| 摘要 |
An object of this invention is to provide ink viscosity information of an inkjet printing apparatus at low cost in small space. To achieve this object, the inkjet printing apparatus of this invention serves as an inkjet printing apparatus which performs image printing by using a printhead with a plurality of nozzles from which ink is discharged. This inkjet printing apparatus includes a switching unit which switches to a test print mode for providing the ink viscosity information. The inkjet printing apparatus also includes an image printing unit which prints a predetermined image in response to a plurality of driving pulses with different frequencies to obtain a test print pattern ( 600 ), when the switching unit switches to the test print pattern.
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