Charging device, cartridge, and image forming apparatus
AssigneeFUJIFILM Business Innovation Corp.
InventorsYuki Tagawa, Fuyuki Kano, Takuya Yamamoto
Life of this patent
Estimating the term…
Abstract
A charging device includes: a charging member that rotates in contact with a charged body and charges the charged body; and a cleaning member that comes into contact with the charging member and rotates in conjunction with the charging member, in which the cleaning member includes a foam elastic layer in which a band-shaped foam elastic member is spirally disposed with a pitch, and a diameter of a tip end portion of a cell skeleton protruding to a surface of the foam elastic layer is 50 μm or less, and a peripheral speed ratio of the cleaning member to the charging member is 0.3 or more and 0.7 or less.
Claims16
A charging device comprising:
- a charging member configured to rotate in contact with a charged body and to charge the charged body;
- and
- a cleaning member configured to contact the charging member and to rotate in conjunction with the charging member,
- wherein the cleaning member includes a foam elastic layer in which a band-shaped foam elastic member is spirally disposed with a pitch, and a diameter of a tip end portion of a cell skeleton protruding to a surface of the foam elastic layer is 50 μm or less, and
- wherein a peripheral speed ratio of the cleaning member to the charging member is 0.3 or more and 0.7 or less.
A method for a charging device, the method comprising:
- rotating a charging member in contact with a charged body and charging the charged body;
- and
- contacting a cleaning member with the charging member and rotating the cleaning member in conjunction with the charging member,
- wherein the cleaning member includes a foam elastic layer in which a band-shaped foam elastic member is spirally disposed with a pitch, and a diameter of a tip end portion of a cell skeleton protruding to a surface of the foam elastic layer is 50 μm or less;
- and
- controlling a peripheral speed ratio of the cleaning member to the charging member to be 0.3 or more and 0.7 or less.
Dependencies are inferred from the claim text.