Epson AcuLaser C2600 Service Manual page 180

EPSON AcuLaser C2600/2600
E256: Transfer belt unit lever out-of-position
Error Occurrence/Error Detection Method
This error occurs when the printer fails to detect the VSYNC at a predetermined
interval after it is turned on for the first time.
Possible Parts Caused the Error
No. Part Name
1 TRANSFER UNIT, Assy., ASP
2 HARNESS, MAIN
3 SERVOMOTOR, PC
Check Point
No.
1 Check if the photoconductor lock lever is set to printing position.
Check the connection status between the sensor and the MCU.
2
[TRANSFER UNIT, Assy., ASP] - [HARNESS, MAIN] - [BOARD ASSY.,
MAIN C585 MCU] (CN110)
Check the flag for detecting VSYNC (convex portion) on the extreme right
3
of the Transfer Belt for any abnormality.
4 Replace the [TRANSFER UNIT, Assy., ASP].
Check the connection status between the Motor and the MCU.
5
[SERVOMOTOR, PC] - [HARNESS, MAIN] - [BOARD ASSY., MAIN
C585 MCU] (CN105)
6 Replace the [SERVOMOTOR, PC].
Troubleshooting
Reference
page 284
---
page 299
Check Point
Troubleshooting According to the Error Message
Diagram
BOARD ASSY., MAIN
C585 MCU
HARNESS, MAIN
gry
wht
S.GND
1 1
/VSYNC
2 2
5V_LD
3 3
wht
OPCM_CLK
1 8
OPCM_SPEED
2 7
/OPCM_RDY
3 6
/OPCM_ON
4 5
P.GND
5 4
S24VF1
6 3
5V_LD
7 2
P.GND
8 1
Revision B
TRANSFER UNIT, Assy., ASP
wht wht
8 3 VSYNC Sensor
7 2
6 1
HARNESS, PATCH
blk
SERVO-
MOTOR, PC
03001401
180