SHARP sp2178 Technical Report

Change the fusing CL rollers to sliding rollers.

COPIER : SF-2022

Date

:

Sep. 18, 1997

No. : SP-2178

L4 TROUBLE.

1.Model Name: SF-2022/2027/2035

2.General: For machines which have made over 200,000 copies, the load on the main motor

becomes too heavy due to gear wear and increased load on the fusing cleaning rollers.
Since L4 occurs, please handle it in the following manner.

3.Description: 1. Change the tension bearings to ball bearings.

NBRGY0484FCZZ (ø8-19) ball bearings Q’ty: 2

2. Change the paper tray drive bearings to ball bearings.
(Add washers since the ball bearings are thinner than the drive bearings.)
NBRGY0434FCZZ (ø8-12) ball bearings Q’ty: 2

XWHSD80-12160 washers (ø8-16 t 1.2mm)

3. Change the load of the tension spring from 6 kg to 4.5 kg.

MSPRC2694FCZZ tension spring N (4.5 kg load)

4.

SHARP CORPORATION Reprography Division

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Green

C

(2) Change to (ø8-12) ball bearings.Q’ty: 2

Add anti-gutter washers since the ball bearings
are thinner than the drive bearings.Q’ty: 2

Flat washers Main drive unit

(1) Change to a total of 2 8-19 ball bearings.

Washer

(3) Change the tension springs to 4.5 kg

load springs.

Washer

2 ball bearings

(4) Take out the E rings and

the CL gears and attach
the CL rollers.

To decrease the load on the motor, the load on the tension springs must be weakened,
so afterwards make sure that there in no blurring on A3 size copies.

4.Action: Only Market Action.

Fusing unit

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