Paper feeder apparatus for use with image forming apparatus
US6523821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2001 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Feb 21, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2406/323
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A feeder apparatus arranged on a side of a main body of an image forming apparatus is provided with a top door and a vertical door. The top door is provided in an opening defined above a sheet stacker, and the vertical door is provided in an opening defined on a side of the sheet stacker to enable an operator to replenish sheets inside the feeder apparatus. Switches are provided to detect as to whether the top door or the vertical door is opened. The feeder apparatus is constructed in such a manner that upward movement of the sheet stacker is suspended when the top door is detected to be opened and that upward and downward movement of the sheet stacker is suspended when the vertical door is detected to be opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.