3-90 Phaser 6280 Color Laser Printer Service Manual
Error Messages and Codes
12 1.Replace the Tray 3 Feeder Assembly
(page 8-107).
2.Does the error still occur?
Complete. Replace the
MCU Board
(
page 8-86).
13 1.Check the wiring harness
connectors P/J419, P/J281, and P/
J28.
2.Are the connectors securely
connected?
Go to step 14. Reconnect the
connectors.
Go to step 14.
14 Check the Optional Feeder Harness for
continuity.
1.Disconnect P/J419 from the
Optional Feeder Board and P/J281
from the Right Side Harness.
2.Check continuity between P/J419
<=> P/J281.
Go to step 15. Replace the
Optional Sheet
Feeder
(
page 8-100).
15 Check the Right Side Harness for
continuity.
1.Disconnect P/J281 from the Feeder
Unit Harness and P/J28 from the
MCU Board.
2.Check continuity between P/J281
<=> P/J28.
Go to step 16. Replace the
Right Side
Harness.
16 Check the Optional Feeder Board
signal.
1.Disconnect P/J28 on the MCU
Board.
2.Is there +3.3 V across ground <=>
J28-7 pin?
Replace the Tray
3 Feeder
Assembly
(
page 8-107).
Replace the
MCU Board
(
page 8-86).
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No
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