JPH0362371U - - Google Patents
Info
- Publication number
- JPH0362371U JPH0362371U JP12336889U JP12336889U JPH0362371U JP H0362371 U JPH0362371 U JP H0362371U JP 12336889 U JP12336889 U JP 12336889U JP 12336889 U JP12336889 U JP 12336889U JP H0362371 U JPH0362371 U JP H0362371U
- Authority
- JP
- Japan
- Prior art keywords
- roller
- state
- heating roller
- pressure roller
- 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
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
Landscapes
- Fixing For Electrophotography (AREA)
Description
第1図は本考案の第1実施例の動作を説明する
ための模式図、第2図は第1実施例の構成を示す
ブロツク図、第3図は第1実施例の外観斜視図で
あり、第4図は第3図において第1実施例を矢印
A方向から見たときの要部を示す側面図、第5図
は第1実施例において塗布ローラーの位置制御を
説明するための模式図、第6図は第1実施例にお
いて加熱ローラーの表面温度の経時変化を示すグ
ラフ、第7図は第1実施例の動作を説明するため
のフローチヤートである。第8図は本考案の第2
実施例を示す模式図であり、第9図は本考案の第
3実施例の要部を示す斜視図である。
1……加熱ローラー、2……加圧ローラー、3
a,3b,3c,3d,3e,3f……塗布ロー
ラー、4a,4b……回転軸、5……支持部材、
6……ステツピングモーター、7……歯車、8…
…パルス板、8f……穴、9……フオトインタラ
プタ(P.I.)、10……制御部、11……操
作部、12……位置検出手段、13……温度検出
手段、14……支持部材駆動回路、15……加熱
ローラー駆動回路、16……定着ヒーター、20
a,20b……マイクロスイツチ。
Fig. 1 is a schematic diagram for explaining the operation of the first embodiment of the present invention, Fig. 2 is a block diagram showing the configuration of the first embodiment, and Fig. 3 is an external perspective view of the first embodiment. , FIG. 4 is a side view showing the main parts of the first embodiment when viewed from the direction of arrow A in FIG. 3, and FIG. 5 is a schematic diagram for explaining position control of the application roller in the first embodiment. , FIG. 6 is a graph showing the change over time in the surface temperature of the heating roller in the first embodiment, and FIG. 7 is a flowchart for explaining the operation of the first embodiment. Figure 8 is the second version of this invention.
FIG. 9 is a schematic diagram showing an embodiment, and FIG. 9 is a perspective view showing a main part of a third embodiment of the present invention. 1... Heating roller, 2... Pressure roller, 3
a, 3b, 3c, 3d, 3e, 3f... Application roller, 4a, 4b... Rotating shaft, 5... Support member,
6...Stepping motor, 7...Gear, 8...
...Pulse plate, 8f...Hole, 9...Photo interrupter (P.I.), 10...Control unit, 11...Operation unit, 12...Position detection means, 13...Temperature detection means, 14... Supporting member drive circuit, 15... Heating roller drive circuit, 16... Fixing heater, 20
a, 20b...Micro switch.
Claims (1)
と、該加熱ローラーに接触回転する加圧ローラー
と、前記加熱ローラー及び/又は前記加圧ローラ
ーに接触してオフセツト防止液を塗布する複数の
塗布手段と、少なくとも1つの塗布手段が前記加
熱ローラー及び/又は加圧ローラーに接触してい
る第1状態とすべての塗布手段が前記加熱ローラ
ー及び加圧ローラーから離脱している第2状態と
の切り換えを行う制御手段と、から成る定着装置
。 (2) 前記塗布手段が塗布ローラーであることを
特徴とする第1請求項に記載の定着装置。 (3) 前記塗布ローラーが前記加熱ローラー及び
/又は加圧ローラーの円周方向に複数個配置され
ていることを特徴とする第2請求項に記載の定着
装置。 (4) 前記塗布ローラーが前記加熱ローラー及び
/又は加圧ローラーの軸方向に複数個配置されて
いることを特徴とする第2請求項又は第3請求項
に記載の定着装置。 (5) 長さの異なる2つの塗布ローラーを両端で
支持する支持部材を移動させることによつて、前
記第1状態と第2状態との切り換えを行うことを
特徴とする第2請求項に記載の定着装置。[Claims for Utility Model Registration] (1) A heating roller that can be adjusted to a predetermined surface temperature, a pressure roller that rotates in contact with the heating roller, and an offset roller that contacts the heating roller and/or the pressure roller. A first state in which a plurality of application means apply the prevention liquid, at least one application means is in contact with the heating roller and/or the pressure roller, and a first state in which all the application means are separated from the heating roller and the pressure roller. and a control means for switching between a second state and a second state. (2) The fixing device according to claim 1, wherein the coating means is a coating roller. (3) The fixing device according to claim 2, wherein a plurality of the application rollers are arranged in a circumferential direction of the heating roller and/or the pressure roller. (4) The fixing device according to claim 2 or 3, wherein a plurality of the application rollers are arranged in the axial direction of the heating roller and/or the pressure roller. (5) According to the second claim, the first state and the second state are switched by moving a support member that supports two application rollers having different lengths at both ends. fixing device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12336889U JPH0362371U (en) | 1989-10-20 | 1989-10-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12336889U JPH0362371U (en) | 1989-10-20 | 1989-10-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0362371U true JPH0362371U (en) | 1991-06-18 |
Family
ID=31671348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12336889U Pending JPH0362371U (en) | 1989-10-20 | 1989-10-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0362371U (en) |
-
1989
- 1989-10-20 JP JP12336889U patent/JPH0362371U/ja active Pending
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