SHARP DTE148 Technical Report

Date: Apr. 18, 1994

DUPLICATOR: SD-2060

No. : DTE-148

U3-20, 26 DISPLAY CAUSED BY MIRROR
MOTOR PWB BREAKAGE

1.Model name: SD-2060/3062

2.General: Breakage of the SD-2062 mirror motor PWB is caused by adhesion of conductive

foreign matter. “U3-20" and ”U3-26" trouble occurs causing a break in the F705 fuse of
the DC power supply PWB. Shielding material has been applied to the mirror motor
PWB to prevent short-circuits from foreign matter adhesion.

3.Cause: Adhesion of conductive foreign matter to the IC 601 transistor array causes breakage
of the mirror motor PWB.

4.Description: After assembly is completed, air blow the mirror motor to prevent foreign matter
adhesion. Apply shielding material to the shaded areas as shown in the figure below.
(The same changes for SD-2060 mirror motor PWB have also been carried out on the
SD-3062 mirror motor PWB and the UDH paper exhaust motor 2.) Shielding material
for SD-2060, 3062 mirror motor PWBs (P/G No. 5 -3).

Apply shielding material to shaded areas.

SHARP CORPORATION Reprography Division

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Green

C

Shielding material for SD-3062, UDH exhaust motor 2 ( 64 -34)

5.Action: (Factory action)

SD-2060 Air blowing: From October 1993

Shield material application: From February 1994 production

Apply shielding material to shaded areas.

SD-3062 Air blowing: From November 1993

Shield material application: From February 1994 production

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