The control panel does not work.

Step

Possible cause

Check

Result

Remedy

 

 

 

 

 

1

Key sticking

Is there a key on the

Yes

Clean up the panel cover,

 

 

control panel stuck?

 

or remove the burrs from

 

 

 

 

panel cover and panel

 

 

 

 

keys.

2

Connection

Are the main PCB and

No

Reconnect the connector

 

between main

control panel PCB

 

properly.

 

PCB and control

connected properly?

 

 

 

panel PCB

 

 

 

3

Harness between

Is the harness damaged?

Yes

Replace the harness with

 

main PCB and

 

 

a normal one.

 

control panel PCB

 

 

 

4

Rubber Key

Is the problem solved

Yes

Replace the rubber Key.

 

 

after replacing the rubber

 

 

 

 

key?

 

 

5

Control panel

Is the problem solved

Yes

Replace the control panel

 

PCB

after replacing the control

 

PCB.

 

 

panel PCB?

 

 

6

Main PCB

Is the problem solved

Yes

Replace the main PCB

 

 

after replacing the main

 

ASSY.

 

 

PCB ASSY?

 

 

Printing from Macintosh applications fails.

User Check

-Check that the printer driver which, is supplied with the product, is installed in Library/ Printers, and that the print queue is created.

-Check the connecting end on the printer browser. It must be matched with the connecting end which is actually connected.

Step

Possible cause

Check

Result

Remedy

 

 

 

 

 

1

Failure inside the

Does the machine print

No

Identify the error type, and

 

machine

test pattern?

 

then refer to the specified

 

 

(Check it following the

 

section of this chapter.

 

 

procedure described in

 

 

 

 

“Maintenance mode 09”.)

 

 

 

 

 

 

 

2

Breakage of main

Does the machine make

No

Replace the main PCB

 

PCB

a print using a correct PC

 

ASSY.

 

 

and a USB cable?

 

 

1-65

Confidential