| 摘要 |
PROBLEM TO BE SOLVED: To accurately manage the service term of usage in an ink cartridge. SOLUTION: An EEPROM is loaded in an ink cartridge. In the EEPROM, the date of manufacturing the ink cartridge in year, month and day, a term of validity from the date of its manufacture and information to determine the term of validity from the usage-starting date in year, month and day, regarding an ink cartridge 11, are registered. COPYRIGHT: (C)2006,JPO&NCIPI |
