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:
Dec. 03, 1985
Filed:
Apr. 12, 1985
Rafn Stefansson, San Marino, CA (US);
Bell & Howell Company, Chicago, IL (US);
Abstract
Methods and apparatus for printing information on a sheet of material provide a circular platen with a first peripheral portion having a first radius and a second peripheral portion having a second radius exceeding the first radius. Such circular platen is mounted for rotation about an axis adjacent a print head. A sheet entry gap is provided between the platen and the print head by moving the first peripheral portion about the mentioned axis into first proximity to the print head, and a sheet is entered into such entry gap between the platen and the print head. A print gap relative to the print head is provided by moving the second peripheral portion of the platen about the mentioned axis into second proximity to the print head at the entered sheet. Since the mentioned first proximity is larger than the latter second proximity, jamming of the entering sheet at the print head is effectively avoided. On the other hand, the resulting smaller proximity readily permits realization of whatever small print gaps are typically required by dot-matrix print heads or other printing devices which print the desired information on the sheet at the print gap.