Patent ID: 8447196

Claim:
A recording material determination apparatus that determines an attribute of a recording material, the recording material determination apparatus comprising: a light irradiation unit that irradiates light on a recording material; a reading unit that reads the light reflected from a surface of the recording material, wherein said reading unit reads a plurality of first images during conveying of the recording material and reads a second image when conveying of the recording material has stopped, the plurality of first images includes information related to noise and the second image includes information related to a surface condition; a conveying unit that conveys the recording material; a controller that controls a conveying speed of the recording material; and a determining unit that includes a processor that determines an attribute of the recording material based on the plurality of first images and the second image, wherein a conveying speed of the recording material when said reading unit reads the plurality of first images is slower than a conveying speed of the recording material before the recording material reaches a position where said reading unit reads the light reflected from the surface of the recording material.