Patent · US Expired

Printing apparatus

US5237645A · kind A · utility

8Cited by
2References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 28, 1991
Grant dateAug 17, 1993
Priority date
Expiry dateOct 28, 2011

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06K2215/008
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

In a printing apparatus for printing on printing paper, page by page, wherein print data of each of virtual pages are divided into blocks, print data of effective blocks are stored in an image memory, while print data of empty blocks are not stored in the image memory, and instead information indicating the emptiness is stored. During supply of the print data to a printing section, empty data are generated from the information on the emptiness, while effective data are read out of the image memory. The empty data and the effective data are assembled and supplied to the printing section.

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