JPH0440252U - - Google Patents
Info
- Publication number
- JPH0440252U JPH0440252U JP8257790U JP8257790U JPH0440252U JP H0440252 U JPH0440252 U JP H0440252U JP 8257790 U JP8257790 U JP 8257790U JP 8257790 U JP8257790 U JP 8257790U JP H0440252 U JPH0440252 U JP H0440252U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- fixing
- heater
- fixing heater
- supplied
- 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 description 2
- 238000010792 warming Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 230000001131 transforming effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
- Control Of Resistance Heating (AREA)
- Control Of Temperature (AREA)
Description
第１図は、本考案の一実施例である定着装置を
示すブロツク図である。
符号の説明、１０１……定着ローラ、１０２…
…加圧ローラ、１０３……定着ヒータ、１０４…
…用紙、１０５……ＳＳＲ、１０６……変圧器、
１０７……変圧器の一次側巻線、１０８……変圧
器の二次側巻線、１０９……リレー、１１１……
温度検知素子、１１０……交流電源、１１２……
温度制御回路、１１３……メイン制御回路。
FIG. 1 is a block diagram showing a fixing device which is an embodiment of the present invention. Explanation of symbols, 101... Fixing roller, 102...
...Pressure roller, 103... Fixing heater, 104...
...Paper, 105...SSR, 106...Transformer,
107... Primary winding of transformer, 108... Secondary winding of transformer, 109... Relay, 111...
Temperature detection element, 110... AC power supply, 112...
Temperature control circuit, 113...main control circuit.
Claims (1)
画像形成装置の画像定着工程に用いられる定着装
置において、 前記定着ローラのウオームアツプ時に使用する
第１の電圧、及び、前記定着ローラのウオームア
ツプ完了後に使用する第２の電圧の２つの電圧を
供給する変圧手段と、 前記変圧手段と前記定着ヒータとの間に配置さ
れ、前記第１の電圧及び第２の電圧の切り換えを
行う切り換え手段と、 前記定着ローラの温度を検知する温度検知手段
と、 ウオームアツプ時に前記切り換え手段を制御し
て、前記定着ヒータへ前記第１の電圧を供給し、
前記温度検知手段を介してウオームアツプ完了を
検知した時、前記切り換え手段を制御して、前記
定着ヒータへの第２の電圧を供給する制御手段と
を備えたことを特徴とする定着装置。 (2) 前記請求項１において、 前記第１の電圧は、前記画像形成装置全体の消
費電力を増加させることなく、ウオームアツプ時
に前記定着ヒータへ供給できる最大電圧であり、 前記第２の電圧は、前記画像形成装置の画像定
着工程に割り当てられた消費電力に基づいて決定
された所定電圧であることを特徴とする定着装置
。[Scope of claims for utility model registration] (1) Equipped with a fixing roller with a built-in fixing heater,
In a fixing device used in an image fixing step of an image forming apparatus, two voltages are supplied: a first voltage used when warming up the fixing roller, and a second voltage used after warming up the fixing roller. a switching means disposed between the voltage transforming means and the fixing heater and switching between the first voltage and the second voltage; a temperature detecting means detecting the temperature of the fixing roller; controlling the switching means during warm-up to supply the first voltage to the fixing heater;
A fixing device comprising: control means for controlling the switching means to supply a second voltage to the fixing heater when completion of warm-up is detected via the temperature detection means. (2) In the first aspect, the first voltage is a maximum voltage that can be supplied to the fixing heater during warm-up without increasing power consumption of the entire image forming apparatus, and the second voltage is a maximum voltage that can be supplied to the fixing heater during warm-up. , a fixing device characterized in that the voltage is a predetermined voltage determined based on power consumption allocated to an image fixing process of the image forming device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8257790U JPH0440252U (en) | 1990-08-03 | 1990-08-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8257790U JPH0440252U (en) | 1990-08-03 | 1990-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0440252U true JPH0440252U (en) | 1992-04-06 |
Family
ID=31629522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8257790U Pending JPH0440252U (en) | 1990-08-03 | 1990-08-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0440252U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07282706A (en) * | 1994-04-14 | 1995-10-27 | Mitsuki Nagamoto | Single stable polarized electromagnet |
| JP2006018291A (en) * | 2004-06-29 | 2006-01-19 | Samsung Electronics Co Ltd | Heat generator for fixing unit, power supply device, fixing unit and fixing device |
-
1990
- 1990-08-03 JP JP8257790U patent/JPH0440252U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07282706A (en) * | 1994-04-14 | 1995-10-27 | Mitsuki Nagamoto | Single stable polarized electromagnet |
| JP2006018291A (en) * | 2004-06-29 | 2006-01-19 | Samsung Electronics Co Ltd | Heat generator for fixing unit, power supply device, fixing unit and fixing device |
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