Fusing Pressure Adjustment - Ricoh FT8680 Service Manual

IMAGE FUSING

9.7 FUSING PRESSURE ADJUSTMENT

Adjustment standards: Nip width 10 ± 0.5 mm (the difference between front
and rear measurement should be less than 0.5 mm).
1. Select the fusing nip width measure mode in the SP mode.
2. Make a black copy (sky shot) using A3/11" x 17" copy paper. A copy will
start. It will be stopped in the fusing unit for 15 seconds and then will exit.
3. Measure the nip band width (the shiny band) at both ends.
4. If the nip band width is not within specifications at both ends, release the
fusing pressure and adjust it using the adjustment screw [A] (clockwise =
increase pressure, counterclockwise = decrease pressure).
NOTE: Loosen the lock nuts [B] before turning the pressure adjustment
screw. Re-tighten the nuts after adjusting.
5. Repeat steps 1 to 4 to confirm the the nip band width.
[B]
5-88
31 July 1995
[A]
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