Paper Jam Occurred Immediately After Paper Feeding. (Multipurpose Tray) - Olivetti d-color MF1600 Service Manual

(4-2) Paper jam occurred immediately after paper feeding. (Multipurpose tray)

Confirmation Items
(4-2-1) Check paper-feeding route condition
Paper-feeding route inside
the multipurpose tray
(4-2-2) Check the mechanical parts' condition
Check the sensor lever of
the entry sensor 2 and WR
sensor.
Front cover
(4-2-3) Check the motor operation
Paper feed motor
Paper feed motor driver
(4-2-4) Check the connection
Paper feed motor cable
Paper feed motor cable
Paper feed motor
Y108500-4
Confirmatin Tasks
Check whether the paper jam occurred during the route.
Check whether there is something abnormal about the
form of sensor lever and its movement.
Check whether the left and right lock of front cover has
been locked normally.
Confirm both right and left locks of the front cover work
well.
By using the switch scanning test function of the
maintenance utility, check whether paper feed motor
operates normally.
Pull the HOP connector of main board (M32 PCB) out,
check the following data on the cable side.
SEVERAL MW Between 1pin-FG
SEVERAL MW Between 2pin-FG
SEVERAL MW Between 3pin-FG
SEVERAL MW Between 4pin-FG
Check the cable connection.By visual inspection, check
whether incompletely connection and oblique insertion
of HOP connector of main board (M32 PCB) or defective
cable assembly exists.
Check whether wire gnawing occurred during assembly
of equipment.Pull the HOP connector of main board (M32
PCB) out, check the followings on the cable side.
Short circuit between 1pin-FG
Short circuit between 2pin-FG
Short circuit between 3pin-FG
Short circuit between 4pin-FG
Pull the HOP connector of the main board (M32 PCB)
out, check whether the resistance values between 1pin-
2pin and 3pin-4pin are about 3.5W or 4.4W respectively.
Service Manual
Action at NG
Remove the jammed
paper.
Replace the sensor
lever with a new
one.
Replace the front
unit with a new one.
Replace the main
board (M32 PCB)
or paper feed motor
with new one.
Replace the main
board (M32 PCB)
with a new one.
Connect the cable
normally.Replace
the cable with a new
one.
Replace the cable
with a new one
and reassemble
correctly.
Replace the paper
feed motor with a
new one.
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