Toshiba G00H093 Service Note

BSINo. G00H093 Page 1

BSI No.: G00H093 Publish

2000/09/12

Date: Subject: Countermeasure to Color Moire in Z4, X3e Controller (KR-7037, 7038)

Model: FC22, KR7037, KR7038

Category Field Application UNIT

Countermeasure to field trouble To be applied immediately Optional Kit

FactoryApplication: -

CONTENT

This treatment is to be adopted only when an improvement of color moire is demanded by the user.

[Object]

Fiery Z4 (KR-7037) Version1.0 Fiery Z4 (KR-7037) Version1.1 Fiery X3e (KR-7038) Version1.0

[Phenomenon]

Under the following conditions, there is a possibility that the color moire may appear on the copy face.

Fiery Z4 or X3e controller is connected to FC22 and a print is output. When a mixed color is uniformly colored in a graphic image (for example, background color of

PowerPoint etc.)

PS)

Color moire differs depending on the color used or the image density. In general, when gray, green and purple CMYK colors are thinly overlapped, the phenomenon occurs.

[Countermeasure]

The program inside the controller is rewritten with the patch "SetGraphicsLowFreq.ps" which is opened in "TTSI". Be sure to carry out the procedure based on the attached file "G00H093.pdf" for details. It is possible to return a program to the default with the patch "SetGraphicsHiFreq.ps" exhibited

simultaneously.

[Note]

Be sure to check the following points for the countermeasure application.

With improvement of color moire, a jagged tone changes. Be sure to use properly according to 1. use. Since the patch rewrites the program in the Z4 or X3e controller, do not use it other than for this 2. purpose. This would cause the copier to malfunction.

Attached File

G00H093.pdf