SHARP ARE087 Technical Report

DIGITAL COPIER : AR-335 etc.

Date

Aug. 17, 1998

No. : ARE-087

[Service Information]

CHANGE CARRIED OUT IN THE TRANSFER AND SEPARATOR CHARGER WIRE AND POINTS OF CAUTION TO BE OBSERVED DURING REPLACEMENT OPERATIONS.

1.Model Name: AR-335, 285, 280

2.General: There was an error found in the part code which was listed in the Parts Guide for the

transfer and separator charger wire of the TC unit. The error has been corrected. Furthermore, the addition of points of caution to be observed during replacement operations of the F. Transfer and separator charger wire listed in the parts 10-3, 4 of the service manual has been carried out.

3.Description: <1> A correction of the part code for the transfer and separator charger wire of the TC

unit has been carried out.

38 TC Unit

Current parts New parts

P/G No.

38 -1

Parts code Parts code

DWIR-0466CSZZ DWIR-0550CSZZ BQ Charger wire

Price

rank

Parts name Replacement cycle

40 K (domestic) 80 K (overseas)

<2> The points of caution to be observed during replacement operations of the transfer

and separator charger wire are as follows. These points of caution should be added to page 10-3, 4 of the service manual, listed under F. Transfer and Separator Charger Wire.

(1) The wire used should be the part corresponding to part code DWIR-0550CSZZ. (2) Confirmation that the wire is not twisted or bent should be carried out. (3) When the wire is wrapped around the charger spring, it should be wrapped at

an angle of about 60°. If the wrapping angle is too sharp it will be difficult for the wire to unwrap, and if the wrapping angle is too wide there is a possibility that the wire might be easily cut. (Please refer to the figure shown on the next page.)

SHARP CORPORATION Reprography Division

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Green

Approximately 60°

(4) Wire cutters should always be used when cutting the excess length.

The remaining length of extra wire should be within 1 mm. The wire cutting operation should be carried out so that there is no stress placed on the wrapped portion of the wire. (Please refer to the figure shown below.)

Within 1 mm

(5) The charger wire should be stretched so that the length of the tension spring

is approximately 10±0.5 mm. (Please refer to the figure shown below.)

The length of the tension

Tension spring

Scribe line

spring (10 ± 0.5 mm) should be measured from the scribe line wire of the TC case, and should be less than 1 mm.

Charger wire

(6) The charger wire should lie in the V groove of the TC case.

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