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Print Band Cartridge Having the Band in a Self-Contained Housing

IP.com Disclosure Number: IPCOM000034771D
Original Publication Date: 1989-Apr-01
Included in the Prior Art Database: 2005-Jan-27
Document File: 3 page(s) / 118K

Publishing Venue

IBM

Related People

Cakerice, L: AUTHOR [+6]

Abstract

This article describes a cartridge for a dot matrix printer print band in which the dot-producing elements are carried on an endless band contained in the cartridge. The cartridge totally encloses the tracking system and registration system for the print band, and facilitates proper installation. (Image Omitted) The cartridge eliminates the need for the operator to touch the print band, provides means for maintaining the proper tension of the band relative to the machine to insure accurate dot placement, and is equipped with means for lubricating the print band. As shown in Fig. 1, the cartridge comprises an upper 1A and lower 1B housings, a drive rotor assembly 2, an idler rotor assembly 3 and a lubricating assembly 4.

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Print Band Cartridge Having the Band in a Self-Contained Housing

This article describes a cartridge for a dot matrix printer print band in which the dot-producing elements are carried on an endless band contained in the cartridge. The cartridge totally encloses the tracking system and registration system for the print band, and facilitates proper installation.

(Image Omitted)

The cartridge eliminates the need for the operator to touch the print band, provides means for maintaining the proper tension of the band relative to the machine to insure accurate dot placement, and is equipped with means for lubricating the print band. As shown in Fig. 1, the cartridge comprises an upper 1A and lower 1B housings, a drive rotor assembly 2, an idler rotor assembly 3 and a lubricating assembly 4. The upper housing 1A contains printed information 5 as to band type and includes louvers 6 to allow air to circulate and cool the actuators in the machine. The upper 1A and lower 1B housings also include drive rotor assembly apertures 7A, 7B and idler rotors are inserted. rotor assembly apertures 8A, 8B through which the drive and idler rotors are inserted. Referring to Fig. 2, the drive rotor assembly 2 can be seen in cross-section. It includes a lower flange 10, a drive sprocket 9 and the body of the rotor 12. The drive rotor 12 is crowned which urges the print band 13 against the lower flange 10 and vertically registers the print band 13 within the cartridge. The drive sprocket 9 meshes with a toothed pattern on the band 13 to propel the band and provide a fixed orientation...