Temperature detecting apparatus

摘要

A temperature detecting apparatus includes: a temperature sensor having an element whose resistance value changes depending on temperature and detecting temperature based on a voltage value obtained by supply of a supply current to the element from a power source and outputting an output voltage depending on the voltage value; a change-instructing-signal output portion connected to the temperature sensor and outputting a change instructing signal for changing the supply current based on the output voltage outputted from the temperature sensor; and a current-value change portion disposed between the power source and the element, connected to the change-instructing-signal output portion, and changing a current value of the supply current to be supplied to the element when having received the change instructing signal.

主权项

1. A temperature detecting apparatus, which is used for an inkjet recording apparatus, comprising:
a temperature sensor having an element whose resistance value changes depending on temperature and configured to detect temperature based on a voltage value obtained by supply of a supply current to the element from a power source; a print-duty-ratio detecting portion configured to detect a print duty ratio of recording executed by the inkjet recording apparatus, the print duty ratio being detected on the basis of print data; and a current-value change portion disposed between the power source and the element, the current-value change portion configured to change a current value of the supply current to be supplied to the element in accordance with the print duty ratio detected by the print-duty detecting portion.