The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 1995
Filed:
Aug. 05, 1993
Applicant:
Inventors:
Roger M Gray, Lewisville, TX (US);
Warren K Shannon, Highland Village, TX (US);
Assignee:
Taurus Impressions, Inc., Mountain View, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
4001442 ; 400174 ; 101 9319 ;
Abstract
In a print wheel encoding scheme, signs such as reflector strips are arranged on an encoder ring along the print wheel petals. One strip is provided at each petal. The strips are grouped into groups of three or more petals. Each group starts with a reflective strip and terminates with a non-reflective strip, or vice versa. The strips are read by a single optical sensor to provide a reliable mechanism for reading the print wheel I.D., homing the print wheel and detecting print wheel error conditions such as jams or mispositioning.