Ricoh A089 Technical Bulletin FT400I

Technical Bulletin No. RTB-002

SUBJECT: Paper Jam DATE: Oct. 15 ’93

PAGE: 1 of 1

PREPARED BY: Shun Satoh
CHECKED BY: S. Hamano

CLASSIFICATION:

Action Required
Troubleshooting
Retrofit Information

Symptom:

1) High frequency of misfeeds (no feed from the paper tray), or paper jams in the
separation area and the fuser exit area.

2) Double sheet or shingle feed.

3) Noise when paper is being fed.

Cause:

Paper rising too high over the pick-up roller (all three feed stations). The initial paper lift
timing (when the paper cassette is inserted) is normal, however the subsequent lifts are
too long in duration - the lift motor does not turn off quickly enough. This may result in no
paper feed or in multiple sheets (stack or paper) being fed to the feed and separation
rollers and inconsistent paper separation or feed.

Revision of service manual
Information only
Other

FROM: Technical Support Department

MODEL: FT400i

Solution:

Replace the copier main ROM with A0895129.

Technical Bulletin No. RTB-003

SUBJECT: Hot Roller Damage - Rotation lines DATE: Oct. 15 ’93

PAGE: 1 of 1

PREPARED BY: Shun Satoh
CHECKED BY: S. Hamano

CLASSIFICATION:

Action Required
Troubleshooting
Retrofit Information

Symptom:

Rotation lines or gouges on the hot roller that align with the position of the stripper pawls.

Cause:

When removing fuser unit jams, the customer may accidentally cause the stripper pawl
springs to pop off its metal anchor. Then, the top end of the stripper pawl might damage
the hot roller.

Revision of service manual
Information only
Other

FROM: Technical Support Department

MODEL: FT400i

FT500i

Solution:

1) To prevent the spring from popping off, the tab has been set at a 90 degree angle.

2) A stripper pawl stopper plate has also been implemented to limit the pawl movement
towards the hot roller even if the spring does come off. The new stripper pawls stopper
plate is P/N A0894460.

Technical Bulletin No. RTB-004

REVISED ON June 15, 94

SUBJECT: Abnormal Hot Roller Worn Out DATE: Oct. 15 ’93

PAGE: 1 of 1

PREPARED BY: Shun Satoh
CHECKED BY: S. Hamano

CLASSIFICATION:

Action Required
Troubleshooting
Retrofit Information

Symptom:
Rotational wear or peeling of the hot roller surface prior to achieving the projected roller

yield of 120,000 copies.
Cause:

1) Fusing oil does not supply to the hot roller.

2) Paper separation jams from the hot roller.

3) The pressure of the oil blade might not be even or equal on and across the hot roller.

Solution:

Revision of service manual
Information only
Other

FROM: Technical Support Department

MODEL: FT400i

FT500i

1) Confirm proper positioning of the oil supply tube [A] in the oil supply tank. The hose
must be positioned in the same recess in the oil tank as the oil end sensor [B].
Improper hose positioning away from the sensor will result in no oil being pumped
because the sensor detects oil in its recess when the other areas of the tank are empty.

[B]

No Good

[B] [A]

Good

2) Adjust the leading edge registration from -2 +/- 2 mm (factory setting) to -4 +/- 2 mm by
using SP mode 4-930. The additional 2 mm of erase (if possible - base it on customer
application) will further ensure proper separation of the paper from the hot roller.

[A]

3) The oil blade and the bracket were assembled at the factory to apply even pressure to
the hot roller. The new part number for this assembly is A1084017.

Technical Bulletin No. RTB-005

SUBJECT: Separation Jam DATE: Oct. 15 ’93

PAGE: 1 of 1

PREPARED BY: Shun Satoh
CHECKED BY: S. Hamano

CLASSIFICATION:

Action Required
Troubleshooting
Retrofit Information

Symptom:

1) Jamming in the separation roller area.

2) Rotational groove in the separation roller

Cause:

1) Lower turn belt pulley positioned towards the front of the separation roller resulting in
the edge of the turn belt contacting the roller surface and creating a groove.

2) Flat spots in the separation roller due to manufacturing defects.

Revision of service manual
Information only
Other

FROM: Technical Support Department

MODEL: FT400i

FT500i

Solution:

1) The spring that positions the pulley has been changed to a smaller one to ensure a flat
contact of the turn belt on the separation roller. The purpose of this spring is to prevent
the trailing edge of A3 paper from contacting the cleaning unit casing. This could result
in smear or smudge marks. The new part number of this spring is AA063267.

2) The separation roller is changed to one already used for other models. The new part
number is AF021006.

Technical Bulletin No. RTB-006

SUBJECT: Multiple feeding from the first feed station DATE: Oct.15 ’93

PAGE: 1 of 1

PREPARED BY: Shun Satoh
CHECKED BY: S. Hamano

CLASSIFICATION:

Action Required
Troubleshooting
Retrofit Information

Symptom:

Multiple feeding from the first feed station

Cause:

The pressure between the feed roller and the separation roller is not enough even if the
spring hook position is the right side hook.

Solution:

Revision of service manual
Information only
Other

FROM: Technical Support Department

MODEL: FT400i

FT500i

1) Cut three turns of the separation roller tension spring, and hook it to the center of the
spring hook. If necessary change the spring position to the right or left hook.

2) Add the additional spring hook bracket above the current hook bracket to increase
tolerance on the mass-production units.