Electrophotography – Control of electrophotography process – Responsive to copy media characteristic
Reexamination Certificate
2006-11-15
2009-08-11
Gray, David M (Department: 2852)
Electrophotography
Control of electrophotography process
Responsive to copy media characteristic
C399S066000, C399S067000, C399S068000, C399S167000
Reexamination Certificate
active
07574153
ABSTRACT:
An image forming method includes forming a toner image on an image carrier of an image forming apparatus, transferring the toner image on the image carrier onto an intermediate transfer member, and second-transferring the toner image on the intermediate transfer member rotating at a linear speed Vc onto a recording medium, which is fed along a first conveyance path from a registration roller pair rotating at a linear speed Vr, by a transfer member. The toner image is fixed onto the recording medium, which is fed along a second conveyance path from the transfer member, by a fixing member rotating at a linear speed Vt. A length of the first and second conveyance paths is shorter than a length of a maximum recording medium of the image forming apparatus. Linear speed ratios Vc/Vt and Vr/Vc are changed depending on a property of the recording medium to prevent shock jitters.
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Nakayama Takahiro
Satoh Masahiko
Shinshi Akira
Gray David M
Hyder G. M.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
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