SHARP SP2117 Technical Report

Date: May. 20, 1997

COPIER : SF-2116

1. CHANGE IN THE ELECTRO-MAGNETIC CLUTCH OF THE PAPER FEEDING UNIT CARRIED OUT AS A
MEASURE TO IMPROVE PRODUCTIVITY.

2. MEASURE TO STRENGTHEN THE CLAM SHELL LOCK.

3. MEASURE CARRIED OUT TO IMPROVE PROBLEMS OF NOISE.

4. MEASURE CARRIED OUT TO IMPROVE PROBLEMS OF RISING TEMPERATURES IN THE DC PWB.

5. MEASURE CARRIED OUT TO IMPROVE PROBLEMS OF NOISE.

No. : SP-2117

1. Change in the electro-magnetic clutch of the paper feeding unit carried out as a
measure to improve productivity.

1.Model Name: SF-2116/ 1016/21 18/1018/2020/1020/2120/1 120

2.General: A change has been carried out in the electro-magnetic clutch of the paper feeding unit

in the models listed above. This change has been carried out as a measure to improve
productivity.

Collar

PS front roller

Paper feeding
drive frame

(Discontinued) E7

(Discontinued)
22T electro-magnetic clutch:
PCLC-0236FCZZ

(Added)
Clutch bushing:
NBRGC0584FCZZ

(Added)
22T electro-magnetic clutch N:
PCLC-0270FCZZ

Note: As shown in the figure above, the old clutch and E7 are comparable with the new

clutch and the clutch bushing, and therefore an old/new interchangeable
relationship has been established.

Note: As shown in the figure above, line processing direction is different between the old

parts and the new parts.

3.Action: From 1997 February production.

SHARP CORPORATION Reprography Division

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Green

C

2. Measure to strengthen the clam shell lock.

1.Model Name: SF-2116/ 1016/21 18/1018/2020/1020/2120/1 120

2.General: When inserting the ADU in the SF-2020, there was a danger of the lock of the machine

becoming loose, causing the possibility of problems of clam shell opening. As a
measure to alleviate this problem, a change has been carried out in the diameter of the
lock lever spring, to improve the load of the spring. The change has also been carried
out in the springs of the other models listed above to establish interchangeability.

3.Action: ∗1 SF-1120/ 2120: From 1996 November production.
Other models: Japanese domestic production:

Running change from 1997 March production.

Chinese (SOCC) production:

Running change from 1997 April production.

French (SMF) production:

Running change from 1997 May production.

3. Measure carried out to improve problems of noise.

1.Model Name: SF-2020/1020/2120/1 120

2.General: A core, gasket and capacitor has been added to the models listed above. This measure

has been carried out to improve problems of noise.

1) Ferrite core: Germany, Australia,Great Britain.

No.10 pin white

To the operation panel

→

Ferrite core

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2)Gasket A, Gasket attachment sheet:Germany, Australia, Great Britain.

Lower frame R AS

Machine
base plate

Gasket
attachment sheet

Lower frame R As

Gasket A

Gasket length

Y Standard

X Standard

Lower frame R AS

Gasket

Lower frame R AS

Gasket

Gasket
attachment sheet

R Arrow-view diagram (1/2)

R Arrow-view diagram (2/2)

Q Arrow-view diagram

〈 Attachment procedure 〉
[1] Attach the gasket.
[2] Bring the bent portion of the gasket attachment sheet in contact with the gasket and

attach.

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