SHARP sp1961 Technical Report

Date: Dec. 5, 1995

COPIER : SF-2116

No. : SP-1961

MEASURES CARRIED OUT IN THE OPTICAL UNIT
TO IMPROV E PE RFOR M A NCE.

1.Model name: SF-2116/ 2118/1016/1018.

2.General: The parts changes and additions described below have been carried out to improve

performance in the optical unit.

3.Description: (1) Measure to prevent bushing disengagement during lens edging operations.

Added screw (M3 x 6).

Added busing washer. Zoom base (P/G ).

Changed bearing (P/G ).

6 -49

4.5 Drive gear.

(2) Measure to prevent dislocation of the dark box cover due to vibrations or bending of

the boxes during shipping.

Changed (only one location).

8 -10

(3) A change in the ring stage screw (P/G ) has been carried out to prevent the

8 -24

variable magnification cam drive gear from coming in contact with the sensor and
bearing holder.

SHARP CORPORATION Reprography Division

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Green

C

(4) Measure to prevent copy warping caused by factors such as bending of the boxes

during shipping.

Added serrated toothed washer.

Changed polyslider.

Collar.

4.5 Mirror holder.

Adjustment screw.

(5) Measure to prevent the lens mylar from slipping out.

.

Discontinued lens cushion (P/G ).

.

Discontinued shield sheet (P/G ).

Left and right standards
(zoom base end section
and mylar bend section).

Vertical standard.
Optical base plate.

Zoom base mylar.

Zoom base.

Added zoom base mylar.

8 -34

8 -35

Lens upper sheet
(changed shape).

Zoom base.

Lens.

4.Action: (1) → From 1995 mid-July production.
(2) → From 1995 mid-August production.
(3),(5) → Running change from 1995 mid-September production.
(4) → Running change from 1995 mid-August production.

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