Reading apparatus with colorimetry unit and reference surface that cools sheet

An image forming system, comprising:

• an image forming apparatus that prints an image on a print surface of a sheet, the print surface being a front surface of the sheet and the sheet comprising a back surface opposite the front surface;
• and
• a reading apparatus that performs colorimetry for the sheet output from the image forming apparatus with the print surface on which the image is printed by the image forming apparatus, the reading apparatus including:
• a conveyor that conveys the sheet output from the image forming apparatus along a conveyance path;
• a first guide member that includes a reference surface arranged to face the conveyance path and to oppose the print surface of the sheet and provided with an opening, and, guides the sheet conveyed on the conveyance path;
• a first opposite member that urges the sheet being conveyed on the conveyance path toward the reference surface, and, brings the front surface of the sheet in contact with the reference surface by the first opposite member pressing the back surface of the sheet;
• and
• a colorimetry unit that is disposed to face the first guide member at a side opposite to the conveyance path via the first guide member, and, performs colorimetry at a colorimetry region within the opening for the image on the front surface of the sheet brought in contact with the reference surface, wherein
• the first opposite member is urged and brought in contact with the first guide member before the conveyed sheet enters between the first opposite member and the first guide member, and
• the reference surface of the first guide member comes in contact with the sheet urged by the first opposite member and cools the sheet when the sheet is conveyed to the colorimetry region.

A non-transitory computer-readable storage medium storing a control program for a reading apparatus that includes a conveyor that conveys a sheet along a conveyance path;

• a first guide member that includes a reference surface and provided with an opening, and, guides the sheet conveyed on the conveyance path, the sheet possessing a front surface and a back surface opposite the front surface;
• a first opposite member that urges the sheet being conveyed on the conveyance path toward the reference surface, and, brings the front surface of the sheet in contact with the reference surface by the first opposite member pressing the back surface of the sheet;
• and a colorimetry unit that is disposed to face the first guide member at a side opposite to the conveyance path via the first guide member, and, performs colorimetry at a colorimetry region within the opening for the image through the opening, the control program making a computer execute processing comprising:
• (a) conveying the sheet on which an image is printed on the front surface of the sheet;
• (b) bringing the first guide member in contact with the first opposite member;
• and
• (c) performing colorimetry at the colorimetry region within the opening for the image on the front surface of the sheet brought in contact with the reference surface, wherein
• the reference surface of the first guide member comes in contact with the sheet urged by the first opposite member and cools the sheet when the sheet is conveyed to the colorimetry region.