Patent · US Expired

Sample copy system for xerographic reproduction machine

US4181429A · kind A · utility

8Cited by
2References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 30, 1977
Grant dateJan 1, 1980
Priority date
Expiry dateAug 30, 1997

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/231
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A reproduction machine for making either single sided or duplex copies, and incorporating automatic document handler and sorter for handling original documents being copied and copies made. To enable copy quality to be checked, either when the machine is stopped or in the midst of a copy run, a sample copy is provided for. Where the sample copy is selected during a copy run, an accommodation in copy billing rate is made.

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