Sheet feeding or delivering – Feeding – Separators
Patent
1997-10-07
1999-09-07
Terrell, William E.
Sheet feeding or delivering
Feeding
Separators
271 35, 271121, 271167, 271 1006, 271127, B65H 304
Patent
active
059474661
ABSTRACT:
A paper feed apparatus for low profile printer including a rotatable paper feed drive shaft which is mounted for rotation in a printer housing which supports a first belt drive pulley or roller. The belt drive pulley engages a continuous belt mounted thereon of rubber or other flexible belt material. A paper supply tray having paper is selectively biased against the belt with the paper in contact therewith. The opposite end of the continuous belt is mounted to a idler roller or roller on a rotatable idler shaft which supports the continuous belt such that the 1 portion of said belt between the drive pulley and the idler roller which is in contact with the paper is disposed generally, (the belt run) to a paper path. On motion of the belt at least one sheet of paper is moved out of the paper supply tray. An inclined paper separator is mounted below the termination belt shaft and is selectively biased against the continuous belt at a point on the belt between the drive roller and the idler roller. The paper separator is angled away from the paper source and upwards toward the lower surface of the continuous belt and has an engagement pad of rubber or other material similar to the belt with an arcuate crown for engaging said belt. The belt material has a greater friction than the separator pad. However the separator pad and belt each have sufficient friction to prevent relative movement of paper in contact therewith. The uppermost sheet of paper is moved along a paper path through the separator to other parts of the printer. When the paper is engaged by the other operative parts of the printer the bias is removed and the rotation of the belt is interrupted.
REFERENCES:
patent: 3035834 (1962-05-01), Bottrell
patent: 3749395 (1973-07-01), Bazzarone et al.
patent: 3768803 (1973-10-01), Stange
patent: 3966189 (1976-06-01), Taylor et al.
patent: 4526358 (1985-07-01), Ura et al.
patent: 4572498 (1986-02-01), Shiozawa
patent: 5114134 (1992-05-01), Rasmussen et al.
Hewlett--Packard Company
Park Wonki K.
Potts Jerry R.
Terrell William E.
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