SHARP SP1720 Technical Report

Date: Mar. 31, 1994

OPTION : SF-A51

No. : SP-1720

STABILIZATION OF THE CLOCK FREQUENCY OF THE PAPER FEEDIN G SEC T IO N.

1.Model name: SF-A51 / A11 / A52 / SF-9400 RADF (Export models only).

2.General: The clock pulley of the paper feeding section of the above models is fixed by a

horizontal pin, but after being made looseness still remained and the clock frequency was not stabilized and the motor speed control and original copy delivery control became unstable. This causes problems such as the failure of original copies to be fed properly , and over running of original copy pages. This problem has been alleviated by trouble shooting the looseness of the horizontal pin and the clock pulley. by the addition of a wave washer.

3.Description: A wave washer has been added between the plastic slider and the clock pulley to remedy the looseness of the clock pulley.

Clock plate

Added wave washer (0CW2112P094A/)

E Ring

Horizontal pin

Plastic slider

Added wave washer

SHARP CORPORATION Reprography Division

1/2

Green

4.Action: (Factory action)

Since the February 1994 production.

Ref.

Model

No.

SF-A51

SF-9400

1. Interc ha ng ea bl e. 4. N ot i nt er ch an ge ab l e.

2. Current type can be used in place of new type. New type cannot be used in place of current type.

3. Current type cannot be used in place of new type. New type can be used in place of current type.

Parts marked with “ ” is important for maintaining the safety of the set. Be sure to replace these parts with

sp ec if ie d ones fo r m ain ta in i ng t he s a fe ty an d pe r fo rma nc e o f th e s et .

name

A11

(A52)

Version P/G No.

All

Current parts New parts

Parts code Parts code

— 0CW2112P094A/ AB Wave washer ’93/2

Price

5. Interchangeable if replaced with same types of relate d parts in use .

6. Others .

Parts name

rank

Effec-

tive

time

* Refer to the P/G for model SF-9400 for information concerning model SF-A52

Inter-

change-

ability

Note

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