JP2008261955A5 - - Google Patents
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- Publication number
- JP2008261955A5 JP2008261955A5 JP2007103290A JP2007103290A JP2008261955A5 JP 2008261955 A5 JP2008261955 A5 JP 2008261955A5 JP 2007103290 A JP2007103290 A JP 2007103290A JP 2007103290 A JP2007103290 A JP 2007103290A JP 2008261955 A5 JP2008261955 A5 JP 2008261955A5
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- electrophotographic developer
- particle size
- particles
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002245 particle Substances 0.000 description 115
- 239000011162 core material Substances 0.000 description 49
- 230000005415 magnetization Effects 0.000 description 43
- 239000002994 raw material Substances 0.000 description 43
- 239000000843 powder Substances 0.000 description 37
- 239000000203 mixture Substances 0.000 description 29
- 238000002441 X-ray diffraction Methods 0.000 description 27
- 230000000052 comparative effect Effects 0.000 description 24
- 238000002156 mixing Methods 0.000 description 17
- 238000010304 firing Methods 0.000 description 14
- 238000001144 powder X-ray diffraction data Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 229910000859 α-Fe Inorganic materials 0.000 description 8
- 239000006247 magnetic powder Substances 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000002270 dispersing agent Substances 0.000 description 4
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 229910001035 Soft ferrite Inorganic materials 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 108091008695 photoreceptors Proteins 0.000 description 2
- 229920005646 polycarboxylate Polymers 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- -1 simple substances Chemical class 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 101100513612 Microdochium nivale MnCO gene Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007103290A JP5038002B2 (ja) | 2007-04-10 | 2007-04-10 | 電子写真現像剤用キャリア芯材およびその製造方法、電子写真現像剤用キャリア、並びに電子写真現像剤 |
| US12/450,321 US8592123B2 (en) | 2007-04-10 | 2008-04-09 | Carrier core material for electrophotographic developer, and manufacturing method of the same, carrier for electrophotographic developer, and electrophotographic developer |
| CN200880011592XA CN101663622B (zh) | 2007-04-10 | 2008-04-09 | 电子照相显影剂用载体芯材及其制造方法、电子照相显影剂用载体、以及电子照相显影剂 |
| KR1020097023383A KR101468247B1 (ko) | 2007-04-10 | 2008-04-09 | 전자 사진 현상제용 캐리어 코어재 및 이의 제조 방법, 전자 사진 현상제용 캐리어 및 전자 사진 현상제 |
| EP08740128.7A EP2136253B1 (en) | 2007-04-10 | 2008-04-09 | Carrier core material for electrophotographic developing agent, process for producing the carrier core material, carrier for electrophotographic developing agent, and electrophotographic developing agent |
| PCT/JP2008/057025 WO2008126869A1 (ja) | 2007-04-10 | 2008-04-09 | 電子写真現像剤用キャリア芯材およびその製造方法、電子写真現像剤用キャリア、並びに電子写真現像剤 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007103290A JP5038002B2 (ja) | 2007-04-10 | 2007-04-10 | 電子写真現像剤用キャリア芯材およびその製造方法、電子写真現像剤用キャリア、並びに電子写真現像剤 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2008261955A JP2008261955A (ja) | 2008-10-30 |
| JP2008261955A5 true JP2008261955A5 (enExample) | 2010-05-13 |
| JP5038002B2 JP5038002B2 (ja) | 2012-10-03 |
Family
ID=39863966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007103290A Active JP5038002B2 (ja) | 2007-04-10 | 2007-04-10 | 電子写真現像剤用キャリア芯材およびその製造方法、電子写真現像剤用キャリア、並びに電子写真現像剤 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8592123B2 (enExample) |
| EP (1) | EP2136253B1 (enExample) |
| JP (1) | JP5038002B2 (enExample) |
| KR (1) | KR101468247B1 (enExample) |
| CN (1) | CN101663622B (enExample) |
| WO (1) | WO2008126869A1 (enExample) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5298481B2 (ja) * | 2006-09-14 | 2013-09-25 | コニカミノルタ株式会社 | キャリアの製造方法 |
| JP2011107286A (ja) * | 2009-11-13 | 2011-06-02 | Dowa Electronics Materials Co Ltd | 電子写真現像用キャリア芯材およびその製造方法、電子写真現像用キャリア並びに二成分系電子写真現像剤 |
| JP5478322B2 (ja) * | 2010-03-30 | 2014-04-23 | Ｄｏｗａエレクトロニクス株式会社 | フェライト粒子及びそれを用いた電子写真現像用キャリア、電子写真用現像剤並びにフェライト粒子の製造方法 |
| EP2555056B1 (en) | 2010-03-31 | 2017-01-25 | DOWA Electronics Materials Co., Ltd. | Carrier core material for electrophotographic developing agent, carrier for electrophotographic developing agent, and electrophotographic developing agent |
| JP5977924B2 (ja) * | 2011-03-16 | 2016-08-24 | Ｄｏｗａエレクトロニクス株式会社 | 電子写真現像剤用キャリア芯材の製造方法、電子写真現像剤用キャリアの製造方法、および電子写真現像剤の製造方法 |
| JP6494453B2 (ja) * | 2015-07-10 | 2019-04-03 | Ｄｏｗａエレクトロニクス株式会社 | キャリア芯材並びにこれを用いた電子写真現像用キャリア及び電子写真用現像剤 |
| US10409188B2 (en) * | 2017-02-10 | 2019-09-10 | Canon Kabushiki Kaisha | Magnetic carrier, two-component developer, replenishing developer, and image forming method |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4734598B2 (ja) * | 1999-09-21 | 2011-07-27 | Ｄｏｗａエレクトロニクス株式会社 | ソフトフェライトの製造法 |
| JP3828727B2 (ja) * | 2000-08-04 | 2006-10-04 | 三井金属鉱業株式会社 | 酸化鉄粒子 |
| JP2002296846A (ja) | 2001-03-30 | 2002-10-09 | Powdertech Co Ltd | 電子写真現像剤用キャリア及び該キャリアを用いた現像剤 |
| JP2006038961A (ja) * | 2004-07-22 | 2006-02-09 | Fuji Xerox Co Ltd | 静電荷像現像用キャリア、静電荷像現像剤、静電荷像現像用キャリアの製造方法および画像形成方法 |
| JP4578295B2 (ja) * | 2005-03-18 | 2010-11-10 | 京セラミタ株式会社 | ２成分現像剤用磁性トナーおよび該現像剤を用いた画像形成方法 |
| CN1851560A (zh) * | 2005-04-22 | 2006-10-25 | 株式会社理光 | 电子照相调色剂、显影剂以及图像形成装置 |
| JP2006323211A (ja) * | 2005-05-19 | 2006-11-30 | Dowa Mining Co Ltd | 電子写真現像用キャリアおよびその製造方法、並びに電子写真現像剤 |
| JP4781015B2 (ja) * | 2005-06-03 | 2011-09-28 | パウダーテック株式会社 | 電子写真用フェライトキャリア芯材、電子写真用フェライトキャリア及びこれらの製造方法、並びに該フェライトキャリアを用いた電子写真用現像剤 |
| JP4862181B2 (ja) * | 2005-06-22 | 2012-01-25 | Ｄｏｗａエレクトロニクス株式会社 | 電子写真現像用キャリア芯材およびその製造方法、電子写真現像用キャリア、並びに電子写真現像剤 |
| JP2007034149A (ja) * | 2005-07-29 | 2007-02-08 | Fujifilm Holdings Corp | 回転検出方法及び装置、及び写真フイルムパトローネのフイルム係止検出方法及び装置 |
| US8652736B2 (en) * | 2005-09-29 | 2014-02-18 | Dowa Ip Creation Co., Ltd. | Electrophotographic developer carrier core material, electrophotographic developer carrier, methods of manufacturing the same, and electrophotographic developer |
-
2007
- 2007-04-10 JP JP2007103290A patent/JP5038002B2/ja active Active
-
2008
- 2008-04-09 KR KR1020097023383A patent/KR101468247B1/ko not_active Expired - Fee Related
- 2008-04-09 EP EP08740128.7A patent/EP2136253B1/en active Active
- 2008-04-09 WO PCT/JP2008/057025 patent/WO2008126869A1/ja not_active Ceased
- 2008-04-09 CN CN200880011592XA patent/CN101663622B/zh not_active Expired - Fee Related
- 2008-04-09 US US12/450,321 patent/US8592123B2/en active Active
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