Droplet ejection device that applies treating agent to recording medium

A control device that controls a droplet ejection device including a head that ejects droplets onto a recording medium so as to form an image corresponding to image data and a treating-agent application member that applies a treating agent to the recording medium, comprising:

• a first storing unit that stores the image data;
• an extract unit that extracts a part of the image as a specific image portion based on the image data;
• a control unit that controls the treating-agent application member to apply the treating agent to a first section and a second section of the recording medium, wherein the specific image portion is formed in the first section, and at least a part of a non-specific image portion of the image other than the specific image portion is formed in the second section;
• a detection unit that detects a remaining amount of the treating agent;
• and
• a first determining unit that determines whether or not the remaining amount is less than a first amount, wherein:
• when the remaining amount is less than the first amount, the control unit controls the treating-agent application member to apply the treating agent to the second section by an amount less than an amount of the treating agent that is applied to the second section when the remaining amount is not less than the first amount.

A non-transitory computer readable storage medium storing a set of program instructions installed on an executed by a computer for controlling a droplet ejection device including a head that ejects droplets onto a recording medium so as to form an image corresponding to image data and a treating-agent application member that applies a treating agent to the recording medium, the program instructions comprising:

• an extract unit that extracts a part of the image as a specific image portion based on the image data stored in a storing unit;
• controlling the treating-agent application member to apply the treating agent to a first section and a second section of the recording medium, wherein the specific image portion is formed in the first section, and at least a part of a non-specific image portion of the image other than the specific image portion is formed in the second section;
• detecting a remaining amount of the treating agent;
• and
• determining whether or not the remaining amount is less than a first amount, wherein:
• when the remaining amount is less than the first amount, the treating-agent application member is controlled to apply the treating agent to the second section by an amount less than an amount of the treating agent that is applied to the second section when the remaining amount is not less than the first amount.