| US 7,467,864 B2 | ||
| Recording head, head cartridge and recording apparatus | ||
| Takahiro Matsui, Tokyo (Japan); Yoshiyuki Imanaka, Kanagawa (Japan); Souta Takeuchi, Kanagawa (Japan); Takuya Hatsui, Tokyo (Japan); Takaaki Yamaguchi, Kanagawa (Japan); Kousuke Kubo, Kanagawa (Japan); and Souhei Tanaka, Kanagawa (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Jun. 27, 2006, as Appl. No. 11/474,986. | ||
| Claims priority of application No. 2005-193083 (JP), filed on Jun. 30, 2005. | ||
| Prior Publication US 2007/0002087 A1, Jan. 04, 2007 | ||
| Int. Cl. B41J 2/175 (2006.01) | ||
| U.S. Cl. 347—87 [347/5; 347/9; 347/10; 347/11; 347/19; 347/49; 347/50] | 9 Claims |
| 1. A recording head detachable to a recording apparatus, comprising:
connecting terminals corresponding respectively to a recording signal, a clock signal for transferring the recording signal,
and a control signal for controlling a recording operation according to the recording signal, the signals being received from
the recording apparatus; and
a connection status output circuit for performing a logical operation between the signals supplied to the connecting terminals,
and outputting a signal designating a connection status, wherein
the connection status output circuit is configured such that, when the connection status is confirmed, the signal designating
the connection status is outputted, and when a recording operation is performed, the output signal does not change.
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