Printing apparatus or system
US4521805A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1982 |
| Grant date | Jun 4, 1985 |
| Priority date | — |
| Expiry date | Apr 21, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/33378
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A printing apparatus has at least one first recording head and at least one second recording head. These recording heads allow recording in binary mode, halftone mode, normal mode, and fine mode. A printing system has at least two recording units. One recording unit has a plurality of recording heads for recording in yellow, cyan and magenta, and the other recording unit has a recording head for recording in black. Upon a signal scanning operation, the printing system is capable of printing a plurality of copies at high speed and with good quality. A change in size of the original does not result in a problem since the apparatus is capable of feeding a recording paper sheet of corresponding size or printing only for a desired length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.