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
- Authority
- JP
- Japan
- Prior art keywords
- heater
- glass tube
- fixing device
- tip portion
- fixing
- 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
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Claims (7)
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 .
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.
The fixing device according to claim 2 , wherein the concave portion of the reflecting plate is substantially U-shaped .
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.
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 .
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)
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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2014
- 2014-06-11 JP JP2014120260A patent/JP5861742B2/en active Active
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