Label producing apparatus with optical sensor and external light correction
US8585303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2011 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Feb 5, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/46
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This disclosure discloses a label producing apparatus comprising: a housing; a feeding device that feeds a label tape; a printing device that prints desired print; an optical sensor comprising a light projecting device and a light receiving device capable of outputting a detected voltage value; a light-on control portion that controls said optical sensor so that said light projecting device is turned on; an initial value storage device that stores a predetermined initial threshold value; a threshold value correction portion that calculates a corrected threshold value using said initial threshold value; a mark detecting portion that detects a positioning mark by an arrival of said detected voltage value at said corrected threshold value after calculation of said corrected threshold value; a feeding control portion that controls said feeding device; and a print control portion that controls a print operation of said printing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.