Charging device and image forming apparatus using the same
AssigneeSamsung Electronics Co., Ltd.
InventorKoji Miyake
Life of this patent
Estimating the term…
Abstract
A roll-type charging device contacts an image receptor serving as a body to be charged and is capable of rotating due to rotation of the image receptor. The apparatus includes a hollow roll having a cylindrical shape and formed of a hollow elastic member and flanges having rotation axes and formed of elastic members, the flanges inserted into two ends of the hollow roll to increase an inner diameter of the hollow roll.
Claims12
A charging device having a roll shape and configured to contact an image receptor as a body to be charged and to be capable of rotating due to rotation of the image receptor, the charging device comprising:
- a hollow roll having a cylindrical shape and formed of a hollow elastic member;
- and
- flanges having rotation axes and formed of elastic members, the flanges inserted into two ends of the hollow roll to increase an inner diameter of the hollow roll.
An image forming apparatus comprising:
- an image receptor configured to transfer a supplied toner based on an electrostatic latent image and to form an image on a medium;
- a developing agent receptor configured to supply the toner to the image receptor;
- and
- a charging roller configured to contact the image receptor, to rotate due to rotation of the image receptor, and to electrify the image receptor,
- wherein the charging roller comprises
- a hollow roll having a cylindrical shape and formed of a hollow elastic member;
- and
- flanges having rotation axes and formed of elastic members, the flanges inserted into two ends of the hollow roll to increase an inner diameter of the hollow roll.
Dependencies are inferred from the claim text.