JPS62231273A - Copying machine - Google Patents
Copying machineInfo
- Publication number
- JPS62231273A JPS62231273A JP61074877A JP7487786A JPS62231273A JP S62231273 A JPS62231273 A JP S62231273A JP 61074877 A JP61074877 A JP 61074877A JP 7487786 A JP7487786 A JP 7487786A JP S62231273 A JPS62231273 A JP S62231273A
- Authority
- JP
- Japan
- Prior art keywords
- transfer paper
- humidity
- transfer
- temperature
- 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 abstract description 6
- 108091008695 photoreceptors Proteins 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 4
- 238000007791 dehumidification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Conveyance By Endless Belt Conveyors (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Counters In Electrophotography And Two-Sided Copying (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
この発明は、転写紙の含水量を調整した後に転写動作を
行う複写機に関する。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application This invention relates to a copying machine that performs a transfer operation after adjusting the moisture content of transfer paper.
（ロ）従来の技術
従来からＷ１写機における転写不良の原因としては、搬
送路や転写・分離チャージャの不備、転写紙のくぜ（た
とえばカール）、そして転写紙の含水などが挙げられる
が、中でも含水量の高い転写紙は極端な転写不良の原因
となる。(B) Conventional technology Conventionally, the causes of transfer defects in W1 copying machines include deficiencies in the conveyance path and transfer/separation charger, curls in the transfer paper, and water content in the transfer paper. Among them, transfer paper with a high water content causes extremely poor transfer.
そのため、転写紙の除湿装置を複写機内ト設け、それに
よって転写紙の含水量を調整するようにした複写機が提
案されている（たとえば、特開昭５９−２１１０５７号
公報参照）。Therefore, a copying machine has been proposed in which a transfer paper dehumidifying device is provided inside the copying machine, thereby adjusting the moisture content of the transfer paper (for example, see Japanese Patent Laid-Open No. 59-211057).
（ハ）発明が解決しようとする問題点
しかしながら、除湿装置を複写機内に設ける場合には転
写紙容器と感光体との間に設置するため、感光体が加熱
されて悪影響を受けたり、複写機全体が長尺化する傾向
があり、好ましくない。(c) Problems to be Solved by the Invention However, when a dehumidifying device is installed in a copying machine, it is installed between the transfer paper container and the photoreceptor, so the photoreceptor may be heated and have an adverse effect, or the copying machine may The overall length tends to become longer, which is not preferable.
この発明はこのような事情を考慮してなされたもので、
定着装置の加熱作用を利用して特に除湿装置を設けるこ
となく、転写紙の除湿を行うことができる複写機を提供
するものである。This invention was made in consideration of these circumstances,
An object of the present invention is to provide a copying machine that can dehumidify transfer paper by utilizing the heating action of a fixing device without the need for a dehumidifying device.
（ニ）問題点を解決するための手段
この発明は、原稿からの露光画像により感光体に形成さ
れる静電潜像を現像装置で現像し、転写紙容器から搬送
される転写紙に画像を転写した後、転写紙を定着装置で
加熱定着して排出するよう構成した複写機において、転
写紙を一時収容する補助容器と、定着装置から送出され
る転写紙を選択的に補助容器へ搬入する搬入手段と、補
助容器から転写紙を感光体の転写部へ搬出する搬出手段
と、定着装置から送出される転写紙を外部への排出又は
補助容器への搬入のいずれかに切換える切換え手段と、
転写紙の湿度が所定値以上のとき出力する第１検出手段
と、定着装置の加熱温度が所定値以上のとき出力する第
２検出手段と、転写紙の湿度および走部装置の加熱温度
が所定値以上のときに所定枚数の転写紙を転写紙容器か
ら定着装置を介して一旦補助容器へ搬入した後に転写部
へ搬出し転写・定容処理して排出する制御手段とを備え
たことを特徴とする複写機である。(d) Means for Solving the Problems This invention develops an electrostatic latent image formed on a photoreceptor by an exposed image from a document using a developing device, and transfers the image onto transfer paper conveyed from a transfer paper container. In a copying machine configured to heat and fix the transfer paper in a fixing device after transfer and discharge it, there is an auxiliary container that temporarily stores the transfer paper, and the transfer paper sent out from the fixing device is selectively carried into the auxiliary container. a carrying-in means, a carrying-out means for carrying out the transfer paper from the auxiliary container to the transfer section of the photoreceptor, and a switching means for switching the transfer paper sent out from the fixing device to either be discharged to the outside or carried into the auxiliary container;
A first detection means that outputs an output when the humidity of the transfer paper is equal to or higher than a predetermined value, a second detection means that outputs an output when the heating temperature of the fixing device is equal to or higher than a predetermined value, and a second detection means that outputs an output when the humidity of the transfer paper and the heating temperature of the running unit are equal to or higher than a predetermined value. A control means for transporting a predetermined number of sheets of transfer paper from a transfer paper container to an auxiliary container via a fixing device, and then transporting the paper to a transfer section, performing transfer and constant volume processing, and discharging the transfer paper when the value exceeds the value. This is a copying machine with
（ホ）作用
第１検出手段により検出される転写紙の湿度が所定値以
上であって除湿が必要な場合には、定着装置の加熱温度
が第２検出手段により検出されて所定値以−上にあると
、転写紙は転写されずに（空コピーの状態で）定着装置
へ搬送される。そして、定着装置によって加熱されて除
湿され、切換手段と搬入手段により補助容器へ搬入され
る。搬入された転写紙は搬出手段によって転写部へ搬出
され感光体から転写された後、定着されて排出される。(e) Operation When the humidity of the transfer paper detected by the first detection means is above a predetermined value and dehumidification is necessary, the heating temperature of the fixing device is detected by the second detection means and is above the predetermined value. , the transfer paper is conveyed to the fixing device without being transferred (in the state of a blank copy). Then, it is heated and dehumidified by the fixing device, and transported to the auxiliary container by the switching means and the transporting means. The conveyed transfer paper is conveyed to the transfer section by the conveyance means, transferred from the photoreceptor, fixed, and discharged.
（へ）実施例
以下、図面に示す実施例に基づいてこの発明を詳述する
。なお、これによってこの発明が限定されるものではな
い。(f) Examples Hereinafter, the present invention will be described in detail based on examples shown in the drawings. Note that this invention is not limited to this.
第１図は、この発明の一実施例を示す構成説明図であり
、１は原稿載置台、２は原稿カバー、３は矢印ａ、ａ’
方向に移動して原稿を露光する露光装置、４は露光ラン
プ、５は露光装置！！３とともに移動し原稿からの反射
光を反射するミラー、６゜７は露光装置３と連動しその
１／２の速度で移動するミラー、８は結像レンズ、９は
固定ミラー、１０は画像光、１１は矢印Ｃ方向に回転し
画像光１ｏによって静Ｗ１潜像が形成される感光体ドラ
ム、１２は感光体ドラム１１を一様に帯電させるメイン
チャージャ、１３は感光体ドラム１１の静電Ｎｗｉを現
像する現像装置、１４は感光体ドラム１１の表面を清浄
にするクリーニング装置、１５は転写紙容器、１５ａは
転写紙容器１５内の転写紙の湿度を検出する湿度センサ
、１６は転写紙を送出する送出ローラ、１１は転写紙の
搬送ローラ、１８はレジストローラ、１９は転写チャー
ジャ、２０は転写紙を感光体ドラム１１がらはく離する
ＡＣチャージャ、２１は搬送ベルト、２２は定着ローラ
、２３は定着用ヒータ、２４は定着ローラ２２の温度を
検出する温度センサ、２５は補助容器、２５ａ搬送ロー
ラ、２６は補助容器への搬入路、２１は補助容器からレ
ジストローラ１８への搬出路、２８は定着ローラ２２か
ら送出される転写紙について排出ローラ２９へ排出する
か又は搬入路２６へ搬入するかを切換える切換片、３０
は排出された転写紙を収容するトレイである。FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention, in which 1 is a document placement table, 2 is a document cover, and 3 is an arrow a, a'.
Exposure device that moves in the direction to expose the original, 4 is an exposure lamp, and 5 is an exposure device! ! 3, a mirror that moves with the exposure device 3 and reflects the reflected light from the original; 6.7, a mirror that moves at 1/2 the speed of the exposure device 3; 8, an imaging lens; 9, a fixed mirror; and 10, an image light beam. , 11 is a photoreceptor drum that rotates in the direction of arrow C and forms a static latent image W1 with image light 1o, 12 is a main charger that uniformly charges the photoreceptor drum 11, and 13 is an electrostatic charge Nwi of the photoreceptor drum 11. 14 is a cleaning device that cleans the surface of the photosensitive drum 11; 15 is a transfer paper container; 15a is a humidity sensor that detects the humidity of the transfer paper in the transfer paper container 15; 16 is a humidity sensor that detects the humidity of the transfer paper in the transfer paper container 15; 11 is a conveyance roller for the transfer paper, 18 is a registration roller, 19 is a transfer charger, 20 is an AC charger for peeling off the transfer paper from the photosensitive drum 11, 21 is a conveyance belt, 22 is a fixing roller, 23 is a A fixing heater, 24 a temperature sensor for detecting the temperature of the fixing roller 22, 25 an auxiliary container, 25a a conveyance roller, 26 an inlet path to the auxiliary container, 21 an outlet path from the auxiliary container to the registration rollers 18, and 28 a a switching piece 30 for switching whether the transfer paper sent out from the fixing roller 22 is discharged to the discharge roller 29 or carried into the carry-in path 26;
is a tray that accommodates the ejected transfer paper.
第２図は第１図の制御回路を示すブロック図であり、３
１はＲＯＭ、ＲＡＭ、ＣＰＬＪそしてＩ１０ボートなど
を内蔵するマイクロコンピュータ、３２はキーボード、
３３はメインモータ、３４は搬送ベルト２１、定着ロー
ラ２２および排出ローラ２９をメインモータ３３に結合
させる０−ラ用Ｗ１磁クラッチ、３５はレジストローラ
１８をメインモータ３３に結合させるレジストローラ用
ｆｆｉ磁クラッチ、３Ｇは感光体１１や現像装Ｗ１１３
の現像用ローラをメインモータに結合させる現像系用？
ｉｉ磁クチクラッチ７は切換片１８を作動させる搬送切
換用電磁クラッチ、３８は露光装置３およびミラー６．
７を移動させる光学系用モータ、３９はメインチャージ
ャ１２、転写チャージャ１９およびＡＣヂＶ−ジャ２０
に放電用高電圧を供給するチャージャ用ドライバ、４０
は送出ローラ１６と搬送ローラ１７をメインモータ３３
に結合させる送出ローラ用′Ｆｉ磁クラッチ、４１は搬
出ローラ２５ａをメインモータ３３に結合させる搬出ロ
ーラ用電磁クラッチである。FIG. 2 is a block diagram showing the control circuit of FIG.
1 is a microcomputer with built-in ROM, RAM, CPLJ, I10 board, etc., 32 is a keyboard,
33 is a main motor; 34 is a W1 magnetic clutch for 0-rollers that connects the conveyor belt 21, fixing roller 22, and ejection roller 29 to the main motor 33; and 35 is an ffi magnetic clutch for registration rollers that connects the registration rollers 18 to the main motor 33. Clutch, 3G is photoreceptor 11 and developing device W113
For a developing system that connects the developing roller to the main motor?
ii. The magnetic clutch 7 is a transport switching electromagnetic clutch that operates the switching piece 18;
7 is an optical system motor for moving; 39 is a main charger 12, a transfer charger 19, and an AC digital V-jar 20;
charger driver for supplying high voltage for discharging, 40
The feed roller 16 and the conveyance roller 17 are connected to the main motor 33.
41 is an electromagnetic clutch for the delivery roller that connects the delivery roller 25a to the main motor 33.
第３図は第１図および第２図の動作の要部を示すフロー
チャートであり、先ずステップ１０１において複写機の
電源スィッチ（図示しない）がオンされるとメインモー
タ３３および定着用ヒータ２３がオンされ、次にキーボ
ード３２によって複写する所定枚数が設定されると（ス
テップ１０２） 、４度センサ２４から定着ローラの温
度Ｔが検出される。温度Ｔが転写紙を除湿できる設定温
度ｔ１以上に達すると（ステップ１０３） 、湿度セン
サ１５ａから転写紙の湿度が検出され、その湿度が所定
湿度より高い場合には、クラッチ３４．３５．３７．４
０がオンされて切換え片２８は破線の位置に移動すると
ともに、転写紙は容器１５がら空コピーで搬送され、定
着ローラ２３で除湿されて補助容器２５へ搬入された後
（ステップ１０４）搬送切換クラッチ３１がオフされて
切換片２８は実線の位置に移動する。温度センサ２４の
検出温度が定着可能温度【２に達するとくステップ１０
５） 、クラッチ３４．３５．３６．３８．４１および
モータ３８、ドライバ３９、露光ランプ４が複写動作に
対応して順次オン・オフされるので、転写紙は搬出ロー
ラ２５ａによって搬出路２７からレジストローラ１８へ
と搬出され、感光体ドラム１１に形成される画像が転写
されて定着ローラ２２によって定着された後、排出ロー
ラ２９を介してトレイ３０へ排出される（ステップ１０
６）。FIG. 3 is a flowchart showing the main parts of the operations in FIGS. 1 and 2. First, in step 101, when the power switch (not shown) of the copying machine is turned on, the main motor 33 and the fixing heater 23 are turned on. Then, when the predetermined number of copies to be made is set using the keyboard 32 (step 102), the temperature T of the fixing roller is detected by the 4 degree sensor 24. When the temperature T reaches a set temperature t1 or higher at which the transfer paper can be dehumidified (step 103), the humidity of the transfer paper is detected by the humidity sensor 15a, and if the humidity is higher than the predetermined humidity, the clutches 34, 35, 37. 4
0 is turned on and the switching piece 28 moves to the position indicated by the broken line, and the transfer paper is conveyed as an empty copy from the container 15, dehumidified by the fixing roller 23, and conveyed to the auxiliary container 25 (step 104). The clutch 31 is turned off and the switching piece 28 moves to the position indicated by the solid line. When the temperature detected by the temperature sensor 24 reaches the fixing temperature [2], step 10
5) Since the clutches 34, 35, 36, 38, 41, the motor 38, the driver 39, and the exposure lamp 4 are sequentially turned on and off in response to the copying operation, the transfer paper is removed from the registration path 27 by the delivery roller 25a. The image formed on the photosensitive drum 11 is transferred to the roller 18 and fixed by the fixing roller 22, and then discharged to the tray 30 via the discharge roller 29 (step 10).
6).
なお、ステップ１０３ａにおいて転写紙の湿度が所定湿
度より高くない場合には動作ルーチンはステップ１０５
へ進む。Note that if the humidity of the transfer paper is not higher than the predetermined humidity in step 103a, the operation routine proceeds to step 105.
Proceed to.
このようにして、転写紙は湿度が所定値より高い場合に
は、複写動作の前に空コピーによって定着ローラで除湿
されてから複写される。In this manner, if the humidity of the transfer paper is higher than a predetermined value, the copying paper is dehumidified by the fixing roller by blank copying before copying is performed.
この実施例においては、定着ローラの除湿可能温度ｔ１
を温度センサ２４から検出するようにしたが、その代り
に電源スィッチのオンと共に所定時間を星１時するタイ
マーを設けて、所定時間経過後は定着ローラは除湿可能
温度に達しているものと判断するようにしてもよい。In this embodiment, the dehumidifying temperature t1 of the fixing roller is
is detected from the temperature sensor 24, but instead, a timer is provided to set a predetermined time to 1 o'clock when the power switch is turned on, and after the predetermined time has elapsed, it is determined that the fixing roller has reached the temperature at which dehumidification is possible. You may also do so.
（ト）発明の効果
この発明によれば、転写紙を定着ローラで加熱して除湿
した後に複写動作を行うので、特別に除湿Ｖｔ置を設け
る必要がなく、複写機が小型化されると共に除湿用の電
力が節減される。(g) Effects of the Invention According to the present invention, since the copying operation is performed after the transfer paper is heated and dehumidified by the fixing roller, there is no need to provide a special dehumidifying Vt position, and the copying machine is downsized and dehumidified. power consumption is saved.
第１図はこの発明の一実施例を示す構成説明図、第２図
は第１図の制御回路を示すブロック図、第３図は第１図
および第２図の動作を示すフローチャートである。
１５・・・・・・転写紙容器、
１５ａ・・・・・・湿度センサ、 ２２・・・・・・定
着ローラ、２３・・・・・・定着用ヒータ、 ２４・・
・・・・温度センサ、２５・・・・・・補助容器、
２５ａ・・・・・・搬出【］−ラ、２６・・・・・・
搬入路、 ２１・・・・・・搬出路、２８・・・
・・・切換片。
第 ２ 閏
第 ３ 閏FIG. 1 is a configuration explanatory diagram showing one embodiment of the present invention, FIG. 2 is a block diagram showing the control circuit of FIG. 1, and FIG. 3 is a flowchart showing the operations of FIGS. 1 and 2. 15... Transfer paper container, 15a... Humidity sensor, 22... Fixing roller, 23... Fixing heater, 24...
... Temperature sensor, 25 ... Auxiliary container,
25a... Carrying out []-ra, 26...
Loading path, 21... Carrying out path, 28...
...Switching piece. 2nd leap 3rd leap
Claims (1)
潜像を現像装置で現像し、転写紙容器から搬送される転
写紙に画像を転写した後、転写紙を定着装置で加熱定着
して排出するよう構成した複写機において、 転写紙を一時収容する補助容器と、定着装置から送出さ
れる転写紙を選択的に補助容器へ搬入する搬入手段と、
補助容器から転写紙を感光体の転写部へ搬出する搬出手
段と、定着装置から送出される転写紙を外部への排出又
は補助容器への搬入のいずれかに切換える切換え手段と
、転写紙の湿度が所定値以上のとき出力する第１検出手
段と、定着装置の加熱温度が所定値以上のとき出力する
第２検出手段と、転写紙の湿度および定着装置の加熱温
度が所定値以上のときに所定枚数の転写紙を転写紙容器
から定着装置を介して一旦補助容器へ搬入した後に転写
部へ搬出し転写・定着処理して排出する制御手段とを備
えたことを特徴とする複写機。[Claims] 1. After developing an electrostatic latent image formed on a photoreceptor by an exposed image from a document using a developing device and transferring the image to a transfer paper conveyed from a transfer paper container, the transfer paper is In a copying machine configured to heat and fix the transfer paper in a fixing device and then discharge the transfer paper, the copying machine includes: an auxiliary container for temporarily storing the transfer paper; a carrying means for selectively carrying the transfer paper sent out from the fixing device into the auxiliary container;
A conveyance means for conveying the transfer paper from the auxiliary container to the transfer section of the photoconductor, a switching means for switching the transfer paper sent out from the fixing device to either be discharged to the outside or carried into the auxiliary container, and a humidity of the transfer paper. a first detection means that outputs an output when the temperature is higher than a predetermined value; a second detection means that outputs an output when the heating temperature of the fixing device is higher than a predetermined value; 1. A copying machine comprising: a control means for transporting a predetermined number of sheets of transfer paper from a transfer paper container to an auxiliary container via a fixing device, and then transporting the sheets to a transfer section where they are subjected to transfer and fixing processing and then discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61074877A JPS62231273A (en) | 1986-03-31 | 1986-03-31 | Copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61074877A JPS62231273A (en) | 1986-03-31 | 1986-03-31 | Copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62231273A true JPS62231273A (en) | 1987-10-09 |
Family
ID=13560012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61074877A Pending JPS62231273A (en) | 1986-03-31 | 1986-03-31 | Copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62231273A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04133256U (en) * | 1991-02-04 | 1992-12-11 | 株式会社リコー | Paper ejection control device in double-sided copying machine |
-
1986
- 1986-03-31 JP JP61074877A patent/JPS62231273A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04133256U (en) * | 1991-02-04 | 1992-12-11 | 株式会社リコー | Paper ejection control device in double-sided copying machine |
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