Konica Minolta bizhub 20 Service Manual page 102

■ Error code 8D
Cover is Open
Make sure there is no paper jammed inside the machine and close
the Back Cover, then press Start.
Paper jam near eject tray
<User Check>
• Check if the paper is jammed in the back cover. If jammed, remove it.
Step
Duplex sensor failure
1
2 Main PCB failure
■ Error code 99
Size mismatch DX
Press Job Cancel. Specify the correct paper and load the same
size paper as the Printer driver setting.
Specified paper size is not supported for duplex printing (Duplex)
<User Check>
• Remove the jammed paper, and use the A4 size or letter size paper, and load the same
size paper as the printer driver setting.
Step
1 Main PCB failure
Cause
Cause
3-27
Remedy
Check the sensor performance following
the procedure described in
Operational Check (Function code 32)" in
Chapter 6. If any problem occurs, replace
the relay rear PCB ASSY.
Replace the main PCB ASSY.
Remedy
Replace the main PCB ASSY.
"4.10 Sensor
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