Browse Prior Art Database

INK JET PRINTER FOR IMPROVED PRINT QUALITY

IP.com Disclosure Number: IPCOM000027472D
Original Publication Date: 1997-Apr-30
Included in the Prior Art Database: 2004-Apr-08
Document File: 2 page(s) / 98K

Publishing Venue

Xerox Disclosure Journal

Abstract

Ink jet printers are largely based around dye based inks. The inks are generally low in viscosity so problems arising from the colorant wicking into the paper structure significantly limits the printable substrate range. Solid ink jet devices where the ink is at a considerably higher viscosity when it reaches the paper delivers increased substrate tolerance. A method of increasing the viscosity of liquid inks, before being delivered to the paper would provide print quality benefits.

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XEROX DISCLOSURE JOURNAL

INK JET PRINTER FOR IMPROVED PRINT QUALITY U. S. C1. 346/140 George A. Gibson
James R. Larson
Henry R. Till

Proposed Classification

Int. C1. GOlg 15/18

Ink jet printers are largely based around dye based inks. The inks are generally low in viscosity so problems arising from the colorant wicking into the paper structure significantly limits the printable substrate range. Solid ink jet devices where the ink is at a considerably higher viscosity when it reaches the paper delivers increased substrate tolerance. A method of increasing the viscosity of liquid inks, before being delivered to the paper would provide print quality benefits.

Liquid ink or immersion development (LID) technology has faced a similar challenge. It has been found that concentrating a developed LID image by use of vacuum blotters followed by transfix yields greatly enhanced printhnage quality and improved substrate latitude. Conventional LID blotters and intermediate belts have long lives, and must be frequently or continuously cleaned so that the level of cost and complexity not appropriate for low cost printers.

An alternate approach for ink jet applications would be to use solvent absorption to concentrate the ink. While it will be readily appreciated that an analogous system could be described for aqueous ink, a system appropriate for hydrocarbon based particulate inks is particularly appropriate for use in conjunction with a disposable absorbent belt.

A suitable hydrocarbon carrier liquid absorbent belt is comprised of a low molecular weight silicone rubber coated on a polyester based...