JP4140473B2 - 電子写真感光体、画像形成装置及びプロセスカートリッジ - Google Patents
電子写真感光体、画像形成装置及びプロセスカートリッジ Download PDFInfo
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- JP4140473B2 JP4140473B2 JP2003279346A JP2003279346A JP4140473B2 JP 4140473 B2 JP4140473 B2 JP 4140473B2 JP 2003279346 A JP2003279346 A JP 2003279346A JP 2003279346 A JP2003279346 A JP 2003279346A JP 4140473 B2 JP4140473 B2 JP 4140473B2
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- Prior art keywords
- resin
- photosensitive member
- photoreceptor
- zirconium
- light
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- 229920002554 vinyl polymer Polymers 0.000 description 5
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- IYAYDWLKTPIEDC-UHFFFAOYSA-N 2-[2-hydroxyethyl(3-triethoxysilylpropyl)amino]ethanol Chemical compound CCO[Si](OCC)(OCC)CCCN(CCO)CCO IYAYDWLKTPIEDC-UHFFFAOYSA-N 0.000 description 4
- GCGWQXSXIREHCF-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanol;zirconium Chemical compound [Zr].OCCN(CCO)CCO GCGWQXSXIREHCF-UHFFFAOYSA-N 0.000 description 4
- KTXWGMUMDPYXNN-UHFFFAOYSA-N 2-ethylhexan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCCC(CC)C[O-].CCCCC(CC)C[O-].CCCCC(CC)C[O-].CCCCC(CC)C[O-] KTXWGMUMDPYXNN-UHFFFAOYSA-N 0.000 description 4
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
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- Photoreceptors In Electrophotography (AREA)
Description
2,5−ビス(p−ジエチルアミノフェニル)−1,3,4−オキサジアゾールなどのオキサジアゾール誘導体、1,3,5−トリフェニル−ピラゾリン、1−[ピリジル−(2)]−3−(p−ジエチルアミノスチリル)−5−(p−ジエチルアミノスチリル)ピラゾリンなどのピラゾリン誘導体、トリフェニルアミン、トリ(P−メチル)フェニルアミン、N,N’−ビス(3,4−ジメチルフェニル)ビフェニル−4−アミン、ジベンジルアニリン、9,9−ジメチル−N,N’−ジ(p−トリル)フルオレノン−2−アミンなどの芳香族第3級アミノ化合物、N,N’−ジフェニル−N,N’−ビス(3−メチルフェニル)−[1,1−ビフェニル]−4,4’−ジアミンなどの芳香族第3級ジアミノ化合物、3−(4’ジメチルアミノフェニル)−5,6−ジ−(4’−メトキシフェニル)−1,2,4−トリアジンなどの1,2,4−トリアジン誘導体、4−ジエチルアミノベンズアルデヒド−1,1−ジフェニルヒドラゾン、4−ジフェニルアミノベンズアルデヒド−1,1−ジフェニルヒドラゾン、[p−(ジエチルアミノ)フェニル](1−ナフチル)フェニルヒドラゾンなどのヒドラゾン誘導体、2−フェニル−4−スチリル−キナゾリンなどのキナゾリン誘導体、6−ヒドロキシ−2,3−ジ(p−メトキシフェニル)−ベンゾフランなどのベンゾフラン誘導体、p−(2,2−ジフェニルビニル)−N,N’−ジフェニルアニリンなどのα−スチルベン誘導体、エナミン誘導体、N−エチルカルバゾールなどのカルバゾール誘導体、ポリ−N−ビニルカルバゾールおよびその誘導体などの正孔輸送物質;
クロラニル、ブロモアニル、アントラキノン等のキノン系化合物、テトラシアノキノジメタン系化合物、2,4,7−トリニトロフルオレノン、2,4,5,7−テトラニトロ−9−フルオレノン等のフルオレノン化合物、2−(4−ビフェニル)−5−(4−t−ブチルフェニル)−1,3,4−オキサジアゾールや2,5−ビス(4−ナフチル)−1,3,4−オキサジアゾール、2,5−ビス(4−ジエチルアミノフェニル)1,3,4オキサジアゾールなどのオキサジアゾール系化合物、キサントン系化合物、チオフェン化合物、3,3’,5,5’−テトラ−t−ブチルジフェノキノン等のジフェノキノン化合物などの電子輸送物質、
などが挙げられる。あるいは以上に示した化合物からなる基を主鎖又は側鎖に有する重合体などがあげられる。これらの電荷輸送材料は、1種又は2種以上を組み合せて使用できる。
塗布液を調製する際の分散方法及び塗布液の塗布方法としては、下引き層3や電荷発生層5の場合と同様の方法が適用可能であり、得られる電荷輸送層6の膜厚は5〜50μm、好ましくは10〜40μmが適当である。
先ず、導電性基体として直径30mm、長さ340mm、肉厚1mmのアルミニウム基材を用意し、その外周面に鏡面研削を施した。
ボネート樹脂(粘度平均分子量:40,000)6重量部とをクロルベンゼン80重量部に加えて溶解した塗布液を電荷発生層上に塗布し、135℃、40分の乾燥を行うことにより膜厚32μmの電荷輸送層を形成し、図1に示す構成を有する電子写真感光体を得た。
電荷発生層形成時の浸漬塗布速度を実施例1の2倍にしたこと以外は実施例1と同様にして、感光体を作製し、その反射特性を評価した。得られた結果を表1に示す。
実施例1において下引き層形成用塗布液に添加したシリコーン微粒子の代わりに、別のシリコーン微粒子(トスパール145、GE東芝シリコーン社製、平均粒径:4.0μm)を用いたこと以外は実施例1と同様にして、感光体を作製し、その反射特性を評価した。得られた結果を表1に示す。
また、得られた感光体を用いたこと以外は実施例1と同様にして、画像形成装置を作製し、プリント試験を行った。得られた結果を表1に示す。
実施例1において下引き層塗布液に添加したシリコーン微粒子(トスパール130、GE東芝シリコーン社製、平均粒径:2.5μm)の量を8重量部に変更したこと以外は実施例1と同様にして、感光体を作製し、その反射特性を評価した。得られた結果を表1に示す。
実施例1と同様に下引き層及び電荷発生層を形成した。次に、N’−ジフェニル−N,N’−ビス(3−メチルフェニル)−[1,1’]ビフェニル−4,4’−ジアミン4重量部及びビスフェノールZポリカーボネート樹脂(分子量:4万)6重量部をクロルベンゼン80重量部に加えて溶解し、四フッ化エチレン粒子1重量部(ルブロンL2:ダイキン工業社製)を加えた。さらに、分散助剤(アロンGF300、東亜合成社製)を固形分量として0.3重量部混合し、ホモジナイザーにて分散処理して電荷輸送層形成用塗布液を得た。この塗布液を電荷発生層上に塗布し、115℃、40分の乾燥を行って膜厚20μmの電荷輸送層を形成し、目的の電子写真感光体を得た。得られた感光体について、実施例1と同様にして反射特性を評価した。得られた結果を表1に示す。
下引き層塗布液にシリコーン微粒子(トスパール130、GE東芝シリコーン社製、平均粒径:2.5μm)を添加しなかったこと以外は実施例1と同様にして、感光体を作製し、その反射特性を評価した。得られた結果を表1に示す。
下引き層塗布液に添加するシリコーン微粒子(トスパール130、GE東芝シリコーン社製、平均粒径:2.5μm)を1重量部とした以外は実施例1と同様にして、感光体を作製し、その反射特性を評価した。得られた結果を表1に示す。
実施例1と同様にして下引き層を形成した後、電荷発生層形成時の浸漬塗布速度を実施例1の半速(0.5倍速)にしたこと以外は実施例1と同様にして、感光体を作製し、その反射特性を評価した。得られた結果を表1に示す。
Claims (3)
- 導電性基体と、該基体上に形成されており金属酸化物微粒子を含有する下引き層と、該下引き層上に形成された感光層と、を備える電子写真感光体であって、
前記感光体表面に入射角70°で光を入射させて生じる反射光のうち、前記感光体表面の法線方向に散乱する反射光の反射率の有効画像領域内における平均値が3〜20%であり、
前記感光体表面に入射角15°で光を入射させて生じる正反射光の有効画像領域内における反射率の絶対値の変動幅が5%以下である
ことを特徴とする電子写真感光体。 - 請求項1に記載の電子写真感光体と、
前記感光体を帯電させる帯電装置と、
帯電した前記感光体を露光して静電潜像を形成させる露光装置と、
前記静電潜像を現像してトナー像を形成させる現像装置と、
前記トナー像を前記感光体から画像出力媒体に転写する転写装置と、
を備えることを特徴とする画像形成装置。 - 請求項1に記載の電子写真感光体と、
前記感光体を帯電させる帯電装置、帯電した前記感光体を露光して静電潜像を形成させる露光装置、及び前記感光体の表面を清浄化するクリーニング装置から選ばれる少なくとも1種と、
を備えることを特徴とするプロセスカートリッジ。
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