Image forming apparatus

Details Image forming apparatus Image forming apparatus

2006-10-31

2006-10-31

Ngo, Hoang (Department: 2852)

Electrophotography

Document handling

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C399S394000, C399S045000

Reexamination Certificate

active

07130573

ABSTRACT:
In an image forming apparatus that judges the type of sheet by using an image pickup device, it is possible to read an image which does not blur and is excellent in precision even if the shutter period of time of the image pickup device is made long, and even in the case of providing a plurality of sheet feeding parts, it is possible to judge the type of sheet more inexpensively. An image read sensor, which is disposed downstream of a junction of a deck and a recording material tray and upstream of a pair of registration rollers on the transport path for the recording material, reads the image within a light irradiated region of the recording material by irradiating a light onto the surface of the recording material when the recording material which is fed to the transport path stops, and sets an image formation condition in accordance with a read output.

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