Drive system for thermal recording apparatus
US4091391A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1977 |
| Grant date | May 23, 1978 |
| Priority date | — |
| Expiry date | Mar 29, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/345
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A plurality of drive leads are taken out of the opposite outer ends of a thermal resistor assembly including a plurality of series-connected thermal resistor elements and junction points between adjacent ones of the thermal resistor elements, thereby dividing the drive leads to alternately belong to a first and a second set of drive leads. The drive leads of the second set of drive leads are further divided to alternately belong to a first and a second group. At least one of the drive leads of the first set of drive leads is selected in accordance with a given pattern and connected to recording signal input means. At the same time, one of the first and second group is selected in accordance with the given pattern, and a common power supply line associated with the selected group is connected to first potential means, a common power supply line associated with the group being connected to second potential means. A recording signal is made to flow through the common power supply line associated with the selected group to actuate the selected resistor element, while the recording signal flowing through the common supply line associated with the other group is suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.