Medium supporting member and image forming apparatus

Details Medium supporting member and image forming apparatus Medium supporting member and image forming apparatus

2011-01-18

2011-01-18

Colilla, Daniel J (Department: 2854)

Typewriting machines

Platen or platen-moving mechanism

C400S023000, C400S048000, C347S104000, C250S559180

Reexamination Certificate

active

07871216

ABSTRACT:
A medium supporting member, which is used in an image forming apparatus, includes: a plurality of ribs that support a recording medium; and an irradiation target portion that has a flat and smooth surface which is irradiated with a light by a light emitting unit of the image forming apparatus, wherein: a reflected light of the light emitted by the light emitting unit is detected by a light receiving unit of the image forming apparatus, and a presence or absence of the recording medium in the irradiation target portion is detected based on a quantity of the reflected light; and a distance between the irradiation target portion and the recording medium is increased in a direction from the light receiving unit to the light emitting unit.

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