Browse Prior Art Database

Journal Spool Accessory

IP.com Disclosure Number: IPCOM000038191D
Original Publication Date: 1989-Dec-01
Included in the Prior Art Database: 2005-Jan-31
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Alexander, DE: AUTHOR [+4]

Abstract

Described is an accessory which is mounted on the take-up spool of a printer. The accessory increases the effective diameter of the take-up spool and reduces the time required to position a print line to the print head.

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This is the abbreviated version, containing approximately 85% of the total text.

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Journal Spool Accessory

Described is an accessory which is mounted on the take-up spool of a printer. The accessory increases the effective diameter of the take-up spool and reduces the time required to position a print line to the print head.

The figures 1 and 2 show a schematic of the printer with accessory displaced from the take-up spool. When the printer is operational, the accessory is seated on the take-up spool and supports the paper as it is transported from the paper supply roll to the take-up spool. The printer has a journal station which consists of a take-up spool (to wind up the journal receipt after printing) driven by a journal motor, and an emitter system which measures the linear motion of the paper (to ensure that the paper is feeding--a security requirement--and to measure when to turn the stepper motor off). The time required to feed a single line of print varies based upon the amount of paper on the take-up spool. When paper is first threaded into the take-up spool at the beginning of the day or shift, the effective diameter of the spool is very small, requiring more time to feed a single line of print. As the take-up spool fills with paper, the effective diameter increases, reducing the time required to feed the paper. A microprocessor (not shown) receives signals from the emitter system, turning off the journal stepper motor when the proper number of emitter pulses have been received indicating a line feed.

The accessory includes design fe...