SHARP SP1891 Technical Report

Date: Jul. 20, 1995

COPIER : SF-2014

1.PREVENTION OF MANUAL SOLENOID OPERATION MALFUNCTIONS IN THE MANUAL MULTI PAPER FEEDER UNIT.

2.GRID VOLTAGE EXCESS OVER SPECIFICATIONS.

3.MEASURES TO PREVENT THE AIR FILTER IN THE UPPER PART OF THE REAR CABINET FROM CLOGGING.

4.MEASURES TO PREVENT THE TONER HOLDER FROM CRACKING.

No. : SP-1891

1. Prevention of manual solenoid operation malfunctions in the manual multi paper feeder unit.

1.Model name: SF-MF14/SN-MF11 (U.S.A. only)

2.General: Problems with the manual solenoid failing to draw properly occasionally occurred in the

manual paper feeder unit. As a temporary measure to alleviate the problem, an ABS with a thickness of 1 mm was inserted under the solenoid to shorten the stroke, but as a permanent measure the shape of the solenoid has been changed.

3.Action: From the start of 1995 March production.

2. Grid voltage excess over specifications.

1.Model name: SF-2014/21 14/2214 Z-800, SN-1420/1430 (U.S.A .only)

2.General: When the harness from the high voltage PWB approaches too near to high voltage lines, the effects of noise caused the grid voltage surpassed the specifications. This problem occurred on the production line, however, and measures have been taken to alleviate the problem.

3.Description: As shown in the figure below, a wire band has been added to prevent the harness from coming too close to the high voltage lines.

SHARP CORPORATION Reprography Division

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Green

4.Action: From 1995 mid-February production.

3. Measures to prevent the air filter in the upper part of the rear cabinet from clogging.

1.Model name: SF-2014/21 14/2214 Z-800, SN-1420/1430 (U.S.A. only)

2.General: Under normal running conditions there are no problems with the air filter installed inside the upper part of the rear cabinet, but during long copy testing operations the possibility of filter clogging does exist. To eliminate this possibility the shape of the air filter has been changed.

3.Description:

SF-2014/2114 Z-800, SN-1420 (U.S.A. only)

SF-2214 SN-1430 (U.S.A. only)

4.Action: Running change from 1995 mid-January production.

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