Errors - Konica Minolta bizhub 4020 Service Manual

Action
Step 3
Check the main drive motor for proper operation:
1. Remove the main drive gearbox.
Note: Do not disconnect the main drive gearbox cable.
2. POR into the Diagnostics menu and perform a feed test:
Diagnostics Menu >Input Tray Tests >Feed Test >
Select any input source
3. Check if the main drive motor rotates when doing the feed
test.
Does it rotate when doing the feed test?
4.6.6

146 errors

146 error messages
Error code Description
146.00 Autocomp Pick/Lift Motor—Encoder Never
Detected in tray 1.
Tray 1 pick/lift motor gearbox service check
Action
Step 1
1. Remove Tray 1.
2. Check the lift plate and gears for proper operation by
moving the metal plate.
Do the lift plate and gears move freely, and are they free of
wear or damage?
bizhub 4020/3320 Service Manual
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Yes No
Replace the controller Replace the main drive
board. See Controller gearbox. See
board removal. gearbox
Action
Go to Tray 1 pick/lift motor gearbox service
Yes No
Go to step 2. Replace the tray insert.
Main drive
removal.
check.