Franking apparatus and printing means thereof
US6065883A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1998 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Sep 2, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00556
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and apparatus is disclosed for controlling energization of a take-up motor driving a take-up spool of used ink ribbon in thermal printing apparatus. Prior to a printing cycle, the take-up motor is energized to rotate the take-up spool until ternsion in the ink ribbon caused rotation of an ink ribbon supply spool. The take-up spool is then rotated a predetermined amount and resultant rotation of the supply spool is determined by sensing means. A function dependent upon the rotation of the supply spool is determined and used during subsequent operation of the apparatus to control energization of the take-up motor such as to wind the used riobbon onto the take-up spool with a desired amount of tension in the used ribbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.