Diagnostic Information
2-19
4048–00x
Engine Circuitry Failure (Controller Card)
This error indicates a failure in the engine circuitry portion of the
controller card.
Ready/Data
Press Continue
Toner Low
Load/
Remove Paper
Paper Jam
Error
Ready/Data
Press Continue
Toner Low
Load/
Remove Paper
Paper Jam
Error
Primary Code
Secondary Code
Tertiary Codes
Ready/Data
Press Continue
Toner Low
Load/
Remove Paper
Paper Jam
Error
Delay line calibration failure (949).
Pel clock check failure (948).
(947)
• PQET RAM test incomplete.
• PQET RAM test did not complete.
• PQET RAM test failed MARCH0.
• PQET RAM test failed MARCH1.
• PQET RAM test busy failure.
Summary of Contents for T420
Page 6: ...vi Service Manual 4048 00x ...
Page 14: ...xiv Service Manual 4048 00x Japanese Laser Notice Chinese Laser Notice ...
Page 15: ...Laser Notices xv 4048 00x Korean Laser Notice ...
Page 16: ...xvi Service Manual 4048 00x ...
Page 21: ...Safety Information xxi 4048 00x ...
Page 83: ...Diagnostic Information 2 47 4048 00x ...
Page 102: ...3 4 Service Manual 4048 00x Printer Settings Configuration ...
Page 103: ...Diagnostic Aids 3 5 4048 00x Printer Diagnostics ...
Page 110: ...4 4 Service Manual 4048 00x P N 56P0633 P N 56P0637 ...
Page 115: ...Repair Information 4 9 4048 00x 5 Remove the duct assembly in the top cover ...
Page 151: ...Repair Information 4 45 4048 00x ...
Page 166: ...5 2 Service Manual 4048 00x Cables 3 7 13 5 16 9 15 2 10 6 4 8 1 11 14 12 11 5 ...
Page 168: ...5 4 Service Manual 4048 00x Cables continued 1 2 3 4 5 6 7 8 9 10 11 ...
Page 170: ...5 6 Service Manual 4048 00x Sensors 6 1 2 7 3 4 5 8 ...
Page 178: ...6 2 Service Manual 4048 00x ...
Page 180: ...7 2 Service Manual 4048 00x Assembly 1 Covers 2 9 1 3 4 5 10 8 6 7 ...
Page 182: ...7 4 Service Manual 4048 00x Assembly 2 Multipurpose Feeder MPF 1 3 4 5 2 ...
Page 184: ...7 6 Service Manual 4048 00x Assembly 3 Charging 4 5 3 2 1 6 2 3 7 ...
Page 186: ...7 8 Service Manual 4048 00x Assembly 4 Electronics and Cables 1 2 3 4 5 6 7 8 9 10 11 ...
Page 192: ...7 14 Service Manual 4048 00x Assembly 5 Paper Feed 1 2 5 6 7 8 3 4 14 15 17 10 9 11 12 13 16 ...
Page 194: ...7 16 Service Manual 4048 00x Assembly 6 Frame 1 2 3 9 8 6 5 4 4 7 10 11 12 4 4 8 ...
Page 196: ...7 18 Service Manual 4048 00x Assembly 7 Fuser 1 2 3 4 ...
Page 198: ...7 20 Service Manual 4048 00x Assembly 8 Sensors 6 1 2 7 3 4 5 8 ...
Page 200: ...7 22 Service Manual 4048 00x Assembly 9 Options 1 2 3 4 ...