| 摘要 |
PURPOSE:To contrive enhancement of the density of recorded images, by a construction wherein of energizing electrodes for a pair of adjacent heat generating electrodes, those on the adjacent side are composed of a single common electrode. CONSTITUTION:A thermal energy applying means 3 comprises a plurality of heat generating resistors 8 provided near an aperture edge on one side of a slit form space part 1, and pairs of energizing electrodes 9 provided one pair for each of the resistors 8 so as to selectively energize the resistors 8. Of the energizing electrodes 9 for each pair of adjacent heat generating resistors 8, those on the adjacent side are composed of a single common electrode 10. As a result, the number of the energizing electrodes is reduced, whereby the density of the electrodes can be reduced, and a switching circuit 18 can be simplified. Accordingly, it is possible to reduce the pitch of arrangement of the heat generating resistors 8 and to contrive an increase in the density of recorded images.
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