Ricoh B230 Service Manual page 244

No. Result
Gamma error:
55
Maximum
Gamma error:
56
Minimum
Vk error:
57
Maximum
Vk error:
58
Minimum
Sampling data
error during
59
gamma
correction
B230/B237
Description
displayed.
Gamma is out of
range. 5.0 <
Gamma
Gamma is out of
range.
Gamma < 0.15
Vk is out of range.
150 < Vk
Vk is out of range.
Vk < –150
Not enough data
can be sampled
during the gamma
correction.
4-4
Possible Causes
1. ID sensor
pattern density is
too high.
2. Hardware
defective.
1. ID sensor
pattern density is
too low.
2. Hardware
defective.
1. ID sensor
pattern density is
too low.
2. Hardware
defective.
1. ID sensor
pattern density is
too high.
2. Background dirty
3. Hardware
defective
1. ID sensor
pattern density is
too high or low.
2. Hardware
defective
Action
Same as 53
Same as 53
Replace the toner
supply pump unit.
Same as 53
Same as 53
Same as 53
SM