Browse Prior Art Database

DOCUMENT REGISTRATION MECHANISM

IP.com Disclosure Number: IPCOM000024854D
Original Publication Date: 1982-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 99K

Publishing Venue

Xerox Disclosure Journal

Abstract

Apparatus for automatically registering or positioning a document 1 on a copier platen 2. The proposal includes the step of sensing when the document 1 reaches a specific spot on the platen 2 and stopping its movement with a solenoid actuated rubber foot 13 which contacts the document. Use of this registration technique eliminates the need for a movable registration finger which must be periodically moved into and out of the path of document travel.

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L 'EROX DISCLOSURE JOURNAL

DOCUMENT REGISTRATION MECHANISM Proposed Classification Denis J. Stemmle U.S. C1. 355/17

Int. CI. G03g 15/00

Apparatus for automatically registering or positioning a document 1 on a copier platen 2. The proposal includes the step of sensing when the document 1 reaches a specific spot on the platen 2 and stopping its movement with a solenoid actuated rubber foot 13 which contacts the document. Use of this registration technique eliminates the need for a movable registration finger which must be periodically moved into and out of the path of document travel.

Figure 1 shows a perspective view of a portion of the platen 2 with a document moving along an edge guide 3 toward a registration position indicated by a dotted line 4 oriented perpendicularly to the guide 3. Initially, the document is driven onto the platen and against the edge guide 3 by a suitable drive mechanism (not shown) and then moved along the guide 3 toward the registration position 4. One such drive mechanism comprises a dual paddle wheel arrangement which intermit- tently drives the document toward the line 4 by first causing the document 1 to contact the edge guide 3 and then moves the document along the guide 3 toward this registration position 4.

Volume 7 Number 3 May/June 1982 183

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DOCUMENT REGISTRATION MECHANISM (Cont'd)

Mounted above the platen 2 is a light source 5 which directs a beam 6 to a point on the platen 2 slightly ahead of the registration position. When the document 1 interrupts the beam 6, the beam is...