Konica Minolta BIZHUB 163 Service Manual page 472

Field Service Ver. 1.0 Apr. 2007
6.3 Solution
6.3.1 Initial check items
• When a paper misfeed occurs, first check the following initial check items.
Does the paper meet product specifications?
Is paper curled, wavy, or damp.
Is a foreign object present along the paper path, or is the
paper path deformed or worn?
Are the 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 found operational when checked for
correct operation?
6.3.2 Duplex reversal housing block
A. Detection timing
Type
Duplex reversal housing
block
B. Action
Transport motor (M1)
Transport sensor (PS2)
Step
1 Initial check items
2 M1 operation check
3 PS2 sensor check
4 Change ADDB
Check Item
• If the duplex unit transport sensor does not turn on even when a speci-
fied time elapses after the exit paper sensor turns off.
Relevant electrical parts
Action
Action
Change the paper.
Change the paper.
Instruct the user in correct paper storage.
Clean or change the paper path.
Clean or change the defective roll/roller.
Set as necessary.
Correct or change the defective actuator.
Description
AD drive board (ADDB)
WIRING DIAGRAM
Control signal
—
ADDB PJ2ADDB-1 to 4
ADDB PJ4ADDB-5 (ON)
—
6. Jam display
Location
(Electrical
component)
—
D-4
D-5
—
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