Konica Minolta Bizhub 162 Service Manual page 503

6. Jam Display
6.3 Solution
6.3.1 Initial Check Items
• When a paper misfeed occurs, first perform the following initial checks.
Does paper meet product specifications?
Is the paper curled, wavy, or damp?
Is a foreign object present along the paper path, or is the
paper path deformed or worn?
Are the Paper Separator Fingers dirty, deformed, or
worn?
Are rolls/rollers dirty, deformed, or worn?
Are the Edge Guide and Trailing Edge Stop at the correct
position to accommodate the paper?
Are the actuators operational and checked for correct
operation?
6.3.2 Duplex Reversal Housing Block
A. Detection Timing
Type
Duplex Reversal • If the Duplex Unit Transfer Sensor does not turn on even when a specified time
Housing Block
B. Action
Duplex Unit Transport Motor (M2/AD)
Duplex Unit Transport Sensor (PC2/AD)
Step Operations
1 Initial checks
2 M2/AD operation check
3 PC2/AD sensor check
4 Replace PWB-A/AD
18
Check Item
elapses after the Exit Sensor turns off.
Relevant Electrical Components
Page
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Field Service Ver. 1.0 Apr. 2005
Replace paper.
Replace paper.
Instruct the user on the correct paper stor-
age procedures.
Clean or change the paper path.
Clean or replace the defective Paper Sepa-
rator Finger.
Clean or replace the defective roll/roller.
Set as necessary.
Correct or replace the defective actuator.
Description
Control Board (PWB-A/AD)
WIRING DIAGRAM
Ref.
Control signal
– –
15 –
13 PWB-A/AD PJ4A/AD-5 (ON)
– –
Action
Location
(Electrical
Components)
–
F~G-7
(AD-504)
C~D-3~4
(AD-504)
–