Photographic printing apparatus with reduced number of input means for entering correction values

US3963344A · kind A · utility

Assignee

• AGFA-Gervaert AG · DE

Inventors

• Friedrich Hujer
• Volker Weinert
• Harald Fengler · Taufkirchen, DE

Key dates

• Filing date: Oct 17, 1974
• Grant date: Jun 15, 1976
• Expiry date: Oct 17, 1994

Classification

• Technology area (CPC G): Physics
• CPC primary: G03B27/72
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Each correction factor can assume one of a plurality of values and the selected value is to be stored in the printing apparatus. A plurality of input keys is provided, each furnishing a selected value upon activation. Activation of the key applies the input signal signifying the chosen value to the storage inputs of a plurality of storages, one for each correction factor. Further, activation of each key advances a counter by one step. The counter output enables each of the storages in turn.