SHARP SP1586 Technical Report

Date: Jun. 7, 1993

COPIER : SF-2022

1. DISCONTINUED USE OF THE SHIELD SHEET OWING TO A CHANGE IN
THE OPTICAL BASEPLATE (TO PERMIT SHARED USE WITH SF-2035)

2. USE OF FAN SHIELDS, F AND R DUE TO SHARED USE WITH SF-2035

1. Discontinued use of the shield sheet owing to a change in the optical baseplate
(to permit shared use with SF-2035)

1. Model name: SF-2022/2027

No. : SP-1586

2.General: While the use of the shield sheet was informed on SP-1557 to avoid contamination of
the table glass reverse side with silicon oil gas, the use of the shield sheet will be
discontinued to use since the round hole of the optical baseplate is removed after
changing the press mold.

3.Reason: The hole is removed on the new press mold of the optical baseplate.

4.Description: As illustrated next, the use of the shield plate will not continue as the hole in the optical

baseplate is removed in the new press mold. However, M4 tap holes are added at four
locations to allow shared use with SF-2035.
The existing parts will continue to be supplied as the service parts.

(Rear frame side)

Flow control mylar

M4 tapping
holes added

(Paper exit side)

Drying heater
install location

(Rear frame side)

(Paper exit side)

Flow control mylar

Baseline

Changed to

Drying heater
install location

Black mylar (shield sheet)
(PSHEP3374FCZZ)

Optical baseplate

Baseline

5.Action: Running change since January 1993.

SHARP CORPORATION Reprography Division

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Green

C

2. Use of fan shields, F and R due to shared use with SF-2035

1.Model name: SF-2022/2027

2.General: While the fan shields, F and R, have been installed on the optical baseplate since the

first production unit of SF-2035, these have been used in SF-2022 and SF-2027. After
these changes, the use of the flow control mylar, attached to the optical baseplate, and
the fan mylar, attached to the fan motor, are discontinued.

3.Reason: It is to allow shared use with SF-2035.

4.Description: As the fan shields, F and R, are added on the paper exit side of the optical baseplate

and shield sheets (three) are added, the use of the flow control mylar and the fan mylar,
attached on the front side of the fan motor, are discontinued.

Screws added

Fan shield R (new)

Screws added

Fan shield F (new)

Fan mylar sheets
(Discontinued)

Discontinued use of
the flow control mylar
(shadowed area)

Use of shield sheets at
three locations (attached
on three locations of the
baseplate round holes)

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* The fan mylar sheets also used in SF-2035 will be discontinued to use.