Nip Band Width Adjustment - Ricoh MP 7503SP Field Service Manual

Nip Band Width Adjustment

1. After the machine is turned on, make an A4/LT LEF copy, then stop the machine while the paper is
still in the fusing unit by switching the machine off.
• This is easier with an OHP sheet. Use an OHP sheet if you have one available.
2. Open the front door, then turn the fusing knob to feed out the copy.
3. Measure the width of the band on the part of the image where it is particularly black. The band,
called the nip band [A], should be 9.0 ± 0.7 mm at the center.
• When the fusing is incorrect (wrinkles, offset, curl), measure the nip band width.
• The nip band width can be adjusted by changing the position of the springs [B] on the ends of
the pressure roller.
• The fusing temperature can also be adjusted with SP1105 (Fusing Temperature Adjustment)
for Normal, OHP, and Thick Paper.
Fusing Unit Exit Sensor
1. Remove the fusing unit. Fusing Unit Removal
2. Open the hot roller stripper pawl unit [A]
3. Remove:
[B] Exit guide plate
[C] Fusing exit sensor holder
[D] Plate spring
Fusing Unit
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