JPH02136272U - - Google Patents
Info
- Publication number
- JPH02136272U JPH02136272U JP4613089U JP4613089U JPH02136272U JP H02136272 U JPH02136272 U JP H02136272U JP 4613089 U JP4613089 U JP 4613089U JP 4613089 U JP4613089 U JP 4613089U JP H02136272 U JPH02136272 U JP H02136272U
- Authority
- JP
- Japan
- Prior art keywords
- fixing device
- paper
- guide plate
- guide
- conveyed
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Fixing For Electrophotography (AREA)
- Paper Feeding For Electrophotography (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Description
第1図は本考案の定着装置とガイド板との関係
を示す側面図、第2図と第2a図はそれぞれ用紙
の移動の状態の説明図、第3図は用紙が定着され
ている状態の説明図、第4図は本考案の別の実施
例の側面図、第5図は第4図に示されるガイド板
の正面図、第6図は本考案の他の実施例の斜視図
、第7図は一般的な画像形成装置の説明図、第8
図は従来の定着装置における画像のずれを示す説
明図、第9図は用紙に生じるボウイングの説明図
、第9a図はその正面図であり、第10図は用紙
の湾曲状態の説明図である。
図中の符号、1……感光体ドラム、7……搬送
ベルト装置、10……定着装置、11……加熱ロ
ーラ、12……加圧ローラ、15……ガイド板。
Fig. 1 is a side view showing the relationship between the fixing device of the present invention and the guide plate, Figs. 2 and 2a are explanatory diagrams of the state of paper movement, and Fig. 3 shows the state of paper being fixed. 4 is a side view of another embodiment of the present invention, FIG. 5 is a front view of the guide plate shown in FIG. 4, and FIG. 6 is a perspective view of another embodiment of the present invention. Figure 7 is an explanatory diagram of a general image forming apparatus;
The figure is an explanatory diagram showing image deviation in a conventional fixing device, Fig. 9 is an explanatory diagram of bowing that occurs in paper, Fig. 9a is a front view thereof, and Fig. 10 is an explanatory diagram of a curved state of paper. . Symbols in the figure: 1...photosensitive drum, 7...transport belt device, 10...fixing device, 11...heating roller, 12...pressure roller, 15...guide plate.
Claims (1)
転写部から搬送ベルト装置とガイド板とを介して
定着装置に搬送し、該定着装置の加熱ローラと加
圧ローラとの間にニツプして加熱と加圧とを行い
、トナーを溶融して用紙に定着する装置において
、 前記搬送ベルト装置と定着装置との間に配置す
るガイド板を、その定着装置側の先端部の高さを
、両ローラの間のニツプ位置に対して、加熱ロー
ラの径に比較して50%以上高い位置に設定され
るとともに、 前記ガイド板の先端部が両ローラによるニツプ
位置から、用紙の巾に応じて所定の距離だけ離間
されるように配置されることを特徴とする定着装
置における用紙案内装置。 (2) 未定着トナー画像を担持する用紙を、画像
転写部から搬送ベルト装置とガイド板とを介して
定着装置に搬送し、該定着装置の加熱ローラと加
圧ローラとの間にニツプして加熱と加圧とを行い
、トナーを溶融して用紙に定着する装置において
、 前記搬送ベルト装置と定着装置との間に配置す
るガイド板の用紙搬送方向の両側の部分を、下方
に斜めに折り曲げて、頂部が平らな略山型のガイ
ド面を形成することを特徴とする定着装置におけ
る用紙案内装置。 (3) 未定着トナー画像を担持する用紙を、画像
転写部から搬送ベルト装置とガイド板とを介して
定着装置に搬送し、該定着装置の加熱ローラと加
圧ローラとの間にニツプして加熱と加圧とを行い
、トナーを溶融して用紙に定着する装置において
、 前記搬送ベルト装置と定着装置との間に配置す
るガイド板を、用紙搬送方向に対して中央部が高
く、両側の部分が垂下された状態の湾曲面で構成
したことを特徴とする定着装置における用紙案内
装置。[Claims for Utility Model Registration] (1) The paper bearing the unfixed toner image is conveyed from the image transfer section to the fixing device via a conveyor belt device and a guide plate, and the paper carrying the unfixed toner image is conveyed to the fixing device by the heating roller of the fixing device and pressurized. In a device that melts toner and fixes it on paper by nipping it between a roller and applying heat and pressure, a guide plate disposed between the conveyor belt device and the fixing device is placed on the side of the fixing device. The height of the tip of the guide plate is set to be at least 50% higher than the diameter of the heating roller with respect to the nip position between the two rollers, and the tip of the guide plate is set at a position higher than the nip position between the two rollers. A paper guide device in a fixing device, characterized in that the paper guide device is arranged so as to be spaced apart by a predetermined distance depending on the width of the paper. (2) The sheet carrying the unfixed toner image is conveyed from the image transfer section to the fixing device via the conveying belt device and the guide plate, and is nipped between the heating roller and pressure roller of the fixing device. In a device that melts toner and fixes it on paper by applying heat and pressure, portions on both sides of the guide plate in the paper conveyance direction, which is disposed between the conveyance belt device and the fixing device, are bent diagonally downward. 1. A paper guide device in a fixing device, characterized in that a guide surface is formed in a substantially mountain shape with a flat top. (3) The sheet carrying the unfixed toner image is conveyed from the image transfer section to the fixing device via the conveying belt device and the guide plate, and is nipped between the heating roller and pressure roller of the fixing device. In a device that uses heat and pressure to melt toner and fix it on paper, a guide plate disposed between the conveyor belt device and the fixing device has a guide plate that is high in the center with respect to the paper conveyance direction and that is high on both sides. A paper guide device in a fixing device, characterized in that it is constructed of a curved surface with a portion hanging down.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4613089U JPH02136272U (en) | 1989-04-19 | 1989-04-19 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4613089U JPH02136272U (en) | 1989-04-19 | 1989-04-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02136272U true JPH02136272U (en) | 1990-11-14 |
Family
ID=31560937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4613089U Pending JPH02136272U (en) | 1989-04-19 | 1989-04-19 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02136272U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998054623A1 (en) * | 1997-05-28 | 1998-12-03 | Mitsubishi Denki Kabushiki Kaisha | Electrophotographic recorder |
JP2014178673A (en) * | 2013-02-18 | 2014-09-25 | Canon Inc | Image forming apparatus |
JP2015223897A (en) * | 2014-05-27 | 2015-12-14 | マツダ株式会社 | Seat belt device |
-
1989
- 1989-04-19 JP JP4613089U patent/JPH02136272U/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998054623A1 (en) * | 1997-05-28 | 1998-12-03 | Mitsubishi Denki Kabushiki Kaisha | Electrophotographic recorder |
JP2014178673A (en) * | 2013-02-18 | 2014-09-25 | Canon Inc | Image forming apparatus |
JP2015223897A (en) * | 2014-05-27 | 2015-12-14 | マツダ株式会社 | Seat belt device |
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