Ricoh sr750 Technical Bulletin

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echnical Bulletin

PAGE: 1/5

Model:

Subject:

From:

Mojito

SC740 and Jam indicator turns on.

Technical Services Dept., GTS Division

Classification:

Troubleshooting

Mechanical

Paper path

Other ( )

Part information

Electrical

Transmit/receive

Date:

04-Jul-00

Prepared by:

No.:

RA293007

M. Tsuyuki

Action required

Service manual revision

Retrofit information

Some booklet finishers (A763) may exhibit the following problem. Please check the
machine at installation or at the next customer site visit.

SYMPTOM

When making copies in staple mode, an IC on the finisher board shorts and SC740 is
displayed. After the main switch is turn off and on, a jam is indicated.

CAUSE

The cable of the guide plate motor is caught between the guide plate unit and frame. In the
worst case, the cable covering peels off and the +24V line is shorted to ground. These two
factors combine to cause the finisher board to be damaged.

ACTION

[A]

1. Hold up the proof tray and open the top cover [A].

[B]

2. Unhook the upper rear cover [B] and remove it (3 screws).

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echnical Bulletin

PAGE: 2/5

Model:

3. Check to see if the cable [C] is caught.

4. If it is not caught, the finisher is Ok. If it is caught, go on to the next step.

Mojito

Date:

04-Jul-00

NG

No.:

[C]

RA293007

NG

OK

[D]

5. If the cable is caught at area [D], go on to the next step. If not, the finisher is OK.