Title:
画像形成装置及びプロセスカートリッジ
Document Type and Number:
Japanese Patent JP7347049
Kind Code:
B2
Abstract:
An image forming apparatus includes an image holding member including a conductive substrate, a photosensitive layer, and a protection layer; a charging unit; an electrostatic image forming unit; a developing unit that includes an electrostatic image developer having a toner and develops the electrostatic image to form a toner image; a transfer unit that transfers the toner image onto a surface of a recording medium; a fixing unit that fixes the toner image; and a cleaning unit that includes a cleaning blade. The toner includes toner particles and silica particles having a number average particle size of 110 nm to 130 nm, a large-diameter-side number particle size distribution index (upper GSDp) of less than 1.080, and an average circularity of 0.94 to 0.98, wherein 80 number % or more of the silica particles have a circularity of 0.92 or more.
More Like This:
Inventors:
Tatsuhiro Igarashi
Yasuhisa Shikaoka
Jun Sekiya
Yuma Kubo
Yasuhisa Shikaoka
Jun Sekiya
Yuma Kubo
Application Number:
JP2019166985A
Publication Date:
September 20, 2023
Filing Date:
September 13, 2019
Export Citation:
Assignee:
FUJIFILM Business Innovation Co., Ltd.
International Classes:
G03G9/097; G03G5/147; G03G9/087
Domestic Patent References:
| JP2017198917A | ||||
| JP2018049239A | ||||
| JP2014044287A | ||||
| JP2004177799A | ||||
| JP2018043908A | ||||
| JP2017142397A | ||||
| JP2012063400A |
Attorney, Agent or Firm:
Patent Attorney Corporation Taiyo International Patent Office