Jitter - Ricoh FT7770 Service Manual

1) Jitter at either 70 to
80 mm or 10 to 20 mm
from the trailing edge.
Tighten the screws securing the upper registration guide.
2)
Does jitter appear at the leading edge of copies?
N
I
Does the interval
copies?
Y N
Readjust the
according to
o Main Drive
o Drum Drive
o Fusing Drive Belt
Clean the scanner guide rods and scanner
apply a small amount of Launa oil to the
dry).
Is the scanner wire tension correct?
Y N
I
Rehook up the tension spring; or replace if stretched.
Adjust the guide roller position so that guide rollers "A" and
"B" touch the scanner guide rod.
of jitter change when making reduced
tension of the following timing belts
the FSM.
Belt
Belt
13-7
30 April, '89
guide rollers; then,
lubricant pad (if