Fusing Pressure Adjustment - Ricoh FT5580 Service Manual

9. Fusing Pressure Adjustment

When
Purpose
Target
Measure
How
1. Remove the fusing unit. (Refer to "Fusing
2. Remove the fusing unit cover (2 screws).
3. Remove the fusing unit knob [A] (1 screw).
4. Remove the oil pump mechanism [B] with the oil tank [C] (2 screws, 1
connector).
5. M o v e t h e p r e s s u r e s p r i n g s [ D ] t o t h e d e s i r e d p o s i t i o n . ( S e e t h e
following table.)
Position
A -- a
A -- b
B -- a
B -- b
Unfused copy with thick paper or
paper occurs.
To satisfy customer's applications.
Well fused copy without curl
Adjust fusing pressure spring positioning. (Three fusing
pressures are available.)
Changes the distance between upper and lower fusing
pressure levers.
Nip Width
7.2 mm
6.7 mm
7.7 mm
7.2 mm
Unit Removal.")
Spring Pressure
40 kg (Normal/Factory setting)
33 kg (Thin)
48 kg (Thick)
40 kg (Normal)
3-31
12 June 1987
paper curl with thin