Tray Spring Pressure Adjustment - Konica Minolta 7155 Service Manual

OTHER ADJUSTMENT

[6] Tray spring pressure adjustment

Caution: Tray spring pressure adjustment must
be performed when no feed or double
feed of paper occurs. Tray spring
pressure may be affected by the type
of paper used or the operating envi-
ronment (under low temperature con-
ditions, no feed of paper tends to
occur. Under high temperature condi-
tions, double feed of paper tends to
occur). Excessive adjustment of tray
spring pressure may exacerbate the
problem. 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 one screw, loosen one hold-
down shaft screw, and detach the paper
feed unit.
Connector (CN814,834,854)
2
Operation
Fixing shaft screw
Paper feed unit
Screw
1-104
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.
3
Weak
Set the tray.
4
3. By-pass paper feed spring pressure adjust-
ment
Screws
Spring
Weak
Spring
mounting hole
a. Adjustment method
Step
Remove the by-pass tray.
1
Remove two screws and detach the bot-
2
tom plate assembly.
Spring
Strong
Bottom plate
Strong
Operation