Diagnostics By The Diagnostic Commander; Overview; Method Of Printing Test Prints - Epson AcuLaser C8500 Service Manual

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EPSON AcuLaser C8500

4.1 Diagnostics by the Diagnostic

This printer, AcuLaser C8500 can perform a test print by using the off-

line CONTROLLER PWB.

Test print using the jumper setting on MCU PWB (DIP SW):

See Section 4.1.2 "Method of Printing Test Prints".

Test print using the diag board DIP switch setting:

See Section 4.2.1.3 "Overview of the DIAG. PWB".

1. Remove the RIGHT COVER ASSY.

2. Remove the CONTROLLER PWB.

W A R N I N G

Do not touch conductive parts and during FIRMWARE

parts in the following procedures.

3. Set paper and turn the power ON.

NOTE: When a tool, such as a mini minus screwdriver, is used, the rest

of the changing Dip-Switch process can be done easily.

NOTE: As for entering the READY mode, confirm that continuous

lighting of H/R HEATER and P/R HEATER became space fault

fire with the next process from the gap in the print outlet of

4. Turn on Dip-Switch (S1 : It is at the back of the working hole of

CONT.CHASSIS ASSY.) for the test print on MCU PWB in the top of

the interface connector (P11) of MCUPWB after entering the

5. Start a print movement by turning on Dip-Switch (S1). (continuous

print is done.)

Troubleshooting