Electrophotography – Image formation – Treatment of developed image prior to transfer
Reexamination Certificate
2007-10-09
2007-10-09
Gray, David M. (Department: 2852)
Electrophotography
Image formation
Treatment of developed image prior to transfer
C399S050000, C399S066000
Reexamination Certificate
active
11232051
ABSTRACT:
An image forming apparatus according to the present invention is provided with a plurality of image bearing members, an intermediate transfer member, a plurality of first transfer devices, a second transfer device, and a charge amount adjustment section. The image bearing members carry images of respective colors. The intermediate transfer member is rotatably disposed at a position opposed to the image bearing members. The first transfer devices form a full-color toner image on the intermediate transfer member by transferring color toner images formed on the image bearing members to the intermediate transfer member. The second transfer device transfers the full-color toner image formed on the intermediate transfer member to a recording sheet. The charge amount adjustment section adjusts the charge amount of toner particles constituting the full-color toner image so as to reduce non-uniformity in a charge amount of toner particles of the full-color toner image on the intermediate transfer member per unit area.
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Oki Electric Industry Co., Oki Technical Review, 1998.
Iwakura Yoshie
Nakano Kuniaki
Gray David M.
Renner , Otto, Boisselle & Sklar, LLP
Sharp Kabushiki Kaisha
Wong Joseph S.
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