Method of lead edge detection in an inkjet printer
US8395784B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2010 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Sep 14, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/0095
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of detecting an edge of a piece of media in a printer, the method includes providing a carriage for moving a printhead and a photosensor along a carriage scan path; providing a light source; providing a light guiding element having a first end that is aimed at a first predetermined position along a media advance path between a media input region and a printing region and a second end that is aimed at a second predetermined position along the carriage scan path, moving the carriage to an edge-detection position such that the second end of the light guiding element is aimed at the field of view of the photosensor; directing light from the light source toward the first predetermined position; obtaining a signal generated in response to light received in the photosensor; and analyzing the signal to detect the edge of the piece of media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.