Browse Prior Art Database

VARIABLE SIZE INTERNAL TEST PATTERN GENERATION FOR PRINTER DIAGNOSTICS AND CUSTOMER SETUP

IP.com Disclosure Number: IPCOM000027324D
Original Publication Date: 1996-Apr-30
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 52K

Publishing Venue

Xerox Disclosure Journal

Abstract

Present Xerox printers produce internal diagnostic images sizes of 8.5 x 10.5 inches and 8.5 x 13.5 inches for 8.5 x 11 and 8.5 x 14 inch paper. Fuji Xerox customer requirements necessitate the ability to perform printer diagnostics on 7.17 x 10 inch paper, while some US market accounts are requesting internal patterns for 8 x 10 inch paper. The smallest image size (8.5 x 10.5 inches) generated by Xerox printing systems results in an image that is approximately 0.5 inch shorter than the 10 inch paper length. This leaves a 0.5 inch band of toner on the photoreceptor which must be removed by the cleaning assembly. Consequently, the diagnostics performed by a service representative can prematurely reduce the life of the cleaner. It proposed that the premature cleaner failure be corrected by reprogramming the internal test pattern generation firmware and application software to produce an image length that is variable depending on the size of the paper in the paper trays.

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 100% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

VARIABLE SIZE INTERNAL TEST PATTERN GENERATION FOR U.S. C1.355/203 PRINTER DIAGNOSTICS AND
CUSTOMER SETUP
Sue Kin Lam
Joel J. Lissade
Patrick 0. Waller

Proposed Classification

Int. C1. G03g 21/00

Present Xerox printers produce internal diagnostic images sizes of 8.5 x 10.5 inches and 8.5 x 13.5 inches for 8.5 x 11 and 8.5 x 14 inch paper. Fuji Xerox customer requirements necessitate the ability to perform printer diagnostics on 7.17 x 10 inch paper, while some US market accounts are requesting internal patterns for 8 x 10 inch paper. The smallest image size (8.5 x 10.5 inches) generated by Xerox printing systems results in an image that is approximately 0.5 inch shorter than the 10 inch paper length. This leaves a
0.5 inch band of toner on the photoreceptor which must be removed by the cleaning assembly. Consequently, the diagnostics performed by a service representative can prematurely reduce the life of the cleaner. It proposed that the premature cleaner failure be corrected by reprogramming the internal test pattern generation firmware and application software to produce an image length that is variable depending on the size of the paper in the paper trays.

XEROX DISCLOSURE JOURNAL - Vol. 21, No. 2 March/April 1996 133

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

Page 2 of 2

134 XEROX DISCLOSURE JOURNAL - Vol. 21, No. 2 MarcWApril 1996

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