Patent · US Expired

Photographic printing apparatus

US4447146A · kind A · utility

9Cited by
3References
19Claims
0Family size

Assignees

Inventors

Key dates

Filing dateMar 30, 1982
Grant dateMay 8, 1984
Priority date
Expiry dateMar 30, 2002

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03D13/003
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A printing apparatus includes a paper cutter, a hole puncher and a guide clip which engages a strip of printed paper for conveyance to a developer. As the printer operates intermittently while the developer operates continuously, a reservoir or buffer zone is provided for the paper between the two. A mechanism for storing guide clips automatically delivers and orients a guide clip so as to engage a transported paper strip for further conveyance therewith by means of a chain conveyor or the like. As the printer may move vertically independently of the fixed developer, the conveyor is made expandible so as to accommodate differences in the conveyance distance.

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