Patent · US Expired

Image forming apparatus having a memory and two operating modes, and method of using same

US5491557A · kind A · utility

19Cited by
4References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 22, 1992
Grant dateFeb 13, 1996
Priority date
Expiry dateDec 22, 2012

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N2201/3288
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An image forming apparatus comprises a document transport mechanism for transporting a document to a reading station, an image reading unit for reading an image of the document at the reading station and for outputting image data descriptive of the image of the document, a image forming unit for performing an image formation based on the image data, a memory for storing the image data, a data writing unit for transferring and writing the image data to the memory, and a data reading unit for reading the image data from the storage means in readiness for a transfer of the image data to the image forming unit. A control unit is provided for controlling a data write operation, performed by the data writing unit, and a data read operation, performed by the data reading unit, so as to be accomplished independently and in parallel relation with each other.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.