SHARP SP1760 Technical Report

Date: Jun. 16, 1994

COPIER : Z-20

1.PREVENTION OF TRANSFER ELE CTRODE HOLDER DEFORMATION

2.PREVENTION OF PAPER SUPPLY JAM AND DOUBLE FEEDING

3.IMPROVEMENT OF HALF TONE STRIPES

4.IMPROVEMENT OF WHITE STRIPED IMAGES

1. Prevention of transfer electrode holder deformation

1.Model name: Z-20, 25, 27

2.General: The shape of the transfer electrode holder T has been changed. This is to prevent the

holder from bending from torque when securing the transfer electrode holder T.

No. : SP-1760

3.Description: <Temporary measure> Mass production, 1st lot only (November 1993 production)
Enforcement of three spacer mountings.

Spacer Spacer Spacer

<Permanent measure> From December 1993 production agram

Addition of ribs in the six positions shown below.

Rib PRib P Rib PRib P Rib PRib P

Current and new parts are interchangeable. Parts code remain unchanged.

4.Action: Mass production, 1st unit.

SHARP CORPORATION Reprography Division

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2. Prevention of paper supply JAM and double feeding

1.Model name: Z-23, 25, 27

2.General: The surface shape of the paper pass for the pressure holder has been changed. This is

to prevent paper supply jams and double feeding in the multi-paper supply unit.

3.Description:

(Current)

Changed surface shape

Addition of “HI” engraving on the
back surface of new parts.

(New)

As temporary measures, separate parts (PH guide) were adhered to the pressure
holder. (From mass production, 1st unit) As permanent measures, the mold has been
changed. (From February 1994 production)

Current and new parts are interchangeable. Parts code remain unchanged.

4.Action: Mass production, 1st unit.

3. Improvement of halftone stripes

1.Model name: Z-20, 23, 25, 27

2.General: The reflective mylar 2 in the light source unit has been replaced with reflective plates 2

(aluminum). This is to soften the halftone stripes for more uniformity in halftone copies.

3.Description: Current New

Reflective mylar (t = 0.05mm mylar) Reflective plate 2 (t = 0.5mm aluminum plate)

4.Action: From mid-February 1994 production

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