Printer with validation paper feeding mechanism
US5472287A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1995 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Jan 19, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/50
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printer having a validation paper feeding mechanism in which the validation paper feed is controlled by a single solenoid and only the validation paper feed can be effected even when a cut or continuous paper is set. A ratchet wheel and a validation roller are mounted on the rotatable shaft via a one-way clutch. The one-way clutch selectively transmits a torque of the rotatable shaft to the validation roller in the direction of the validation paper feed. The validation roller has an arcuate circumferential surface for feeding the validation paper and a chord flat surface for inserting the validation paper. The armature is angularly moved between a first position where it engages the positioning projection of the ratchet wheel for determining an initial position of the validation roller and a second position where it engages the pawls of the ratchet wheel for stopping the validation roller at a plurality of predetermined positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.