Methods and apparatus to estimate the thickness of a sheet stack
US6773004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Dec 6, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/27
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A finishing device which is configured to receive sheets of imaging media, forming a sheet stack, from an imaging apparatus includes a sheet stack tray to support the sheet stack. The finishing device also includes a sheet stack hold-down device which is operable from a first position to a variable second position. When the hold-down device is in the second position it presses the sheet stack against the sheet stack tray. The finishing device further includes a sensor which can detect the position of the sheet stack hold-down device when it is in the second position, to thereby provide an approximation of the thickness of the sheet stack, based on the then-current second position of the hold-down device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.