SHARP DTE140 Technical Report

Date: Mar. 16, 1994

DUPLICATOR: SD-2060

1.TROUBLE SHOOTING DIAGONAL FEEDING OF SMALL SIZE ORIGINAL
DOCUMENTS.

2.CHANGE IN RADF DISPLAY (LED) PWB.

3.CHANGE IN MAKER FOR THE RADF PBA CONTROL PWB ROM.

No. : DTE-140

1. Trouble shooting diagonal feeding of small size original documents.

1.General: Because the pressure roller stays are attached by insertion hooks in the rear and
screws in the front. As a result, it easily becomes loose, causing the pressure of the
pressure roller to become uneven. When double side feeding of small sized documents
is carried out, diagonal feeding sometimes occurs (diagonal printing). T o alleviate this
problem, mylar has been added to side plate R.

2.Description: Stay mylar has been added to the pressure roller stay insertion holes in side plate R,
preventing the stays from becoming loose.

Attachment standard

Base plate R

Stay mylar

Stay mylar: 0CW2176P378A/ Q’ty: 2

Right side pressure roller
stay insertion hole.

Attachment standard.

3.Action: (Factory action)

From 1993 Mid-December production.

SHARP CORPORATION Reprography Division

1/3

Green

C

2. Change in RADF display (LED) PWB.

1.General: When mass production of the RADF was first started the green color was sometimes a
little dark. Selection of the LED rank was carried out as a temporary measure, but as a
more permanent measure, the LED current control resistance has been changed and
the LED rank selection has been discontinued.

2.Description: As shown in the figure below, the LED current control resistance has been changed
from 180Ω to 91Ω.

RE: 180Ω → 91Ω

The parts code has also been changed in accordance with this change.

PBA-LED PWB 0CW2176K219A/ 0CW2176K219B/

3.Action: (Factory action)

Running change from 1994 February production.

3. Change in maker for the RADF PBA control PWB ROM.

1.General: The maker of the RADF PBA control PWB ROM has been changed in accordance with
parts supply conditions. (No change has been carried out on the programming.)

2.Description: The parts code has been changed in accordance with the change in the maker of the
RADF PBA control PWB ROM.

EP-ROM 0CW2176K204D/ 0CW2176K204E/

3.Action: (Factory action)

Running change from 1994 February production.

2/3