Sheet thickness detecting device for detecting thickness from th

Details Sheet thickness detecting device for detecting thickness from th Sheet thickness detecting device for detecting thickness from th

1997-02-11

1998-04-28

Milef, Boris

Sheet feeding or delivering

Feeding

With means to interrupt feeding

27126504, B65H 712

Patent

active

057435219

ABSTRACT:
A sheet thickness detecting device for detecting the thickness of a recording member precisely irrespective of accuracy of parts is disclosed. A state that a roller 1 of a pair of rollers 1, 2 is positioned at a predetermined angle of rotation, is detected by a flag 11 fixed to the axle of the roller 1 and a photosensor 12 for roller rotation angle detection. A signal from a photosensor 8 for roller pair axes distance detection is processed in accordance with a signal from the photosensor 12 to detect the thickness of a recording member P. In this device, the thickness of the recording member P is detected when the rollers 1, 2 are positioned at the predetermined angle of rotation. Thus, it can be detected accurately without being affected by eccentricities of the rollers 1, 2.

REFERENCES:
patent: 4491929 (1985-01-01), Ikoma et al.
patent: 4700368 (1987-10-01), Munn et al.
patent: 4894783 (1990-01-01), Milne
patent: 4982947 (1991-01-01), Milne
patent: 5029837 (1991-07-01), Uchiyama
patent: 5110105 (1992-05-01), Nicoll et al.

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