E020 - Canon imagePRESS C7000VP Series Trouble Shooting Information

1.26 E020

 E020-0x81
Error Description: Lower limit error in light intensity on drum base (reflecting light intensity from
the drum surface)
* COPIER > Display > DENS > P-B-P-Y/M/C/K is less than 150.
Cause of occurrence (Highly possible):
Cause of occurrence (Low possible):
 E020-0x82
Error Description: Lower limit error in current passed to the sensor while the patch sensor LED
is off
* COPIER > Display > DENS > P-D-P-Y/M/C/K is 30 or less.
Cause of occurrence (Highly possible):
 E020-0x84
Error Description: Fault at sampling drum base
* A difference between the values in service mode > COPIER > Display > DENS >
P-B-P-Y/M/C/K and P-D-P-Y/M/C/K is 30 or less.
Cause of occurrence (Highly possible):
Cause of occurrence (Low possible):
 E020-0x85
Error Description: Fault at sampling 1 in patch image
* A difference between the values in service mode > COPIER > Display > DENS >
DENS-S-Y/M/C/K and P-D-P-Y/M/C/K is 30 or less.
Cause of occurrence (Highly possible):
Cause of occurrence (Low possible):
 E020-0x86
Error Description: Fault at sampling 2 in patch image
* A difference between the values in service mode > COPIER > Display > DENS >
DENS-S-Y/M/C/K and P-B-P-Y/M/C/K is 30 or less.
Cause of occurrence (Highly possible):
Cause of occurrence (Low possible):
Soil on the ATR sensor [*1]
Faulty pressure for developing assembly
Broken wire of ATR sensor
Damaged ATR sensor
Malfunction of ATR patch detection shutter
Broken wire of ATR sensor
Damaged ATR sensor
Soil on the ATR sensor [*1]
Faulty pressure for developing assembly
Broken wire of ATR sensor
Damaged ATR sensor
Malfunction of ATR patch detection shutter
Soil on the ATR sensor [*1]
Image density is too high.
Faulty pressure for developing assembly
Broken wire of ATR sensor
Damaged ATR sensor
Malfunction of ATR patch detection shutter
Image density is too low. [*2]
Soil on the ATR sensor
Faulty pressure for developing assembly
Broken wire of ATR sensor
Damaged ATR sensor
Malfunction of ATR patch detection shutter
Trouble Shooting Information for C7000VP series
Page 26
Rev. 2.0
2010/09/17