Toshiba f97i001 Service Note

BSI(Service Note) TOSHIBA

TOSHIBA TEC CORPORATION

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

BSI No

F97I001

SUBJECT

Fixing of Wire Inside the Surface Potential Sensor

MODEL

CATEGORY

To improve the reliability

UC710131~

CONTENT

Since the image density concentration may be lowered by abnormalities in the surface potential
sensor, the following part has been changed.

Page No. Current New New Part Name Interchangeability
10 25 4402404500 4402429120 PWB-DETECTING ASSY B

FC70

FIELD APPLICATION

To be applied when necessary

FACTORY APPLICATION

Date

UNIT

Developer

97/09/26

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Cause
If the covering of the cable inside the VO sensor Assy (01) contacts the frame, it can break and a
short can result. Then, the image density may be lowered because the image stability control no
longer functions normally. If the VO sensor behaves abnormally, then the CALL SERVICE or the
MAINTENANCE symbol will flash on the graphic display.
Measure in field
Change the VO sensor assembly in the serviceman mode if the image stability has become
abnormal due to the VO sensor no longer functioning properly (it is also possible that the charger and
the Vg may be broken as well).

Countermeasure
The wire is to be fixed by silicon.

Inside sensor

BSI No. F97I001 Page 2

Frame Wire

Sensor

Silicon

Wire

Silicon