JPH0440251U - - Google Patents
Info
- Publication number
- JPH0440251U JPH0440251U JP8284390U JP8284390U JPH0440251U JP H0440251 U JPH0440251 U JP H0440251U JP 8284390 U JP8284390 U JP 8284390U JP 8284390 U JP8284390 U JP 8284390U JP H0440251 U JPH0440251 U JP H0440251U
- Authority
- JP
- Japan
- Prior art keywords
- roller
- heat roller
- contact
- small amount
- liquid
- 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
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fixing For Electrophotography (AREA)
Description
第１図は本考案の定着装置の一実施例を示す概
要図、第２図はオフセツト防止液微量塗布ローラ
をヒートローラに接離させる接離装置を示す斜視
図、第３図は作動状態を示す概略図、第４図は本
考案の定着装置のタイミングチヤート、第５図は
同じくフローチヤート、第６図は従来の定着装置
の一例を示す概要図である。
２……ヒートローラ、３……加圧ローラ、５…
…オフセツト防止液微量塗布ローラ、１３……支
軸、１４……レバー、１５……スプリング、１６
……ソレノイド、１７……排紙センサー、２０…
…接離装置、Ｎ……ニツプ、Ｐ……転写紙。
Fig. 1 is a schematic diagram showing an embodiment of the fixing device of the present invention, Fig. 2 is a perspective view showing a contact/separation device for bringing a small amount of anti-offset liquid application roller into contact with/separating from the heat roller, and Fig. 3 shows the operating state. FIG. 4 is a timing chart of the fixing device of the present invention, FIG. 5 is a flowchart of the same, and FIG. 6 is a schematic diagram showing an example of a conventional fixing device. 2... Heat roller, 3... Pressure roller, 5...
... Offset prevention liquid small amount application roller, 13 ... Support shaft, 14 ... Lever, 15 ... Spring, 16
...Solenoid, 17... Paper ejection sensor, 20...
...Contact/separation device, N...Nip, P...Transfer paper.
Claims (1)
トローラに、オフセツト防止液微量塗布ローラに
よりオフセツト防止液を供給するようにしてある
定着装置において、上記オフセツト防止液微量塗
布ローラをヒートローラから離れた位置に配置し
、且つ上記オフセツト防止液微量塗布ローラをヒ
ートローラに当接させたりヒートローラから離反
させたりする接離装置を備え、更に、上記ニツプ
の下流に位置する排紙部に、転写紙を上記ヒート
ローラと加圧ローラで定着させる際に上記接離装
置を作動させるための排紙センサーを設けてなる
ことを特徴とする定着装置。 (2) 転写紙が排紙センサーの位置を通過してい
るときにだけ排紙センサーの信号に基づき接離装
置を作動させてオフセツト防止液微量塗布ローラ
をヒートローラに当接させるよう構成した請求項
(1)記載の定着装置。[Scope of Claim for Utility Model Registration] (1) In a fixing device in which an anti-offset liquid is supplied to a heat roller forming a nip with a pressure roller by a roller applying a small amount of anti-offset liquid, The roller for applying a small amount of liquid is disposed at a position apart from the heat roller, and further includes a contact/separation device for bringing the small amount of offset prevention liquid application roller into contact with the heat roller and separating it from the heat roller, and further provided at a position downstream of the nip. A fixing device characterized in that a paper discharging section located at is provided with a paper discharging sensor for operating the contacting and separating device when the transfer paper is fixed by the heat roller and the pressure roller. (2) A claim in which a contact/separation device is operated based on a signal from a paper ejection sensor only when the transfer paper passes the paper ejection sensor position, and the roller for applying a small amount of anti-offset liquid is brought into contact with the heat roller. term
(1) Fixing device described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8284390U JPH0440251U (en) | 1990-08-03 | 1990-08-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8284390U JPH0440251U (en) | 1990-08-03 | 1990-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0440251U true JPH0440251U (en) | 1992-04-06 |
Family
ID=31630011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8284390U Pending JPH0440251U (en) | 1990-08-03 | 1990-08-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0440251U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009069398A (en) * | 2007-09-12 | 2009-04-02 | Ricoh Co Ltd | Fixing device and image forming apparatus |
-
1990
- 1990-08-03 JP JP8284390U patent/JPH0440251U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009069398A (en) * | 2007-09-12 | 2009-04-02 | Ricoh Co Ltd | Fixing device and image forming apparatus |
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