SHARP SP1898 Technical Report

Date: Jul. 25, 1995

COPIER : SF-2014

1. Measures to improve the SPF guide movement.

1.Model name: SF-2214
SN-1430 (USA only)

No. : SP-1898

1.MEASURES TO IMPROVE THE SPF GUIDE MOVEMENT.

2.MEASURES PREVENTING PS GATE WARPING AND SPF PAPER DELIVERY ROLLER GRINDING.

3.CHANGE IN THE OC HINGE GUIDE TO PREVENT LOOSENE SS AND CHANGE IN THE METAL MOLDS.

4.MEASURES TO PREVENT THE MB WIRE FROM COMI NG LOOSE.

2..General: When the SPF copy paper guide in the SPF unit is in operation, friction sometimes
occurs between the SPF base tray and the SPF copy paper guide. T o alleviate this
problem, the following measures have been taken.

3.Description:

SPF Base tray

2

Added built-up section

Added rib

2-φ6

-0.07

-0.02

SPF Copy paper guide

2-φ2.4

2

2

2

4.Action: Running change from 1995 March production.

SHARP CORPORATION Reprography Division

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Green

C

2. Measures preventing PS gate warping and SPF paper delivery roller grinding.

1.Model name: SF-2214
SN-1430 (USA only)

2.General: Problems of grinding of the F side delivery roller in the SPF paper feeder section and
warping of the PS gate (which occurs when original documents are inserted too
strongly) have occurred. To alleviate these problems the changes in shape described
below have been carried out.

3.Description: SPF delivery roller:

Changed roller diameter: 15.5 mm → 15.3 mm.
Changed roller material: (color: gray) (color: opaque).

Changed shape of the SPF roller movement arm.

A

A

Cross section A-A

3.3 2.9

4.Action: Japanese production: From the start of 1995 April production.
Chinese (SOCC) production: From the start of 1995 May production.
French (SFM) production: From the start of 1995 June production.

3. Change in the OC hinge guide to prevent looseness and change in the metal molds.

1.Model name: SF-2014/21 14/2214
Z-800, SN-1420/1430 (USA only)

2.General: As a measure to prevent the left OC hinge guide from loosely moving after it has been
installed in the optical unit, ribs have been added to the locations shown in the figure
below to increase the strength of the part, enabling it to sustain repeated opening and
closing. In accordance with a request from a portion of the market, ribs have been
added to the right OC hinge guide, to immobilize the OC opening and closing detection
sensor harness.

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