Ink cartridge mechanism for color printer

Abstract

Abstract PURPOSE:To prevent erroneous insertion of an ink cartridge by inserting a positioning pin into a pin hole corresponding to a position wherein it is fitted in a groove of a cartridge setting element. CONSTITUTION:An ink tank 4 fitted to an ink jet head 3 is connected to ink supply ports 9 of an ink cartridge case 8 by pipes 7. In the bottom of each small chamber of the case 8, a groove 13 for discriminating the color of ink contained in a cartridge is formed in a different position from others. Four holes provided in the base of an ink cartridge 11 correspond to the positions of the grooves of the case 8 respectively. When a positioning pin 12 is inserted into a hole position specified for each color, only a specified ink cartridge is coupled to a needle 10 of the ink supply port 9. By this construction, erroneous insertion of the cartridge of each color is prevented, and also the mixture of colors of ink can be prevented.

Inventors

• 👤 Masatoshi Yasuhara
• 👤 安原　正俊
• 👤 Mitsuhiro Matsumura
• 👤 光宏 松村

Bibliographic Details