Browse Prior Art Database

Ink Jet Fog Collector Cleaning Wire

IP.com Disclosure Number: IPCOM000052385D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 50K

Publishing Venue

IBM

Related People

Blanck, TW: AUTHOR

Abstract

The IBM 6640 ink jet printer employs a fog collector device such as the carrier shield 11 illustrated in Fig. 1, the carrier shield being mounted on a moving carriage or carrier 12 (U.S. Patent 4,024,548). The carrier shield includes a small diameter opening 13 through which the printing drops 14 pass for impingement upon the print receiving medium or paper 15. Field experience with these systems has shown that the opening 13 becomes obstructed by paper fibers or dust 16, adhering to the wet or rough surface 17 of the carrier shield 12. A build up of the paper fibers or dust 16 over a period of time may obstruct the opening 13, causing print failure. Disclosed is an automatic means of removing any paper or fiber dust 16 by inhibiting obstruction of the opening 13.

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Ink Jet Fog Collector Cleaning Wire

The IBM 6640 ink jet printer employs a fog collector device such as the carrier shield 11 illustrated in Fig. 1, the carrier shield being mounted on a moving carriage or carrier 12 (U.S.

Patent 4,024,548). The carrier shield includes a small diameter opening 13 through which the printing drops 14 pass for impingement upon the print receiving medium or paper 15. Field experience with these systems has shown that the opening 13 becomes obstructed by paper fibers or dust 16, adhering to the wet or rough surface 17 of the carrier shield 12. A build up of the paper fibers or dust 16 over a period of time may obstruct the opening 13, causing print failure. Disclosed is an automatic means of removing any paper or fiber dust 16 by inhibiting obstruction of the opening 13.

Referring now to Fig. 2, a pivoting wire assembly 20 is mounted on the carrier shield 11 and serves to clean or brush the fibers from the opening 13 to inhibit its obstruction thereof. As shown in Fig. 2, the wire 20 is mounted over a pivot-like stud 21 and includes an extension 20a which passes through the opening 13 in the carrier shield 11. As illustrated, the wire 20 is loaded by a spring 22 so that it is out of the way of the printing drops 14 during normal printing. Periodically, when the carrier 12 moves to the right frame of the machine to do a stream calibrate check, an extension 20b of the wire 20 contacts the frame, causing the wire 20 to pivot about the st...