SHARP SP1729 Technical Report

Date: Apr. 20, 1994

COPIER : Z-20 SERIES

1. MEASURES TO REDUCE P APER SUPPLY NOISE

2. CHANGES TO POWER SUPPLY BOARD RESISTORS TO
IMPROVE PRODUCTIVITY

3. CORRECTIONS TO TECHNICAL REPORT SP-1705

1. Measures to reduce paper supply noise

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

2.General: A molt has been added to r educe noise during paper supply calling.

No. : SP-1729

3.Description: A noise reduction molt has been added to the pressure holder attachment in cabinet
bottom B.

Noise reduct i on m ol t PMLT-0939FCZZ

Noise reduction molt

Bottom cabinet B
<Lower section>

Attachment for
pressure board holder

4.Action: From first unit of October 1993 production.

SHARP CORPORATION Reprography Division

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Green

C

2. Changes to power supply board resistors

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

2.General: The shape of the resistance lead has been changed to improve productivity. (The

self-supporting acidic metal resistor does not support itself and adheres to the board as
shown in figure b. A spacer or similar tool was inserted between the board and resistor
during installation and was found to be very inefficient.)

3.Description: There is no problem with the resistors adhering to the board. Therefore, only the
resistor leads have been changed to a straight type.

Old

Resistor VRS-RE3LA101J (Q'ty: 2)

a. Design

(R113.114)

VRS-HT3LA101J (Q'ty: 2)

New

b. Old

C. New

4.Action: From May 1994 production. However, resistors up to the April 1994 production lot will
be mixed as shown in figures a and b.

3. Corrections to T echnical Report SP-1705

1.Model name: Z-20, 25

2.General: There was a misprint and omission to the changes listed for “Item 6 OR cover” on page

3 of Technical Report issue number SP-1705. Please make the following changes.

3.Description: (Misprint)

(Error)

OR cover Urban gray GCOVH0215FCZZ → GCOVH0215FCZ1

↓

(Correction)

OR cover Frosty gray GCOVH0215FCZZ → GCOVH0215FCZ1

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