Sheet feeding or delivering – Feeding – Multiple supplies
Patent
1997-11-14
1999-09-21
Skaggs, H. Grant
Sheet feeding or delivering
Feeding
Multiple supplies
271 911, 271 913, 271 1011, 358498, B65H 344
Patent
active
059543264
ABSTRACT:
A multi-function sheet handling system including an automatic document feeder (ADF) for automatically feeding sheets of a document held in an ADF input tray. An ADF pick roller selectively picks a sheet of the document and advances the picked sheet along an ADF path. The system includes an automatic sheet feeder (ASF) for automatically feeding sheets of a print media held in an ASF input tray. An ASF pick roller selectively picks a sheet from the ASF input tray and advances the picked sheet along an ASF path. The system further includes an ADF gear for driving the ADF roller, an ASF gear for driving the ASF roller, and a motor drive including a gear train, the motor drive including a stepper motor or other motor with position control. A three-state shifting device couples the motor drive gear train to the ADF and the ASF gears. The shifting device has a neutral state wherein neither the ADF gear nor the ASF gear is driven, an ADF state wherein only the ADF gear is driven, and an ASF state wherein only the ASF gear is driven. The shifting device includes a cam swing arm having a plurality of cam surfaces, and a ratcheting cam follower. The shifting device is shifted from one state to another by operation of the motor in a sequence of reverse and/or forward motor drive operations.
REFERENCES:
patent: 4577849 (1986-03-01), Watanabe
patent: 4770555 (1988-09-01), Deschamps
patent: 4822019 (1989-04-01), Nagira
patent: 4978112 (1990-12-01), Yokoi
patent: 5169250 (1992-12-01), Tsury et al.
patent: 5206737 (1993-04-01), Sugiyama
patent: 5226743 (1993-07-01), Jackson et al.
patent: 5391009 (1995-02-01), Stodder
patent: 5587812 (1996-12-01), Kasuya
patent: 5800083 (1998-09-01), Gaarder et al.
patent: 5896206 (1999-04-01), Kellogg
Frankie Thomas T.
Gaarder Glenn W.
Hewlett--Packard Company
Skaggs H. Grant
LandOfFree
Three state shifting device for multi-function office equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Three state shifting device for multi-function office equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three state shifting device for multi-function office equipment will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-73241