Field Service Ver. 1.0 May 2006
14. Service call message
187
magicolor 7450
T
roubleshooting
004E
Power Supply Cooling Fan
Motor/1’s failure to turn
• The Fan Lock signal remains HIGH for a predetermined
continuous period of time while the Motor remains sta-
tionary.
004F
Cooling Fan Motor 2’s failure to
turn
• The Fan Lock signal remains HIGH for a predetermined
continuous period of time while the Motor remains sta-
tionary.
0094
2nd Image Transfer Roller
Separation
• The 2nd Image Transfer Pressure Position Sensor
doesn’t turn ON (Retracting) even after the lapse of a
given period of time after the 2nd Image Transfer Pres-
sure/Retraction Motor has started rotating during the 2nd
Image Transfer Roller is retracting.
• The 2nd Image Transfer Pressure Position Sensor
doesn’t turn OFF (Pressuring) even after the lapse of a
given period of time after the 2nd Image Transfer Pres-
sure/Retraction Motor has started rotating during the 2nd
Image Transfer Roller is pressuring.
0096
Transfer Belt Separation
• The 1st Image Transfer Pressure/Retraction Position
Sensor doesn't turn ON (Retracting) even after the lapse
of a given period of time after the 1st Image Transfer
Pressure/Retraction Clutch has turned ON during the
Transfer Belt is retracting.
• The 1st Image Transfer Pressure/Retraction Position
Sensor doesn't turn OFF (Pressuring) even after the
lapse of a given period of time after the 1st Image Trans-
fer Pressure/Retraction Clutch has turned ON during the
Transfer Belt is pressuring.
0301
Polygon Motor/C failure to turn
• The Polygon motor fails to turn stably even after the lapse
of a given period of time after activating the Polygon
motor.
• Motor Lock signal detects H for a given period time con-
secutively during the Polygon motor is rotating.
0302
Polygon Motor/M failure to turn
0303
Polygon Motor/Y failure to turn
0304
Polygon Motor/K failure to turn
0311
Laser malfunction (Cyan)
• SOS signal is not detected even after the lapse of a given
period of time after staring the laser output.
• SOS signal is not detected for a given period of time dur-
ing printing or IDC sensor adjustment.
0312
Laser malfunction (Magenta)
0313
Laser malfunction (Yellow)
0314
Laser malfunction (Black)
0500
Heating Roller warm-up failure
• The Heating Roller Thermistor/1 (TH1) and the Heating
Roller Thermistor/2 (TH3) fails to raise a given degree of
temperature even after the lapse of a given period of time
after the Heating Roller Heater lamp/1 (H1) is turned ON.
• The detected temperature of the Heating Roller Ther-
mistor/1 (TH1) is lower for a given level of degree than
one of the Fusing Pressure Roller Thermistor/1 (TH2)
after the Front Door is opened or closed, the Main Power
Switch is turned ON or TROUBLE RESET is imple-
mented.
• The counter value of zero cross signal input is not
updated for a given period of time.
Code
Item
Description
Summary of Contents for magicolor 7450
Page 1: ...SERVICE MANUAL 2006 05 2006 05 Ver 1 0 Ver 1 0 FIELD SERVICE magicolor 7450 magicolor 7450 ...
Page 3: ...ii Blank Page ...
Page 26: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Main Unit magicolor 7450 magicolor 7450 ...
Page 43: ...2 Product specifications Field Service Ver 1 0 May 2006 6 magicolor 7450 General Blank Page ...
Page 288: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Lower Feeder Unit ...
Page 317: ...3 Other Field Service Ver 1 0 May 2006 26 Lower Feeder Unit Maintenance Blank Page ...
Page 328: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Duplex Option ...
Page 333: ...1 Product specifications Field Service Ver 1 0 May 2006 2 Duplex Option General Blank Page ...
Page 345: ...6 Jam Display Field Service Ver 1 0 May 2006 14 Duplex Option Troubleshooting Blank Page ...