Pneumatic braking device for a recording substrate

US5627633A · kind A · utility

Assignee

• Siemens Nixdorf Informationssysteme AG · DE

Inventors

• Joachim Hoffmann · Esslingen am Neckar, DE
• Edmund Creutzmann · Borgo San Lazzaro, DE
• Walter Kopp · Taufkirchen, DE
• Helmut Berger · Lindlar, DE

Key dates

• Filing date: Apr 21, 1995
• Grant date: May 6, 1997
• Expiry date: Apr 21, 2015

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G2215/00666
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

An electrographic printing or copying machine contains, by way of example, a preheating saddle (20,21) positioned upstream of a pair of fixing rollers in the recording substrate running direction and a braking element (10). The preheating saddle (20,21) and braking elements (10) form a gliding surface (23). Suction openings (18,19) in fluid communication with a vacuum-generating device ensure good contact between gliding surface (23) and recording substrate. With the aid of a valve (1), the vacuum can be matched to the operating parameters of the printing and copying machine, or to the parameters of the recording substrate.