Canon imagePRESS 1135 Series Service Manual page 1154

■ SENS-ADJ
COPIER> ADJUST> SENS-ADJ
CIS-LV Adj of paper detect threshold VL by CIS
Lv.2 Details To adjust the sensitivity threshold value of CIS that detects paper
dust that piles up in the paper feeding path substrate.
When CIS detects paper dust, paper dust cleaning massage will
appear. If CIS detection sensitivity is low, the massage will not
appear even if the paper dust is heavily piled up. Then the side
registration malfunction caused by piling paper dust might occur.
If the value is increased by 1, the value threshold of the detection
sensitivity will increase by 7.8125 mV (180-367 mV).
The smaller the value is, the detection sensitivity will increase and
paper dust cleaning massage will appear frequently.
Use case When the failure of side registration due to paper dust occurs.
Adj/set/operate method Enter the setting value and press OK key.
Display/adjust/set range 0 to 24
Unit 7.8125 mV
8
Service Mode > COPIER > ADJUST (Adjustment Mode) > EXP-LED
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8 Service Mode > COPIER > ADJUST (Adjustment Mode) > EXP-LED
■ EXP-LED
COPIER> ADJUST> EXP-LED
PR-EXP Current adj of pre-exposure LED1
Lv.2 Details To make a fine adjustment of exposure amount by changing the
current value of pre-exposure LED1.
When ghost occurs, increase the value by 10 mA unit and check
every time.
As the value is increased by 1, the current is increased by 1 mA.
Use case When the exposure amount is decreased due to the defect of pre-
exposure LED or toner splash dirt etc and the ghost image occurs.
Display/adjust/set range 110 to 170
Unit 1 mA
Appropriate target value 110 to 170
Default value 140
PR-EXP2 Current adj of pre-exposure LED2
Lv.2 Details To make a fine adjustment of exposure amount by changing the
current value of pre-exposure LED2.
When ghost occurs, increase the value by 10 mA unit and check
every time.
As the value is increased by 1, the current is increased by 1 mA.
Use case When the exposure amount is decreased due to the defect of pre-
exposure LED or toner splash dirt etc and the ghost image occurs.
Display/adjust/set range 40 to 80
Unit 1 mA
Appropriate target value 40 to 80
Default value 60
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