Ricoh Aficio MP C2030, Service Manual

Page: 499 / 1171

Process Control Error Conditions
SM Appendix 5-3 D037/D038/D040/D041
Appe
ndix:
Process
Con
trol Erro
r
Conditio
n
s
No. Result Description Possible Causes/Action
1. Replace the development unit.
2. Replace the BCU board.
53
ID sensor
coefficient
(K5) detection
error
Not enough data can
be sampled.
ƒ Solid image is not sufficient density:
1. Retry the process control.
2. Replace the ID sensors.
3. Replace the BCU board.
ƒ Solid image is O.K.
1. Replace the ID sensors.
2. Replace the BCU board.
ƒ ID sensor is dirty:
1. Clean the ID sensors.
2. Retry the process control.
54
ID sensor
coefficient
(K5)
maximum/
minimum error
When the K5 is more
than the value of
SP3-362-003 or less
than the value of
SP3-362-004, the
error 54 is displayed.
ƒ ID sensor pattern density is too high
or low.
ƒ ID sensor or shutter is defective.
Same as 53
55
Gamma error:
Maximum
Gamma is out of
range. 5.0 < Gamma
ƒ ID sensor pattern density is too high.
ƒ Hardware defective.
Same as 53
56
Gamma error:
Minimum
Gamma is out of
range.
Gamma < 0.15
ƒ ID sensor pattern density is too low.
ƒ
Hardware defective.
1. Same as 53
2. Replace the toner hopper unit.
57
Vk error:
Maximum
Vk is out of range.
150 < Vk
ƒ ID sensor pattern density is too low.
ƒ
Hardware defective.
Same as 53
58
Vk error:
Minimum
Vk is out of range.
Vk < –150
ƒ ID sensor pattern density is too high.
ƒ Background dirty
ƒ Hardware defective