Sheet-feeding apparatus with selectable unit feed and coefficient therefor
US4820069A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Jun 10, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/42
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a printing apparatus such as a typewriter which prints data from an inputting means on a printing medium. In the case of the normal printing apparatus, a feed amount setting means is installed which sets the amount of feed of line feeding or space feeding for relatively moving a printing head and the printing medium, and for the line feeding or for the space feeding, a desired one among about four kinds of amounts of feed is required to be selected. This printing apparatus comprises a unit feed amount selecting means for selecting a unit amount of feed, a feed amount setting means which selects a coefficient to multiply the unit amount of feed selected by this unit feed amount selecting means and sets the actual amount of feed, and a controlling means controlling a feeding mechanism so that the amount of feed of the relative movement is the amount of feed set by the feed amount setting means. Lamps are lit to indicate the feed amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.