Roll sheet conveying apparatus and sheet conveying control method
US9334137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2014 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | May 11, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/12
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
There are provided a roll sheet conveying apparatus and a sheet conveying control method wherein it is possible to control motor driving for conveying a roll sheet at appropriate timing to keep constant the tension of the sheet to be conveyed without performing a special identifying operation. For this feature, a relationship between friction load torque on the roll sheet and the mass of the roll sheet is previously stored in a storing unit, whereby the moment of inertia of the roll sheet can be detected at appropriate timing during printing. As a result, the optimum tension of the sheet to be conveyed can be maintained by appropriately adjusting the driving control of a sheet feeding motor and a conveying motor without performing a special identifying operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.