초록 ▼

An ink jet recording apparatus includes a recording head for ejecting ink from an ejection unit to cause a change in temperature in a recording period, a temperature keeping unit for maintaining a temperature of the recording head at a predetermined keeping temperature higher than an upper limit of

An ink jet recording apparatus includes a recording head for ejecting ink from an ejection unit to cause a change in temperature in a recording period, a temperature keeping unit for maintaining a temperature of the recording head at a predetermined keeping temperature higher than an upper limit of a surrounding temperature range in which recording is possible, a temperature prediction unit for predicting an ink temperature in the ejection unit in the recording period prior to recording, and an ejection stabilization unit for stabilizing ink ejection from the ejection unit according to the ink temperature in the ejection unit predicted by the temperature prediction unit.

대표청구항 ▼

[ What is claimed is:] [1.] A temperature calculation method for detecting a temperature of an object, which varies according to input energy, comprising the steps of:supplying energy to said object;determining elapse of unit times;obtaining, as discrete values, changes in temperature of said object

[ What is claimed is:] [1.] A temperature calculation method for detecting a temperature of an object, which varies according to input energy, comprising the steps of:supplying energy to said object;determining elapse of unit times;obtaining, as discrete values, changes in temperature of said object upon the elapse of unit time based on the energy input to said object per every unit time;storing the discrete values obtained in said obtaining step; andaccumulating discrete values stored in said storing step upon elapse of the unit times to calculate the change in temperature of said object.