US 12,282,275 B2
Image forming apparatus and cooling method capable of suppressing unnecessary cooling of fixing portion
Yoshiyuki Odaka, Osaka (JP)
Assigned to KYOCERA Document Solutions Inc., Osaka (JP)
Filed by KYOCERA Document Solutions Inc., Osaka (JP)
Filed on Jan. 24, 2024, as Appl. No. 18/421,878.
Claims priority of application No. 2023-010194 (JP), filed on Jan. 26, 2023.
Prior Publication US 2024/0255873 A1, Aug. 1, 2024
Int. Cl. G03G 15/20 (2006.01)
CPC G03G 15/2017 (2013.01) [G03G 15/2042 (2013.01); G03G 15/205 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
a fixing portion provided rotatably around a predetermined rotation shaft and configured to fix a toner image to a sheet;
a first acquisition processing portion configured to acquire first temperature information regarding a temperature of the fixing portion at an end of a first image formation process of forming an image on a first sheet whose size in a width direction along the rotation shaft is smaller than a predetermined reference size;
a first determination processing portion configured to determine an execution time of a cooling process of cooling the fixing portion based on the first temperature information; and
a restriction processing portion configured to restrict execution of the cooling process exceeding a predetermined upper limit time when the execution time of the cooling process determined by the first determination processing portion exceeds the upper limit time.