Original document reading device
US7904016B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2008 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Jun 27, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/605
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
When an original document is placed on the lift tray, a timer is reset and starts counting a predetermined time. Whether an alignment device is moved to adjust the original documents loaded on the lift tray in, for example, the widthwise direction transverse to the transportation direction is then determined. If a change in the detected width of the original documents is detected, the timer is reset and started again. If there is no change in the detected width of the original documents, a control waits for the timer to time out. If the timer reaches the predetermined time, the lift tray is driven up by the lift motor and rises until the top limit sensor turns on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.