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2-68 Service Manual
5055-01x
Transfer Belt Up/Down Service Check
FRU Action
1 Belt Up/Down
Sensors
Belt Up/Down
Actuator
Check the transfer belt up/down sensor. Be sure that
connector CN29 is firmly connected to the printer
controller board. Replace the sensor or the actuator
if necessary. Check for a fluctuation between 0V and
+5 V between pins 8 and 10, while actuating the
sensor.
2 Belt Up/Down
Clutch
Be sure connector CN26 is firmly connected to the
printer controller board. Replace the belt up/down
unit if necessary.
3 Belt Up/Down
Lift Cams
Check and replace the belt up/down lift cam shaft if
necessary.
4 Printer
Controller
Board
If there still is a problem, replace the printer
controller board.
Service.bk Page 68 Thursday, October 4, 2001 12:20 PM