Ricoh M126 User Manual

M126/M127/M128 6-58 SM
6.5.7 FUSER SERVICE CHECK
When toner is partially fused to the media, it is usually caused by low fuser temperature.
The line voltage to the machine must be within the following limits:
 100 V ac-127 V ac for the 110V model machine
 200 V ac-240 V ac for the 220V model machine
 This machine uses a belt fuser and therefore does not have a lamp.
Fuser service check
FRU Action
Fuser power cable
LVPS/HVPS
Fuser
Unplug the machine, and disconnect the fuser cable plug
from the LVPS/HVPS board connector at CN102.
Check for continuity across the fuser by checking across
the connector pins.
 If there is continuity, then check the LVPS/HVPS
(
p.6-59 "LVPS/HVPS Service Check").
 If there is no continuity, then disconnect the fuser
power cable at both ends and check each conductor
for continuity. Replace cable if necessary.
 If the cable tests good, then replace the fuser.
Reconnect the cables, turn the machine on, and at &12,
check for approximately +5Vdc on pin1 and ground on pin
2. If line voltage is incorrect on pin1, then see “Engine
Board Service Check” in “Troubleshooting” for more
information.
Fuser
Disconnect the thermistor cable from J12 on the engine
board.
Measure the resistance across the ends of the thermistor
cable.
Replace the fuser assembly if the resistance is lower than
1K ohm or shorted.
 Resistance measures approximately 400K ohms
when cool and 1K ohms hot.

Ricoh M126 Specifications

General

Brand	Ricoh
Model	M126
Category	Printer
Language	English