Epson AcuLaser C2900N Service Manual page 129

Chapter 1 Troubleshooting
FIP-1.60 093-926 / 093-960 / 093-961 / 093-962: IOT (YMCK) CRUM ID Error
Step
Possible causative parts:
CONNECTOR CRUM (PL5.1.14)
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 TONER CRUM (PL5.1.26)
PWBA MCU (PL8.2.13)
Close the COVER ASSY WINDOW TNR correctly.
1 Does the error still occur when the power is turned OFF and
ON?
Checking the Toner Type.
2
Is the Toner for C2900 seated?
Checking after resetting the TONER CARTRIDGE (Y, M, C
or K).
Reseat the TONER CARTRIDGE (Y, M, C or K), and check
3
that the lock key is in the lock position.
Does the error still occur when the power is turned OFF and
ON?
Checking after replacing the TONER CARTRIDGE (Y, M, C
or K).
Replace the TONER CARTRIDGE (Y, M, C or K), and check
4
that the lock key is in the lock position. (Refer to RRP5.4.)
Does the error still occur when the power is turned OFF and
ON?
Checking the connector for connection.
Check the connectors between the PWBA MCU and
CONNECTOR CRUM.
Are P/J31 and P/J311(Y),P/J312(M),P/J313(C),P/J314(K)
connected correctly?
Example: For Yellow
5
Does the error still occur when the power is turned OFF and
6
ON?
Checking the HARN ASSY TONER CRUM for continuity.
Disconnect J31 from the PWBA MCU.
7
Disconnect J311 from the CONNECTOR CRUM.
Is each cable of J31 <=> J311/J312/J313/J314 continuous?
Checking the power to CONNECTOR CRUM.
Disconnect J31 from the PWBA MCU.
8
Is the voltage across P31-3pin(Y)/-7pin(M)/-11pin(C)/-15pin
<=> ground on the PWBA MCU, about +3.3 VDC?
Epson AcuLaser C2900N
Check
1 - 116
Remedy
Yes
Go to step 2. End of work.
Change the Toner
Go to step 3. Type setting to
Non-GenuineToner.
Go to step 4. End of work.
Go to step 5. End of work.
Reconnect the
connector(s) P/
J31 and/or P/J311
Go to step 7. (Y),P/J312 (M),P/
J313 (C),P/J314
(K) surly, then go
to step 6.
Go to step 7. End of work.
Replace the
HARN ASSY
Go to step 8.
TONER CRUM(Y,
M, C or K).
Replace the
Replace the
CONNECTOR
PWBA MCU.
CRUM(Y, M, C or
(Refer to RRP8.9.)
K).
Revision B
No
Confidential