US 12,085,879 B2
Control device and image forming apparatus
Yutaka Usami, Izunokuni Shizuoka (JP)
Assigned to Toshiba Tec Kabushiki Kaisha, Tokyo (JP)
Filed by Toshiba Tec Kabushiki Kaisha, Tokyo (JP)
Filed on Jul. 4, 2023, as Appl. No. 18/346,842.
Claims priority of application No. 2022-203376 (JP), filed on Dec. 20, 2022.
Prior Publication US 2024/0201622 A1, Jun. 20, 2024
Int. Cl. G03G 15/20 (2006.01); G03G 15/00 (2006.01)
CPC G03G 15/205 (2013.01) [G03G 15/2064 (2013.01); G03G 15/5004 (2013.01); G03G 15/5008 (2013.01); G03G 2215/2045 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A control device for controlling heat to be applied to a medium conveyed along a conveyance path, comprising:
a plurality of heaters arranged along a first direction crossing the conveyance path, wherein the heaters include first and second heaters, wherein when the medium is conveyed, the first heater overlaps the medium and the second heater does not overlap the medium when viewed in a second direction crossing the conveyance path and the first direction;
a temperature sensor; and
a control circuit configured to:
determine an estimated temperature of each of the first and second heaters based on an amount of power supplied to said each of the first and second heaters,
determine a corrected temperature of the first heater based on the estimated temperature of the first heater and a temperature measured by the temperature sensor,
determine a corrected temperature of the second heater based on the estimated temperature of the second heater, the corrected temperature of the first heater, and the estimated temperature of the first heater,
generate energizing pulses for energizing the first and second heaters based on the corrected temperatures of the first and second heaters, and
issue a command for controlling a conveying speed of the medium based on the corrected temperature of the second heater.