PURPOSE: To make an apparatus compact and improve the reliability by suitably arranging a constitution to control a temperature of an inkjet recording head.
CONSTITUTION: On a substrate 101 constituting a recording head where a discharge heater and the like are formed, there are provided a temperature sensor 10'7 for detecting a temperature of the recording head and, a constitution for driving temperature controlling sub heaters 108-1 and 108-2 on the basis of the detection, that is, an analog voltage converter, an amplifier, a comparator and a sub heater driver. Accordingly, a space at the side of a main body of the apparatus is saved and the number of signal wirings is reduced to prevent the deterioration of reliability resulting from the connection of wirings.
KAMIYAMA YUJI
ISHINAGA HIROYUKI
IMANAKA YOSHIYUKI
