JPH02132481A - Image forming device of printer or the like - Google Patents
Image forming device of printer or the likeInfo
- Publication number
- JPH02132481A JPH02132481A JP22843988A JP22843988A JPH02132481A JP H02132481 A JPH02132481 A JP H02132481A JP 22843988 A JP22843988 A JP 22843988A JP 22843988 A JP22843988 A JP 22843988A JP H02132481 A JPH02132481 A JP H02132481A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- fixing
- pressure
- carrying
- printer
- 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
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 108091008695 photoreceptors Proteins 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の技術分野）
本発明は、プリンター，複写機等の画像形成装置に関し
、特に紙種による定着部および紙搬送の制御に係るもの
である。DETAILED DESCRIPTION OF THE INVENTION (Industrial Technical Field) The present invention relates to an image forming apparatus such as a printer or a copying machine, and particularly to control of a fixing unit and paper conveyance depending on paper type.
（従来の技術）
従来の小型低速のレーザプリンターの一例を示すと第６
図の側断面に示す構成をとっている。これは給紙部１か
ら矢印八方向に給送された記録紙２は、レジストローラ
対３によってタイミングをとられてドラム状の感光体４
から成る潜像担持体へ搬送される。感光体４は時計方向
に回転駆動され、その際帯電チャージャ５によって表面
を帯電され、レーザ光学系６からのレーザ光Ｌを照射さ
れて感光体上に静電潜像が形成される。この潜像は、現
像部７を通るときトナーによって可視像化され、この可
視像は感光体４へ搬送された記録紙２に転写チャージャ
８により転写され、転写された記録紙上の可視像は定着
部９によって定着される。そして、定着部９を出た記，
録紙は矢印Ｂ方向の排出部１１へ排出される。一方、可
視像転写後の感光体４はクリーニングブレード１２を有
するクリニング部１３によって残留１−ナーを除去され
、除電ブラシ１４で除電作用を受ける。感光体から除去
されたトナーは、回収ローラ１６によって１〜ナー回収
室１５に回収され、ここに収容される。１０はプリンタ
本体、１７は給紙ローラ、そして１８は排紙ローラであ
る。(Prior art) An example of a conventional small, low-speed laser printer is No. 6.
The configuration is shown in the side cross section of the figure. This means that the recording paper 2 fed from the paper feed section 1 in the eight directions of the arrows is timed by a pair of registration rollers 3 and placed on a drum-shaped photoreceptor.
The latent image carrier is conveyed to a latent image carrier consisting of. The photoreceptor 4 is rotationally driven in a clockwise direction, the surface of which is charged by the charging charger 5, and irradiated with laser light L from the laser optical system 6 to form an electrostatic latent image on the photoreceptor. This latent image is made visible by toner when passing through the developing section 7, and this visible image is transferred by the transfer charger 8 to the recording paper 2 conveyed to the photoreceptor 4, and the visible image on the transferred recording paper is The image is fixed by a fixing section 9. And the record of leaving the fixing section 9,
The recording paper is discharged to the discharge section 11 in the direction of arrow B. On the other hand, residual 1-toner is removed from the photoreceptor 4 after the visible image has been transferred by a cleaning section 13 having a cleaning blade 12 , and the charge is removed by a charge removal brush 14 . The toner removed from the photoreceptor is collected by a collection roller 16 into toner collection chambers 1 to 15 and stored therein. 10 is a printer main body, 17 is a paper feed roller, and 18 is a paper discharge roller.
また、前記定着部９の１９はヒートローラ、２０は加圧
ローラであり、ヒートローラはその管内にヒータを有し
、ローラ外周面は約１８０℃前後に加熱されている。一
方、加圧ローラはゴム系の軟らかい材質でスプリングや
レバーによりヒートローラに対し加圧される。紙面に転
写された可視像は、この日ーラ間を通過し，必要熱量を
うろことにより定着される。これは、近年主流の加熱圧
力方式による定着である。Further, in the fixing section 9, 19 is a heat roller, and 20 is a pressure roller. The heat roller has a heater in its tube, and the outer circumferential surface of the roller is heated to about 180.degree. On the other hand, the pressure roller is made of a soft rubber-based material and is pressed against the heat roller by a spring or lever. The visible image transferred to the paper passes through this heat roller and is fixed by measuring the required amount of heat. This is fixing using a heating and pressure method, which has become mainstream in recent years.
また、第７図は大型高速のレーザープリンタの一例を示
す側断面図である。この定着部９は第６図と同様ヒート
ローラ１９、加圧ローラ２０からなる。Further, FIG. 7 is a side sectional view showing an example of a large-scale, high-speed laser printer. This fixing section 9 is composed of a heat roller 19 and a pressure roller 20 as in FIG.
また、２４は紙の搬送部であり、プリン１・動作は第６
図とほぼ同様であるので説明は省略する。In addition, 24 is a paper conveyance section, and the printer 1 operation is carried out by the 6th section.
Since it is almost the same as the figure, the explanation will be omitted.
第８図は第６図と同様の小型低速のレーザープリンター
の一例の側断面を示し、感光体はベルト４Ａで形成され
る点が主に異なり、そのプリント動作は第６図とほぼ同
様であるので説明は省略する。Figure 8 shows a side cross section of an example of a small, low-speed laser printer similar to Figure 6, the main difference being that the photoreceptor is formed by a belt 4A, and its printing operation is almost the same as Figure 6. Therefore, the explanation will be omitted.
（発明が解決しようとする課題）
上述したレーザプリンター等においては、本来紙種に対
する定着最適条件は、それぞれ異なっていたが，１つの
機械の条件はヒータ温度，ローラ加圧力，ローラゴム硬
度等で一定値に決められてしまうため、その条件下で十
分な定着品質が得られる紙種は限られてしまい、多様な
紙種に対応することが困難であった。(Problem to be solved by the invention) In the above-mentioned laser printers, etc., the optimal fixing conditions for each paper type originally differed, but the conditions for one machine are constant, such as heater temperature, roller pressure, roller rubber hardness, etc. Since the value is determined, the types of paper that can obtain sufficient fixing quality under those conditions are limited, making it difficult to deal with a variety of paper types.
また、最近、ローラ加圧力を可変にすることで一部改善
をみたが、加圧力を変えるとローラの接触面積も変わり
、紙の取得熱量も変化してしまうという弊害もあり、十
分に対応することができていない現状であった。Recently, we have seen some improvement by making the roller pressure variable variable, but changing the pressure force also changes the contact area of the rollers, which also changes the amount of heat acquired by the paper, which is a problem that cannot be fully addressed. The current situation was that it was not possible to do so.
また、給紙部（給紙トレイ）により紙種情報を制御部（
Ｃ Ｐ Ｕ）へ伝達して加圧ローラの圧力を制御する従
来技術では、検知手段と加圧手段が必要であり、複数の
紙種に対しては、複数の検知手段を必要とし、経済的で
なく、構造が複雑となるという不具合があった。In addition, the paper type information is sent to the control unit (by the paper feed unit (paper feed tray)).
The conventional technology that controls the pressure of the pressure roller by transmitting the pressure to the CPU requires a detection means and a pressure means, and requires multiple detection means for multiple paper types, making it economically However, the problem was that the structure was complicated.
本発明は、上述した問題点を解消し、多様な紙種に対応
して定着品質の良好な画像形成装置をうろことを目的と
するものである。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide an image forming apparatus that can handle various types of paper and has good fixing quality.
（構成および作用）
本発明は、上記目的を達成するため像担体上に画像を形
成し、この画像をシート材上に転写，定着を行なうプリ
ンター等の画像形成装置に於いて、通紙する紙種情報を
給紙部から制御部に伝達し、この制御部は紙種情報にも
とづき定着部の温度，圧力または紙の搬送速度を制御す
ることを特徴とするものである。(Structure and operation) In order to achieve the above object, the present invention forms an image on an image carrier, and transfers and fixes the image onto a sheet material. The paper type information is transmitted from the paper feed section to the control section, and the control section controls the temperature and pressure of the fixing section or the conveyance speed of the paper based on the paper type information.
本発明は、紙種に対応した定着温度，定着圧力紙の搬送
速度を適切とすることにより、定着品質が良好なものが
得られる。In the present invention, good fixing quality can be obtained by appropriate fixing temperature and fixing pressure paper conveyance speed corresponding to the paper type.
（実施例）
第１図は本発明の一実施例による制御系のブロック図を
示し、２１は給紙部で、給紙カセットをセツ１〜するこ
とによりカセットに設けられた紙種検知物品の形状で紙
種を自動検知するカセット方式、またはスイッチによっ
て紙種をセッｈするスイッチ方式により紙種情報を制御
部２２に伝達する。制御部２２は紙種情報を判断し、紙
種に応じたヒータ設定温度を選択する温度制御および紙
種に応じた加圧制御を定着部２３に伝達する。定着部２
３は制御部からの温度または加圧制御によりヒートロー
ラまたは加圧ローラあるいはその両方が制御され、ヒー
トローラのヒータ温度情報を制御部に帰還し、常に紙種
に応じた最適ヒータ温度になっているか否か検知し制御
する。なお、制御部は定着部のヒータ温度を設定する場
合に、ヒータ温度を上げるためには設定温度を高めに設
定することにより、定着を確実にする。(Embodiment) FIG. 1 shows a block diagram of a control system according to an embodiment of the present invention. Reference numeral 21 denotes a paper feed section, and by setting the paper feed cassette to Paper type information is transmitted to the control unit 22 using a cassette method that automatically detects the paper type based on its shape or a switch method that sets the paper type using a switch. The control unit 22 determines the paper type information and transmits temperature control for selecting a heater setting temperature according to the paper type and pressure control according to the paper type to the fixing unit 23. Fixing part 2
3, the heat roller, the pressure roller, or both are controlled by the temperature or pressure control from the control section, and the heater temperature information of the heat roller is fed back to the control section, so that the optimum heater temperature is always maintained according to the paper type. Detect and control whether or not there is a vehicle. Note that when setting the heater temperature of the fixing unit, the control unit sets the set temperature to be higher in order to raise the heater temperature, thereby ensuring fixing.
第２図は給紙部２１に封筒カセットをセットした場合で
あり、給紙部２１からの紙種情報により制御部２２へ封
筒であることを伝達する。制御部２２は定着部２３の加
圧ローラ、例えば第６図の加圧ローラ２０の加圧可変レ
バーを切替え加圧ローラの圧力を弱める。また、それと
同時にヒートローラ、例えば第６図のヒートローラ１９
のヒータの設定温度を高めに設定する。このように加圧
ローラの圧力を弱めることによって封筒の排出を容易と
する反面、定着のための熱量が減少しないようにヒート
ローラの温度を高くすることによって、封筒のような厚
手の紙に対しても取得熱量を確保し定着を完全ならしめ
る。FIG. 2 shows a case where an envelope cassette is set in the paper feed section 21, and the paper type information from the paper feed section 21 informs the control section 22 that it is an envelope. The control section 22 switches the variable pressure lever of the pressure roller of the fixing section 23, for example, the pressure roller 20 in FIG. 6, to weaken the pressure of the pressure roller. At the same time, a heat roller, for example, heat roller 19 in FIG.
Set the heater temperature higher. By weakening the pressure of the pressure roller in this way, envelopes can be easily ejected, but by increasing the temperature of the heat roller so as not to reduce the amount of heat required for fusing, it is possible to eject envelopes with thick paper like envelopes. It ensures the amount of heat obtained and completes fixation.
第３図は本発明の別の実施例による制御系のブロック図
を示す。これは紙種により定着温度を上げる代りに紙の
搬送速度を下げ、それにより転写材に熱量を与える時間
を増加させることで、結果的に温度を上げるのと同じ効
果を得るようにした。FIG. 3 shows a block diagram of a control system according to another embodiment of the invention. Instead of increasing the fixing temperature depending on the type of paper, the paper transport speed is lowered, thereby increasing the time for applying heat to the transfer material, resulting in the same effect as increasing the temperature.
前述した第６図の小型低速レーザープリンターでは定着
温度をあまり上昇させると他の部分に影響するため一定
の温度領域までしかできないが、この実施例によれば定
着温度を上げることなく定？が良好なものが得られ、よ
り広い範囲の転写材の搬送，定着性の同時確立が可能と
なった。The compact low-speed laser printer shown in FIG. 6 mentioned above can only reach a certain temperature range because if the fixing temperature is increased too much, it will affect other parts, but according to this embodiment, the fixing temperature can be maintained at a constant temperature without increasing the fixing temperature. It has become possible to convey a wider range of transfer materials and to simultaneously establish fixing properties.
次に動作を説明すると、給紙部２１に封筒用カセットを
セットすると、制御部（ＣＰＵ）２２は封筒が給紙され
ることを検知することにより、（ア）加圧ローラのロー
ラ加圧を弱める。（イ）搬送速度を落す。（ウ）給紙間
隔を広げる。等の判断を行なう。Next, to explain the operation, when an envelope cassette is set in the paper feed section 21, the control section (CPU) 22 detects that an envelope is being fed, and (a) applies pressure to the pressure roller. weaken. (b) Decrease the conveyance speed. (c) Increase the paper feed interval. etc., etc.
そして、加圧可変レバー制御信号Ｓ■により定着部２３
の加圧レバーを制御して加圧力を低下させる。それと同
時に転写後の搬送力を与えている搬送部の搬送用モータ
２４Ａをモータ回転数制御信号Ｓ２により制御し、搬送
速度（定着ローラ回転，搬送部）を加圧力と対応させて
下げる。一方、搬送速度を下げた場合、給紙間隔を広げ
る制御信号Ｓ３で給紙間隔を広げ、転写材の重なりを防
ぎ、適正な給紙搬送をうる。Then, the fixing unit 23 is
Control the pressurizing lever to reduce the pressurizing force. At the same time, the conveyance motor 24A of the conveyance unit, which applies the conveyance force after transfer, is controlled by the motor rotation speed control signal S2, and the conveyance speed (fixing roller rotation, conveyance unit) is lowered in accordance with the pressing force. On the other hand, when the conveyance speed is lowered, the paper feed interval is increased by a control signal S3 that increases the paper feed interval, thereby preventing overlapping of transfer materials and ensuring proper paper feeding and conveyance.
この第３図の実施例は、搬送速度が速く，定着ニップ幅
（転写材を加圧ローラとヒートローラで挟んだ時の送り
方向の長さ）が大きく、かつ転写後の紙の搬送部２４を
持つような大型高速なプリンター（第７図）について特
に有効である。The embodiment shown in FIG. 3 has a high conveyance speed, a large fixing nip width (the length in the conveying direction when the transfer material is sandwiched between the pressure roller and the heat roller), and the conveyance section 24 of the paper after transfer. This is particularly effective for large-scale, high-speed printers (see Figure 7).
第４図および第５図は本発明の別の実施例を示し、給紙
部（給紙トレイ）に設けた突起物の上下変動のみで、給
紙トレイ上にセット（第４図）された記録紙２の紙種に
応じて加圧ローラ２ｏの加圧力を調整し、また給紙トレ
イをプリンタ本体１０がらリセット時（第５図）におい
ては、加圧ローラ２０に対する加圧力を下げ、加圧ロー
ラの変形を防止し長寿命化をはかるようにしている。FIGS. 4 and 5 show another embodiment of the present invention, in which the sheet can be set on the paper feed tray (see FIG. 4) by only vertically moving the protrusion provided on the paper feed section (paper feed tray). The pressing force of the pressure roller 2o is adjusted according to the paper type of the recording paper 2, and when the paper feed tray is reset from the printer main body 10 (FIG. 5), the pressing force of the pressure roller 20 is lowered. This prevents deformation of the pressure roller and extends its life.
第４図は給紙１〜レイＩＡをプリンタ本体１ｏにセット
したときの状態を示す。ここで加圧ローラ２ｏの加圧ス
プリング２０Ｓを支持する支持体２５は、中央に支点２
６を持つリンク２７と結合部２８で結合されている。そ
して、支持体２５は矢印ＡＷＢ方向へ上、下可動となっ
ている。また、支持体２５はストッパー２９で支持され
ている。FIG. 4 shows the state when paper feed 1 to ray IA are set in the printer main body 1o. Here, the support body 25 that supports the pressure spring 20S of the pressure roller 2o has a fulcrum 2 at the center.
It is connected to a link 27 having a number 6 and a connecting portion 28. The support body 25 is movable upward and downward in the direction of arrow AWB. Further, the support body 25 is supported by a stopper 29.
いま、給紙１−レイＩＡがプリンタ本体１ｏにセットす
ると、給紙トレイＩＡには矢印Ｃ方向に力をあたえるた
めの突起物ＩＢがあるので、リンク２７は支点２６を中
心にリンク一端（右端）がＣ矢印の下方向へ，またリン
ク他端（左端）で支持体２５をＡ矢印の上方向への力が
加わる。即ち加圧スプリング２０Ｓを介して加圧ローラ
２０に対する加圧力が増加する。Now, when the paper feed tray IA is set in the printer main body 1o, since the paper feed tray IA has a protrusion IB for applying force in the direction of arrow C, the link 27 will move around the fulcrum 26 at one end of the link (the right end). ) is applied in the downward direction of arrow C, and force is applied to the support body 25 at the other end (left end) of the link in the upward direction of arrow A. That is, the pressure applied to the pressure roller 20 increases via the pressure spring 20S.
このときの加圧力ｆは、支持体２５のストッパー２９か
ら上昇した高さをχｍとして次式で求められる。The pressing force f at this time is determined by the following equation, where the height of the support 25 from the stopper 29 is χm.
ｆ＝ＫＸ＋ｆ’
ただし、Ｋはばね定数（ｇｆ／ｎｕｎ）ｆ′は給紙トレ
イＩＡが無しの時の
加圧力（ｇｆ）
ｆは加圧力（ｇ ｆ）
ここで、ストッパー２９からの支持体２５の上昇高さχ
ｍは、給紙トレイＩＡの突起物ＩＢの高さで調節でき、
紙種によってこの突起物の高さを調節すればよい。これ
は給紙トレイから紙種情報を制御部へ伝送する際、各紙
種にかかわらず、その紙種検知手段と加圧手段を１つで
行なうことができるという利点がある。f =K rising height χ
m can be adjusted by the height of the protrusion IB on the paper feed tray IA,
The height of this protrusion may be adjusted depending on the type of paper. This has the advantage that when transmitting paper type information from the paper feed tray to the control unit, one paper type detection means and one pressure means can be used regardless of the paper type.
ｑ−
次に第５図は給紙トレイＩＡをプリンタ本体１ｏにセッ
トしないときの状態を示す。この場合は、給紙トレイＩ
Ａによるリンク２７への作用はないが、加圧スプリング
２０Ｓによって支持体２５は下向き（Ｂ矢印）の力が与
えられている。そして、支持体２５はストッパー２９に
よって支えられ、このとき、加圧ローラ２０からヒート
ローラ１９への加圧スプリング２０Ｓによって生じる加
圧カは，ストッパー２９の高さで調節できる。したがっ
て、プリンタ本体１０へ給紙トレイＩＡがセットされな
いときは，加圧ローラ２０が変形しない程度の加圧カを
与えるようにしておけばよく、加圧ローラの長寿命をは
かることができる。q- Next, FIG. 5 shows the state when the paper feed tray IA is not set in the printer main body 1o. In this case, paper feed tray I
Although there is no action by A on the link 27, a downward force (indicated by arrow B) is applied to the support body 25 by the pressurizing spring 20S. The support body 25 is supported by a stopper 29, and at this time, the pressure force generated by the pressure spring 20S from the pressure roller 20 to the heat roller 19 can be adjusted by adjusting the height of the stopper 29. Therefore, when the paper feed tray IA is not set in the printer main body 10, it is sufficient to apply pressure to the extent that the pressure roller 20 is not deformed, and the life of the pressure roller can be extended.
（発明の効果）
以上述べたように本発明は、多様な紙種に対応するよう
に定着部の加圧ローラの加圧，ヒートローラのヒータ温
度または搬送速度，給紙間隔を給紙部からの紙種情報に
もとづき制御部でもって自動制御ができるようにした。(Effects of the Invention) As described above, the present invention allows the pressure of the pressure roller of the fixing section, the heater temperature or conveyance speed of the heat roller, and the paper feeding interval to be adjusted from the paper feeding section to accommodate various paper types. Automatic control can be performed by the control unit based on the paper type information.
しがも厚紙の定着のような時、加圧力を弱めた場合、ヒ
ータ温度を上げるか、搬送速度を下げ給紙間隔を広げる
かして定着に必要な熱量を一定な値に確保でき、良好な
定着品質が保たれるようにしたものである。However, when fixing thick paper, if the pressure is weakened, the amount of heat required for fusing can be maintained at a constant value by increasing the heater temperature or by lowering the transport speed and increasing the paper feeding interval, which is good. This ensures that the fixing quality is maintained.
また、船種検知とそれに対応する加圧ローラに対する加
圧とが、給紙トレイに設けた突起物を調節するのみで行
なえるという効果がある。Further, there is an advantage that the ship type detection and the corresponding pressure applied to the pressure roller can be performed simply by adjusting the protrusion provided on the paper feed tray.
第１図は本発明の一実施例の制御系ブロック図、第２図
は封筒に対し定着処理する場合の一実施例の制御系ブロ
ック図、第３図は本発明の別の実施例の制御系ブロック
図、第４図および第５図は本発明の別の実施例による紙
種による加圧ローラの制御機構を示す図、第６図ないし
第８図は各種レーザプリンターの構成を示す側断面図で
ある。
ＩＡ・・・給紙トレイ、 ＩＢ・・・突起物、１９・・
・ ヒートローラ、 ２０・・・加圧ローラ、２Ｉ・・
・給紙部、２２・・・制御部、２３・・・定着部、２４
・・・搬送部、２４Ａ・・・搬送用モータ、２０Ｓ・・
・加圧スプリング、２５・・・支持体、２６・・・支点
、２７・・・ リン１２一FIG. 1 is a control system block diagram of one embodiment of the present invention, FIG. 2 is a control system block diagram of one embodiment when fixing an envelope, and FIG. 3 is a control system block diagram of another embodiment of the present invention. System block diagram, FIGS. 4 and 5 are diagrams showing the control mechanism of the pressure roller according to the paper type according to another embodiment of the present invention, and FIGS. 6 to 8 are side cross sections showing the configurations of various laser printers. It is a diagram. IA...Paper feed tray, IB...Protrusion, 19...
・Heat roller, 20...Pressure roller, 2I...
-Paper feeding section, 22...control section, 23...fixing section, 24
...Transportation unit, 24A...Transportation motor, 20S...
- Pressure spring, 25... Support body, 26... Fulcrum, 27... Ring 12-
Claims (3)
上に転写、定着を行なうプリンター等の画像形成装置に
於いて、通紙する紙種情報を給紙部から制御部に伝達し
、この制御部は紙種情報にもとづき定着部の温度、圧力
または紙の搬送速度を制御することを特徴とするプリン
ター等の画像形成装置。(1) In an image forming device such as a printer that forms an image on an image carrier and transfers and fixes this image onto a sheet material, information on the paper type to be fed is transmitted from the paper feed section to the control section. An image forming apparatus such as a printer, wherein the control section controls the temperature, pressure, or paper conveyance speed of the fixing section based on paper type information.
ーラの定着圧力を弱め、ヒートローラの定着温度を高め
るようにしたことを特徴とする請求項（１）記載のプリ
ンター等の画像形成装置。(2) The printer according to claim (1), wherein when the paper type to be passed is thick paper such as an envelope, the fixing pressure of the pressure roller is weakened and the fixing temperature of the heat roller is increased. image forming device.
度を上げる代りに搬送および定着ローラ回転速度を下げ
、同時に定着圧力をそれに対応して強めることを特徴と
する請求項（１）記載のプリンター等の画像形成装置。(3) When the paper type to be passed is thick paper such as an envelope, the conveying and fixing roller rotational speeds are lowered instead of increasing the fixing temperature, and at the same time, the fixing pressure is correspondingly increased. ) An image forming device such as a printer described in
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22843988A JPH02132481A (en) | 1988-07-28 | 1988-09-14 | Image forming device of printer or the like |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18679888 | 1988-07-28 | ||
| JP63-186798 | 1988-07-28 | ||
| JP22843988A JPH02132481A (en) | 1988-07-28 | 1988-09-14 | Image forming device of printer or the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02132481A true JPH02132481A (en) | 1990-05-21 |
Family
ID=26503984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22843988A Pending JPH02132481A (en) | 1988-07-28 | 1988-09-14 | Image forming device of printer or the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02132481A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001215842A (en) * | 2000-01-31 | 2001-08-10 | Ricoh Co Ltd | Fixing device, method for fixation and image forming apparatus |
| US6304731B1 (en) * | 2000-06-08 | 2001-10-16 | Lexmark International, Inc. | Printer for narrow media |
| JP2005035144A (en) * | 2003-07-18 | 2005-02-10 | Canon Inc | Image formation device and its controlling method |
| JP2007102119A (en) * | 2005-10-07 | 2007-04-19 | Canon Inc | Image forming apparatus |
| JP2007212526A (en) * | 2006-02-07 | 2007-08-23 | Ricoh Co Ltd | Fixing device and image forming apparatus |
| JP2008511352A (en) * | 2004-09-02 | 2008-04-17 | ニコライセン，ペレ | System to hang different items on the wall |
| US7369271B2 (en) | 2002-06-28 | 2008-05-06 | Canon Kabushiki Kaisha | Image processing apparatus and its method, and control method |
| US7428390B2 (en) | 2005-07-27 | 2008-09-23 | Canon Kabushiki Kaisha | Image fixing apparatus with variable fixing modes |
| JP2009063629A (en) * | 2007-09-04 | 2009-03-26 | Kyocera Mita Corp | Image forming apparatus |
| CN102096358A (en) * | 2009-12-11 | 2011-06-15 | 富士施乐株式会社 | Fixing device and image forming apparatus |
| EP3293579A1 (en) * | 2016-09-09 | 2018-03-14 | Konica Minolta, Inc. | Sheet feeding apparatus and image forming apparatus |
| JP2018084609A (en) * | 2016-11-21 | 2018-05-31 | コニカミノルタ株式会社 | Fixing device, image forming apparatus, and pressure switching method |
| JP2018205390A (en) * | 2017-05-31 | 2018-12-27 | キヤノン株式会社 | Image forming apparatus |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001215842A (en) * | 2000-01-31 | 2001-08-10 | Ricoh Co Ltd | Fixing device, method for fixation and image forming apparatus |
| US6304731B1 (en) * | 2000-06-08 | 2001-10-16 | Lexmark International, Inc. | Printer for narrow media |
| US7554694B2 (en) | 2002-06-28 | 2009-06-30 | Canon Kabushiki Kaisha | Image processing apparatus and its method, and control method |
| US8203758B2 (en) | 2002-06-28 | 2012-06-19 | Canon Kabushiki Kaisha | Image processing apparatus and its method, and control method |
| US7880931B2 (en) | 2002-06-28 | 2011-02-01 | Canon Kabushiki Kaisha | Image processing apparatus and its method, and control method |
| US7369271B2 (en) | 2002-06-28 | 2008-05-06 | Canon Kabushiki Kaisha | Image processing apparatus and its method, and control method |
| JP2005035144A (en) * | 2003-07-18 | 2005-02-10 | Canon Inc | Image formation device and its controlling method |
| JP2008511352A (en) * | 2004-09-02 | 2008-04-17 | ニコライセン，ペレ | System to hang different items on the wall |
| US7428390B2 (en) | 2005-07-27 | 2008-09-23 | Canon Kabushiki Kaisha | Image fixing apparatus with variable fixing modes |
| JP2007102119A (en) * | 2005-10-07 | 2007-04-19 | Canon Inc | Image forming apparatus |
| JP2007212526A (en) * | 2006-02-07 | 2007-08-23 | Ricoh Co Ltd | Fixing device and image forming apparatus |
| US7937006B2 (en) * | 2007-09-04 | 2011-05-03 | Kyocera Mita Corporation | Image forming apparatus with improved pressure control |
| JP2009063629A (en) * | 2007-09-04 | 2009-03-26 | Kyocera Mita Corp | Image forming apparatus |
| CN102096358A (en) * | 2009-12-11 | 2011-06-15 | 富士施乐株式会社 | Fixing device and image forming apparatus |
| US20110142469A1 (en) * | 2009-12-11 | 2011-06-16 | Fuji Xerox Co., Ltd. | Fixing device and image forming apparatus |
| US8417168B2 (en) * | 2009-12-11 | 2013-04-09 | Fuji Xerox Co., Ltd. | Fixing device having a thermal-insulation member provided on a plate portion for guiding recording medium, and image forming apparatus |
| CN102096358B (en) * | 2009-12-11 | 2014-12-31 | 富士施乐株式会社 | Fixing device and image forming apparatus |
| EP3293579A1 (en) * | 2016-09-09 | 2018-03-14 | Konica Minolta, Inc. | Sheet feeding apparatus and image forming apparatus |
| CN107807501A (en) * | 2016-09-09 | 2018-03-16 | 柯尼卡美能达株式会社 | Paper feed and image processing system |
| US10358308B2 (en) | 2016-09-09 | 2019-07-23 | Konica Minolta, Inc. | Sheet feeding apparatus and image forming apparatus |
| JP2018084609A (en) * | 2016-11-21 | 2018-05-31 | コニカミノルタ株式会社 | Fixing device, image forming apparatus, and pressure switching method |
| JP2018205390A (en) * | 2017-05-31 | 2018-12-27 | キヤノン株式会社 | Image forming apparatus |
| US11016413B2 (en) | 2017-05-31 | 2021-05-25 | Canon Kabushiki Kaisha | Image forming apparatus that controls a thermal fixing condition of a fixing portion based on thermal characteristic information of toner |
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