Alert List - Konica Minolta bizhub C250 Service Manual

Field Service Ver. 3.0 Aug. 2006
16.1.1

Alert list

• If an image stabilization or Scanner fault occurs, the corresponding warning code
appears.
Code
S-1 CCD clamp gain adjustment failure • It is detected that the CCD clamp gain adjustment
P-5 IDC Sensor (Front) failure
P-28 IDC Sensor (Back) failure
P-6 Cyan Imaging Unit failure
P-7 Magenta Imaging Unit failure
P-8 Yellow Imaging Unit failure
P-9 Black Imaging Unit failure
P-21 Color Shift Test Pattern failure
P-22 Color Shift Adjust failure
P-26 1st Image Transfer ATVC (K) failure • An abnormal average value is detected during an
P-27 2nd Image Transfer ATVC failure
P-29 1st Image Transfer ATVC (color)
failure
P-30 Color PC Drum Sensor malfunction • The output from the Color PC Drive Main and Sub Sen-
P-31 Black PC Drum Sensor malfunction • The output from the Black PC Drive Main and Sub Sen-
Item
value is faulty.
• All outputs of Sensor photoreceiver section from the
detection point (unprinted surface on the Image Trans-
fer Belt) are 0.5 V or less or 4.3 V or more at output
checking during IDC/Registration Sensor adjustment.
• All outputs of Sensor photoreceiver section from the
detection point (unprinted surface on the Image Trans-
fer Belt) are 1.9 V or less or 4.4 V or more at density
setting during IDC/Registration Sensor adjustment.
• The output of Sensor photoreceiver section from the
detection point (toner pattern on the Image Transfer
Belt) is 1.0 V or less after the adjustment.
• All density readings taken from the density pattern pro-
duced on the Transfer Belt are 0.5 g/m
photoreceiver output) or less during max. density
adjustment (Vg/Vdc adjustment).
• All density readings taken from the density pattern pro-
duced on the Transfer Belt are 4.5 g/m
Photoreceiver output) or more during max. density
adjustment (Vg/Vdc adjustment.)
• The number of points detected in the main scan direc-
tion is more or less than the specified value during
main scan direction registration correction.
• The number of points detected in the Sub Scan Direc-
tion is more or less than the specified value during sub
scan direction registration correction.
• The color shift amount is greater than the specified
range during main scan direction registration correction.
• The color shift amount is greater than the specified
range during sub scan direction registration correction.
• The skew correction amount is greater than the speci-
fied value.
adjustment of the first image transfer ATVC value of
Black.
• An abnormal average value is detected during an
adjustment of the second image transfer ATVC value.
• An abnormal average value is detected during an
adjustment of the first image transfer ATVC value of
color.
sors remains unchanged for a continuous period of
1,000 ms while the Color PC Drum Motor is turning sta-
bly and the Lock signal is active (LOW-0).
sors remains unchanged for a continuous period of
1,000 ms while the Main Motor is turning stably and the
Lock signal is active (LOW-0).
16. Malfunction code
Description
2 (IDC Sensor
(IDC Sensor
2
415