Konica Minolta magicolor 7450 Service Manual page 224

Field Service Ver. 1.0 May 2006
Code
004E Power Supply Cooling Fan
Motor/1's failure to turn
004F Cooling Fan Motor 2's failure to
turn
0094 2nd Image Transfer Roller
Separation
0096 Transfer Belt Separation
0301 Polygon Motor/C failure to turn
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)
0312 Laser malfunction (Magenta)
0313 Laser malfunction (Yellow)
0314 Laser malfunction (Black)
0500 Heating Roller warm-up failure
Item
• The Fan Lock signal remains HIGH for a predetermined
continuous period of time while the Motor remains sta-
tionary.
• The Fan Lock signal remains HIGH for a predetermined
continuous period of time while the Motor remains sta-
tionary.
• 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.
• 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.
• 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.
• 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.
• 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.
14. Service call message
Description
187