JP2014160286A5 - - Google Patents

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Publication number
JP2014160286A5
JP2014160286A5 JP2014120260A JP2014120260A JP2014160286A5 JP 2014160286 A5 JP2014160286 A5 JP 2014160286A5 JP 2014120260 A JP2014120260 A JP 2014120260A JP 2014120260 A JP2014120260 A JP 2014120260A JP 2014160286 A5 JP2014160286 A5 JP 2014160286A5
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JP
Japan
Prior art keywords
heater
glass tube
fixing device
tip portion
fixing
Prior art date
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Application number
JP2014120260A
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Japanese (ja)
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JP2014160286A (en
JP5861742B2 (en
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Priority to JP2014120260A priority Critical patent/JP5861742B2/en
Priority claimed from JP2014120260A external-priority patent/JP5861742B2/en
Publication of JP2014160286A publication Critical patent/JP2014160286A/en
Publication of JP2014160286A5 publication Critical patent/JP2014160286A5/ja
Application granted granted Critical
Publication of JP5861742B2 publication Critical patent/JP5861742B2/en
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Claims (7)

状の定着フィルムと、
前記定着フィルムの内側にて発熱するヒータと、
前記定着フィルムの内面に接触し、前記ヒータと第1の方向において対向するニップ板と、
前記ニップ板との間で前記定着フィルムを挟むことで前記定着フィルムとの間にニップ部を形成するバックアップ部材とを備え、前記ニップ部において、記録シートを所定の搬送方向に搬送して現像剤像を記録シート上に熱定着する定着装置であって、
ヒータは、ガラス管と、前記ガラス管の内部に配置された熱源と、を有し、
前記ガラス管は、前記ガラス管の長手方向からみたときに、前記ガラス管の外周面から突出するチップ部を有し、
前記ヒータのガラス管は、前記ガラス管の長手方向と直交するとともに前記チップ部を通過する平面で切った断面において、前記第1の方向における寸法が前記第1の方向と直交する第2の方向における寸法より大きく、
前記チップ部は、前記ニップ板へ向けて突出する、ことを特徴とする定着装置。
A cylindrical fixing film;
A heater for hand heating the inside of the fixing film,
A nip plate that contacts the inner surface of the fixing film and faces the heater in a first direction ;
A backup member that forms a nip portion between the fixing film and the fixing film by sandwiching the fixing film with the nip plate, and in the nip portion, the recording sheet is conveyed in a predetermined conveyance direction to develop the developer A fixing device for thermally fixing an image on a recording sheet,
The heater has a glass tube, and a heat source disposed inside the glass tube,
The glass tube has a tip portion protruding from the outer peripheral surface of the glass tube when viewed from the longitudinal direction of the glass tube,
The glass tube of the heater is a second direction in which the dimension in the first direction is perpendicular to the first direction in a cross section cut by a plane perpendicular to the longitudinal direction of the glass tube and passing through the tip portion. Larger than the dimensions in
The fixing device , wherein the tip portion protrudes toward the nip plate .
ヒータからの輻射熱をニップ板へ向けて反射する反射板をさらに備え、
前記反射板は、前記ニップ板から離れる方向に窪む凹部を有し、
前記ヒータのガラス管は、前記ガラス管の長手方向と直交するとともに前記チップ部を通過する平面で切った断面において、前記反射板の凹部の内側に位置することを特徴とする請求項1に記載の定着装置。
A reflection plate that reflects the radiant heat from the heater toward the nip plate;
The reflector has a recess that is recessed in a direction away from the nip plate,
The glass tube of the heater is located inside the concave portion of the reflecting plate in a cross section cut by a plane perpendicular to the longitudinal direction of the glass tube and passing through the chip portion. Fixing device.
前記反射板の凹部は、略U字形状であることを特徴とする請求項に記載の定着装置。
The fixing device according to claim 2 , wherein the concave portion of the reflecting plate is substantially U-shaped .
前記ニップ板の前記チップ部と対向する面は、前記チップ部から離れる方向に窪んでいることを特徴とする請求項1から請求項3のいずれか一項に記載の定着装置。
4. The fixing device according to claim 1, wherein a surface of the nip plate that faces the tip portion is recessed in a direction away from the tip portion . 5.
前記ヒータは、ハロゲンランプ、カーボンヒータ、及び赤外線ヒータのいずれかであることを特徴とする請求項1から請求項4のいずれか一項に記載の定着装置。
The fixing device according to any one of claims 1 to 4, wherein the heater is any one of a halogen lamp, a carbon heater, and an infrared heater .
前記ヒータのチップ部は、前記搬送方向の上流へ向けて突出する、ことを特徴とする請求項1から請求項5のいずれか一項に記載の定着装置。The fixing device according to claim 1, wherein a tip portion of the heater protrudes upstream in the transport direction.
前記ヒータのチップ部は、前記搬送方向の下流へ向けて突出する、ことを特徴とする請求項1から請求項5のいずれか一項に記載の定着装置。6. The fixing device according to claim 1, wherein the tip portion of the heater protrudes downstream in the transport direction.
JP2014120260A 2014-06-11 2014-06-11 Fixing device Active JP5861742B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014120260A JP5861742B2 (en) 2014-06-11 2014-06-11 Fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014120260A JP5861742B2 (en) 2014-06-11 2014-06-11 Fixing device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2013130288A Division JP5561408B2 (en) 2013-06-21 2013-06-21 Fixing device

Publications (3)

Publication Number Publication Date
JP2014160286A JP2014160286A (en) 2014-09-04
JP2014160286A5 true JP2014160286A5 (en) 2014-11-27
JP5861742B2 JP5861742B2 (en) 2016-02-16

Family

ID=51611951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014120260A Active JP5861742B2 (en) 2014-06-11 2014-06-11 Fixing device

Country Status (1)

Country Link
JP (1) JP5861742B2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0221667U (en) * 1988-07-29 1990-02-14
JP4651382B2 (en) * 2004-12-28 2011-03-16 京セラミタ株式会社 Fixing device heater mounting structure
JP2008233886A (en) * 2007-02-19 2008-10-02 Ricoh Co Ltd Fixing device and image forming apparatus

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