| 摘要 |
<p>When a personal computer PC detects an ink exchange request, it identifies the ink cartridge CA1 whose exchange is requested. When ink cartridge CA1 is exchanged, personal computer PC transmits over data bus DB identifying data corresponding to identifying data held in the memory device 20 of the identified ink cartridge CA1. In the event that there is no response from the memory device of the exchanged ink cartridge CA, personal computer PC notifies to the effect that an incorrect ink cartridge CA is installed. In the event that there is a response from the memory device 20 of the exchanged ink cartridge CA1, personal computer PC determines that ink cartridge CA1 has been correctly installed. <IMAGE></p> |
