Printer having main and auxiliary pin tractor units
US4988226A · kind A · utility
8Cited by
4References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1989 |
| Grant date | Jan 29, 1991 |
| Priority date | — |
| Expiry date | Oct 13, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/26
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printer has a main pin tractor unit fixedly provided interiorly of a printer housing and an auxiliary pin tractor unit detachably mounted on the printer. The auxiliary pin tractor unit is mounted in a position immediately above the main pin tractor unit so that when the axuiliary pin tractor unit is detached from the printer, the main pin tractor unit is exposed to allow a continuous print sheet to be readily loaded on the main pin tractor unit. To selectively drive the main and the auxiliary pin tractor units with a single motor, a changeover mechanism is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.