| US 7,603,057 B2 | ||
| Photosensitive unit and developer cartridge | ||
| Masatoshi Shiraki, Nisshin (Japan); and Yasushi Okabe, Chikusa-ku (Japan) | ||
| Assigned to Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken (Japan) | ||
| Filed on May 30, 2007, as Appl. No. 11/755,110. | ||
| Claims priority of application No. 2006-150669 (JP), filed on May 30, 2006. | ||
| Prior Publication US 2007/0280733 A1, Dec. 06, 2007 | ||
| Int. Cl. G03G 21/18 (2006.01); G03G 15/08 (2006.01) | ||
| U.S. Cl. 399—113 [399/111; 399/120] | 32 Claims |
| 1. A photosensitive unit comprising:
a developer cartridge comprising a developing agent carrier carrying a developing agent and a casing supporting the developing
agent carrier and accommodating the developing agent;
a photosensitive body disposed so that the developing agent carrier is brought into contact therewith by pressing and developed
with an electrostatic latent image by the developing agent fed from the developer agent carrier; and
a cartridge attaching portion to which the developer cartridge is detachably attached, wherein
the casing comprises an elastic member, a pressing member for pressing the elastic member toward the developing agent carrier
so that the developing agent carrier is pressed toward the photosensitive body, and a fitting member provided on the pressing
member, and
the cartridge attaching portion comprises a fit portion which is fitted with the fitting member so that the pressing member
presses the elastic member toward the developing agent carrier for maintaining a pressing state of the pressing member to
the elastic member.
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