Paper feed device
AssigneeTokyo Shibaura Denki Kabushiki Kaisha
InventorsKunihiro Shibuya, Kohachi Uchida
Life of this patent
Estimating the term…
Abstract
A paper feed device according to the invention comprises a paper feed cassette accommodating paper sheets and a paper feed mechanism for feeding out paper from the cassette. It also comprises a manual paper supply guide provided on top of the cassette for advancement and retreat therealong and having a paper guide surface for guiding manual supply paper. The detection of whether paper is present in the paper feed cassette and also the detection of a paper sheet being fed over the manual paper supply guide in a manual paper feed supply mode are effected by a single detecting switch.
Claims11
A paper feed device comprising:
- (a) a paper feed cassette accommodating paper sheets;
- (b) a paper feed mechanism for feeding paper from said paper feed cassette;
- (c) a manual paper supply guide means provided on or near said paper feed cassette and movable between a position to permit cassette paper supply and a position to permit manual paper supply;
- and
- (d) locking means for holding said manual paper supply guide means in said position to permit manual paper supply at the time of manual paper supply mode and for releasing said guide means from said manual paper supply position to automatically switch the manual paper supply mode to a cassette paper supply mode according to an externally coupled signal for bringing about the cassette supply mode.
A paper feed device comprising:
- (a) a paper feed cassette accommodating paper sheets;
- (b) manual paper supply guide means provided on or near said paper feed cassette and movable between a position to permit manual paper supply and a position to permit cassette paper supply;
- (c) paper feed means for feeding paper manually supplied with aid of said manual paper supply guide means or paper from said paper feed cassette;
- (d) holding means for holding said manual paper supply guide means in said position to permit manual paper supply;
- (e) releasing means for releasing said holding means from the holding state thereof;
- and
- (f) a control means for actuating said releasing means according to a signal from a paper feed switch in said manual paper supply mode.
A paper feed device comprising:
- (a) a paper feed cassette accommodating paper sheets;
- (b) manual paper supply guide means provided on or near said paper feed cassette and movable between a position to permit manual paper supply and a position to permit cassette paper supply;
- (c) paper feed means for feeding paper manually supplied with aid of said manual paper supply guide means or paper from said paper feed cassette;
- (d) holding means for holding said manual paper supply guide means in said position to permit manual paper supply;
- (e) releasing means for releasing said holding mechanism from the holding state thereof;
- (f) timer means for producing an output signal after the lapse of a predetermined period of time from the instant when said holding state of said holding mechanism is brought about;
- and
- (g) control means for operating said releasing mechanism according to the output signal from said timer.
A paper feed device, comprising:
- a paper feed cassette accommodating paper sheets;
- manual paper supply guide means provided on or near said paper feed cassette and which can be set between a position to permit manual paper supply and a position to permit cassette paper supply;
- paper feed means for feeding paper manually supplied with aid of said manual paper supply guide means or paper from said paper feed cassette;
- holding means for holding said manual paper supply guide means in said position to permit manual paper supply;
- and
- releasing means for releasing said holding means from the holding state thereof.
Dependencies are inferred from the claim text.