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:
Oct. 04, 2011
Filed:
Oct. 10, 2008
Masahiko Yamada, Omi-mura, JP;
Masahiko Yamada, Omi-mura, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A recording medium detection method uses transmission and reflection photosensors to correctly detect if a recording medium having labels affixed to a liner is in the transportation path. The label printerhas a reflection photosensorand a transmission photosensordisposed to the transportation path at positions separated the distance Lbetween the labels. Labelson the recording mediumcan always be detected by either or both the reflection photosensorand the transmission photosensor. Because the reflection photosensoris downstream from the transmission photosensor, a situation in which a black markis at the detection position of the reflection photosensorand reflection is not detected and only the lineris at the detection position of the transmission photosensorand transmission of the detection beam is detected is avoided. Detecting transmission without detecting reflection of the detection beam therefore only occurs when the recording mediumis not in the transportation path A.