevision B
Confidential
FIP-1.45  077-900: IOT Exit JAM
Step CheckRemedy
Ye s N o
Possible causative parts:
FUSER UNIT (PL6.1.1)
HARNESS ASSY FUSING UNIT MG SFP (PL6.1.2)
PWBA MCU (PL8.2.13)
1Checking the paper feeding
Was a paper fed from SSI?Go to step 2. Go to step 4.
2Checking the paper setting
Was the paper correctly set to SSI without slant?Go to step 4.Set the paper to 
SSI correctly, and 
go to step 3.
3 Does the error still occur when printing? Go to step 4. End of work.
4Checking the paper condition
Is the paper wrinkled or damaged?Replace the paper 
with a new and dry 
one, then go to 
step 5.Go to step 6.
5 Does the error still occur when printing? Go to step 7. End of work.
6Checking after reloading a new paper
Reload a new paper.
Does the error still occur when printing?Go to step 7. End of work.
7Checking 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 8. End of work.
8Checking the fuser unit
Are there any remaining paper and/or foreign substance in 
the fuser unit?
Warning: Start the operation after the fuser unit has 
cooled down.Remove the paper 
and/or substance, 
then go to step 9.Go to step 9.
9Checking 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 10. End of work.
10Checking 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] in [IOT Diag] of 
diagnosis.
Warning: Start the operation after the fuser unit has 
cooled down.Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Go to step 11. 
						

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Epson AcuLaser C2900NRevision B
Confidential 11Checking 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 12.Reconnect the 
connector(s) P/
J17 and/or P/J171 
correctly.
12Checking 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 13.Replace the 
HARNESS ASSY 
FUSING UNIT MG 
SFP.
13Checking 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 14.Replace the 
PWBA MCU. 
(Refer to RRP8.9.)
14Checking 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. Step CheckRemedy
Ye s N o 
						

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Epson AcuLaser C2900NRevision B
Confidential
FIP-1.46  077-901: IOT Remain Registration JAM
Step CheckRemedy
Ye s N o
Possible causative parts:
CLUTCH ASSY DRV (PL3.1.1)
HARN ASSY L SIDE (PL3.1.18)
ACTUATOR REGI ROLL M (PL3.2.8)
ROLL ASSY REGI (PL3.2.9)
ROLL REGI METAL (PL3.2.10)
ACTUATOR REGI IN (PL3.2.11)
SENSOR PHOTO (PL3.2.13)
TRANSFER ASSY (PL6.1.7)
DRIVE ASSY MAIN (PL7.1.2)
PWBA MCU (PL8.2.13)
HARNESS ASSY MAIN MOT MG SFP (PL9.1.7)
HARN ASSY KSNR REGCL (PL9.1.9)
1Checking the paper size.
Does the using paper size meet the specification?Go to step 3.Use the paper that 
meets the 
specifications, 
then go to step 2.
2 Does the error still occur when printing? Go to step 3. End of work.
3Checking the paper condition.
Is the paper wrinkled or damaged?Replace the paper 
with a new and dry 
one, then go to 
step 4.Go to step 5.
4 Does the error still occur when printing? Go to step 6. End of work.
5Checking after reloading a new paper.
Reload a new paper.
Does the error still occur when printing?Go to step 6. End of work.
6Checking 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 7. End of work.
7Checking around the Regi Sensor.
Are there any remaining paper and/or foreign substance 
around the Regi Sensor?Remove the paper 
and/or substance, 
then go to step 8.Go to step 9.
8 Does the error still occur when printing? Go to step 9. End of work.
9Checking the TRANSFER ASSY.
Are there any remaining paper and/or damage on the belt of 
the TRANSFER ASSY?Remove the 
remaining paper. If 
the belt is dam-
aged, replace the 
TRANSFER 
ASSY. (Refer to
RRP6.3.)Go to step 10.
10Checking the ROLL ASSY REGI and ROLL REGI METAL 
for shape and operation.
Remove the DRUM CARTRIDGE once to check the 
followings.
Are ROLL ASSY REGI and ROLL REGI METAL seated 
correctly?
Also, are they not contaminated and/or damaged, and 
rotated smoothly?
Check these items by turning with your finger.Go to step 11.Clean or replace 
the defective 
ROLL(s).  
						

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Epson AcuLaser C2900NRevision B
Confidential 11Checking the ACTUATOR REGI IN and ACTUATOR REGI 
ROLL M for shape and operation.
Remove the CHUTE ASSY LOW (PL3.2.27) once to check 
the following. 
Are the shape and operation of the ACTUATOR REGI IN 
and ACTUATOR REGI ROLL M normal?Go to step 12.Reseat the 
ACTUATOR REGI 
IN and/or 
ACTUATOR REGI 
ROLL M. If broken 
or deformed, 
replace it or they. 
12Checking the Regi. Sensor (SENSOR PHOTO) for 
operation.
Does the number on the screen increase by one, when the 
actuator (ACTUATOR REGI IN) of the Regi. Sensor 
(SENSOR PHOTO) 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 13. Go to step 16.
13Checking 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 14. Go to step 20.
14Checking the Main Motor (DRIVE ASSY MAIN) for 
operation.
Does the Main Motor (DRIVE ASSY MAIN) operate 
properly?
Checked by [Digital Output] - [Main Motor] in [IOT Diag] of 
diagnosis.
During this check, cheat the interlock switch (HARN ASSY 
INTERLOCK).Go to step 15. Go to step 24. Step CheckRemedy
Ye s N o 
						

							1 - 97 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential 15Checking after resetting the TRANSFER ASSY
Reseat the TRANSFER ASSY.
Does the error still occur when printing?
Replace the 
TRANSFER 
ASSY. (Refer to 
RRP6.3.)End of work.
16Checking 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 17.Reconnect the 
connector(s) P/
J23 and/or P/J232 
correctly.
17Checking 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 18.Replace the 
HARN ASSY L 
SIDE.
18Checking 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 19.Replace the 
PWBA MCU. 
(Refer to RRP8.9.)
19Checking 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 
SENSOR 
PHOTO.  Step CheckRemedy
Ye s N o