Ricoh AD330 Technical Bulletin

RICOH Technical Bulletin PAGE: 1/3

Model: AD1-Duplex (AD330) Date: 1-July-97

No: 34

Subject: Paper jam Prepared by: K.Hattori
From: QAC 2nd Field Information Dept.
Classification:

Troubleshooting
Mechanical
Paper path
Other ( )

Part information
Electrical
Transmit/receive

Action required
Service manual revision
Retrofit information

SYMPTOM

The misfeed location “Z” is displayed and the machine stops.

CAUSE

If the Lower Guide Plate (G6944730) is bent upwards, component lifts up
component of the Inverter Feeler(G6944735).

This moves component of the Inverter Feeler closer to the Photointerrupter
(AW020075). Then, the Inverter Feeler may often vibrate after the paper passes.

This may lead to the Inverter Feeler interfering with the signals from the Photointerrupter.

Figure 1

G694 4735 Inverter Feeler

G694 4730 Lower Guide Plate

RICOH Technical Bulletin PAGE: 2/3

gap

Model: AD1-Duplex (AD330) Date: 1-July-97

No: 34

SOLUTION

The Inverter Feeler normally rests on the Upper Guide Plate if it is free. Replace or
reshape the Lower Guide Plate if you find a gap between the Inverter Feeler and the
Upper Guide Plate, because the uplifted Lower Guide Plate has Iifted up the Feeler.

<SIDE VIEW>

Upper Guide Plate

Inverter Feeler

Inverter Feeler

Upper Guide Plate

Figure 2

ACTIION REQUIRED

Please replace the Lower Guide Plate as described below.

1.Check the gap between the Inverter Feeler and Upper Guide Plate.

2.Remove the Snap Ring .

3.Remove the Upper Guide Plate .

4.Remove the Lower Guide Plate .

5.Attach the new or reformed Lower Guide Plate . (∗ See the next page.)

6.Attach the Upper Guide Plate .

7.Attach the Snap Ring .

RICOH Technical Bulletin PAGE: 3/3

Model: AD1-Duplex (AD330) Date: 1-July-97

No: 34

∗∗ How to modify the Lower Guide Plate.

1. Place the stand on a box-shaped object .

2. Put the center of the Lower Guide Plate face down on the stand.

3. Push both edges gently.
Caution: If you push there too hard, the Lower Guide Plate will bend the other way.

4. Put a scale on the re shaped Lower Guide Plate.

5. Check the gap between the scale and the plate from a to b. If the gap is almost gone,

the plate has been modified correctly.