Epson C 2900 Manual

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Epson AcuLaser C2900NRevision B
Confidential 20Checking the connectors of the CLUTCH ASSY DRV (Regi 
Clutch) for connection.
Check the connections between the PWBA MCU and 
CLUTCH ASSY DRV (Regi Clutch).
Are P/J26 and P/J262 connected correctly?
Go to step 21.Reconnect the 
connector(s) P/
J26 and/or P/J262 
correctly.
21Checking the HARN ASSY KSNR REGCL for continuity.
Disconnect J26 from the PWBA MCU.
Disconnect P262 from the CLUTCH ASSY DRV.
Is each cable of J26  P262 continuous?Go to step 22.Replace the 
HARN ASSY 
KSNR REGCL.
22Checking the power to the CLUTCH ASSY DRV.
Disconnect J26 from the PWBA MCU.
Is the voltage across P26-4pin  ground on the PWBA 
MCU, about +24 VDC when the Interlock Switch (HARN 
ASSY INTERLOCK) is pushed?Go to step 23.Replace the 
PWBA MCU. 
(Refer to RRP8.9.)
23Checking the CLUTCH ASSY DRV for resistance.
Disconnect P/J262 of the CLUTCH ASSY DRV.
Is the resistance across J262-1 and J262-2 approximately 
280-ohm?Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Replace the 
CLUTCH ASSY 
DRV. (Refer to 
RRP3.1.)
24Checking 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 25.Reconnect the 
connector(s) P/
J21 and/or P/J211 
correctly.
25Checking 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 26.Replace the 
HARNESS ASSY 
MAIN MOT MG 
SFP.
26Checking 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.) Step CheckRemedy
Ye s N o 
						

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Epson AcuLaser C2900NRevision B
Confidential
FIP-1.47  077-907: IOT Remain Duplex JAM (Duplex Model only)
Step CheckRemedy
Ye s N o
Possible causative parts:
HARN ASSY L SIDE (PL3.1.18)
SENSOR PHOTO (SSI No Paper Sensor) (PL3.2.13)
PWBA MCU (PL8.2.13)
1Checking the SENSOR PHOTO (SSI No Paper Sensor) for 
operation.
Does the number on the screen increase by one, every time 
the actuator of the SENSOR PHOTO (SSI No Paper 
Sensor) is operated?
Checked by [Digital Input] - [DI-0] in [IOT Diagnosis] of 
diagnosis.Replace the 
PWBA MCU. 
(Refer to RRP8.9.)Go to step 2.
2Checking the connectors of the SENSOR PHOTO (SSI No 
Paper Sensor) for connection.
Check the connections between the PWBA MCU and 
SENSOR PHOTO.
Are P/J23 and P/J233 connected correctly?Go to step 3.Reconnect the 
connector(s) P/
J23 and/or P/J233 
correctly.
3Checking the connectors of the SENSOR PHOTO (SSI No 
Paper Sensor) for connection.
Check the connections between the PWBA MCU and 
SENSOR PHOTO.
Are P/J23 and P/J233 connected correctly?Go to step 4.Reconnect the 
connector(s) P/
J23 and/or P/J233 
correctly.
4Checking the HARN ASSY L SIDE for continuity.
Disconnect J23 from the PWBA MCU.
Disconnect J233 from the SENSOR PHOTO.
Is each cable of J23  J233 continuous?Go to step 5.Replace the 
HARN ASSY L 
SIDE.
5Checking the power to the SENSOR PHOTO.
Disconnect J23 from the PWBA MCU.
Is the voltage across P23-6pin  ground on the PWBA 
MCU, about +3.3 VDC?Replace the 
SENSOR 
PHOTO(SSI No 
Paper Sensor)Replace the 
PWBA MCU. 
(Refer to RRP8.9.) 
						

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Epson AcuLaser C2900NRevision B
Confidential
FIP-1.48  091-402: IOT PHD Life Pre Warning
Step CheckRemedy
Ye s N o
Possible causative parts:
DRUM CARTRIDGE (PL4.1.21) 
PWBA MCU (PL8.2.13)
1Checking the life counter value of the DRUM CARTRIDGE.
Does the life count value show the near of the end?Replace the 
DRUM 
CARTRIDGE. 
(Refer to RRP4.6.)Go to step 2.
2Checking after resetting the DRUM CARTRIDGE.
Reseat the DRUM CARTRIDGE.
Does the error still occur when the power is turned OFF and 
ON?Go to step 3. End of work.
3Checking after replacing the DRUM CARTRIDGE.
Replace the DRUM CARTRIDGE. (Refer to RRP4.6.)
CAUTION: Be sure to pull eight sealing tapes out from a 
new DRUM CARTRIDGE before installation.
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-1.49  091-912: PHD Tape Staying
Step CheckRemedy
Ye s N o
Possible causative parts:
DRUM CARTRIDGE (PL4.1.21) 
PWBA MCU (PL8.2.13)
1Checking the sealing tapes of the DRUM CARTRIDGE 
staying.
Turn off the power, and open the COVER ASSY FRONT 
MG.
Remove the DRUM CARTRIDGE.
Has the sealing tapes (total eight sealing tapes) been pulled 
out?
After checking, reseat the DRUM CARTRIDGE correctly.Go to step 3.Pull the sealing 
tapes out, 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 after replacing the DRUM CARTRIDGE.
Replace the DRUM CARTRIDGE. (Refer to RRP4.6.)
CAUTION: Be sure to pull eight sealing tapes out from a 
new DRUM CARTRIDGE before installation.
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-1.50  091-916: IOT PHD CRUM ID Error
Step CheckRemedy
Ye s N o
Possible causative parts:
DRUM CARTRIDGE (PL4.1.21)
PWBA MCU (PL8.2.13)
HARN ASSY PHD XPRO (PL9.1.11)
1Does the error still occur when the power is turned OFF and 
ON?Go to step 2. End of work.
2Checking the DRUM CARTRIDGE type.
Is the seated DRUM CARTRIDGE for C2900? Go to step 4.Replace the PHD 
ASY for C2900, 
then go to step 3.
3Does the error still occur when the power is turned OFF and 
ON?Go to step 4. End of work.
4Checking after resetting the DRUM CARTRIDGE.
Reseat the DRUM CARTRIDGE.
Does the error still occur when the power is turned OFF and 
ON?Go to step 5. End of work.
5Checking the connectors for connection.
Check the connectors between the PWBA MCU and DRUM 
CARTRIDGE.
Are P/J42 and P/J422 connected correctly?Go to step 7.Reconnect the 
connector(s) P/
J42 and/or P/J422 
surly, then go to 
step 6.
6Does the error still occur when the power is turned OFF and 
ON?Go to step 7. End of work.
7Checking the HARN ASSY PHD XPRO for continuity.
Disconnect P422 from the DRUM CARTRIDGE.
Disconnect J42 from the PWBA MCU.
Is each cable of P422  J42 continuous?
Go to step 8.Replace the 
HARN ASSY PHD 
XPRO.
8Checking after replacing the DRUM CARTRIDGE.
Replace the DRUM CARTRIDGE. (Refer to RRP4.6.)
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-1.51  091-935: IOT PHD Life Over
Step CheckRemedy
Ye s N o
Possible causative parts:
DRUM CARTRIDGE (PL4.1.21) 
PWBA MCU (PL8.2.13)
1Checking the life counter value of the DRUM CARTRIDGE.
Does the life count value show the near of the end?Replace the 
DRUM 
CARTRIDGE. 
(Refer to RRP4.6.)Go to step 2.
2Checking after resetting the DRUM CARTRIDGE.
Reseat the DRUM CARTRIDGE.
Does the error still occur when the power is turned OFF 
and ON?Go to step 3. End of work.
3Checking after replacing the DRUM CARTRIDGE.
Replace the DRUM CARTRIDGE. (Refer to RRP4.6.)
CAUTION: Be sure to pull eight sealing tapes out from 
a new DRUM CARTRIDGE before installation.
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-1.52  091-941 / 091-942 / 091-943 / 091-944: IOT CRU Waste (YMCK) Full
Step CheckRemedy
Ye s N o
Possible causative parts:
TONER CARTRIDGE (Y) (PL5.1.24)
TONER CARTRIDGE (M) (PL5.1.23)
TONER CARTRIDGE (C) (PL5.1.22)
TONER CARTRIDGE (K) (PL5.1.21)
PWBA MCU (PL8.2.13)
1Checking after replacing the TONER CARTRIDGE (Y, M, C 
or K).
Replace the TONER CARTRIDGE (Y, M, C or K). (Refer to 
RRP5.4.)
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-1.53  091-972: IOT PHD Detached
Step CheckRemedy
Ye s N o
Possible causative parts:
DRUM CARTRIDGE (PL4.1.21)
PWBA MCU (PL8.2.13)
HARN ASSY PHD XPRO (PL9.1.11)
1Checking after resetting the DRUM CARTRIDGE.
Reseat the DRUM CARTRIDGE.
Does the error still occur when the power is turned OFF and 
ON?Go to step 2. End of work.
2Checking the connectors for connection.
Check the connectors between the PWBA MCU and DRUM 
CARTRIDGE.
Are P/J42 and P/J422 connected correctly?
Go to step 4.Reconnect the 
connector(s) P/
J42 and/or P/J422 
surly, then go to 
step 3.
3Does the error still occur when the power is turned OFF and 
ON?Go to step 4. End of work.
4Checking the HARN ASSY PHD XPRO for continuity.
Disconnect P422 from the DRUM CARTRIDGE.
Disconnect J42 from the PWBA MCU.
Is each cable of P422  J42 continuous?Go to step 5.Replace the 
HARN ASSY PHD 
XPRO.
5Checking after replacing the DRUM CARTRIDGE.
Replace the DRUM CARTRIDGE. (Refer to RRP4.6.)
CAUTION: Be sure to pull eight sealing tapes out from a 
new DRUM CARTRIDGE before installation.
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-1.54  092-310: IOT CTD (ACD) Sensor Error
Step CheckRemedy
Ye s N o
Possible causative parts:
DRUM CARTRIDGE (PL4.1.21)
DISPENSER ASSY (PL5.1.1)
FRAME ASSY MOT (PL5.1.2)
MOTOR ASSY DISP (PL5.1.3)
TONER CARTRIDGE (Y) (PL5.1.24)
TONER CARTRIDGE (M) (PL5.1.23)
TONER CARTRIDGE (C) (PL5.1.22)
TONER CARTRIDGE (K) (PL5.1.21)
HARN ASSY TNR MOT (PL5.1.25)
TRANSFER ASSY (PL6.1.7)
PWBA MCU (PL8.2.13)
1Checking the protection sheet staying.
Is there the protection sheet on the DRUM CARTRIDGE?
Remove the 
protection sheet.Go to step 2.
2Checking the CTD (ADC) Sensor Window.
Open the COVER ASSY FRONT MG.
Is the CTD (ADC) Sensor window dirty?
Go to step 3. Go to step 4.
3Turn off the power, and gently wipe the CTD (ADC) Sensor 
window with a clean dry cloth or cotton swab.
After wiping the window, close the COVER ASSY FRONT 
MG.
Does the error still occur when the power is turned OFF and 
ON?Go to step 4. End of work.
4Checking after resetting the TONER CARTRIDGE (Y, M, C 
and K).
Reseat the TONER CARTRIDGE (Y, M, C and K), and 
check that the lock key is in the lock position.
Does the error still occur when the power is turned OFF and 
ON?Go to step 5. End of work.
MiS01001SA
ADC Sensor window 
						

							1 - 107 Chapter 1   Troubleshooting
Epson AcuLaser C2900NRevision B
Confidential 5Checking the DISPENSE MOTOR (Y, M, C and K) for 
rotation.
Does the DISPENSE MOTOR (Y, M, C and K) function 
normally?
Checked by [Digital Output] - [Yellow Toner Motor,Magenta 
Toner Motor,Cyan Toner Motor,Black Toner Motor] in [IOT 
Diag] of diagnosis.
During this check, cheat the interlock switch (HARN ASSY 
INTERLOCK).Go to step 6. Go to step 7.
6Checking the gears of the DISPENSER ASSY for shape 
and operation.
Are the shape and operation of the gears of the 
DISPENSER ASSY normal?
Example: For Yellow
Go to step 11.Replace the 
defective gear(s) 
or DISPENSER 
ASSY. (Refer to 
RRP5.1.)
7Checking the connector for connection.
Check the connectors between the PWBA MCU and 
DISPENSE MOTOR (Y, M, C and K).
Are P/J18 and P/J181(Y)/P/J182(M) connected correctly?
Are P/J19 and P/J191(C)/P/J192(K) connected correctly?
Example: For Yellow
Go to step 9.Reconnect the 
connector(s) P/ 
J18 and P/J181 
surly, then go to 
step 8. or 
reconnect the 
connector(s) P/ 
J19 and P/J191 
surly, then go to 
step 8.
8Does the error still occur when the power is turned OFF and 
ON?Go to step 9. End of work.
9Checking the HARN ASSY TNR MOT for continuity.
Disconnect J18 from the PWBA MCU.
Disconnect J181(Y)/J182(M)/J191(C)/J192(K) from the 
DISPENSE MOTOR (YMCK) MOT.
Is each cable of J18  J181/182 continuous? or Is each 
cable of J19  J191/192 continuous?Go to step 10.Replace the 
HARN ASSY TNR 
MOT.
10Checking the power to TNR (Y) MOT (MOTOR ASSY 
DISP).
Disconnect J18 from the PWBA MCU.
Is the voltage across P18-3pin  ground on PWBA MCU, 
about +24 VDC when the interlock switch (HARN ASSY 
INTERLOCK) is pushed.Replace the 
MOTOR ASSY 
DISP or FRAME 
ASSY MOT.Replace the 
PWBA MCU. 
(Refer to RRP8.9.) Step CheckRemedy
Ye s N o
MiS01002SAGear