Apparatus for holding recording sheets on an image recording app

Details Apparatus for holding recording sheets on an image recording app Apparatus for holding recording sheets on an image recording app

1996-10-16

1998-06-09

Moses, R. L.

Electrophotography

Document handling

Copy

399298, 399389, G03G 2100

Patent

active

057650942

ABSTRACT:
An image recording apparatus comprises an image carrier (1); a latent image forming means (2); a plurality of developing means (3: 3a, 3b, 3c and 3d); a transfer drum (5) having a sheet holding surface (A); a transfer means (6); a sheet feed means (11); a sheet type discriminating means (12) for discriminating whether or not the surface rigidity of the recording sheet (4) stacked on the sheet feed means (11) is higher than the reference surface rigidity; a curl deforming means (14) arranged in a conveyance passage of the recording sheet (4) from the sheet feed means (11) to the transfer drum (5), for forcibly curling the recording sheet (4) in accordance with a radius of curvature of the transfer drum (5) when it is discriminated by the sheet type discriminating means (12) that the recording sheet (4) is highly rigid; a sheet holding control means (19) for holding the recording sheet (4) on the same sheet holding surface (A) of the transfer drum (5) irrespective of the result of discrimination conducted by the sheet type discriminating means (12); and an image forming process control means (16) for controlling the transfer of the toner image of each color from the image carrier (1) onto the recording sheet (4) held on the transfer drum (5).

REFERENCES:
patent: 5075732 (1991-12-01), Menjo
patent: 5132736 (1992-07-01), Muramatsu et al.
patent: 5333038 (1994-07-01), Mizoguchi et al.
patent: 5335056 (1994-08-01), Muramatsu
patent: 5481365 (1996-01-01), Arimoto
patent: 5523829 (1996-06-01), Miyashiro et al.
patent: 5565970 (1996-10-01), Suda
patent: 5619746 (1997-04-01), Kubo et al.

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