Image reading apparatus, image forming system, and program for image reading apparatus

An image forming system comprising:

• an image forming device that forms an image on paper;
• and
• an image reading apparatus that performs colorimetry on the image on the paper and a calibrating member in a reference color,
• wherein the image reading apparatus includes:
• a conveyor that conveys the paper on which the image is formed along a conveyance path;
• a first guide member including a first opening on a reference surface opposed to the conveyance path that guides the conveyed paper;
• a first opposing member that arranges the image on the paper in a colorimetric range set in the first opening on the reference surface by pressing the reference surface via the paper guided by the first guide member to allow the paper to abut the reference surface;
• a second opposing member that presses the reference surface by a pressing surface including the calibrating member to arrange the calibrating member in the colorimetric range;
• a colorimeter arranged on a side opposite to the conveyance path across the first guide member that performs colorimetry on the image on the paper and the calibrating member arranged in the colorimetric range;
• a scanner that obtains image data by reading the image on the paper;
• a calibrator that calibrates the colorimeter on the basis of a colorimetric value of the calibrating member subjected to the colorimetry and calibrates the scanner on the basis of a colorimetric value of the image on the paper subjected to the colorimetry by the image reading apparatus after the calibration and the image data of the image obtained by the scanner;
• and
• a member mover that moves the first opposing member and the second opposing member corresponding to a first mode in which the colorimetry is performed on the image on the paper by the colorimeter and a second mode in which the colorimetry is performed on the calibrating member by the colorimeter, wherein
• the member mover rotates the first opposing member around a rotary shaft to switch a position of the first opposing member to a position opposed to the colorimeter across the first opening, then moves the first opposing member in a direction approaching the first guide member to allow the first opposing member to press the reference surface corresponding to the first mode, and rotates the second opposing member around the rotary shaft to switch a position of the second opposing member to a position in which the pressing surface is opposed to the colorimeter across the first opening, then moves the second opposing member in a direction approaching the first guide member to allow the second opposing member to press the reference surface by the pressing surface corresponding to the second mode.

A non-transitory recording medium storing a computer readable control program of an image reading apparatus including a conveyor that conveys paper on which an image is formed along a conveyance path, a first guide member including a first opening on a reference surface opposed to the conveyance path that guides the conveyed paper, a first opposing member that arranges the image on the paper in a colorimetric range set in the first opening on the reference surface by pressing the reference surface via the paper guided by the first guide member to allow the paper to abut the reference surface, a second opposing member that presses the reference surface by a pressing surface including a calibrating member in a reference color to arrange the calibrating member in the colorimetric range, and a colorimeter arranged on a side opposite to the conveyance path across the first guide member that performs colorimetry on the image on the paper and the calibrating member arranged in the colorimetric range, the program causing a computer to execute:

• (a) arranging the calibrating member in the colorimetric range by pressing the reference surface by the pressing surface by the second opposing member corresponding to a second mode in which the colorimeter performs the colorimetry on the calibrating member;
• (b) performing the colorimetry by the colorimeter on the calibrating member arranged in the colorimetric range in (a);
• (c) arranging the image on the paper in the colorimetric range by pressing the reference surface via the paper by the first opposing member corresponding to a first mode in which the colorimeter performs the colorimetry on the image on the paper;
• and
• (d) performing the colorimetry on the image on the paper arranged in the colorimetric range in (c),
• wherein the image reading apparatus further includes a member mover that moves the first opposing member and the second opposing member;
• the member mover rotates the first opposing member around a rotary shaft to switch a position of the first opposing member to a position opposed to the colorimeter across the first opening, then moves the first opposing member in a direction approaching the first guide member to allow the first opposing member to press the reference surface corresponding to the first mode, rotates the second opposing member around the rotary shaft to switch a position of the second opposing member to a position in which the pressing surface is opposed to the colorimeter across the first opening, then moves the second opposing member in a direction approaching the first guide member to allow the second opposing member to press the reference surface by the pressing surface corresponding to the second mode, and
• the program causes the computer to execute:
• (a) and (b) corresponding to the second mode;
• and
• (c) and (d) corresponding to the first mode.