Method and system for printing gap adjustment

US5570959A · kind A · utility

Assignee

• FUJITSU LIMITED · JP

Inventors

• Hisao Moriwaki · Kasai, JP
• Kouichi Uozumi · Kasai, JP
• Hiroshi Fujimoto · Calacoa Bellavista, PE
• Daigo Uchikoshi · Kasai, JP
• Mitsunori Hiraishi · Kasai, JP
• Kazuhiro Tamada · Kawasaki, JP
• Shingo Ashida · Kasai, JP
• Tsutomu Nagatomi · Kasai, JP
• Yoshito Fukata · Otofuke, JP

Key dates

• Filing date: Sep 7, 1995
• Grant date: Nov 5, 1996
• Expiry date: Sep 7, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41J11/20
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

In a printing machine such as an impact printer, the printing gap between a print head and a platen is appropriately adjusted to cope with a variety of paper sheets. For adjusting the printing gap, the platen (or print head) is moved toward the print head (or platen) to press a paper sheet and then the platen (or print head) is moved to an origin position. Thereafter, the platen (or print head) is moved closer to the print head (or platen) by an appropriate pressing distance obtained by subtracting an appropriate value for the printing gap from the distance between the pressing position and the origin position.