JPH0347572U - - Google Patents
Info
- Publication number
- JPH0347572U JPH0347572U JP10780989U JP10780989U JPH0347572U JP H0347572 U JPH0347572 U JP H0347572U JP 10780989 U JP10780989 U JP 10780989U JP 10780989 U JP10780989 U JP 10780989U JP H0347572 U JPH0347572 U JP H0347572U
- Authority
- JP
- Japan
- Prior art keywords
- heat fixing
- fixing roller
- electrophotographic apparatus
- roller
- safety device
- 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 1
- 238000013021 overheating Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Fixing For Electrophotography (AREA)
Description
第１図はこの考案の一実施例である定着器の一
部の概略構成図、第２図はその定着器の安全装置
が熱定着ローラから離れるときの説明図、第３図
はその定着器の熱定着ローラと安全装置の電源立
ち上げ時における温度上昇特性を示す説明図、第
４図その定着器を備えるレーザプリンタで、その
内部機構の全体概略構成図を示す。
１０……装置本体、１７……用紙、２４……定
着器、２７……定着ローラ、２８……加圧ローラ
、３１……温度変位部材、３２……安全装置。
Figure 1 is a schematic diagram of a part of a fuser that is an embodiment of this invention, Figure 2 is an explanatory diagram of the fuser when the safety device is separated from the heat fixing roller, and Figure 3 is the fuser. FIG. 4 is an explanatory diagram showing the temperature rise characteristics of the heat fixing roller and the safety device when the power is turned on. FIG. 4 is a schematic diagram of the entire internal mechanism of a laser printer equipped with the fixing device. DESCRIPTION OF SYMBOLS 10... Apparatus body, 17... Paper, 24... Fixing device, 27... Fixing roller, 28... Pressure roller, 31... Temperature displacement member, 32... Safety device.
Claims (1)
ローラの過熱を防止する安全装置と、その熱定着
ローラに押し当てる加圧ローラとを備え、転写後
の用紙を前記熱定着ローラと加圧ローラとで挾ん
で搬送しながその用紙上の転写像を定着する電子
写真装置の定着器において、 前記安全装置を、前記電子写真装置本体が作動
していないとき、前記熱定着ローラの表面に接触
する第１位置と、作動して一定温度になると前記
熱定着ローラの表面から退避する第２位置とに変
化する温度変位部材で保持してなる、 電子写真装置の定着器。[Claims for Utility Model Registration] A heat fixing roller with a built-in heating element, a safety device to prevent the heat fixing roller from overheating, and a pressure roller that presses the heat fixing roller against the heat fixing roller. In the fixing device of an electrophotographic apparatus that fixes a transferred image on a sheet while being conveyed while being sandwiched between the heat fixing roller and the pressure roller, the safety device is installed when the main body of the electrophotographic apparatus is not operating; An electrophotographic apparatus, wherein the electrophotographic apparatus is held by a temperature changing member that changes between a first position in contact with the surface of the heat fixing roller and a second position in which it retreats from the surface of the heat fixing roller when activated and reaches a certain temperature. Fuser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10780989U JPH0347572U (en) | 1989-09-14 | 1989-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10780989U JPH0347572U (en) | 1989-09-14 | 1989-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0347572U true JPH0347572U (en) | 1991-05-02 |
Family
ID=31656484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10780989U Pending JPH0347572U (en) | 1989-09-14 | 1989-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0347572U (en) |
-
1989
- 1989-09-14 JP JP10780989U patent/JPH0347572U/ja active Pending
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