Method and apparatus for clean convenient copy sheet jam clearance in an electrostatographic machine
US5815766A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1997 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Mar 31, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/70
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An automatic apparatus and method for controlling and enabling clean and convenient clearance of a stalled copy sheet from a copy sheet handling system of an electrostatographic reproduction machine. The automatic apparatus and method include a programmable controller for declaring detection of an error in copy sheet movement; position determiner for determining a first actual position of the copy sheet at a moment of detection of an error. The position determiner means includes a first sensing device mounted upstream of an image transfer station of the machine relative to a direction of sheet movement, and a second sensing device, mounted downstream of the first sensing device relative to the direction of sheet movement. The automatic apparatus and method also include sheet control and moving device connected to the programmable controller for changing a position of the copy sheet from the first actual position to one of a downstream and an upstream new and convenient sheet removal positions, depending on the first actual position of the copy sheet relative to the first sensing device and the second sensing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.