Image forming apparatus

Details Image forming apparatus Image forming apparatus

1997-11-03

2000-07-25

Grimley, Arthur T.

Electrophotography

Document handling

Copy

399406, G03G 1500

Patent

active

060945613

ABSTRACT:
The present invention aims to improve productivity when a sheet is discharged while surface-reversing the sheet. When a curl removing means also acts as a convey means, excessive curl or wrinkle can be prevented from being formed in the sheet being conveyed. An image forming apparatus according to the present invention includes a first curl removing roller pair and a second curl removing roller pair (convey means/curl correcting means) which are disposed in a re-supply convey path, so that, when the sheet is surface-reversed, the first curl removing roller pair is retarded from the re-supply convey path in accordance with a length of the sheet (to be surface-reversed) in a conveying direction.

REFERENCES:
patent: 4814825 (1989-03-01), Johdai et al.
patent: 5132742 (1992-07-01), Goto
patent: 5317377 (1994-05-01), Rubscha et al.
patent: 5414503 (1995-05-01), Siegel et al.

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