Toshiba f97k093 Service Note

BSI(Service Note) TOSHIBA

TOSHIBA TEC CORPORATION

2-4-1, Shibakoen, Minato-ku, TOKYO, 105-8524 JAPAN

BSI No

F97K093

SUBJECT

Countermeasure against Morning Backgrounding

MODEL

CATEGORY

Available as a service part,
Treatment in the field

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CONTENT

Depending on the room temperature and the status of the discharge lamp when the power is supplied
in the morning, the copy image may have backgrounding. When the this occurs in the field, be sure
to replace the discharge lamp with a new one as a part exclusively for the field.

6550

FIELD APPLICATION

To be applied when necessary

FACTORY APPLICATION

Date

UNIT

Cleaner

97/12/04

DTM-F7701

<Method of improvement for the discharge lamp exclusively for the field>
In order to suppress the backgrounding, the on time of the discharge lamp (period from power ON till
lamp ON) has been shortened. (The infrared auxiliary LED incorporated in the discharge lamp has
been replaced with a green one.)

[Added part exclusively for the field]

Part Name

Discharge
lamp

Page-Item Part No.

57-8A

4402322690
LAMP/F-DRM-LED

Discharge lamp

BSI No. F97K093 Page 2