P31-22 to P79-22,

P31-24 to P79-24,

P31-26 to P79-26,

P31-28 to P79-28, and

P31-32 to P79-32.

Is there continuity on each?

No: Replace wire harness W46, then turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

20 Check for continuity to ground:

P31-20,

P31-22,

P31-26, and

P31-32.

Is there continuity to ground on any?

No: Replace the disk drive assembly, then turn to TAG 002: Check & Problem Resolution.

Yes: Replace wire harness W46.

21 Is error code 130, 131, 133, or 134 displayed?

No: Continue.

Yes: Replace the PCL board, then turn to TAG 002: Check & Problem Resolution.

22 Can the printer run test prints?

No: Continue.

Yes: Replace the disk drive assembly. If this resolves the problem, turn to TAG 002: Check & Problem Resolution. If this does not resolve the problem, replace the IGS board, then turn to TAG 002: Check & Problem Resolution.

23 Turn the printer off and unplug the power cord.

Disconnect J/P31 and J/P79.

Check P31-34 to P79-34 for continuity to ground.

Is there continuity?

No: Replace the disk drive assembly. If this resolves the problem, turn to TAG 002: Check & Problem Resolution. If this does not resolve the problem, replace the IGS board, then turn to TAG 002: Check & Problem Resolution.

Yes: Replace wire harness W46, then turn to TAG 002: Check & Problem Resolution.

Troubleshooting Analysis Guide (TAGs)

3-107