Printer 4-Color: Low Image Density - Minolta CF2002 Service Manual

(31) Printer 4-Color: low image density

<Troubleshooting Procedure>
Section Step
Paper 1 Paper is damp.
Image 2 Terminal is dirty.
Transfer
Belt Unit
Image 3 Image Transfer Roller is
Transfer installed properly.
Roller Unit
4 Image Transfer Roller is dirty
or scratched.
AIDC Sen- 5 Sensor is dirty.
sor
Gradation 6 "Conv. Value" falls within the
Adjust specified range as checked
(Tech. Rep. through Gradation Adjust.
Mode) Max: 0 ± 100
Highlight = 0 ± 60
Image 7 The problem has been elimi-
Adjust nated through the adjust of
→
PRT Max.
PRT Max
Density
(Tech.
Rep.Mode)
Image 8 The problem has been elimi-
Adjust nated through the adjust of
→
PRT Highlight.
PRT
Highlight
(Tech. Rep.
Mode)
<Typical Faulty Image>
4011T003AA
Check Item
T-108
Result Action
YES Change paper to one just
unwrapped from its package.
Install Paper Dehumidifying
Heater.
YES Clean.
NO Reinstall.
YES Change Image Transfer Roller
Unit.
YES Clean with blower brush.
NO Go to step 10.
NO Go to next step.
NO Go to next step.