Tray Spring Pressure Adjustment - Minolta Di551 Service Manual

[6] Tray spring pressure adjustment

Caution: Tray spring pressure adjustment must
be performed when no feed or double
feed of paper occurs. Tray spring pres-
sure may be affected by the type of
paper used or the operating environ-
ment (under low temperature condi-
tions, no feed of paper tends to occur.
Under high temperature conditions,
double feed of paper tends to occur).
Excessive adjustment of tray spring
pressure may exacerbate the prob-
lem. Take care.
1. Tool
• Screwdriver (Phillips)
• Flat-nose pliers
2. Tray 1/2/3 spring pressure adjustment
a. Adjustment method
Step
Draw out the tray.
1
Remove the connector (CN814,834,854).
2
Remove one screw, loosen one hold-down
shaft screw, and detach the paper feed
unit.
1
3
1. Connector (CN814,834,854)
2. Fixing shaft screw
3. Paper feed unit
4. Screw
Operation
2
3
4
2-108
Change the spring hooking position at the
bottom of paper feed unit.
Weak: Double feed is prevented.
Strong: No feed is prevented.
Reference: Reference: The spring load
changes about 10 % each
time the spring is hooked in
the next slit.
4
Weak
Strong
Set the tray.
5
3. By-pass paper feed spring pressure adjustment
Screws
Spring
Weak
Spring mounting hole
ADJUSTMENT
Spring
Bottom plate
Strong