JPH0320366U - - Google Patents
Info
- Publication number
- JPH0320366U JPH0320366U JP8184289U JP8184289U JPH0320366U JP H0320366 U JPH0320366 U JP H0320366U JP 8184289 U JP8184289 U JP 8184289U JP 8184289 U JP8184289 U JP 8184289U JP H0320366 U JPH0320366 U JP H0320366U
- Authority
- JP
- Japan
- Prior art keywords
- fixing
- roller
- recording paper
- fixing roller
- pressure
- 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
- 238000003825 pressing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
Landscapes
- Controlling Sheets Or Webs (AREA)
- Fixing For Electrophotography (AREA)
- Paper Feeding For Electrophotography (AREA)
Description
第１図は本考案の定着装置の一実施例を示す分
解斜視図、第２図は印字工程時における要部の関
係を示す概略図、第３図はジヤム紙の処理時にお
ける要部の関係を示す概略図、第４図は本考案の
定着装置を備えたレーザープリンタの概要図、第
５図はジヤム紙除去時の状態を示すレーザープリ
ンタの概要図、第６図は従来の定着装置における
ジヤム紙の除去方式を示す概略図である。
１０……定着装置、１５ａ……上ユニツト、１
５ｂ……下ユニツト、１８……定着ローラ、１９
……加圧ローラ、２０……回転方向切換装置、２
４……加圧ばね（加圧力付与装置）。
Fig. 1 is an exploded perspective view showing one embodiment of the fixing device of the present invention, Fig. 2 is a schematic diagram showing the relationship of the main parts during the printing process, and Fig. 3 is the relationship of the main parts during the processing of jam paper. FIG. 4 is a schematic diagram of a laser printer equipped with the fixing device of the present invention, FIG. 5 is a schematic diagram of the laser printer showing the state when jam paper is removed, and FIG. 6 is a schematic diagram of a laser printer equipped with the fixing device of the present invention. FIG. 3 is a schematic diagram showing a jam paper removal method. 10... Fixing device, 15a... Upper unit, 1
5b... Lower unit, 18... Fixing roller, 19
... Pressure roller, 20 ... Rotation direction switching device, 2
4... Pressure spring (pressure force applying device).
Claims (1)
に分割されていて記録紙のジヤム処理時に上記上
ユニツトを開けて記録紙を取り除くような構成を
有する画像形成装置で用いられる定着ローラと該
定着ローラに加圧させるようにした加圧ローラと
を備えてなる定着装置において、上記定着ローラ
への加圧ローラの加圧力を付与させる装置を加圧
ローラの軸受部に備え、且つ上記上ユニツトを開
いたときに上記定着ローラの回転方向を記録紙搬
送方向への回転方向とは逆方向へ切り換え回転方
向切換装置を装備してなることを特徴とする定着
装置。 A fixing roller used in an image forming apparatus which is divided into an upper unit and another unit in a recording paper conveyance path and has a structure in which the upper unit is opened and the recording paper is removed when jamming the recording paper. A fixing device comprising a pressure roller configured to apply pressure to the fixing roller, wherein a device for applying pressure from the pressure roller to the fixing roller is provided in a bearing portion of the pressure roller, and the upper unit is opened. A fixing device characterized in that the fixing device is equipped with a rotation direction switching device that switches the rotation direction of the fixing roller to a direction opposite to the rotation direction in the recording paper conveyance direction when the fixing roller is rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8184289U JPH0320366U (en) | 1989-07-11 | 1989-07-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8184289U JPH0320366U (en) | 1989-07-11 | 1989-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0320366U true JPH0320366U (en) | 1991-02-27 |
Family
ID=31628134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8184289U Pending JPH0320366U (en) | 1989-07-11 | 1989-07-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0320366U (en) |
-
1989
- 1989-07-11 JP JP8184289U patent/JPH0320366U/ja active Pending
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