Service manual

ADJUSTMENT
2-104
2 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 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
3. By-pass paper feed spring pressure adjustment
a. Adjustment method
Step Operation
1
Draw out the tray.
2
Remove one screw, loosen one hold-
down shaft screw, and detach the paper
feed unit.
Connector (CN814,834,854)
Fixing shaft screw
Paper feed unit
Screw
3
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
Set the tray.
Step Operation
1
Remove the by-pass tray.
2
Remove two screws and detach the bot-
tom plate assembly.
Spring
Strong
Weak
Screws
Bottom plate
Spring
Spring
mounting hole
Weak
Strong