SHARP DTE256 Technical Report

Date: Jan. 10, 1997

DUPLICATOR : SD-4085

1.MEASURE TO IMPROVE THE MOVEMENT OF THE VALVE ARM IN THE RDH UNIT.

2.TROUBLE SHOOTING MEASURE TO ALLEVIATE PROBLEMS OF IMAGE BLURRING.

3.CHANGE IN THE COLOR OF THE 2ND RESIST ROLLER (SERVICE INFORMATION).

4.TROUBLE SHOOTING MEASURE TO ALLEVIATE PROBLEMS OF LOOSENESS IN THE
ORIGINAL FIXER ARM.

No. : DTE-256

1. Measure to improve the movement of the valve arm in the RDH unit.

1.Model Name: SD-4085

2.General: A change has been carried out in the valve arm in the RDH unit as shown in the figure

below. This change has been carried out as a measure to improve the movement of the
valve arm.
Note: The valve arm is used in two (2) places in the RDH unit. Use of the original valve
arm indicated by P/G No. will not present any problems.

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Valve arm

Corner cut

3.Action: From 1996 mid-June production.

2. Trouble shooting measure to alleviate problems of image blurring.

1.Model Name: SD-4085

2.General: The measure described below has been carried out in order to maintain the difference

in height between the exposure paper guide C and the RDH glass. This measure has
been carried out as a trouble shooting measure to alleviate problems of image blurring.

3.Description: ➀ A change has been carried out in the angle of the leading edge of the paper guide.
(10° → 13° )

SHARP CORPORATION Reprography Division

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Green

C

➁ 1 mm has been cut from the leading edge of the paper guide.

RDH glass

➁ 1 mm cut

➀ 13 °

4.Action: From 1996 mid-September production.

3. Change in the color of the 2nd resist roller. (service information)

1.Model Name: SD-4085

2.General: A change in the color of the roulette roller of the 2nd resist roller in the RDH unit has

been carried out. The color has been changed from yellow to gray. This change has
been carried out in accordance with a change that was carried out in the metal mold by
the maker.
Note: There is no difference in the functional performance of the parts affected by this
change.

2nd Resist Roller

Roulette roller (yellow → gray)

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Normal type (gray)

Roulette roller (yellow → gray)

3.Action: From the start of 1996 October production.

4. Trouble shooting measure to alleviate problems of looseness in the original fixer arm.

1.Model Name: SD-4085

2.General: Problems have occurred with looseness in the original fixer arm in the RDH rear edge

unit. The looseness became so bad that the left and right balance became upset. As a
trouble shooting measure to prevent looseness of the original fixer arm and thus
alleviate this problem, a change has been carried out in the tolerance of the joint
section of the original drive arm shaft, and cut of the C surface section has been carried
out.

3.Action: From the start of 1996 October production.

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