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Method of Adjusting Print Hammer Timing

IP.com Disclosure Number: IPCOM000041148D
Original Publication Date: 1987-Oct-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Fitzgibbons, PJ: AUTHOR [+2]

Abstract

Forms of uneven thickness can be printed with more uniform quality by incorporating a program in the printer enabling variable timing control of hammer impact within a print line according to forms thickness.

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Method of Adjusting Print Hammer Timing

Forms of uneven thickness can be printed with more uniform quality by incorporating a program in the printer enabling variable timing control of hammer impact within a print line according to forms thickness.

Continuous forms are frequently processed that include across only part of their width a thicker material or more layers. These differences alter the time of hammer impact and degrade print quality on one portion of the forms. Such differences are eliminated by a utility program through which an operator changes hammer impact time for one part of the print line with respect to the other.

As an example, assume that a print line having 132 hammers is divided in half. Those hammers on the left side are to be set to an adjustment of -4 while those on the right are to be +4. Operator action and display response are as follows: Operator Display

Enters C-6. Set center print

position.

Enters 66. Set left hammer

adjustment.

Uses hammer adjusting key Set right hammer adjustment.

to set "-4" and enters.

Uses hammer adjusting key Left -4 Right +4

to set "+4" and enters.

Enters "Start".

Printer is now ready.

Disclosed anonymously.

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