JPS6384162U - - Google Patents
Info
- Publication number
- JPS6384162U JPS6384162U JP17894986U JP17894986U JPS6384162U JP S6384162 U JPS6384162 U JP S6384162U JP 17894986 U JP17894986 U JP 17894986U JP 17894986 U JP17894986 U JP 17894986U JP S6384162 U JPS6384162 U JP S6384162U
- Authority
- JP
- Japan
- Prior art keywords
- pressing force
- image density
- pressure
- toner image
- fixing 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Fixing For Electrophotography (AREA)
Description
第１図は本考案の一実施例における定着装置の
構成を表わした説明的側面図、第２図は制御部を
表わしたブロツク線図、第３図ａ，ｂおよびｃは
制御要素と画像濃度との関係を示した線図、第４
図ないし第１２図は本考案の他の実施例における
制御要素と画像濃度との関係をそれぞれ示した線
図、第１３図は一般の定着装置の構成を表わした
説明的側面図である。
１２……加圧ローラ、１７……エアシリンダー
、１８……電磁弁、２１……センサー、２１……
電磁弁制御回路。
FIG. 1 is an explanatory side view showing the configuration of a fixing device in an embodiment of the present invention, FIG. 2 is a block diagram showing a control section, and FIGS. 3 a, b, and c show control elements and image density. Diagram showing the relationship between
12 through 12 are diagrams showing the relationship between control elements and image density in other embodiments of the present invention, and FIG. 13 is an explanatory side view showing the configuration of a general fixing device. 12...Pressure roller, 17...Air cylinder, 18...Solenoid valve, 21...Sensor, 21...
Solenoid valve control circuit.
Claims (1)
押圧する加圧ローラに通してトナー像の定着を行
なうようにした定着装置において、上記トナー像
の画像濃度を検知する画像濃度センサーと、加圧
ローラの加圧力を変更せしめる加圧力調整手段と
、上記画像濃度センサーから出力される検知信号
に基づいて加圧力調整手段を駆動せしめ、画像濃
度に比例するように加圧ローラの加圧力を変動さ
せる加圧力制御手段とを備えてなることを特徴と
する定着装置。 A fixing device that fixes the toner image by passing the recording material onto which the toner image has been transferred through a pressure roller that presses the recording material with a predetermined pressure force includes an image density sensor that detects the image density of the toner image; A pressing force adjusting means for changing the pressing force of the pressure roller, and a pressing force adjusting means driven based on a detection signal output from the image density sensor to vary the pressing force of the pressing roller in proportion to the image density. 1. A fixing device comprising a pressure control means for controlling pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17894986U JPS6384162U (en) | 1986-11-20 | 1986-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17894986U JPS6384162U (en) | 1986-11-20 | 1986-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6384162U true JPS6384162U (en) | 1988-06-02 |
Family
ID=31121562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17894986U Pending JPS6384162U (en) | 1986-11-20 | 1986-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6384162U (en) |
-
1986
- 1986-11-20 JP JP17894986U patent/JPS6384162U/ja active Pending