Image processing apparatus for determining the presence or absence of an image on each side of a plurality of originals prior to producing two-sided copies of the originals to avoid producing any copies with blank sides
US4839740A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1986 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Apr 2, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus has an automatic document feeder for feeding one- and/or two-sided orginals, an image reader such as a CCD for reading images on the originals, an image determining unit for determining the presence or absence of an image on an original, a convey control unit for controlling convey of originals and recording media in accordance with the determination result of the image determining unit, a two-sided copy unit for producing two-sided copies and a sorter for storing the copies. Images of originals including one- and two-sided originals can be reproduced sequentially on both sides of recording media, without omitting an image on either side in accordance with determination results from the image determining unit. The image determining unit can determine the presence or absence of an image on one or more originals while the original is located at a reading position and prior to a copy being produced thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.