Browse Prior Art Database

MODULAR DRIVER FOR IMAGE SCANNERS

IP.com Disclosure Number: IPCOM000026634D
Original Publication Date: 1993-Feb-28
Included in the Prior Art Database: 2004-Apr-06
Document File: 4 page(s) / 121K

Publishing Venue

Xerox Disclosure Journal

Abstract

In document image scanners, movement of the scanner carriage is critical if scanning is to be accomplished accurately and without introducing errors and other artifacts. Uncontrolled carriage motions resulting, for example, from vibration, free play, slippage, uneven tracking, irregular speeds, etc. can result in distortion during scanning with resulting degradation and inaccuracies.

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XEROX DISCLOSURE JOURNAL

MODULAR DRIVER FOR IMAGE SCANNERS US. C1.310/13 Richard M. Baran

Proposed Classification

Int. C1. H02K 41/02

Randall C. Ryon

30 I

12

-

FIG. I

XEROX DISCLOSURE JOURNAL - Vol. 18, No. 1 January/February 1993 7

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MODULAR DRIVER FOR IMAGE SCANNERS(Cont'd)

24

20 19

18

FIG. 2

FIG. 3

8 XEROX DISCLOSURE JOURNAL - Vol 18, So. 1 January February 1993

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

Page 3 of 4

MODULAR DRIVER FOR IMAGE SCANNERS(Cont'd)

In document image scanners, movement of the scanner carriage is critical if scanning is to be accomplished accurately and without introducing errors and other artifacts. Uncontrolled carriage motions resulting, for example, from vibration, free play, slippage, uneven tracking, irregular speeds, etc. can result in distortion during scanning with resulting degradation and inaccuracies.

In the image scanner shown in drawing Figures 1-3, the scan carriage 12 of a digital scanner is supported for reciprocating scanning movement relative to a transparent platen 14 on which the image bearing documents 16 to be scanned rest. An elongated frame extrusion 17 having a generally U-shape with base 18 and sides 19, 20. End plates 21, 22 have bearings 65 which rotatably support a leadscrew 79 for driving carriage 12. A spring 68 tensions lead screw 79 against movement in the axial direction.

Scan carriage 12 is supported in extrusion 17 for reciprocating motion on longitudi...