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BUNDLED THERMAL INK JET CUSTOMER REPLACEABLE UNIT FOR INK, MAINTENANCE FLUID AND WASTE

IP.com Disclosure Number: IPCOM000027824D
Original Publication Date: 2000-Feb-29
Included in the Prior Art Database: 2004-Apr-09
Document File: 2 page(s) / 102K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a means for bundling fluids in a Thermal Ink Jet (TIJ) Customer Replaceable Unit (CRU). The TIJ process requires the use, replenishment, and waste disposal of ink and maintenance fluid. Bundling of the ink supply, the maintenance fluid supply, and the waste fluid supply into a single CRU offers a novel approach to an important customer interface.

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XEROX DISCLOSURE JOURNAL

BUNDLED THERMAL INK JET CUSTOMER REPLACEABLE UNIT FOR INK, MAINTENANCE FLUID AND WASTE David G. Anderson
Michael A. Garofalo
Brian S. Hilton

Proposed Classification
U. S. C1. 347/104 Int. C1. B41j 02/01

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16

Disclosed is a means for bundling fluids in a Thermal Ink Jet (TIJ) Customer Replaceable Unit (CRU). The TIJ process requires the use, replenishment, and waste disposal of ink and maintenance fluid. Bundling of the ink supply, the maintenance fluid supply, and the waste fluid supply into a single CRU offers a novel approach to an important customer interface.

As TIJ technology moves up-market, the functional and reliability requirements placed on the marking process become more demanding.

Xerox Disclosure Journal - Vol. 25, No. 1 January/February 2000 1

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BUNDLED THERMAL INK JET CUSTOMER REPLACEABLE UNIT FOR INK, MAINTENANCE FLUID AND WASTE (Cont'd)

A current maintenance subsystem makes use of maintenance fluid for humidifying the print element caps and for use in accomplishing a wet wipe of the front face for jet recovery. Normal usage and evaporation from the system requires that the customer periodically replenish this fluid.

Ink, the major consumable process in the TIJ process also requires replenishment by the customer. Current black ink strategy makes use of a 314 liter CRU requiring replacement on a one-month interval under average coverage of 20,000 prints per month.

Vacuum priming and initial loading of the print element ink jet manifolds result in the need for a waste fluid reservoir. Disposal of this waste fluid repres...