SHARP SP1632 Technical Report

Date: Oct. 14, 1993

COPIER : SF-2035

1.CHANGES IN MATERI ALS TO IMPROVE THE TAKE- UP
DRIVING SHAFT DURING RETURN

2.CHANGES TO THE MANUAL P APER FEED SECTI ON
TO IMPROVE PRODUCTIVITY

No. : SP-1632

1.Changes in materials to improve the take-up driving shaft during return function

1.Model name: SF-2035

2.General: During mirror-based return, the home position sensor malfunctioned. This caused the

gear cogs in the take-up driving shaft to break under shock leading to unwanted
movements.
A material change was made to strengthen the take-up driving shaft gear and to
prevent further damages.

3.Reason: Strengthening of the materials used for the take-up driving shaft gear to prevent gear
damages.

4.Description: Materials used for the gear will be changed from polyphane to 12 nylon.

Material change for take-up driving shaft gear
NGERH0944FCZZ (polyphane)

NGERH0944FCZ1 (12 nylon)

5.Action: For production : Normal replacement as of mid-September 1993.

SHARP CORPORATION Reprography Division

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2. Changes to the manual paper feed to improve productivity .

1.Model name: SF-2035 / 2037 / 2022 / 2018

2.General: Changes to the pressure welded shaft of the manual multi-unit and the manual mylar;

and discontinuance of one wire hand in the suspension harness were made due to the
following reasons.

3.Reason: Improvement of productivity

4.Description: 1. Structural changes were made to the pressure welded shaft as shown in the

illustration. Only one E ring will be used as a stopper instead of two.

2. Structural changes were made to the manual mylar to improve productivity and

rebound during manual paper supply. (3F-2 will not be used.)

3. Discontinuance of the central wire hand in the manual multi-suspension harness

Discontinued E ring

Changes to the
pressure welded shaft

Old (E ring stoppers
in two places)

Changes to manual mylar
(SF-2018 does not have a manual mylar)

Double-sided tape

Discontinuance of additional hand

New (Hender
processed, single
E ring stopper)

5.Action: For production: Normal replacement from October 1993.

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