Konica Minolta bizhub 4020 Service Manual page 120

Error code Description
111.62 Closed-loop printhead error, off-resonant PI
effort state.
111.63 Timed out on POR sweep.
111.64 Attempted to exceed open loop drive limits.
111.65
111.66 Failed alignment of printhead.
111.67
111.68 Too many fake HSYNCs while aligning
printhead.
111.69
Printhead unit service check
Action
Step 1
Check the printhead unit cables JLSU1
and J6 for proper connection.
Are they properly connected?
Step 2
Inspect the printhead cables and
connectors.
Are they free of damage?
bizhub 4020/3320 Service Manual
Yes
Go to step 2.
Replace the controller board. See
Controller board removal.
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Action
Go to printhead unit service
Go to printhead unit service
Go to printhead unit service
Go to printhead unit service
Go to printhead unit service
Go to printhead unit service
Go to printhead unit service
Go to printhead unit service
No
Reseat the cables.
Replace the printhead. See
printhead unit
check.
check.
check.
check.
check.
check.
check.
check.
removal.