Image formation apparatus and control method therefor

An image formation apparatus comprising:

• an image former that forms an image on a recording medium;
• a first hardware processor that judges whether or not the recording medium has a hollow;
• a second hardware processor that acquires a basis weight of the recording medium;
• and
• a third hardware processor that:
• in case the first hardware processor judges that the recording medium has the hollow, refers to a first control table in which a relationship between a basis weight and a control value used in image forming is defined, and causes the image former to operate on the basis of the control value corresponding to the basis weight acquired by the second hardware processor;
• and
• in case the first hardware processor judges that the recording medium does not have the hollow, refers to a second control table in which a relationship between a basis weight and a control value used in image forming is defined, and causes the image former to operate on the basis of the control value corresponding to the basis weight acquired by the second hardware processor.

An image formation apparatus comprising:

• an image former that forms an image on a recording medium;
• a first hardware processor that judges information about the recording medium with an ultrasonic wave;
• a second hardware processor that acquires a basis weight of the recording medium;
• and
• a third hardware processor that:
• in case the first hardware processor judges that an amount of attenuation of the ultrasonic wave is equal to or greater than a predetermined value, refers to a first control table in which a relationship between a basis weight and a control value used in image forming is defined, and causes the image former to operate on the basis of the control value corresponding to the basis weight acquired by the second hardware processor;
• and
• in case the first hardware processor judges that the amount of attenuation of the ultrasonic wave is smaller than the predetermined value, refers to a second control table in which a relationship between a basis weight and a control value used in image forming is defined, and causes the image former to operate on the basis of the control value corresponding to the basis weight acquired by the second hardware processor.

A method for controlling an image formation apparatus that forms an image on a recording medium, the method comprising:

• judging whether or not the recording medium has a hollow;
• acquiring a basis weight of the recording medium;
• in case the recording medium has been judged to have the hollow, referring to a first control table in which a relationship between a basis weight and a control value used in image forming is defined, and causing the image formation apparatus to operate on the basis of the control value corresponding to the acquired basis weight;
• and
• in case the recording medium has been judged not to have the hollow, referring to a second control table in which a relationship between a basis weight and a control value used in image forming is defined, and causing the image formation apparatus to operate on the basis of the control value corresponding to the acquired basis weight.

A method for controlling an image formation apparatus that forms an image on a recording medium, the method comprising:

• judging whether or not the recording medium is an envelope;
• acquiring a basis weight of the recording medium;
• in case the recording medium has been judged to be the envelop, referring to a first control table in which a relationship between a basis weight and a control value used in image forming is defined, and causing the image formation apparatus to operate on the basis of the control value corresponding to the acquired basis weight;
• and
• in case the recording medium has been judged not to be the envelop, referring to a second control table in which a relationship between a basis weight and a control value used in image forming is defined, and causing the image formation apparatus to operate on the basis of the control value corresponding to the acquired basis weight.

A method for controlling an image formation apparatus that forms an image on a recording medium, the method comprising:

• judging information about the recording medium with an ultrasonic wave;
• acquiring a basis weight of the recording medium;
• in case an amount of attenuation of the ultrasonic wave is judged to be equal to or greater than a predetermined value, referring to a first control table in which a relationship between a basis weight and a control value used in image forming is defined, and causing the image formation apparatus to operate on the basis of the control value corresponding to the acquired basis weight;
• and
• in case the amount of attenuation of the ultrasonic wave is judged to be smaller than the predetermined value, referring to a second control table in which a relationship between a basis weight and a control value used in image forming is defined, and causing the image formation apparatus to operate on the basis of the control value corresponding to the acquired basis weight.