Toner Density Sensor Replacement - Ricoh FT6645 Manual

DEVELOPMENT AND TONER SUPPLY
3.4

TONER DENSITY SENSOR REPLACEMENT

1. Remove the developer. (Refer to Developer Replacement.)
2. Replace the TD sensor [A] (2 screws).
NOTE: Before installing the TD (Toner Density) sensor, clean the
development unit well so that no carrier particle remains in the
gap between the TD sensor and the development unit casing.
3. Install the new developer and perform the developer initial setting.
CAUTION: Never make any copy before completing the developer
initial setting.
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23 April 1993
[A]