Transparency detection in a tray
US6217168A · kind A · utility
33Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Feb 24, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/009
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printing system that includes a transparency film detector having a light source for illuminating a sheet of input media and a detector for detecting whether a portion of the light provided by the light source propagated by internal reflection within the volume of the illuminated input media sheet is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.