SHARP SP1803 Technical Report

Date: Aug. 29, 1994

COPIER : Z-20

1. PERMANENT MEASURES TO PREVENT DROPOUT ON COPIES AND EDGE TRANSFER

2. PARTS CODE DESIGNATIONS FOR TONER CLUTCH SOLENOID AND POLYSLIDER

3. PARTS CHANGES DUE TO PRODUCTION DISCONTINUANCE

MISALIGNMENT
ASSEMBLY PARTS

No. : SP-1803

1. Permanent measures to prevent dropout copies and edge transfer misalignment

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

2.General: A DN mylar and DN holder spacer were mounted onto the DN holder unit, from the first

unit of mass production. This was a provisional measure to prevent dropout copies and
edge transfer misalignment. The shape of the DN holder has now been changed as a
permanent measure. Current and new DN holders are interchangeable.

3.Description:

(Current)

(New)

A

A

1 2

Padding Padding

A'

A'

Padding

3

H1

"H1" marking

A-A

Padding

(Front)

A'-A'

(Back)

New DN holders have a
“H1" marking to distinguish
then from current holders.

SHARP CORPORATION Reprography Division

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Green

C

4.Action: Mid-June 1994 production (Running change)

2. Parts code designations for toner clutch solenoid and polyslider assembly parts

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

2.General: A polyslider was added to the solenoid in the drive unit to prevent abnormal noises

during toner replenishment. The polyslider has now been assembled onto the solenoid
and given a parts code designation.

3.Description: Current New
Toner clutch solenoid (RPLU-0295FCZZ) Toner clutch solenoid (RPLU-0295FCZ1)
With out polyslider With polyslider

New solenoids (with polyslider) and current solenoids
(with polyslider mountings designated as service parts
LX-WZ0186FCZZ) are interchangeable.

Polyslider

4.Action: Mid-June 1994 production

3. Parts changes due to production discontinuance

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

2.General: The photo coupler production used in the main PWB was discontinued. We have

changed it to alternates.

3.Description: The same photo coupler was used for all destinations. However, due to cost factors,
separate parts have now been designated for the 100V and 200V series.

4.Action: July 1994 production, 1st unit.

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