Printing apparatus and identification method

A printing apparatus comprising:

• a printing unit configured to print an image on a printing medium by applying a first liquid containing a colorant and a second liquid containing a component that causes the colorant to aggregate;
• and
• a control unit configured to control the printing unit so as to print a first pattern and a second pattern differing from the first pattern in a manner of application of the first liquid and the second liquid, wherein
• the control unit controls the printing such that at least one of an amount of the second liquid to be applied, air blow to the printing medium during the printing, or ejection of the first liquid and the second liquid from the printing unit in a scan is made different between the first pattern and the second pattern based on a difference between a first density of the first pattern and a second density of the second pattern.

A printing apparatus comprising:

• a printing unit configured to print an image on a printing medium by applying a first liquid containing a colorant and a second liquid containing a component that causes the colorant to aggregate;
• a control unit configured to control the printing unit so as to print a first pattern and a second pattern, the first pattern being a pattern in which an amount of the first liquid to be applied is more than zero and an amount of the second liquid to be applied is substantially zero, the second pattern being a pattern in which an amount of the first liquid to be applied is more than zero and an amount of the second liquid to be applied is more than zero;
• and
• an obtaining unit configured to obtain information on a density of the first pattern and a density of the second pattern from a user.