JPH03147666A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPH03147666A JPH03147666A JP28531289A JP28531289A JPH03147666A JP H03147666 A JPH03147666 A JP H03147666A JP 28531289 A JP28531289 A JP 28531289A JP 28531289 A JP28531289 A JP 28531289A JP H03147666 A JPH03147666 A JP H03147666A
- Authority
- JP
- Japan
- Prior art keywords
- photosensitive paper
- paper
- taking
- photosensitive
- rewinding
- 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
- 238000004804 winding Methods 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 241001272720 Medialuna californiensis Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003094 microcapsule Substances 0.000 description 2
- 238000004380 ashing Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000012985 polymerization agent Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Photographic Developing Apparatuses (AREA)
- Advancing Webs (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
Description
【発明の詳細な説明】
[発明の目的]
(産業上の利用分野)
本発明は、感光紙を露光した後、該感光紙と両像形成紙
とを重ね合わせて加圧することにより画像形成紙に画像
を形成する両像形成装置に係わり、特に画像形成後に感
光紙の未使用部分を巻き戻すようにした画像形成装置に
関する。Detailed Description of the Invention [Objective of the Invention] (Industrial Field of Application) The present invention provides an image-forming paper by exposing a photosensitive paper and then overlapping the photosensitive paper and both image-forming papers and applying pressure. The present invention relates to both image forming apparatuses that form images, and particularly to image forming apparatuses that rewind unused portions of photosensitive paper after image formation.
(従来の技術)
画像形成装置においては、巻芯にロール状に巻回された
感光紙を、露光部、加圧部及び分離部を順に通して巻取
軸に掛け渡すように設け、その感光紙を露光部にて露光
し、加圧部にて該感光紙とシート状の画像形成紙とを重
ね合わせた状態で加圧することにより画像形成紙に感光
紙の画像を形成した後、分離部にて画像形成紙を感光紙
から分離させると共に、感光紙の使用済み部分を巻取軸
に巻き取るようにしたものが知られている。(Prior art) In an image forming apparatus, a roll of photosensitive paper is wound around a core, passed through an exposure section, a pressure section, and a separation section in order, and passed around a take-up shaft. The paper is exposed to light in the exposure section, and an image of the photosensitive paper is formed on the image forming paper by pressing the photosensitive paper and the sheet-like image forming paper in a superimposed state in the pressing section, and then the separating section It is known that the image-forming paper is separated from the photosensitive paper at a step, and the used portion of the photosensitive paper is wound up on a winding shaft.
この種の装置においては、上記感光紙にあって、感光済
み領域の後端部と次に露光される領域の先端部との間は
、画像形成に寄与せず未使用状態のまま送られて巻取軸
に巻き取られるようになっていたため、感光紙の有効利
用率が低いという問題点があった。In this type of device, the portion of the photosensitive paper between the trailing edge of the exposed area and the leading edge of the next exposed area does not contribute to image formation and is fed in an unused state. Since the photosensitive paper was wound onto a take-up shaft, there was a problem in that the effective utilization rate of the photosensitive paper was low.
そこで、これに対処するため、山像形成動作毎に、画像
形成紙を感光紙から分離した後、感光紙の露光部を通過
した未使用部分を巻芯側に巻き戻すようにすることによ
り、画像形成に寄Lj、 Lない未使用部分を極力削減
することが考えられている。Therefore, in order to deal with this, after each image forming operation, the image forming paper is separated from the photosensitive paper, the unused portion of the photosensitive paper that has passed through the exposed part is rewound to the core side. It has been considered to reduce as much as possible the unused portions that are not used for image formation.
(発明が解決しようとする課題)
ところで、感光紙の巻き戻しを行わずに巻取軸側へ一ノ
j向のみ巻き取るようにしたものの場合には、搬送路に
例えばフォトセンサを設けることにより感光紙が空とな
ったことを容易に検出することができる。(Problem to be Solved by the Invention) By the way, in the case of a device in which the photosensitive paper is wound only in one nozzle direction toward the winding shaft without being rewound, for example, by providing a photosensor in the conveying path, It is possible to easily detect when the photosensitive paper is empty.
しかしながら、上記したように画像形成毎に感光紙の巻
き戻し動作を行うようにしたものでは、上記フォトセン
サでは感光紙が空となったことを検出することができな
いことがある。即ち、感光紙の残りが少なくなり、例え
ば巻芯に対する巻四量が一昼き以下となった状態で上記
巻き灰し動作が行われると、巻芯が空間すした状態とな
って感光紙を巻き戻すことができなくなるが、感光紙は
少しではあるが残っているため、フォトセンサでは感光
紙が空であるという検知はされず、エラーとして表示さ
れていた。このため、このような場合には、使m者が感
光紙の残り量を逐−見て感光紙が空となったことを確認
し、その感光紙を巻取軸に強制的に巻き取る操作が必要
であり、その操作が面倒なものであった。However, in the case where the photosensitive paper is rewound every time an image is formed as described above, the photosensor may not be able to detect that the photosensitive paper is empty. In other words, if the above-mentioned ashing operation is performed when the amount of photosensitive paper remaining is low, for example, when the number of rolls on the core is less than one day, the core will be left in a space and the photosensitive paper will be Although it becomes impossible to rewind, there is still a small amount of photosensitive paper left, so the photosensor does not detect that the photosensitive paper is empty and displays it as an error. Therefore, in such a case, the messenger must check the remaining amount of photosensitive paper one by one, confirm that the photosensitive paper is empty, and forcefully wind the photosensitive paper onto the winding shaft. was required, and its operation was troublesome.
本発明は上記事情に鑑みてなされたものであり、その目
的は、感光紙の露光部を通過した未使用部分を巻芯側に
巻き戻して感光紙の有効利用を図るようにしたものにお
いて、感光紙の残り量がなくなった場合にこれを検出し
て、感光紙を巻取軸に目動的に昼き取ることができる画
像形成装置を堤供するにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to rewind the unused portion of the photosensitive paper that has passed through the exposed portion to the core side, thereby making effective use of the photosensitive paper. To provide an image forming apparatus capable of detecting when there is no remaining amount of photosensitive paper and visually removing the photosensitive paper around a winding shaft.
[発明の構成]
(課題を解決するための手段)
本発明は上記の目的を達成するために、画像形成紙を感
光紙から分離させた後に感光紙の露光部を通過した未使
用部分を巻芯側へ昼き戻すようにしたものにおいて、前
記感光紙の巻き戻し量を検出する検出手段を設け、この
検出手段の検出値が設定時間内に規定巻き戻し量に到達
しないときに感光紙を巻取軸に巻き取るようにしたとこ
ろに特徴をHする。[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention involves separating the image forming paper from the photosensitive paper and then rolling up the unused portion of the photosensitive paper that has passed through the exposed area. In an apparatus that is designed to rewind the photosensitive paper toward the core side, a detection means is provided for detecting the amount of rewinding of the photosensitive paper, and when the detected value of the detection means does not reach the specified rewinding amount within a set time, the photosensitive paper is The feature is H in that it is wound around the winding shaft.
(作用)
感光紙の巻き戻し動作時において、感光紙の残り量が少
なくなって巻芯が空間すするような場合には、感光紙の
巻き戻し量を検出する検出手段の検出値は設定時間内に
規定巻き戻し量に到達しなくなる。このような場合には
、感光紙が空であると判断し、感光紙の残り分を巻取軸
に目動的に巻き取る。(Function) During the rewinding operation of the photosensitive paper, if the amount of remaining photosensitive paper is small and the core is skimming the space, the detection value of the detection means that detects the amount of rewinding of the photosensitive paper will increase over the set time. The specified rewind amount cannot be reached within a certain period of time. In such a case, it is determined that the photosensitive paper is empty, and the remaining photosensitive paper is manually wound around the winding shaft.
(実施例)
以下、本発明の一実施例につき図−を多点して説明する
。(Example) Hereinafter, an example of the present invention will be described with reference to several figures.
まず装置の全体的構成を示した第1図において、装置本
体1の上面には、図示しない原稿か載置されるガラス台
2及びこのガラス台2を覆うカバー3が図中左右方向へ
移動可能に設けられている。First, in FIG. 1 showing the overall configuration of the apparatus, on the top surface of the apparatus main body 1, there is a glass stand 2 on which a document (not shown) is placed, and a cover 3 that covers this glass stand 2, which is movable in the left and right directions in the figure. It is set in.
装置本体1内の中央部上部には収納部4が設けられ、こ
の収納部4内に未使用の感光紙5が収納されている。感
光紙5は、片側の感光面5aに、感光することにより硬
化する感光性樹脂、染料前駆体、ffi合開合剤始剤内
蔵した無数のマイクロカプセルを有して成るもので、そ
の感光m5aを外側にして巻芯6にロール状に巻回され
ており、その巻芯6が巻き戻し手段たる給紙軸7に着脱
可能に装着されている。そして、感光紙5は収納部4か
ら導出されて、夫々対をなす送りローラ8,9を介して
露光部10に通された後、対をなすピンチローラ11及
びダンサローラ12を介して対をなす加圧ローラ13a
を有する加圧部13を通され、さらにガイドローラ14
、分離部たる分離ローラ15、及びガイドローラ16.
17を通して巻取軸18に掛け渡されており、使用済み
(感光済み)の部分が巻取軸18に順次巻き取られるよ
うになっている。この巻取軸18は巻取時に図示しない
モータにより矢印入方向へ回転され、また、上記給紙軸
7は後述する感光紙5の巻き戻し時に図示しないモータ
により矢印B/j向へ同転されるようになっている。A storage section 4 is provided at the upper center of the apparatus main body 1, and unused photosensitive paper 5 is stored within this storage section 4. The photosensitive paper 5 has numerous microcapsules on one side of the photosensitive surface 5a containing a photosensitive resin that hardens upon exposure to light, a dye precursor, and an initiator for an FFI polymerization agent. The sheet is wound in a roll shape around a core 6 with the outer side facing outward, and the core 6 is removably attached to a paper feed shaft 7 serving as an unwinding means. The photosensitive paper 5 is taken out from the storage section 4, passed through the exposure section 10 via a pair of feed rollers 8 and 9, and then passed through a pair of pinch rollers 11 and a dancer roller 12. Pressure roller 13a
is passed through the pressure unit 13 having a
, a separation roller 15 serving as a separation section, and a guide roller 16.
17 and is stretched around a winding shaft 18 so that used (exposed) portions are sequentially wound around the winding shaft 18. This winding shaft 18 is rotated in the direction of the arrow by a motor (not shown) during winding, and the paper feed shaft 7 is simultaneously rotated in the direction of the arrow B/j by a motor (not shown) when the photosensitive paper 5 is rewound, which will be described later. It has become so.
装置本体]内の上記収納部4の右り部には光照射室1つ
が設けられており、この光照射室19西に、上記ガラス
台2を通して原稿に光を照射する例えばハロゲンランプ
から成るランプ20及び反射m 21が配設されている
。原稿で反1・1された光は、−点鎖線の矢印で示すよ
うに光照射室1つの下方に設けられたフィルタ22及び
レンズ23を通り、反射vt24,25を介して上記露
光部10に向けて照射され、その光が露光部10に位置
された感光紙5に照射されることにより感光紙5を露光
するようになっている。A light irradiation chamber is provided on the right side of the storage section 4 in the main body of the apparatus, and a lamp made of, for example, a halogen lamp is installed on the west side of the light irradiation chamber 19 to irradiate light onto the document through the glass table 2. 20 and a reflection m 21 are arranged. The light reflected by the original passes through a filter 22 and a lens 23 provided below one of the light irradiation chambers, as shown by the arrow of the dashed dotted line, and reaches the exposure section 10 through reflections VT24 and VT25. The photosensitive paper 5 positioned in the exposure section 10 is exposed to light by being irradiated with the light.
また、装置本体1内の上記加圧部13の下方には給紙カ
セット26が設けられており、この給紙カセット26に
画像形成紙たる顕色紙27が収容されている。顕色紙2
7は矩形シート状をなし、画像形成面27aに上記感光
紙5のマイクロカプセルの内包物と反応する顕色剤が塗
−市されている。Further, a paper feed cassette 26 is provided below the pressure section 13 in the apparatus main body 1, and a color developer paper 27, which is image forming paper, is accommodated in this paper feed cassette 26. Developing paper 2
7 is in the form of a rectangular sheet, and a color developer that reacts with the inclusions of the microcapsules of the photosensitive paper 5 is coated on the image forming surface 27a.
顕色紙27は半月ローラ28により給紙カセット26か
ら送り出された後、対をなす送りローラ29により上方
に送られ、露光後の感光紙5と重ね合わされて加圧部1
3に供給される。加圧部13に供給された顕色紙27は
、感光紙5と重ね合わされた状態で加圧ローラ13aに
より加圧され、分離ローラ15において感光紙5から分
離されて加熱装置30に送られた後、トレイ3]に送り
出される。上記加圧部]3の加圧ローラ13aは、顕色
紙27が感光紙5と重ね合わされた状態で通る特にそれ
らを加圧する状態となり、それ以外は非加圧状態となる
。The color developer paper 27 is sent out from the paper feed cassette 26 by a half-moon roller 28, then sent upward by a pair of feed rollers 29, and is overlapped with the exposed photosensitive paper 5, and then transferred to the pressure section 1.
3. The color developer paper 27 supplied to the pressure unit 13 is pressed by the pressure roller 13a while being overlapped with the photosensitive paper 5, separated from the photosensitive paper 5 by the separation roller 15, and sent to the heating device 30. , tray 3]. The pressure roller 13a of the above-mentioned pressure section 3 is in a state in which it particularly presses the developing paper 27 as it passes over the photosensitive paper 5, and is in a non-pressure state otherwise.
一方、上記感光紙5の収納部4から露光部10までの搬
送路のうちの露光部10の近傍に位置された一方の送り
ローラ9には、該送りローラ9の回転量に応じて感光紙
5の巻き戻し量を検出する検出手段たるエンコーダ32
を設けている。このエンコーダ32は、送りローラ9の
回転に旦づき発生するパルス数をカウントし、そのパル
ス数が所定のパルス数に達することにより感光紙5の巻
き戻し量を検出する。On the other hand, one of the feed rollers 9 located near the exposure section 10 of the transport path from the storage section 4 to the exposure section 10 for the photosensitive paper 5 carries the photosensitive paper according to the amount of rotation of the feed roller 9. An encoder 32 serving as a detection means for detecting the amount of rewinding in step 5
has been established. The encoder 32 counts the number of pulses generated each time the feed roller 9 rotates, and detects the amount of rewinding of the photosensitive paper 5 when the number of pulses reaches a predetermined number.
また、上記搬送路の上方の送りローラ8の近傍には感光
紙5のを無を検出する例えばフォトセンサから成る感光
紙検出センサ33を設けており、この感光紙検出センサ
33は、感光紙5がなくなってその終端が通過した時に
これを検出して検出信号を出力する。Further, a photosensitive paper detection sensor 33 consisting of, for example, a photosensor is provided near the feed roller 8 above the conveyance path to detect the absence of the photosensitive paper 5. When the terminal is gone and the terminal has passed, this is detected and a detection signal is output.
そして、本装置の後述する画像形成動作は図示しないマ
イクロコンピュータにより制御されるようになっている
。The image forming operation of this apparatus, which will be described later, is controlled by a microcomputer (not shown).
次に上記構成の作用について、第2図に示す機能説明用
のフローチャートも用いて説明する。Next, the operation of the above configuration will be explained using a flowchart for functional explanation shown in FIG.
画像形成動作を開始するには、まず、ガラス台2上に原
稿を伏せて置き、カバー3を彼せた状態で図示しないス
タートスイッチを燥作する。すると、原稿を載せたガラ
ス台2がカバー3と一体に一旦第1図中右方向へ移動さ
れてガラス台2の7.。To start the image forming operation, first, place the original face down on the glass stand 2, turn the cover 3 aside, and press the start switch (not shown). Then, the glass table 2 on which the original is placed is moved together with the cover 3 to the right in FIG. .
端がランプ20と対応する位置で停止トされ、この後、
ランプ20が点灯された状態でガラス台2が左h°向へ
移動され、これに伴い原稿に光が照射され、。ガラス台
2の左方向への移動の開始と共に感光紙5の巻取軸18
側への送りも開始される。The end is stopped at a position corresponding to the ramp 20, and after this,
With the lamp 20 turned on, the glass stand 2 is moved to the left h°, and the document is irradiated with light accordingly. As soon as the glass stand 2 starts moving to the left, the winding shaft 18 of the photosensitive paper 5
Sending to the side also begins.
コノとき、ランプ20から照射され原稿で反対された光
が露光部10において感光紙5の感光面58に照射され
ることにより露光が行われる。尚、ランプ20はガラス
台2が左方向へ所定量移動されることに伴い消灯される
。At this time, light emitted from the lamp 20 and opposed by the document is irradiated onto the photosensitive surface 58 of the photosensitive paper 5 in the exposure section 10, thereby performing exposure. Note that the lamp 20 is turned off as the glass stand 2 is moved leftward by a predetermined amount.
露光された感光紙5は順次加圧部13側へ送られ、また
、これと共に半月ローラ28により給紙カセット26か
ら送り出された顕色紙27が送りローラ29により加圧
部13側へ送られ、顕色紙27が感光紙5に重ね合わさ
れた状態で加圧ローラ13aにより加圧される。これに
より、感光紙5に露光された画像が顕色紙27に顕在化
されてカラー画像が形成される。顕色紙27が加圧ロー
ラ13aを通過すると、加圧ローラ13aは非加圧状態
に戻される。そして、分離ローラ15において顕色紙2
7が感光紙5から分離され、分離された顕色紙27は加
熱装置30に送られ、加熱によって画像の定着が行われ
た後、トレイ31に送り出され、一方、感光紙5の使用
済みの部分は巻取軸18に順次巻き取られ、顕色紙27
が分離された時点でその巻取軸18による在き取りが停
止される。The exposed photosensitive paper 5 is sequentially sent to the pressure unit 13 side, and along with this, the developer paper 27 sent out from the paper feed cassette 26 by the half-moon roller 28 is sent to the pressure unit 13 side by the feed roller 29. The developer paper 27 is superimposed on the photosensitive paper 5 and is pressed by the pressure roller 13a. As a result, the image exposed on the photosensitive paper 5 is made visible on the color developing paper 27 to form a color image. When the developer paper 27 passes the pressure roller 13a, the pressure roller 13a is returned to the non-pressure state. Then, the color developing paper 2 is transferred to the separation roller 15.
7 is separated from the photosensitive paper 5, and the separated developer paper 27 is sent to a heating device 30, where the image is fixed by heating, and then sent to a tray 31. Meanwhile, the used portion of the photosensitive paper 5 are sequentially wound up on the winding shaft 18, and the developer paper 27
When the winding shaft 18 is separated, the winding shaft 18 stops collecting the stock.
ここて、上記顕色紙27の感光紙5からの分離が完了し
た叶には、感光紙5の露光された領域の後端部は分離ロ
ーラ15を少し越えた点、即ちC点まで送られており、
感光紙5の露光された領域の後端部であるそのC点を露
光部10のD点まで戻すために、給紙軸7を矢印B方向
へ同転させて感光紙5の在き戻しを行う。このとき、感
光紙5の巻き戻し量は送りローラ9に設けられたエンコ
ーダ32により検出され、その検出値が規定巻き戻し量
、即ち感光紙5の上記C点からD点までの長さに達する
と、巻き戻し動作を停止する。これにより、感光紙5の
露光された領域の後端部であるそのC点が露光部10の
D点まで戻される。また、その昼き戻し動作に便する時
間は略一定である。従って、エンコーダ32による検出
値が予め設定された設定目間1ノツに上記規定巻き反し
量に達した時には、感光紙5が巻芯6に残っていると判
断し、次の画像形成動作が行われるまで待機する。At this point, when the separation of the developer paper 27 from the photosensitive paper 5 is completed, the rear end of the exposed area of the photosensitive paper 5 is sent to a point slightly beyond the separation roller 15, that is, point C. Ori,
In order to return point C, which is the rear end of the exposed area of the photosensitive paper 5, to point D of the exposure section 10, the paper feed shaft 7 is simultaneously rotated in the direction of arrow B to return the photosensitive paper 5 to its original position. conduct. At this time, the amount of rewinding of the photosensitive paper 5 is detected by the encoder 32 provided on the feed roller 9, and the detected value reaches the specified rewinding amount, that is, the length of the photosensitive paper 5 from point C to point D. Then, the rewinding operation is stopped. As a result, the point C, which is the rear end of the exposed area of the photosensitive paper 5, is returned to the point D of the exposure section 10. Further, the time required for the daytime return operation is approximately constant. Therefore, when the value detected by the encoder 32 reaches the specified amount of unwinding at a preset interval of 1 knot, it is determined that the photosensitive paper 5 remains on the core 6, and the next image forming operation is performed. Wait until it appears.
ところでこの場合、感光紙5の残りが少なくなって、例
えば巻芯6に対する巻回量が−巻き以下となった状態で
上記巻き戻し動作が行われると、巻芯6が感光紙5に対
して空間すした状態となって感光紙5を巻き戻すことが
できなくなる。このようになると、送りローラ9が回転
しなくなるから、エンコーダ32による検出値は設定時
間内に上記規定巻き戻し量に到達しなくなる。従って、
このような場合には、感光紙5が空となったと’I’1
1断し、巻取軸18を回転させて感光紙5を巻取軸18
に所定量巻き取る巻き取り動作を行う。このときの巻き
取り量は、例えば感光紙5の巻芯6に対する−巻き分の
長さと、巻芯6から感光紙検出センサ33までの長さと
を合計したユとし、この巻き取り量も上記エンコーダ3
2により検出する。By the way, in this case, if the above-mentioned rewinding operation is performed when the amount of remaining photosensitive paper 5 is reduced and the amount of winding around the core 6 is less than -, for example, the core 6 will not be able to move around the photosensitive paper 5. The space becomes stuck and the photosensitive paper 5 cannot be rewound. In this case, since the feed roller 9 stops rotating, the detected value by the encoder 32 does not reach the specified rewinding amount within the set time. Therefore,
In such a case, 'I'1 indicates that the photosensitive paper 5 is empty.
1 cut, rotate the winding shaft 18, and roll the photosensitive paper 5 onto the winding shaft 18.
A winding operation is performed to wind up a predetermined amount. The amount of winding at this time is, for example, the sum of the length of the negative winding of the photosensitive paper 5 on the core 6 and the length from the core 6 to the photosensitive paper detection sensor 33, and this amount of winding is also determined by the encoder. 3
Detected by 2.
そして、この巻き取り動作により感光紙5の終端が感光
紙検出センサ33を通過すると、感光紙検出センサ33
によりこれが検出され、この検出に基づき図示しない操
作パネルにエンプティの表示が行われ、この後、巻取軸
18が所定時間回転されて残りの感光紙5は巻取軸18
に全て巻き取られる。従って、感光紙5の巻き戻しを行
って感光紙5の有効利用を図りながらも、感光紙5が空
となったことを検出して、使用者にこれを知らせること
ができると共に、感光紙5は巻取軸18に自動的に巷き
取られるから、感光紙5の交換作業も容易に行うことが
できる。When the end of the photosensitive paper 5 passes the photosensitive paper detection sensor 33 due to this winding operation, the photosensitive paper detection sensor 33
This is detected, and based on this detection, an empty message is displayed on the operation panel (not shown).After this, the take-up shaft 18 is rotated for a predetermined period of time, and the remaining photosensitive paper 5 is transferred to the take-up shaft 18.
It is all rolled up. Therefore, while rewinding the photosensitive paper 5 to make effective use of the photosensitive paper 5, it is possible to detect when the photosensitive paper 5 is empty and notify the user of this. Since the photosensitive paper 5 is automatically taken off by the take-up shaft 18, the photosensitive paper 5 can be easily replaced.
尚、上記巻き戻し動作晴に、例えばマイクロコンピュー
タの暴走等による誤動作により設定時間内に巻き戻しが
完了しないことがあった場合、巻き取り動作後に感光紙
検出センサ33により感光紙5の有無を検出して、感光
紙5が残っている場合にはその後の巻き取りは行わない
。If the rewinding operation is not completed within the set time due to a malfunction such as a runaway of the microcomputer, the presence or absence of the photosensitive paper 5 is detected by the photosensitive paper detection sensor 33 after the rewinding operation. If the photosensitive paper 5 remains, no further winding is performed.
[発明の効果]
以上の記述にて明らかなように、本発明によれば、感光
紙の露光部を通過した未使用部分を巻芯側に巻き戻して
感光紙の有効利用を図るようにしながらも、感光紙の残
り量がなくなった場合にこれを検出して、感光紙を巻取
軸に自動的に巻き取ることができ、ひいては感光紙の交
換を容易になし得るという優れた効果を奏する。[Effects of the Invention] As is clear from the above description, according to the present invention, the unused portion of the photosensitive paper that has passed through the exposed portion is rewound to the core side, thereby making effective use of the photosensitive paper. Also, when there is no remaining amount of photosensitive paper, it can be detected and the photosensitive paper can be automatically wound onto the winding shaft, which has the excellent effect of making it easy to replace the photosensitive paper. .
図面は本発明の一実施例を示し、第1図は装置全体の概
略的縦断面図、第2図は機能説明用のフローチャートで
ある。
図面中、5は感光紙、6は巻芯、7は給紙軸(巻き戻し
手段)、9は送りローラ、10は露光部、13は加圧部
、15は分離ローラ(分離部)、18は巻取軸、20は
ランプ、27は顕り紙(画像形成紙)、30は加熱装置
、32はエンコーダ(検出手段)を示す。The drawings show one embodiment of the present invention, and FIG. 1 is a schematic vertical sectional view of the entire device, and FIG. 2 is a flowchart for explaining functions. In the drawing, 5 is photosensitive paper, 6 is a winding core, 7 is a paper feed shaft (rewinding means), 9 is a feed roller, 10 is an exposure section, 13 is a pressure section, 15 is a separation roller (separation section), 18 20 is a winding shaft, 20 is a lamp, 27 is a display paper (image forming paper), 30 is a heating device, and 32 is an encoder (detection means).
Claims (1)
圧部及び分離部を順に通して巻取軸に掛け渡すように設
け、その感光紙を前記露光部にて露光し、前記加圧部に
て該感光紙とシート状の画像形成紙とを重ね合わせた状
態で加圧することにより両像形成紙に感光紙の画像を形
成した後、前記分離部にて画像形成紙を感光紙から分離
させると共に、感光紙の使用済み部分を前記巻取軸に巻
き取るようにした画像形成装置において、前記画像形成
紙を感光紙から分離させた後に感光紙の前記露光部を通
過した未使用部分を前記巻芯側へ巻き戻す巻き戻し手段
と、前記感光紙の巻き戻し量を検出する検出手段とを設
け、この検出手段の検出値が設定時間内に規定巻き戻し
量に到達しないときに前記感光紙を前記巻取軸に巻き取
るようにしたことを特徴とする画像形成装置。1. A photosensitive paper wound in a roll around a core is provided so as to pass through an exposure section, a pressure section, and a separation section in order and then hung around a winding shaft, and the photosensitive paper is exposed in the exposure section. After forming an image on the photosensitive paper on both image forming papers by applying pressure to the photosensitive paper and the sheet-like image forming paper in the overlapping state in the pressing section, the image forming paper is removed in the separating section. In the image forming apparatus, the image forming paper is separated from the photosensitive paper and the used portion of the photosensitive paper is wound up on the take-up shaft. A rewinding means for rewinding the unused portion of the photosensitive paper to the core side, and a detection means for detecting the amount of rewinding of the photosensitive paper, and the detection value of the detection means reaches a specified rewinding amount within a set time. An image forming apparatus characterized in that the photosensitive paper is wound up on the winding shaft when the photosensitive paper is not being used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28531289A JPH03147666A (en) | 1989-10-31 | 1989-10-31 | Image forming device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28531289A JPH03147666A (en) | 1989-10-31 | 1989-10-31 | Image forming device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03147666A true JPH03147666A (en) | 1991-06-24 |
Family
ID=17689901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28531289A Pending JPH03147666A (en) | 1989-10-31 | 1989-10-31 | Image forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03147666A (en) |
-
1989
- 1989-10-31 JP JP28531289A patent/JPH03147666A/en active Pending
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