JP2003316175A5 - - Google Patents

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JP2003316175A5
JP2003316175A5 JP2002125991A JP2002125991A JP2003316175A5 JP 2003316175 A5 JP2003316175 A5 JP 2003316175A5 JP 2002125991 A JP2002125991 A JP 2002125991A JP 2002125991 A JP2002125991 A JP 2002125991A JP 2003316175 A5 JP2003316175 A5 JP 2003316175A5
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intermediate transfer
photosensitive member
electrophotographic photosensitive
transfer belt
universal hardness
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【0012】
【課題を解決するための手段】
すなわち、本発明は、電子写真感光体上に形成された静電潜像を現像剤で顕像化した画像を中間転写ベルトに転写する一次転写手段と、前記中間転写ベルトに転写された前記画像をさらに転写材に転写する二次転写手段とを有する画像形成装置本体に着脱自在に構成された中間転写ベルト−電子写真感光体一体型カートリッジにおいて、
前記電子写真感光体のユニバーサル硬度が150〜350N/mm2の範囲内であり、かつ前記中間転写ベルトのユニバーサル硬度が10〜200N/mm2の範囲内であり、かつ前記電子写真感光体のユニバーサル硬度及び前記中間転写ベルトのユニバーサル硬度が式(1)
電子写真感光体 > 中間転写ベルト (1)
の関係にあり、かつ、前記一次転写手段は弾性ローラであり、前記弾性ローラの前記電子写真感光体側に対する当接圧力は画像転写時に1〜50Nであることを特徴とする中間転写ベルト−電子写真感光体一体型カートリッジである。また、本発明は前記カートリッジを用いる画像形成装置及び画像形成方法である。
さらにまた、本発明は、画像形成装置に着脱自在に構成されている、中間転写ベルト−電子写真感光体一体型カートリッジであって、該画像形成装置は、該中間転写ベルト−電子写真感光体一体型カートリッジが装着された状態において、
電子写真感光体上に形成された静電潜像を現像剤で顕像化した画像を一次転写手段である弾性ロールが配設されている、該電子写真感光体と中間転写ベルトとの第1のニップにおいて該中間転写ベルトに転写すると共に、該中間転写ベルトに転写された画像を、該中間転写ベルトと二次転写手段との第2のニップにおいて転写材に転写するものであり、
該中間転写ベルト−電子写真感光体一体型カートリッジは、該電子写真感光体と、該中間転写ベルトと、該弾性ロールと、を具備し、
該中間転写ベルトは、該弾性ローラの該電子写真感光体側に対する1〜50Nの当接圧力によって該電子写真感光体に押し当てられており、
該電子写真感光体のユニバーサル硬度が150〜350N/mm 2 の範囲内であり、該中間転写ベルトのユニバーサル硬度が10〜200N/mm 2 の範囲内であり、かつ前記電子写真感光体のユニバーサル硬度は、前記中間転写ベルトのユニバーサル硬度よりも大きい、
ことを特徴とする中間転写ベルト−電子写真感光体一体型カートリッジである。
[0012]
[Means for Solving the Problems]
That is, according to the present invention, there is provided a primary transfer unit for transferring an image obtained by developing an electrostatic latent image formed on an electrophotographic photosensitive member with a developer onto an intermediate transfer belt, and the image transferred onto the intermediate transfer belt. An intermediate transfer belt-electrophotographic photosensitive member integrated cartridge detachably configured to an image forming apparatus main body having a secondary transfer unit for further transferring the image onto a transfer material;
The universal hardness of the electrophotographic photosensitive member is in the range of 150 to 350 N / mm 2 , and the universal hardness of the intermediate transfer belt is in the range of 10 to 200 N / mm 2 , and the universal of the electrophotographic photosensitive member Hardness and universal hardness of the intermediate transfer belt are represented by the formula (1)
Electrophotographic photosensitive member> Intermediate transfer belt (1)
And the contact pressure of the elastic roller against the electrophotographic photosensitive member is 1 to 50 N at the time of image transfer. It is a photosensitive member integrated type cartridge. Further, the present invention is an image forming apparatus and an image forming method using the cartridge.
Furthermore, the present invention is an intermediate transfer belt-electrophotographic photosensitive member integrated type cartridge configured to be attachable to and detachable from an image forming apparatus, wherein the image forming apparatus comprises the intermediate transfer belt-electrophotographic photosensitive member With the body type cartridge installed,
An elastic roll, which is a primary transfer unit, is provided with an image obtained by developing an electrostatic latent image formed on an electrophotographic photosensitive member with a developer, the first of the electrophotographic photosensitive member and the intermediate transfer belt And transfer the image transferred to the intermediate transfer belt to a transfer material at a second nip between the intermediate transfer belt and the secondary transfer means.
The intermediate transfer belt-electrophotographic photosensitive member integrated type cartridge comprises the electrophotographic photosensitive member, the intermediate transfer belt, and the elastic roll.
The intermediate transfer belt is pressed against the electrophotographic photosensitive member by a contact pressure of 1 to 50 N with respect to the electrophotographic photosensitive member side of the elastic roller.
The universal hardness of the electrophotographic photosensitive member is in the range of 150 to 350 N / mm 2 , the universal hardness of the intermediate transfer belt is in the range of 10 to 200 N / mm 2 , and the universal hardness of the electrophotographic photosensitive member Is greater than the universal hardness of the intermediate transfer belt,
It is an intermediate transfer belt-electrophotographic photosensitive member integrated type cartridge characterized by the above.

Claims (11)

電子写真感光体上に形成された静電潜像を現像剤で顕像化した画像を中間転写ベルトに転写する一次転写手段と、前記中間転写ベルトに転写された前記画像をさらに転写材に転写する二次転写手段とを有する画像形成装置本体に着脱自在に構成された中間転写ベルト−電子写真感光体一体型カートリッジにおいて、
前記電子写真感光体のユニバーサル硬度が150〜350N/mm2の範囲内であり、かつ前記中間転写ベルトのユニバーサル硬度が10〜200N/mm2の範囲内であり、かつ前記電子写真感光体のユニバーサル硬度及び前記中間転写ベルトのユニバーサル硬度が式(1)
電子写真感光体 > 中間転写ベルト (1)
の関係にあり、かつ、前記一次転写手段は弾性ローラであり、前記弾性ローラの前記電子写真感光体側に対する当接圧力は画像転写時に1〜50Nであることを特徴とする中間転写ベルト−電子写真感光体一体型カートリッジ。
Primary transfer means for transferring an image obtained by developing an electrostatic latent image formed on an electrophotographic photosensitive member with a developer onto an intermediate transfer belt, and further transferring the image transferred onto the intermediate transfer belt to a transfer material An intermediate transfer belt-electrophotographic photosensitive member integrated type cartridge detachably configured to an image forming apparatus main body having a secondary transfer unit;
The universal hardness of the electrophotographic photosensitive member is in the range of 150 to 350 N / mm 2 , and the universal hardness of the intermediate transfer belt is in the range of 10 to 200 N / mm 2 , and the universal of the electrophotographic photosensitive member Hardness and universal hardness of the intermediate transfer belt are represented by the formula (1)
Electrophotographic photosensitive member> Intermediate transfer belt (1)
And the contact pressure of the elastic roller against the electrophotographic photosensitive member is 1 to 50 N at the time of image transfer. Photoconductor integrated cartridge.
前記中間転写ベルトが熱可塑性樹脂を含有することを特徴とする請求項1に記載の中間転写ベルト−電子写真感光体一体型カートリッジ。The intermediate transfer belt-electrophotographic photosensitive member integrated cartridge according to claim 1, wherein the intermediate transfer belt contains a thermoplastic resin. 前記中間転写ベルトのユニバーサル硬度が無機フィラーによって調整されたことを特徴とする請求項1または2に記載の中間転写ベルト−電子写真感光体一体型カートリッジ。The cartridge according to claim 1 or 2, wherein the universal hardness of the intermediate transfer belt is adjusted by the inorganic filler. 前記電子写真感光体が外径60mm以下の感光体ドラムであることを特徴とする請求項1〜3のいずれかに記載の中間転写ベルト−電子写真感光体一体型カートリッジ。  The intermediate transfer belt-electrophotographic photosensitive member integrated cartridge according to any one of claims 1 to 3, wherein the electrophotographic photosensitive member is a photosensitive drum having an outer diameter of 60 mm or less. 前記中間転写ベルトが2本のローラにより張架されていることを特徴とする請求項1〜4のいずれかに記載の中間転写ベルト−電子写真感光体一体型カートリッジ。  The intermediate transfer belt-electrophotographic photosensitive member integrated cartridge according to any one of claims 1 to 4, wherein the intermediate transfer belt is stretched by two rollers. 前記中間転写ベルトを張架するローラの少なくとも1つが1mm以上スライドし、かつ該中間転写ベルトに対して5N以上の力をかける加圧手段を有していることを特徴とする請求項5に記載の中間転写ベルト−電子写真感光体一体型カートリッジ。  6. The apparatus according to claim 5, wherein at least one of the rollers for stretching the intermediate transfer belt slides by 1 mm or more and has a pressing unit that applies a force of 5 N or more to the intermediate transfer belt. Intermediate transfer belt-electrophotographic photosensitive member integrated cartridge. 前記中間転写ベルト上のトナーを一次転写時のトナーの極性と逆の極性の電荷を付与することによって該電子写真感光体に戻して該中間転写ベルトをクリーニングするクリーニング手段も一体に有することを特徴とする請求項1〜6のいずれかに記載の中間転写ベルト−電子写真感光体一体型カートリッジ。  It is characterized by integrally including a cleaning means for cleaning the intermediate transfer belt by returning the toner on the intermediate transfer belt to the electrophotographic photosensitive member by applying a charge of the opposite polarity to the polarity of the toner at the time of primary transfer. The intermediate transfer belt-electrophotographic photosensitive member integrated type cartridge according to any one of claims 1 to 6. 前記カートリッジが、電子写真感光体を有する電子写真感光体ユニットと中間転写ベルトを有する中間転写ベルトユニットとに分離可能であり、該電子写真感光体ユニットと該中間転写ベルトユニットとを連結する連結手段を有することを特徴とする請求項1〜7のいずれかに記載の中間転写ベルト−電子写真感光体一体型カートリッジ。  The cartridge is separable into an electrophotographic photosensitive member unit having an electrophotographic photosensitive member and an intermediate transfer belt unit having an intermediate transfer belt, and connecting means for connecting the electrophotographic photosensitive member unit and the intermediate transfer belt unit The intermediate transfer belt-electrophotographic photosensitive member integrated cartridge according to any one of claims 1 to 7, characterized in that 電子写真感光体上に形成された静電潜像を現像剤で顕像化した画像を中間転写ベルトに転写する一次転写手段と、前記中間転写ベルトに転写された前記画像をさらに転写材に転写する二次転写手段とを有する画像形成装置本体に着脱自在に構成された中間転写ベルト−電子写真感光体一体型カートリッジを具備する画像形成装置において、
前記電子写真感光体のユニバーサル硬度が150〜350N/mm2の範囲内であり、かつ中間転写体のユニバーサル硬度が10〜200N/mm2の範囲内であり、かつ前記電子写真感光体のユニバーサル硬度及び前記中間転写ベルトのユニバーサル硬度が式(1)
電子写真感光体 > 中間転写ベルト (1)
の関係にあり、かつ、前記一次転写手段は弾性ローラであり、前記弾性ローラの前記電子写真感光体側に対する当接圧力は画像転写時に1〜50Nであることを特徴とする画像形成装置。
Primary transfer means for transferring an image obtained by developing an electrostatic latent image formed on an electrophotographic photosensitive member with a developer onto an intermediate transfer belt, and further transferring the image transferred onto the intermediate transfer belt to a transfer material An image forming apparatus including an intermediate transfer belt-electrophotographic photosensitive member integrated cartridge detachably configured to an image forming apparatus main body having a secondary transfer unit;
The universal hardness of the electrophotographic photosensitive member is in the range of 150 to 350 N / mm 2 , and the universal hardness of the intermediate transfer member is in the range of 10 to 200 N / mm 2 , and the universal hardness of the electrophotographic photosensitive member And the universal hardness of the intermediate transfer belt is expressed by the equation (1)
Electrophotographic photosensitive member> Intermediate transfer belt (1)
And the contact pressure of the elastic roller against the electrophotographic photosensitive member is 1 to 50 N at the time of image transfer.
電子写真感光体上に形成された静電潜像を現像剤で顕像化し、得られた画像を中間転写ベルトに転写する一次転写工程と、前記中間転写ベルトに転写された前記画像をさらに転写材に転写する二次転写工程とを有する画像形成装置本体に着脱自在に構成された中間転写ベルト−電子写真感光体一体型カートリッジを用いる画像形成方法において、
前記電子写真感光体のユニバーサル硬度が150〜350N/mm2の範囲内であり、かつ中間転写体のユニバーサル硬度が10〜200N/mm2の範囲内であり、かつ前記電子写真感光体のユニバーサル硬度及び中間転写体のユニバーサル硬度が式(1)
電子写真感光体 > 中間転写ベルト (1)
の関係にあり、かつ、前記一次転写手段は弾性ローラであり、前記弾性ローラの前記電子写真感光体側に対する当接圧力は画像転写時に1〜50Nであることを特徴とする画像形成方法。
A primary transfer step of visualizing the electrostatic latent image formed on the electrophotographic photosensitive member with a developer and transferring the obtained image to an intermediate transfer belt, and further transferring the image transferred to the intermediate transfer belt In an image forming method using an intermediate transfer belt-electrophotographic photosensitive member integrated cartridge detachably configured to an image forming apparatus main body having a secondary transfer process of transferring to a material,
The universal hardness of the electrophotographic photosensitive member is in the range of 150 to 350 N / mm 2 , and the universal hardness of the intermediate transfer member is in the range of 10 to 200 N / mm 2 , and the universal hardness of the electrophotographic photosensitive member And the universal hardness of the intermediate transfer member is the formula (1)
Electrophotographic photosensitive member> Intermediate transfer belt (1)
And the contact pressure of the elastic roller with the electrophotographic photosensitive member is 1 to 50 N at the time of image transfer.
画像形成装置に着脱自在に構成されている、中間転写ベルト−電子写真感光体一体型カートリッジであって、該画像形成装置は、該中間転写ベルト−電子写真感光体一体型カートリッジが装着された状態において、An intermediate transfer belt-electrophotographic photosensitive member integrated type cartridge detachably configured to an image forming apparatus, wherein the intermediate transfer belt-electrophotographic photosensitive member integrated type cartridge is mounted In
電子写真感光体上に形成された静電潜像を現像剤で顕像化した画像を一次転写手段である弾性ロールが配設されている、該電子写真感光体と中間転写ベルトとの第1のニップにおいて該中間転写ベルトに転写すると共に、該中間転写ベルトに転写された画像を、該中間転写ベルトと二次転写手段との第2のニップにおいて転写材に転写するものであり、An elastic roll, which is a primary transfer unit, is provided with an image obtained by developing an electrostatic latent image formed on an electrophotographic photosensitive member with a developer, the first of the electrophotographic photosensitive member and the intermediate transfer belt And transfer the image transferred to the intermediate transfer belt to a transfer material at a second nip between the intermediate transfer belt and the secondary transfer means.
該中間転写ベルト−電子写真感光体一体型カートリッジは、該電子写真感光体と、該中間転写ベルトと、該弾性ロールと、を具備し、The intermediate transfer belt-electrophotographic photosensitive member integrated type cartridge comprises the electrophotographic photosensitive member, the intermediate transfer belt, and the elastic roll.
該中間転写ベルトは、該弾性ローラの該電子写真感光体側に対する1〜50The intermediate transfer belt is 1 to 50 to the electrophotographic photosensitive member side of the elastic roller. NN の当接圧力によって該電子写真感光体に押し当てられており、Is pressed against the electrophotographic photosensitive member by the contact pressure of the
該電子写真感光体のユニバーサル硬度が150〜350N/mmThe universal hardness of the electrophotographic photosensitive member is 150 to 350 N / mm 22 の範囲内であり、該中間転写ベルトのユニバーサル硬度が10〜200N/mmAnd the universal hardness of the intermediate transfer belt is 10 to 200 N / mm. 22 の範囲内であり、かつ前記電子写真感光体のユニバーサル硬度は、前記中間転写ベルトのユニバーサル硬度よりも大きい、And the universal hardness of the electrophotographic photosensitive member is greater than the universal hardness of the intermediate transfer belt,
ことを特徴とする中間転写ベルト−電子写真感光体一体型カートリッジ。An intermediate transfer belt-electrophotographic photosensitive member integrated type cartridge characterized in that
JP2002125991A 2002-04-26 2002-04-26 Cartridge with intermediate transfer belt and electrophotographic photoreceptor integrated into one body, image forming apparatus, and image forming method Pending JP2003316175A (en)

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JP2002125991A JP2003316175A (en) 2002-04-26 2002-04-26 Cartridge with intermediate transfer belt and electrophotographic photoreceptor integrated into one body, image forming apparatus, and image forming method

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JP4027407B2 (en) 2004-03-26 2007-12-26 キヤノン株式会社 Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
JP2009122576A (en) * 2007-11-19 2009-06-04 Konica Minolta Business Technologies Inc Image forming method and electrophotographic photoreceptor for use in same

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