Electronic printer mechanism with movable printhead assembly
US4500217A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1982 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Nov 12, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An electronic printer mechanism having a movable printhead assembly , wherein the printhead is a matrix of selectively heatable semiconductor mesas for producing dot matrix characters one line at a time on a paper medium. The electronic printer mechanism is constructed with a sectional housing including upper and lower housing sections which are releasably secured together to define an interior chamber for receiving components of the electronic printer. The lower housing section is provided with complementary sets of shaft-receiving recesses such that drop-in assembly of components with respect to the lower housing section as received in respective sets of the recesses prior to securement of the upper and lower housing sections together is accomplished. One component assembly comprises an operating shaft on which the printhead assembly including a carrier member fixedly supporting a printhead is mounted for transversing movement therealong. A gear train assembly driven by a rotary power shaft from a motor imparts rotation to the operating shaft and includes a timing control gear for sequentially stepping through the operating cycle of the printer and a paper-advancing gear arrangem…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.