JP2010054884A5 - - Google Patents

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JP2010054884A5
JP2010054884A5 JP2008220822A JP2008220822A JP2010054884A5 JP 2010054884 A5 JP2010054884 A5 JP 2010054884A5 JP 2008220822 A JP2008220822 A JP 2008220822A JP 2008220822 A JP2008220822 A JP 2008220822A JP 2010054884 A5 JP2010054884 A5 JP 2010054884A5
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Prior art keywords
fatty acid
metal salt
forming method
acid metal
image forming
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JP2008220822A
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JP2010054884A (en
JP5335323B2 (en
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Claims (11)

像担持体の静電潜像をトナーを用いて現像してトナー像を形成する現像工程と、該像担持体上のトナー像を転写材に転写する転写工程と、転写工程後に該像担持体上に残存する転写残トナーをブレードによりクリーニングするクリーニング工程とを有する画像形成方法において、
前記像担持体表面の十点平均粗さ(Rzjis)が0.3μm以上2.5μm以下であり、
前記トナーは、結着樹脂、着色剤、離型剤を含有するトナー粒子に、体積基準におけるメジアン径(D50)が0.10μm以上1.00μm以下である脂肪酸金属塩を外添したトナーであり、
前記トナーにおける前記脂肪酸金属塩の遊離率が1.0%以上30.0%以下であることを特徴とする画像形成方法。
A development process for developing the electrostatic latent image on the image carrier with toner to form a toner image, a transfer process for transferring the toner image on the image carrier to a transfer material, and the image support after the transfer process In an image forming method comprising a cleaning step of cleaning a transfer residual toner remaining on a body with a blade,
The ten-point average roughness (Rzjis) of the image carrier surface is 0.3 μm or more and 2.5 μm or less,
The toner binder resin, a colorant, a release agent in the toner particles having free, be a toner median size (D50) of was externally added fatty acid metal salt is 0.10μm or more 1.00μm or less in volume based ,
Image forming method, wherein a liberation rate of the fatty acid metal salt in the toner is less than 30.0% and 1.0% or more.
前記脂肪酸金属塩は、下記(1)式で定義されるスパン値Bが1.75以下であることを特徴とする請求項1に記載の画像形成方法。
スパン値B=(D95s−D5s)/D50s (1)式
D5s:体積基準における脂肪酸金属塩の5%積算径
D50s:体積基準における脂肪酸金属塩のメジアン径(D50)
D95s:体積基準における脂肪酸金属塩の95%積算径
2. The image forming method according to claim 1, wherein the fatty acid metal salt has a span value B defined by the following formula (1) of 1.75 or less.
Span value B = (D95s−D5s) / D50s (1) Formula D5s: 5% cumulative diameter of fatty acid metal salt on volume basis D50s: Median diameter of fatty acid metal salt on volume basis (D50)
D95s: 95% cumulative diameter of fatty acid metal salt on a volume basis
前記トナー粒子の下記(2)式で定義されるスパン値Aと前記脂肪酸金属塩のスパン値Bが下記(3)式を満たすことを特徴とする請求項1または2に記載の画像形成方法。
スパン値A=(D90t−D10t)/D50t (2)式
D10t:個数基準におけるトナー粒子の10%積算径
D50t:個数基準におけるトナー粒子のメジアン径(D50)
D90t:個数基準におけるトナー粒子の90%積算径
0.25≦(A/B)≦0.75 (3)式
3. The image forming method according to claim 1, wherein a span value A defined by the following formula (2) of the toner particles and a span value B of the fatty acid metal salt satisfy the following formula (3).
Span value A = (D90t-D10t) / D50t (2) formula D10t: 10% of the toner particles accumulated in the number-based size D50T: median diameter of toner particles in the number basis (D50)
D90t: 90% cumulative diameter of toner particles on the number basis 0.25 ≦ (A / B) ≦ 0.75 Formula (3)
前記脂肪酸金属塩はステアリン酸亜鉛あるいはステアリン酸カルシウムであることを特徴とする請求項1乃至3のいずれかに記載の画像形成方法。   The image forming method according to claim 1, wherein the fatty acid metal salt is zinc stearate or calcium stearate. 記脂肪酸金属塩の含有量が前記トナー粒子100質量部に対し0.02質量部以上0.50質量部以下であることを特徴とする請求項1乃至4のいずれかに記載の画像形成方法。 The image forming method according to any one of claims 1 to 4 the content of the previous SL fatty acid metal salt, wherein the the toner particles 100 parts by mass or less 0.50 parts by mass or more 0.02 part by weight . 前記脂肪酸金属塩の体積基準におけるメジアン径(D50)が0.15μm以上0.75μm以下であることを特徴とする請求項1乃至5のいずれかに記載の画像形成方法。 6. The image forming method according to claim 1, wherein a median diameter (D50) of the fatty acid metal salt on a volume basis is 0.15 μm or more and 0.75 μm or less. 前記トナーにおける前記脂肪酸金属塩の遊離率が2.0%以上25.0%以下であることを特徴とする請求項1乃至6のいずれかに記載の画像形成方法。 The image forming method according to any one of claims 1 to 6, characterized in that the liberation rate of the fatty acid metal salt in the toner is 25.0% or more and 2.0% or less. 前記脂肪酸金属塩は非イオン性界面活性剤を10ppm以上500ppm以下で含有することを特徴とする請求項1乃至7のいずれかに記載の画像形成方法。 The image forming method according to claim 1, wherein the fatty acid metal salt contains a nonionic surfactant in an amount of 10 ppm to 500 ppm. 前記像担持体表面の十点平均粗さ(Rzjis)が0.4μm以上1.5μm以下であることを特徴とする請求項1乃至8のいずれかに記載の画像形成方法。   9. The image forming method according to claim 1, wherein a ten-point average roughness (Rzjis) of the surface of the image bearing member is 0.4 μm or more and 1.5 μm or less. 前記像担持体表面に球状痕跡窪みを有することを特徴とする請求項1乃至9のいずれかに記載の画像形成方法。   The image forming method according to claim 1, wherein a spherical trace depression is formed on the surface of the image carrier. 前記像担持体表面の凹凸平均間隔Smは10μm以上100μm以下であることを特徴とする請求項1乃至10のいずれかに記載の画像形成方法。 11. The image forming method according to claim 1, wherein the uneven average interval Sm on the surface of the image carrier is 10 μm or more and 100 μm or less.
JP2008220822A 2008-08-29 2008-08-29 Image forming method Active JP5335323B2 (en)

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JP2010054884A JP2010054884A (en) 2010-03-11
JP2010054884A5 true JP2010054884A5 (en) 2011-10-13
JP5335323B2 JP5335323B2 (en) 2013-11-06

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6455047B2 (en) 2014-09-26 2019-01-23 富士ゼロックス株式会社 Image forming method, image forming apparatus, and process cartridge
EP3654105A1 (en) 2018-11-14 2020-05-20 Canon Kabushiki Kaisha Process cartridge and image forming apparatus
JP7224910B2 (en) * 2018-11-14 2023-02-20 キヤノン株式会社 Process cartridge and image forming apparatus
JP7374626B2 (en) * 2019-06-27 2023-11-07 キヤノン株式会社 Image forming device
JP7328027B2 (en) * 2019-06-27 2023-08-16 キヤノン株式会社 image forming device
JP7328026B2 (en) * 2019-06-27 2023-08-16 キヤノン株式会社 image forming device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06175393A (en) * 1992-12-04 1994-06-24 Fuji Xerox Co Ltd Conductive toner, its production and image forming method
JP3605983B2 (en) * 1997-02-06 2004-12-22 三菱化学株式会社 Negatively chargeable one-component developer and image forming method using the same
JP3475168B2 (en) * 2000-09-22 2003-12-08 東芝テック株式会社 Developer and image forming apparatus using the same
JP2002236389A (en) * 2001-02-09 2002-08-23 Seiko Epson Corp Toner and image forming device using the same
JP2004326049A (en) * 2003-04-30 2004-11-18 Kyocera Chemical Corp Nonmagnetic toner for development
JP4273035B2 (en) * 2004-04-30 2009-06-03 キヤノン株式会社 Image forming apparatus
JP4590308B2 (en) * 2005-05-27 2010-12-01 キヤノン株式会社 Image forming method

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