Image forming apparatus having a plurality of developing means

Details Image forming apparatus having a plurality of developing means Image forming apparatus having a plurality of developing means

1995-12-26

1997-06-03

Brase, Sandra L.

Electrophotography

Image formation

Transfer

399302, G03G 1514

Patent

active

056360100

ABSTRACT:
An image forming apparatus has a movable image bearing member, a plurality of developing devices operable for development at different locations along the direction of movement of the image bearing member to develop the image bearing member with toners of plural colors, and a transfer medium carrying member for carrying a transfer medium thereon and conveying the transfer medium to a transfer position. The toner images of plural colors on the image bearing member are superposition-transferred onto the transfer medium carried on the transfer medium carrying member. The transfer medium carrying member is capable of carrying a plurality of transfer mediums at different locations thereon. When the maximum length of the respective gaps between adjacent ones of the plurality of developing devices along the direction of movement of the image bearing member is D, the peripheral velocity of the transfer medium carrying member is U, and the peripheral velocity of the image bearing member is V, at least one of the gaps between adjacent ones of the plurality of transfer mediums carried on the transfer medium carrying member is greater than D.times.U/V.

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patent: 5117261 (1992-05-01), Sakai et al.
patent: 5189478 (1993-02-01), Hara et al.
patent: 5249024 (1993-09-01), Menjo

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