2-20
4227-100
Operator Panel Service Check
Note: Press any button except Start/Stop, Load/Unload, or
FormFeed. If “Operator Panel Disabled” is displayed, unlock the
operator panel by powering up with the Micro
↑
and Micro
↓
keys
pressed. Use the same procedure to re-lock the panel after service
is complete.
FRU
Action
1
Operator Panel
If there is a 631 Display RAM Error, replace the
operator panel.
If there is a 63B Key Scan Error, one or more
buttons are being detected as pressed during
power-up.
Replace the operator panel.
2
Printer Cable
Operator Panel
During power-up, all LEDs and all LCD pels
should turn on briefly.
Enter the Service Menu and perform the
Button Test. If there are missing or extra pels
displayed, or if any of these tests fail, check the
condition and continuity of the operator panel
cable.
Replace the cable or the operator panel.
3
Cover Switch
If Cover Open is displayed, check the cover
switch.
Jumper the cover switch connector on the
operator panel. If Cover Open is displayed,
check the condition and continuity of the
operator panel cable. Replace the cable or the
operator panel.
4
Main Logic Board
If the symptom has not changed, replace the
main logic board.
Summary of Contents for 4227-100
Page 10: ...x 4227 100 Korean Safety Information...
Page 101: ...Connector Locations 5 1 4227 100 5 Connector Locations...
Page 105: ...Connector Locations 5 5 4227 100 Component Location Illustrations...
Page 106: ...5 6 4227 100 Component Location Illustrations Continued...
Page 114: ...5 14 4227 100 Connector Block Diagram...
Page 119: ...Parts Catalog 7 2 Assembly 1 Covers and Operator Panel...
Page 121: ...Parts Catalog 7 4 Assembly 2 Paper Feed...
Page 123: ...Parts Catalog 7 6 Assembly 3 Carrier...
Page 125: ...Parts Catalog 7 8 Assembly 4 Base and Electronics...
Page 127: ...Parts Catalog 7 10 Assembly 5 ASF Side Frame Covers...
Page 129: ...Parts Catalog 7 12 Assembly 6 ASF Roller Support...
Page 131: ...Parts Catalog 7 14 Assembly 7 Tractor 2 Option...