Sheet feed apparatus and container for an imaging unit
US5879003A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1996 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Jul 3, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2405/1136
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet feed apparatus for an imaging device. The apparatus includes a drive roller, plurality of sheets of photosensitive material, a photographically inert liner having upper and lower surfaces and a container for storing the sheets of photosensitive material. Proper feeding of the sheets of material and a stable location of the liner are ensured by appropriate coefficients of friction between the respective components. The top surface (19b) of the liner (19) to the bottom surface (18B) of the sheets (18) has a first coefficient of friction and the bottom of one sheet (18) to the top of another sheet (18) has a second coefficient of friction, the second coefficient friction being less than the first coefficient of friction, whereby multiple feeds of the sheets are reduced. Preferably, the bottom surface (19c) of the liner (19) to the container (16) has a third coefficient of friction, the third coefficient of friction being greater than the first coefficient of friction, whereby the liner (19) is not fed with the last sheets (18). Also preferably, the roller drive surface (25e) to a top surface (18a) of a sheet (18) has a fourth coefficient of friction, the fourth coefficient of …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.