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. 27, 1980
Filed:
Apr. 07, 1978
Applicant:
Inventors:
Sen L Lee, Hayward, CA (US);
Franklin B Shah, Fremont, CA (US);
John W Jamieson, San Leandro, CA (US);
Assignee:
Qume Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ;
U.S. Cl.
CPC ...
4001442 ; 400 82 ; 400149 ; 400585 ;
Abstract
An impact printer of the daisywheel type mechanically links together two daisywheel printer carriages so that the total number of different characters that can be printed is doubled. Suitable coordination logic provides for operation in a first concurrent (or parallel) mode where the user's software looks ahead to provide for continuous printing along a single line. The other mode of operation is sequential where the twin print heads are substantially transparent to the user's system and thus the appropriate print head automatically positions itself to a printing position.