SHARP SP1892 Technical Report

Date: Jul. 25, 1995

COPIER : SF-2014

1.CHANGE IN THE VFM AND DISCONTINUANCE OF THE VFM PWB.

2.MEASURES FOR PREVENTING THE CRIM PING OF THE HEATER LAMP LEAD WIRE IN THE FUSING UNIT.

3.TROUBLE SHOOTING DETEC TI ON MALF UNCTIONS IN THE OPERATION PANEL KEYS.

4.MEASURES TO PREVENT VOLTAGE CHANGES IN THE COPY LAMP DUE TO VOLTAGE FLUCTUATION
IN THE POWER SUPPLY.

5.MEASURES FOR PREVENTION OF H2 TROUBLE.

No. : SP-1892

1. Change in the VFM and disc ontinuance of the VFM PWB.

1.Model name: SF-2014/21 14/2214
SF-2014/21 14/2214 (SEEG, UK only)

2.General: The VFM (exhaust fan) installed in the upper frame is a one-speed model. By using a
VFM PWB, this fan had been converted to two-speed capacity, but to improve
productivity the VFM itself has been changed to a two-speed model and the VFM PWB
has been discontinued. This change does not affect the functionability of the unit in any way.
(The change in VFM and t he addition of the VFM PWB was reported in Technical
Reports no. S-154.)

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

2. Measures for preventing the crimping of the heater lamp lead wire in the fusing unit.

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

2.General: There is a danger of the heater lamp lead wire in the fusing unit becoming crimped
when the fusing cover is attached to the fusing unit during the assembly stage of the
production process. To alleviate this danger, the rib on the inside surface of t he fusing
cover has been cut away.

3.Description: The ribs designated by nos. ➀ through ➃ in the figure below have been cut away.

Inside surface of the fusing cover

SHARP CORPORATION Reprography Division

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Green

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4.Action: Japanese production: Running change from 1995 mid-May production.
Chinese(SOCC) production: Running change from the start of 1995 May production.
French(SFM) production: Running change from the start of 1995 J uly production.

3. Trouble shooting detection malfunctions in the operation panel keys.

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

2.General: Problems have arisen in the production process when the edge of the panel keys (3, 4,
7, 8, 9) are depressed causing the key to tilt to a diagonal position. This causes it to
come in contact with the edge of the switch and makes it difficult for the switch to
register. To alleviate this problem, a rib has been added to the section of the panel key
which depresses the switch.

(Old) (New)

3.Description:

Added rib

Contact is made here

The change described above has already been carried out on all keys other than the
panel keys.

4.Action: Japanese production: Running change from 1995 mid-May production.
Chinese(SOCC) production: Running change from 1995 mid-June production.
French(SFM) production: Running change from 1995 mid-July production.

4. Measures to prevent voltage c hanges in the copy lamp due to voltage fluctuation in
the power supply.

1.Model name: SF-2014/21 14/2214 (only for models bound for countries using the 120V series)
Z-800, SN-1420/1430 (USA only)

2.General: Problems of voltage changes occurr ing in the copy lamps during voltage fluctuations in
the power supply have arisen in the models listed above bound for countries using the
120V line. To alleviate this problem, the 2 measures described below have been carried

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