Sheet stacking apparatus and image forming system
US10800631B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2019 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Feb 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00915
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
To enable a bunch of sheets to be reliably discharged to a stack tray, also in the case where weight of the bunch of sheets formed on a processing tray is large, a post-processing control section receives information on an ink discharge amount, the number of sheets, sheet type, and printing mode (two-side/one-side) in printing on sheets from a main body control section of an image forming unit A, in forming a bunch of sheets on the processing tray. The control section thereby recognizes weight of a bunch of sheets formed on the processing tray, and when the section determines that the weight is heavier than predetermined weight, decreases a rotation velocity of a drive motor of a sheet bunch transport means, or increases a current amount applied to the drive motor. By this means, torque of the motor is increased, and the bunch of sheets is reliably discharged to the first stack tray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.