Ricoh C249, Service Manual

Page: 315 / 486

OTHERS
SM 4-11 C264
C26
4
4.4.3 MASTER FEED PROBLEMS
Model Problem Cause Solution
C238 Master delivery
incorrect Master is wrapped
around the platen roller
and the tension roller. Replace the thermal head guide
with a stronger one.
(
MB #MC238012)
C264
C249 Master feed
jam
(D jam) Suction becomes weaker
as pieces of master
enter into the duct and
the vacuum fan. Pull out the master feed tray, and
remove the broken pieces of
master.
(
O/I Troubleshooting - Clearing
Misfeeds)
C249
C238 Double masters
on drum The drum master sensor
gives incorrect detection. Clean the drum master sensor with
a dry cloth or replace the drum
master sensor.
If the situation does not improve,
insert the washer under the sensor.
C264T904.WMF
4.4.4 DRUM PROBLEMS
Model Problem Cause Solution
C249
C238 Ink detection board not
working.
Broken ink detecting
pins.
Make sure SP2-10 (ink detection) is
ON.
Clean the ink detecting pins.
Adjust the ink detection circuit.
(
S/M 5.7.2)
Change the ink detection board.
(
MB #MC238022)
C238
Does not
supply ink.
Ink sticks to the base of
ink detecting pins. Clean the ink detection pins. Then
attach the ink pipe cover. (
MB
#MC238006)
C264
C249
C238 Air is mixing in the ink
pack.
Flush out the air from the ink pack.
Caution: Don’t remove the ink pack.
C264
C249
C238
Ink supply error
Defective ink pump Adjust or replace the ink pump.
(
S/M 3.8.5)
C238 Mylar comes off from
metal and cloth screen. Change the cloth screen. ( MB
#MC238021)
C249
C238
Leaks ink from
end of drum.
The doctor gap in the
drum is too wide. Adjust the doctor gap.
(
S/M 3.8.8)
C249
C238 Drum cannot be
set properly. The bearing of drum
drive part comes off. Attach the spacer.
(
RTB #RC238009, MB
#MC238024)
Washer