Epson AcuLaser C2600 Service Manual page 171

EPSON AcuLaser C2600/2600
E124: Abnormally high temperature
Error Occurrence/Error Detection Method
The temperatures detected by the three thermistors have exceeded a specified limit
for a prescribed period of time.
Possible Parts Caused the Error
No. Part Name
1 Fuser unit
2 POWER SUPPLY (230 V) / POWER SUPPLY (120 V)
3 BOARD ASSY., MAIN C585 MCU
Check Point
No.
1 Check if the NIP lever is used at the position for envelopes.
Check the Fuser Unit for the followings.
Check if paper is jammed at the Fuser.
2
Check the fuser roller for any scratch or foreign material.
Rotate the green knob on the backside of the fuser unit in order to check if
the spur gear 19 and heat roller turn smoothly.
3 Replace the [Fuser unit].
4 Replace the [POWER SUPPLY].
5 Replace the [BOARD ASSY., MAIN C585 MCU].
Troubleshooting
Reference
page 237
page 319
page 310
Check Point
Troubleshooting According to the Error Message
Diagram
BOARD ASSY.,
MAIN
C585 MCU
gry gry
S24V
5
1
(N.C.)
4
2
/HR_ON
3
3
/HR_SUB
2
4
/HR_MAIN
1
5
plo
AC LIVE
1
(N.C.)
2
HR_LAMP
3
PR_LAMP
4
HARNESS, AC,
FUSER
1
2
3
(N.C.)
4
wht
Vcc_PS_EJ
6 A5
S.GND
7 A4
/PS_EJ
8 A3
TEMP_PR
9 A2
S.GND
10 A1
wht
/FUSE_CUT2
11 B7
/FUSER_SET
12 B6
P.GND
13 B5
TEMP_HR1
14 B4
S.GND
15 B3
TEMP_HR2
16 B2
S.GND
17 B1
HARNESS, MAIN
Revision B
POWER SUPPLY
Relay
Fuser Unit
Fuser HR Thermostat
Fuser HR Heater
1
Fuser PR Thermostat
2 Fuser PR Heater
3
(N.C.)
4
wht
A1
A2
A3
Fuser PR Thermistor
A4
A5
Fuser Sub Board
wht wht
B1 3 Old and New detection fuse
B2 2
Detecting installed status
B3 1
B4 Fuser HR Thermistor
B5
Fuser HR Thermistors
B6
located at the one end
B7
03002001
171