Model K-C3.5L
59
Ricoh Co. Ltd.
http://www.ricoh.com/
Slide 59
Development Bias
White areas: High negative charge (-950V)
Black areas: Discharged by the laser (about -150V)
Development bias (-650V): Forces the negatively-charged toner onto the
discharged areas of the drum.
Applied to development roller shaft through drive shaft.
Bias terminal
Development roller
More on Development Bias
This machine uses a negative-positive development system, in which black
areas of the latent image are at a low negative charge (about –154
±
50 V) and
white areas are at a high negative charge (about –950 V).
To attract negatively charged toner to the black areas of the latent image on the
drum, the high voltage supply board applies a bias of –650 volts to the
development rollers throughout the image development process. The bias is
applied to the development roller shaft [A] through the drive shaft [B].
The development bias voltage (–650 V) can be adjusted with SP 2201 1.
Summary of Contents for K-C3.5L
Page 122: ...Model K C3 5L 122 Ricoh Co Ltd http www ricoh com Slide 122 ADF DF2000 No additional notes...
Page 130: ...Model K C3 5L 130 Ricoh Co Ltd http www ricoh com Slide 130 ARDF DF2010 No additional notes...
Page 193: ...Model K C3 5L 193 Ricoh Co Ltd http www ricoh com Slide 193 End of Course...
