Head up-down mechanism in printer
US6011572A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1998 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Dec 9, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J25/304
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A head up-down mechanism in a printer is to be provided wherein, by a simple construction, a carriage is returned up to a printing start position while a thermal head is spaced apart from a platen and at the same time there is performed a paper feed operation and which can thereby improve an effective printing speed. To this end the head up-down mechanism includes a head up-down lever with a thermal head mounted thereon at a position opposed to a platen, the head up-down lever being supported pivotably by a carriage which reciprocates along the platen between both side plates spaced a predetermined distance from each other, an urging member for urging the head up-down lever in a direction in which the thermal head comes into abutment against the platen, and a head up-down cam which is moved by abutment thereof against each of the side plates and which causes the head up-down lever to turn so that the thermal head comes into or out of contact with the platen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.