SHARP STE009 Technical Report

Date: Jul. 30, 1996

COPIER : SF-2014

No. : STE-009

1.TROUBLE SHOOTING EU PROB LEMS.

2.CHANGE IN THE BEARING OF THE DEVELOPING TANK.

Model Name: SF-2014/21 14/2214

Z-800, SN-1420/1430

1. Trouble shooting EU problems.

1.General: The EE-EU trouble code occasionally occurs after the developer adjustments (SIM
25-02) have been carried out when installing the machines.
Cause: The developer adjustment value sometimes drops below the control lower limit
due to deviations in developing tank measurements or assembly, deviations in
developer or due to low humidity conditions.

2.Description: ➀ Temporary measure

A spacer (t=0.188 mm) has been added
between the toner sensor and the bottom
of the developing tank.

The shaded section indicates the added spacer.

Name: ATC spacer
Code: PSPAZ1388FCZZ

➁ Permanent measure

A change in the toner sensor adjustment value has been carried out. In order to make a
distinction, a change in the color of the toner sensor label has also been carried out.
When the new toner sensor is used the ATC spacer which was employed as a
temporary measure is to be discontinued.

Part code RDTCT0109FCZZ RDTCT0109FCZ1
Label color White Light yellow-green
Adjustment value 2.50V 3.20V

Old New

SHARP CORPORATION Printing and Reprographic Supplies Division

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Yellow

C

3.Action: ➀ Temporary measure: From 1996 mid-April production.
➁ Permanent measure:

Japanese domestic production: From 1996 mid-June production.
Chinese (SOCC)/French (SMF) production: From 1996 August production.

2. Change in the bearing of the developing tank.

1.General: Cohesion of the developer sometimes occurs after or during the first 500 to 2,000
copies when working under low copy volume conditions due to influence from the oil
bearing used in the developing tank. Since there are occasions when light copies are
desired, the bearing has been changed to one with a Teflon coating.

2.Description: Seven bearings with a diameter of ø5 and one bearing with a diameter of ø6 have been
changed to bearings with Teflon coatings.

Developing tank of the SF-2014 line.

Teflon-coated bearing
with a diameter of ø5.
(NBRGC0576FCZZ)

Teflon-coated bearing
with a diameter of ø6.

(NBRGC0577FCZZ)

3.Action: From 1996 June production.

Old bearing NBRGC052 2FC ZZ
No change has been carried out.

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