Browse Prior Art Database

MULTIFUNCTION ILLUMINATION SYSTEM

IP.com Disclosure Number: IPCOM000025318D
Original Publication Date: 1984-Aug-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 65K

Publishing Venue

Xerox Disclosure Journal

Abstract

The figure shows a document reproduction system 10 which uses a single lamD 12 to enable several system functions. A document 14, placed on transparent platen 16 is scanned by lamp 12 moving in conjunction with linear lens 18. A line-by-line image of the document is incrementally projected onto the surface of photo-receptor belt 20 forming a latent image of the document.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 82% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

MULTIFUNCTION ILLUMINATION SYSTEM Proposed Classification Charles J. Urso
G03b Cl. Int. U.S. Kenneth 1V. Altfather Cl. 355/67 27/54

Volume 9 Number 4 July/August 1984 277

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

Page 2 of 2

MULTIFUNCTION ILLUMINATION SYSTEM (Cont'd)

The figure shows a document reproduction system 10 which uses a single lamD 12 to enable several system functions. A document 14, placed on transparent platen 16 is scanned by lamp 12 moving in conjunction with linear lens 18. A line-by-line image of the document is incrementally projected onto the surface of photo- receptor belt 20 forming a latent image of the document.

Lamp 12, during the scan mode, operates at 100% of output to obtain optimum exposure at the image forming area of belt 20. At the end of scan, the lamp power is turned off and the lamp and lens are returned to the start-of-scan position. After reaching this position, the lamp power is turned on at a time and energy level sufficient to accomplish erase of the charged photoreceptor. For areas that exist between the latent document images (interdocument gap), lamp 12 has a third function; to provide a controlled exposure and subsequent developed density that is used in a feedback control system to regulate charging and/or development. As shown in the figure, a single density test patch 22 is attached beneath platen 16. This patch is alternately imaged within the interdocument gaD during the time t...