Table of Contents
Advertisement
CF-001 ADC Sensor Fail
BSD-ON:CH9.8
ADC Sensor malfunction, abnormality in electrical system, or abnormality in Transfer Belt reflection out-
put has occurred.
•
092-651: ADC Sensor System Fail (Shutdown Fail)
•
092-652: ADC Sensor Fail
Influence
When 092-652Fail occurs, image density control that uses ADC Sensor will not be updated which may
create issues concerning the image density being too dark or too light.092-651Fail discharges images
under the process of image formation and force stop the machine operation when 092-652Fail continu-
ously occurs.Couple copies of print may be printout after releasing Fail by Powering OFF/ON but if the
number of 092-651Fail reaches the prescribed number of time, it will not be able to release by powering
OFF/ON.The following NVM value need to be cleared [0] in order to release. However, if it does not
recover to normal state, the Fail will generate again during usage.
ADC Sensor System Fail
NVM:755-001
Replacement parts list
Possibilit
No.
Component
y
1
MOB ADC Sensor Assembly
H
2
Deve Housing Assenbly
M
3
Drum
M
4
DRIVE PWB
L
5
IBT Belt
L
6
ESS PWB
L
Procedure
NOTE: To prevent light-induced fatigue, cover the Drum with a black sheet when removing the Drum. In
addition, do not touch the Drum surface.
When the exchange display of Drum or Deve Housing Assembly comes out in UI, when the exchange
display doesn't come out after exchanging, it is just as it is. It executes the following operation in turn.
Version 1.1
DC SC2020
Table 1 Table 1
Number of continuous ADC Sensor System Fail
NVM:752-431
Table 2 Table 1
Reason
ADC Sensor malfunction
When the exchange display comes out in UI,
exchange.
When the exchange display comes out in UI,
exchange.
Abnormality in ADC Sensor electrical system.
Abnormality in reflection output due to unclean-
ness, scratch of IBT Belt.
Abnormality in electrical system.
Tools>Admin Setting>Maintenance>Auto Registration
Tools>Admin Setting>Maintenance>Quick Density Adjust (Twice)
Didn't Fail occur?
Y
N
Check to see if the following NVM value is within the range regarding NVM Read/Write in CE Mode.
•
NVM[755-126] (ADC_Vdark) (Range:0-100)
•
NVM[755-127] (ADC_Vcln_All Mean Value) (Range:50-1000)
Are both value within the range?
Y
N
Check the following connections for open circuits, short circuits, and poor contacts.
•
Between MOB ADC Sensor (R-RAD)
•
Between MOB ADC Sensor (R-RAD LOW)
Is the conduction normal?
Y
N
Reconnect the connector. If it does not recover, there is a possibility of abnormality in
electrical system. Replace DRIVE PWB.
Possibility of ADC Sensor malfunction. Replace MOB ADC Assembly.
NOTE: Perform Auto Registration from UI-Diag if MOB ADC Sensor Assembly is replaced.
Pull out the IBT Unit and check the IBT Belt status. Is there any uncleanness or scratch?
Y
N
Possibility of cause may be contamination or scratch of IBT Belt. Replace the IBT Belt.
NOTE: Perform Auto Registration from UI-Diag if IBT Belt is replaced.
Remove the MOB ADC Assembly, check the status of ADC Sensor Detection surface and clean if it
is dirty.
If it is not dirty or does not restore after cleaning, replace the MOB ADC Assembly.
NOTE: Perform Auto Registration from UI-Diag if MOB ADC Sensor Assembly is replaced.
The ending
NOTE: Perform Auto Registration from UI-Diag if MOB ADC Sensor Assembly or IBT Belt is replaced.
05/2014
2-129
J112
and DRIVE PWB
J414
J113
and DRIVE PWB
J414
(PL
18.2)
(PL
6.1)
(PL
(PL
6.1)
2.2.4 Common FIP
Troubleshooting
6.3)
Advertisement
Chapters
Table of Contents
Troubleshooting
