Ricoh A66 - Page 82

The following table shows the error codes and their possible causes.
Code No.
Potential sensor ID sensor Development unit Drum unit Main charge corona unit High voltage power supply board LD Electrical noise Short waitting time Humidity and temperature sensor
80
V
SG
_ave Error

∆

∆∆∆

81
V
SG
_ptn Error

∆

∆∆∆

85
Vmin (color) difference
Error

∆

∆∆∆

90
Development potential
calibration error

91
V
D
error at home position
∆

∆∆∆

92
V
G
error

∆

∆

93
12-step pattern error

∆∆

94
Development
γ
calibration error

∆∆∆

95
V
min
error

∆
∆
∆∆

96
V
R
error
∆

∆∆

∆

99
Others
∆∆∆∆∆∆∆∆∆

 :
Most probable cause
 :
Probable cause
∆
:
Possible cause

: No Relation
Rev. 1/97
Error
Cause
Detailed
Section
Descriptions
PROCESS CONTROL
SM 2-13 A166/A187/A189