Computer controlled timer for main drive pulse of form feed motor
US4998835A · kind A · utility
13Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1989 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Nov 14, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device for feeding a continuous form in a printer, the device having a timer for controlling the width of a drive pulse for a main motor feeding the form. The timer is formed of a plurality of timers controlled by software. These plurality of timers being, for example, three timers measuring a constant time, and one timer measuring a variable time which is varied in accordance with a feeding speed of the form. The width of the drive pulse is determined by summing up a time obtained by multiplying the constant time by three and adding the variable time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.