Browse Prior Art Database

PAPER BAIL ACTUATOR

IP.com Disclosure Number: IPCOM000024154D
Original Publication Date: 1979-Oct-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 375K

Publishing Venue

Xerox Disclosure Journal

Abstract

A paper bail actuator mechanism is disclosed for use in an automatic paper feeder used with a printer subsystem of a word processing system. The paper bail actuator mechanism moves the paper bail of the printer to an in or out position with respect to the platen. With reference to the figure, the paper bail 11 is pushed out from the platen 12 until the front edge of the paper is past the bail 11. The bail 11 is then pulled in toward the platen 12 and allowed to reference against the platen 12.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

PAPER BAIL ACTUATOR

~ocer

Roger M~Gray

Proposed Classification

U~S~Ch 400/578 IntO Cl, B41j

22

2/

26

/9

Volume 4 Number 5 September/October 1979 677

[This page contains 1 picture or other non-text object]

Page 2 of 2

PAPER BAIL ACTUATOR (Cont~d)

A paper bail actuator mechanism is disclosed for use in an automatic paper feeder used with a printer subsystem of a word processing system. The paper bail actuator mechanism moves the paper bail of the printer to an in or out position with respect to the platen. With reference to the figure, the paper bail 11 is pushed out from the platen 12 until the front edge of the paper is past the bail 11. The bail 11 is then pulled in toward the platen 12 and allowed to reference against the platen 12.

The out position of the bail 11 allows paper feed without causing paper jams. The in position of the bail 11 holds the paper against the printer platen 12 to reduce paper noise and to allow typing to the bottom of the page.

The actuator mechanism is designed to allow manual positioning of the bail 11 for an operator override. This is accomplished by providing a slot 16 in member 15 which allows the operator to position the bail 11 against the platen 12 in the in

position and against the bail stop 19 in the out position when the member 15 is positioned in its neutral position.

A stepper motor 21 serves the dual function of driving the paper feed belt 22 through a one~way directional clutch 23 when the stepper motor 21 is driven

clockwise and of driving the bail actuator mechanism through a second one~way

directional clutch 24 when the stepper motor 21 is driven counterclockwise.

The sequence of operation begins with the host system pulsing the motor 21 counterclockwise until th...