SHARP SP1634 Technical Report

Date: Oct. 18, 1993

COPIER : SF-2022

1. ROM CHANGE FOR STANDARDIZATION

2. CONVEYOR ROLLER DISLOCAT ION
PREVENTION

1. ROM changes for standardization

1.Model name: SF-2022 / 2027

2.General: In order to establish common usage of ROMs, the ROMs were changed to those used

in the copy machines bound for North America (Model SF-2022N/2027N), starting with
the production batch for August, 1993. This ROM is equipped with a manual feed paper
size tracking program and is compatible with the SF-2022/2027.

No. : SP-1634

3.Cause: ROM standardization

4.Action: The following parts codes are affected by the change in ROMs and have been

changed:

Current New
ROM VHI27C01013FC VHI27C01011FC
Version Ver. 5.03 Ver. 6.02
Main Substrate CPWBN0928FC57 CPWBN0928FC55

* No other ROM can be used in machines that were produced for the USA and Canada

(SF-2022N/2027N) after August, 1993. The SF-2022/2027 machines are compatible
with both ROMs.)

5.Effective time: August, 1993.

SHARP CORPORATION Reprography Division

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Green

C

2. Conveyor roller changes for improved operability

1.Model name: SF-2022 / 2027 / 2035 / 2018

2.General: The changes described below will be made to improve operations when installing the

conveyor roller drive coupling in the conveyor chassis. These changes will also help
prevent dislocation of the rollers caused by shock.

3.Cause: Improved operability.

Before changes After changes
(CROLR0897FC01) (CROLR0897FC02)

E5, E-groove - Discontinued

Stage-type coupling changed
to Tapered-type coupling

Add plastic washer
(LX-WZ0394FCZZ)

Add spring
(MSPRC2171FCZZ)

4.Description: The conveyor roller drive coupling will be changed from a st age-type coupling to a
tapered-type coupling, and a plastic washer and spring will be installed.

5.Effective time: December, 1993.

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