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AN ARRANGEMENT FOR ENCODING THE IMPACT ENERGY FOR ASSOCIATED CHARACTERS IN A SERIAL PRINTER

IP.com Disclosure Number: IPCOM000023107D
Original Publication Date: 1976-Oct-31
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 206K

Publishing Venue

Xerox Disclosure Journal

Abstract

This relates to controlling and varying the hammer strike force in a printer using a print wheel with characters supported by spokes radiating from a central hub. Due to the shape of some characters, it is desirable to strike these characters with more or less force than most of the other characters. To achieve this control, it is proposed that a code be placed along each of the spokes, the code controlling the force with which the character supported by that spoke is struck. When a character is properly positioned for printing, the code is read and decoded to drive the hammer with the correct energy. This would allow the hammer impact energy for each character of each font to be selected from the total range of possible energies from the printer and allow this selection to be made at the time of font design and to allow the encoder to be molded as an integral part of the print wheel. The encoder could be implemented by optical means, magnetic means, electrostatic means or a mechanical sensing arrangement.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

AN ARRANGEMENT FOR ENCODING Proposed Classification
THE IMPACT ENERGY FOR U.S. Cl. 197/54
ASSOCIATED CHARACTERS mt. Cl. B41j 1/32
IN A SERIAL PRINTER
Gordon Sohi

This relates to controlling and varying the hammer strike
force in a printer
using a print wheel with characters
supported by spokes radiating from a central hub. Due to
the shape of some characters, it is desirable to strike
these characters with more or less force than most of the
other characters. To achieve this control, it is proposed
that a code be placed along each of the spokes, the code
controlling the force with which the character supported
by that spoke is struck. When a character is properly
positioned for printing, the code is read and decoded to
drive the hammer with the correct energy. This would allow
the hammer impact energy for each character of each font to
be selected from the total range of possible energies from
the printer and allow this selection to be made at the time
of font design and to allow the encoder to be molded as an
integral part of the print wheel. The encoder could be
implemented by optical means, magnetic means, electrostatic
means or a mechanical sensing arrangement.

Volume 1 Numbers 9/10 September/October 1976 25

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26 XEROX DISCLOSURE JOURNAL

Volume 1 Numbers 9/10 September/October 1976

[This page contains 1 picture or other non-text object]