US 12,265,355 B2
Image forming apparatus having grounded fixing member
Koji An, Saitama (JP); and Shinji Katagiri, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 9, 2023, as Appl. No. 18/388,431.
Application 18/388,431 is a division of application No. 17/944,816, filed on Sep. 14, 2022, granted, now 11,841,676.
Claims priority of application No. 2021-152694 (JP), filed on Sep. 17, 2021; and application No. 2022-050957 (JP), filed on Mar. 25, 2022.
Prior Publication US 2024/0069490 A1, Feb. 29, 2024
Int. Cl. G03G 15/20 (2006.01); G03G 15/00 (2006.01); G03G 21/20 (2006.01); G06K 15/00 (2006.01); G06K 15/02 (2006.01)
CPC G03G 21/203 (2013.01) [G03G 15/80 (2013.01); G06K 15/005 (2013.01); G06K 15/021 (2013.01); G06K 15/408 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
an image bearing member configured to bear a toner image;
a transfer member forming a transfer portion in contact with the image bearing member and configured to transfer the toner image from the image bearing member onto a recording material passing through the transfer portion;
a power source configured to output a voltage to the transfer member;
a detecting portion configured to detect at least one of a value of a current flowing through the transfer member when the voltage is outputted from the power source to the transfer member and a value of the voltage applied to the transfer member;
a controller configured to control the power source;
an environment detecting portion configured to detect environmental information regarding at least one of ambient temperature and ambient humidity; and
a fixing member configured to fix the toner image on the recording material, the fixing member being contactable to the recording material simultaneously with the transfer member at a portion,
wherein the fixing member is electrically grounded through a resistance element and includes an electrically insulating surface layer contactable to the recording material, and
wherein a resistance value of the electrically insulating surface layer is 1×1012Ω or more and 1×1013Ω or less.