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PRINTHEAD MAINTENANCE CONFIGURATION

IP.com Disclosure Number: IPCOM000026944D
Original Publication Date: 1994-Aug-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 98K

Publishing Venue

Xerox Disclosure Journal

Abstract

A problem encountered while integrating an ink jet array to a vacuum or an electrostatic belt paper transport is the required access for printhead maintenance functions. These functions include: vacuum priming, capping, wiping, drop sensing, and a spit trough for interdocument spitting of all jets. Additionally, a vacuum platen is required in the same zone, to control paper flatness and positioning in the print zone located beneath the printbar assembly.

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XEROX DISCLOSURE JOURNAL

PRINTHEAD MAINTENANCE Proposed Classification CONFIGURATION U.S. C1.346/140R David G. Anderson Int. C1. Gold 15/18

XEROX DISCLOSURE JOURNAL - Vol. 19, No. 4 July/August 1994 285

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PRINTHEAD MAINTENANCE CONFIGURATION(Cont'd)

A problem encountered while integrating an ink jet array to a vacuum or an electrostatic belt paper transport is the required access for printhead maintenance functions. These functions include: vacuum priming, capping, wiping, drop sensing, and a spit trough for interdocument spitting of all jets. Additionally, a vacuum platen is required in the same zone, to control paper flatness and positioning in the print zone located beneath the printbar assembly.

Proposed is an ink jet maintenance configuration, in which the various sides of a rotating, multifaceted assembly each hold a separate mechanism to accomplish all of the various functions. A triangular design is shown in the accompanying figure, wherein an ink jet maintenance assembly 10 is comprised of a vacuum maintenance station at side A, a vacuum print platen at side B, and a capping station at side C. The vacuum maintenance station at side A further comprises rails 12 and 13, along with vacuum nozzles and drop detectors 24, 25, 26, and 27. The vacuum print platen at side B includes spit troughs 29, 31, 33, and 35 for interdocument clearing of the nozzles. The capping station at side C includes elas...