Konica Minolta bizhub 4020 Service Manual page 65

Sensor (input) static jam service check
Action
Step 1
Check the input sensor area for jammed media fragments.
Is the paper path free of partially fed or jammed media?
Step 2
Check the jam access cover if it is blocking the input
sensor.
Is it blocking the input sensor?
Step 3
Check the input sensor cable for proper connection.
Is it properly connected?
Step 4
POR into the Diagnostics menu and perform a sensor test:
Diagnostics Menu >Base Sensor Test >Input.
Does the sensor state on the control panel display change
when it is toggled?
Step 5
Does the error remain?
Sensor (input) early/late arriving service check
Action
Step 1
Check the paper source.
Is the paper from the MPF?
Step 2
Check the MPF pick roller and separator pad for damage
and contamination.
Are they free of damage and contamination?
bizhub 4020/3320 Service Manual
Yes
Go to step 2.
Replace the jam access
cover. See
cover
Go to step 4.
Go to step 5.
Contact the next level of
support.
Yes
Go to step 2.
Go to step 3.
- 64 -
No
Clear the paper path of
any media fragments.
Go to step 3.
Jam access
removal.
Reseat the cable.
Replace the input
sensor. See
sensor and input sensor
removal.
The problem is solved.
No
Go to step 5.
Replace the MPF pick
roller and separator pad.
See
removal
pad
Duplex
MPF pick roller
and Separator
removal.