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Abnormal Noise When Exit Tray Lowers; Cb10 Feed Motor Abnormality; 10. Intermittent Stapling; 11. Mis-Stapling - Toshiba MJ-1028 Service Manual Addendum

Supplement to the troubleshooting section
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8. Abnormal Noise when exit tray lowers

Sometimes when the paper exit tray lowers an abnormal noise can occur. To prevent the
noise, the grease in the torque limiter has been changed. See the diagram below to
distinguish the new torque limiter from the old one.
MODEL
MJ-1027
MJ-1028

9. CB10 Feed Motor Abnormality

When this error occurs check the following items:
One-way bearing located inside the cam shutter (part number 4402350530 CAM-
SHUTTER). This may slip causing the error code. Clean/replace as needed.
Safety Switch (MS3) – The spring may not push hard enough on the actuator; reform
the switch arm to make good contact.

10. Intermittent Stapling

Perform Alignment Position adjustment (MJ1027/28 SM page 6-1). If the alignment is too
tight this may produce a buckle lifting the center of the paper off the stapling tray sensor
(PI4).

11. Mis-Stapling

Check the paddles and make sure they are not worn.
Check that the Paddle Solenoid (SL5) is working and that the paddles rotate during
every copy.

12. Adjustments that must be done when boards are replaced

When replacing boards and some sensors there are certain adjustments that must be done.
The adjustments can be found in Chapter 6 of the SM.
Finisher Controller PCB
Before Change
NTN
077
17A
P-I
Before Change
7-13
8-13
LIMITER- TORQUE
After Change
FC56862000
8
NTN
077
17a
After Change
4A30736000
LIMITER-TORQUE

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Mj-1027