Photocopying – Contact printing – Light boxes
Patent
1994-03-14
1995-11-21
Royer, William J.
Photocopying
Contact printing
Light boxes
355203, G03G 2100
Patent
active
054692440
ABSTRACT:
A developing agent density control method includes the steps of forming a density control latent image with a predetermined potential on an image carrier, developing the density control latent image by applying a density control development bias and using a two-component developing agent having a toner and a carrier, sensing the density of the density control image, and controlling a toner-to-carrier ratio on the basis of the sensed density. In this method, the density control development bias is different from a print development bias.
REFERENCES:
patent: 4272182 (1981-06-01), Abe et al.
patent: 4632537 (1986-12-01), Imai
patent: 4883019 (1989-11-01), Menjo et al.
patent: 5253018 (1993-10-01), Takeuchi et al.
Menjo Takeshi
Ogata Takao
Canon Kabushiki Kaisha
Royer William J.
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