Kabushiki Kaisha Sato

Sakae Takeuchi

Hiroshi Kajiya

Kazuya Suzuki

Masahiro Kojima

Tsutomu Tabata

Akihiro Koeda

Tadanobu Uchidate

A printing paper winding device for enabling winding of printing paper even paper with a base material having a low resistance to bending stresses or printing paper having RFID labels carrying IC chips. Bending stresses are reduced by dividing the movement region of the tension roller into four regions in order to enable the successive detection of the position or posture of the tension roller and by making the bending angle of the printing paper in the winding path close to a more obtuse angle. A winding control unit of the present invention determines whether the tension region where the tension roller is positioned is a first tension region, second tension region, third tension region, or fourth tension region, controls the drive unit to limit the tension roller to a tension region in which winding is possible in the direction such that the bending angle of the printing paper in the winding path, which follows the winding of the printing paper, is close to a more obtuse angle.

Printing paper winding device

In a thermal printer having a printer frame to which the thermal print head is swingable attached and supported on a print head holder, the orientation of the print head with reference to a platen roller is set and the print head is permitted to move with reference to the platen roller without changing their orientations. An engagement pin on the printer frame receives a fourth engaging member on the end of the thermal print head holder. A positioning pin on the print head holder is received in a positioning hole in the print head holder mounting plate. Fixing pins at each side of the first positioning pin are received in fixing holes in the mounting plate and are held there by fixing elements. The engaging pin and engaging member permit the print head holder to move with reference to the platen roller to accommodate different thickness papers.

Thermal printer

A thermal printer that facilitates thermal print head replacement as well as paper setting and removal. One paper guide for the paper to be printed is fixed to the main frame. Another paper guide is attached by a spring link to the frame for the print head, so that they may rotate together. The other paper guide and the head frame together rotate open to provide access between the paper guides. The head frame is rotatable open further beyond the rotation of the other paper guide to provide access to the print head. A stop on the other paper guide engages the main frame to prevent the further opening rotation of the other paper guide.

Growing community of inventors

Saitama-ken, Japan

Sakae Takeuchi