JPH07195769A - Thermal transfer color printer - Google Patents
Thermal transfer color printerInfo
- Publication number
- JPH07195769A JPH07195769A JP35149793A JP35149793A JPH07195769A JP H07195769 A JPH07195769 A JP H07195769A JP 35149793 A JP35149793 A JP 35149793A JP 35149793 A JP35149793 A JP 35149793A JP H07195769 A JPH07195769 A JP H07195769A
- Authority
- JP
- Japan
- Prior art keywords
- feed roller
- gear
- platen
- recording sheet
- recording
- 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.)
- Granted
Links
Landscapes
- Handling Of Sheets (AREA)
- Electronic Switches (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は熱転写カラープリンタに
関し、特に色ずれ防止手段を備えた熱転写カラープリン
タに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal transfer color printer, and more particularly to a thermal transfer color printer provided with a color shift preventing means.
【従来の技術】従来の熱転写カラープリンタは、例えば
特開昭６４−２４７７３号公報に示されるように、逆転
時の記録用紙の戻り位置を正確なものとして、各色剤の
重ね合わせ時の色ずれを防止することを目的として用い
られている。図２はその従来の熱転写カラープリンタの
側面図である。この従来の熱転写カラープリンタは、記
録用紙７に情報を記録するためのサーマルヘッド４と、
このサーマルヘッド４が押し当たり記録を行う際の下敷
きとなると共に用紙吸入時は自ら回転し、印字時は回転
せず、印字後は記録用紙７を上流へ戻すときに自ら回転
するプラテン３と、このプラテン３に対向して設けら
れ、記録用紙７に押圧を与えるピンチローラ５と、上記
プラテン３の下流に位置し、表面に金属の粒子を持ち、
記録用紙７の主送りとなるフィードローラ１と、このフ
ィードローラ１に対向して設けられ、記録用紙７に押圧
を与えるアイドルローラ２とから構成されている。次に
上記構成による熱転写カラープリンタの動作について説
明する。用紙吸入時、プラテン３とピンチローラ５によ
り記録用紙７の先端がフィードローラ１とアイドルロー
ラ２に噛み合う位置まで記録用紙７を送る。その後、サ
ーマルヘッド４が上へ上がり、インクフィルム６と記録
用紙７をプラテン３に押し当てて印字を行う。この時記
録用紙７は、フィードローラ１のみによって送られ、プ
ラテン３は記録用紙７の送り力を持たない。一色目の印
字終了後、サーマルヘッド４が下へ下がり、フィードロ
ーラ１により記録用紙７は一度上流へ戻される。この時
記録用紙７はフィードローラ１によって送られ、プラテ
ン３は回転するが記録用紙７に張力を与える程度の回転
力しか持たない。この動作を複数回繰り返し、色を重ね
合わせてカラー印字を行う。2. Description of the Related Art In a conventional thermal transfer color printer, as shown in, for example, Japanese Unexamined Patent Publication No. 64-24773, it is necessary to accurately set the return position of the recording paper at the time of reverse rotation so that the color misregistration occurs when the respective color materials are superposed. It is used for the purpose of preventing. FIG. 2 is a side view of the conventional thermal transfer color printer. This conventional thermal transfer color printer includes a thermal head 4 for recording information on a recording paper 7,
The thermal head 4 serves as an underlay for pressing and recording, and also rotates itself when inhaling the paper, does not rotate at the time of printing, and rotates itself when the recording paper 7 is returned upstream after printing, A pinch roller 5 that is provided to face the platen 3 and applies pressure to the recording paper 7, and is located downstream of the platen 3 and has metal particles on its surface.
The recording sheet 7 is mainly fed by a feed roller 1 and an idle roller 2 provided so as to face the feed roller 1 and pressing the recording sheet 7. Next, the operation of the thermal transfer color printer having the above configuration will be described. When the paper is sucked, the platen 3 and the pinch roller 5 feed the recording paper 7 to a position where the leading end of the recording paper 7 meshes with the feed roller 1 and the idle roller 2. After that, the thermal head 4 moves up and the ink film 6 and the recording paper 7 are pressed against the platen 3 for printing. At this time, the recording paper 7 is fed only by the feed roller 1, and the platen 3 does not have the feeding force of the recording paper 7. After the printing of the first color is completed, the thermal head 4 moves down, and the feed roller 1 returns the recording paper 7 once to the upstream. At this time, the recording paper 7 is fed by the feed roller 1, and the platen 3 rotates, but has only a rotational force to give tension to the recording paper 7. This operation is repeated a plurality of times so that the colors are superimposed and color printing is performed.
【０００２】[0002]
【発明が解決しようとする課題】この従来の熱転写カラ
ープリンタでは、記録用紙は正逆両方向ともフィードロ
ーラ１だけで送られるため、印字時は、サーマルヘッド
４がプラテン３を押している力による帯抵抗に勝つ程の
送り力を持たなければならない。従って、フィードロー
ラ１は金属の粒子を表面に有するローラを使用すること
が多い。しかしながら、金属の粒子により記録用紙面に
圧痕がつき、印字品質を下げる恐れがあり、更に、ロー
ラの金属の粒子間に紙粉がたまり目詰まりを起こして記
録用紙の送り力の低下を招き、色ずれが発生するという
問題点があった。また、フィードローラ１のみの送り力
に頼っているため、記録用紙７が常にフィードローラ１
にかかっていなければならず、印字可能範囲が狭くなる
という問題点があった。それ故、本発明は、このような
問題点を解決するもので、色ずれ防止手段を備え、記録
用紙のたるみ，各色の重ね合わせ時の色ずれを防止する
ことができる熱転写カラープリンタを提供することを目
的とする。In this conventional thermal transfer color printer, the recording paper is fed only by the feed roller 1 in both the forward and reverse directions. Therefore, during printing, the thermal head 4 presses the platen 3 with a band resistance. You must have enough power to win. Therefore, the feed roller 1 often uses a roller having metal particles on its surface. However, the particles of metal may cause an impression on the surface of the recording paper, which may lower the printing quality.Furthermore, paper particles may accumulate between the metal particles of the rollers to cause clogging, resulting in a decrease in the feeding force of the recording paper. There is a problem that color shift occurs. Further, since the feeding force of only the feed roller 1 is used, the recording paper 7 is always fed by the feed roller 1.
However, there is a problem that the printable range is narrowed. Therefore, the present invention solves such a problem, and provides a thermal transfer color printer which is provided with a color misregistration prevention unit and can prevent the slack of recording paper and the color misregistration at the time of superimposing each color. The purpose is to
【課題を解決するための手段】本発明の熱転写カラープ
リンタは上記目的を達成するために、記録用紙に情報を
記録するためのサーマルヘッドが押し当たって記録を行
う際の下敷きとなり、更に記録用紙の搬送方向に対して
上流から下流へ記録用紙を送る時には主送りとなると共
に下流から上流へ記録用紙を送る時には単に回転するの
みとなるプラテンと、このプラテンより記録用紙の搬送
方向に対して下流側に位置し、記録用紙を下流から上流
に送る時に主送りとなると共にプラテンより周速が速い
第１フィードローラと、プラテンより記録用紙の搬送方
向に対して上流側に位置し、記録用紙を記録開始位置ま
で送ることが可能な第２フィードローラと、この第２フ
ィードローラを記録用紙が上流から下流へ送られる時に
プラテンより遅く回転させ、下流から上流へ送られる時
に第１フィードローラより速く回転させる変速機構部と
を具備している。In order to achieve the above object, the thermal transfer color printer of the present invention serves as an underlay when a thermal head for recording information on a recording sheet is pressed against the recording sheet, and further, the recording sheet. The platen is a main feed when the recording sheet is fed from the upstream side to the downstream side with respect to the conveying direction, and is simply rotated when the recording sheet is fed from the downstream side to the downstream side with respect to the conveying direction of the recording sheet. The first feed roller, which is located on the side of the platen, serves as the main feed when the recording sheet is fed from the downstream side to the upstream side, and has a peripheral speed higher than that of the platen, and is located upstream of the platen in the conveying direction of the recording sheet, A second feed roller that can feed to the recording start position, and a second feed roller that is slower than the platen when the recording paper is fed from upstream to downstream. It is rolling, and a transmission mechanism for rotating faster than the first feed roller when sent from the downstream to the upstream.
【実施例】次に本発明について図面を参照して説明す
る。図１は本発明の一実施例を示す熱転写カラープリン
タの側面図であり、（ａ）は第１フィードローラを正転
させている時の側面図、（ｂ）は第１フィードローラを
逆転させている時の側面図である。本発明は図１におい
て、記録用紙１８に情報を記録するためのサーマルヘッ
ド６と、このサーマルヘッド６が押し当たって記録を行
う際の下敷きとなり、更に記録用紙の搬送方向に対して
上流から下流へ記録用紙を送る時には主送りとなると共
に下流から上流へ記録用紙を送る時には単に回転するの
みとなるプラテン５と、このプラテン５より記録用紙の
搬送方向に対して下流側に位置し、記録用紙１８を下流
から上流に送る時に主送りとなると共に上記プラテン５
より周速が速い第１フィードローラ１と、この第１フィ
ードローラ１に対向して設けられ、記録用紙１８に押圧
を与えるアイドルローラ３と、上記プラテンより記録用
紙の搬送方向に対して上流側に位置し、記録用紙１８を
記録開始位置まで送ることが可能な第２フィードローラ
２と、この第２フィードローラ２に対向して設けられ、
記録用紙１８に押圧を与えるアイドルローラ４と、上記
第２フィードローラ２を記録用紙１８が上流から下流へ
送られる時に上記プラテン５より遅く回転させ、下流か
ら上流へ送られる時に上記第１フィードローラ１より速
く回転させる変速機構部と、記録用紙を案内する用紙ガ
イド１３，１４，１５，１６とから構成されている。ま
た、上記変速機構部は、第２フィードローラ２に回転力
を伝達する歯車１２と、同様に第２フィードローラ２に
回転力を伝達し、且つ歯車１２よりピッチ円径の小さい
歯車１１と、記録用紙１８が搬送方向に対して上流から
下流へ送られる時、反時計方向（図１中のＡ方向）に回
転し、下流から上流へ送られる時、時計方向（図１中の
Ｂ方向）に回転する遊星アーム７と、この遊星アーム７
を回転させる為の太陽歯車９と、この太陽歯車９に噛み
合い且つ上記遊星アーム７の回転に連動して歯車１１に
噛み合う遊星歯車８と、太陽歯車９に噛み合い且つ遊星
アーム７の回転に連動して歯車１２に噛み合う遊星歯車
１０とから構成されている。次に、上記構成による本発
明の動作について説明する。記録用紙１８は、第２フィ
ードローラ２により印字位置まで送られる。この時、サ
ーマルヘッド６は下に下がっており、プラテン５に押し
付けられていない。そして記録用紙１８が記録開始位置
に到達した後、サーマルヘッド６は上へ上がり、記録用
紙１８とインクフィルム１７をプラテン５に押し付け
る。印字開始直後、記録用紙１８はプラテン５によって
送られて、第１フィードローラ１はプラテン５より周速
を速くすると共に、第２フィードローラ２は、プラテン
５より周速を遅くして記録用紙１８に張力を与え、記録
用紙がたるまないようにする。また、上記２つのローラ
の記録用紙１８の送る力は、プラテン５より弱くしてあ
る。第１色目の印字が終了すると、サーマルヘッド６が
下へ下がり、記録用紙１８とインクフィルム１７は記録
位置にて開放され、記録用紙１８は第１フィードローラ
１と第２フィードローラ２とで保持された後、記録用紙
１８は第２フィードローラ２側へ送られる。この時、太
陽歯車９は印字の時とは逆方向に回転する。The present invention will be described below with reference to the drawings. 1A and 1B are side views of a thermal transfer color printer showing an embodiment of the present invention. FIG. 1A is a side view when a first feed roller is normally rotated, and FIG. FIG. In FIG. 1, the present invention provides a thermal head 6 for recording information on a recording sheet 18 and an underlay when the thermal head 6 presses to perform recording, and further from the upstream side to the downstream side in the conveying direction of the recording sheet. When the recording sheet is fed to the recording sheet, the platen 5 serves as the main feed, and when the recording sheet is fed from the downstream side to the upstream side, the platen 5 is simply rotated, and the platen 5 is located downstream of the platen 5 in the conveying direction of the recording sheet. When 18 is sent from the downstream to the upstream, it becomes the main feed and the platen 5
A first feed roller 1 having a higher peripheral speed, an idle roller 3 provided to face the first feed roller 1 and pressing the recording paper 18, and an upstream side of the platen with respect to the conveyance direction of the recording paper. A second feed roller 2 which is located at the position where the recording paper 18 can be fed to the recording start position, and which is provided so as to face the second feed roller 2.
The idle roller 4 that applies pressure to the recording paper 18 and the second feed roller 2 rotate slower than the platen 5 when the recording paper 18 is fed from upstream to downstream, and the first feed roller 2 when it is fed from downstream to upstream. It is composed of a speed change mechanism that rotates faster than 1 and paper guides 13, 14, 15, 16 that guide the recording paper. Further, the transmission mechanism section includes a gear 12 that transmits a rotational force to the second feed roller 2, and a gear 11 that transmits a rotational force to the second feed roller 2 and has a smaller pitch circle diameter than the gear 12. When the recording paper 18 is sent from upstream to downstream with respect to the transport direction, it rotates counterclockwise (direction A in FIG. 1), and when sent from downstream to upstream, clockwise (direction B in FIG. 1). The planet arm 7 that rotates in the direction of
A sun gear 9 for rotating the sun gear 9, a planetary gear 8 meshing with the sun gear 9 and meshing with the rotation of the planet arm 7 and a gear 11 and a sun gear 9 meshing with the sun gear 9 and linked with the rotation of the planet arm 7. And a planetary gear 10 that meshes with the gear 12. Next, the operation of the present invention having the above configuration will be described. The recording paper 18 is sent to the print position by the second feed roller 2. At this time, the thermal head 6 is lowered and is not pressed against the platen 5. Then, after the recording paper 18 reaches the recording start position, the thermal head 6 moves up and presses the recording paper 18 and the ink film 17 against the platen 5. Immediately after the start of printing, the recording paper 18 is fed by the platen 5, and the first feed roller 1 makes the peripheral speed faster than the platen 5, and the second feed roller 2 makes the peripheral speed slower than the platen 5 and makes the recording paper 18 Apply tension to the so that the recording paper does not sag. Further, the feeding force of the recording paper 18 of the two rollers is set to be weaker than that of the platen 5. When the printing of the first color is completed, the thermal head 6 moves down, the recording paper 18 and the ink film 17 are released at the recording position, and the recording paper 18 is held by the first feed roller 1 and the second feed roller 2. After that, the recording paper 18 is sent to the second feed roller 2 side. At this time, the sun gear 9 rotates in the direction opposite to that at the time of printing.
【０００３】それに伴い遊星アーム７も逆回転し、遊星
歯車８が歯車１１と噛み合う。この動作により、第２フ
ィードローラ２は第１フィードローラ１より周速が速く
なり、記録用紙１８がたるまないように張力を与える。
また、第２フィードローラ２は第１フィードローラ１よ
り記録用紙１８を送る力が弱くなるように、押圧，ロー
ラの摩擦力を設定する。以上の動作を複数回繰り返し、
色を重ね合わせてカラー印字を行う。As a result, the planet arm 7 also rotates in the reverse direction, and the planet gear 8 meshes with the gear 11. By this operation, the peripheral speed of the second feed roller 2 becomes faster than that of the first feed roller 1, and tension is applied so that the recording paper 18 does not sag.
Further, the second feed roller 2 sets the pressing force and the frictional force of the roller so that the feeding force of the recording paper 18 is weaker than that of the first feed roller 1. Repeat the above operation multiple times,
Color printing is performed by overlapping colors.
【発明の効果】以上説明したように、本発明は、記録用
紙の搬送方向に対してプラテンの下流側に第１フィード
ローラを、上流側に第２フィードローラを設けると共
に、第２フィードローラの周速を用紙移動方向に応じて
変化させる変速機構部を有し、第２フィードローラを記
録用紙が上流から下流へ送られる時はプラテンより遅く
回転させ、下流から上流へ送られる時は第１フィードロ
ーラより速く回転させるようにしたので、記録用紙のた
るみを防止すると共に、各色の重ね合わせ時の色ずれを
防止することができる。As described above, according to the present invention, the first feed roller is provided on the downstream side of the platen and the second feed roller is provided on the upstream side of the conveying direction of the recording paper, and the second feed roller is It has a speed change mechanism that changes the peripheral speed according to the sheet moving direction, rotates the second feed roller slower than the platen when the recording sheet is fed from the upstream side to the downstream side, and rotates the first feed roller when the recording sheet is fed from the downstream side to the upstream side. Since the roller is rotated faster than the feed roller, it is possible to prevent the slack of the recording paper and prevent the color misregistration at the time of superimposing each color.
【図１】本発明の一実施例を示す熱転写カラープリンタ
の側面図であり、（ａ）は第１フィードローラを正転さ
せている時の側面図、（ｂ）は第１フィードローラを逆
転させている時の側面図である。FIG. 1 is a side view of a thermal transfer color printer showing an embodiment of the present invention, in which (a) is a side view when a first feed roller is normally rotated, and (b) is a reverse direction of the first feed roller. It is a side view at the time of making it.
【図２】従来の熱転写カラープリンタの側面図である。FIG. 2 is a side view of a conventional thermal transfer color printer.
１ 第１フィードローラ ２ 第２フィードローラ ５ プラテン ６ サーマルヘッド ７ 遊星アーム ８，１０ 遊星歯車 ９ 太陽歯車 １１，１２ 歯車 1 1st feed roller 2 2nd feed roller 5 Platen 6 Thermal head 7 Planetary arm 8,10 Planetary gear 9 Sun gear 11,12 Gear
Claims (3)
ルヘッドが押し当たって記録を行う際の下敷きとなり、
更に記録用紙の搬送方向に対して上流から下流へ記録用
紙を送る時には主送りとなると共に下流から上流へ記録
用紙を送る時には単に回転するのみとなるプラテンと、
このプラテンより記録用紙の搬送方向に対して下流側に
位置し、記録用紙を下流から上流に送る時に主送りとな
ると共に前記プラテンより周速が速い第１フィードロー
ラと、前記プラテンより記録用紙の搬送方向に対して上
流側に位置し、記録用紙を記録開始位置まで送ることが
可能な第２フィードローラと、この第２フィードローラ
を記録用紙が上流から下流へ送られる時に前記プラテン
より遅く回転させ、下流から上流へ送られる時に前記第
１フィードローラより速く回転させる変速機構部とを具
備したことを特徴とする熱転写カラープリンタ。1. A thermal recording head for recording information on a recording sheet, which serves as an underlay for recording.
Further, a platen which is a main feed when the recording sheet is fed from the upstream side to the downstream side in the conveying direction of the recording sheet and which is simply rotated when the recording sheet is fed from the downstream side to the upstream side,
A first feed roller which is located on the downstream side of the platen in the conveying direction of the recording sheet and serves as a main feed when the recording sheet is fed from the downstream side to the upstream side and has a peripheral speed higher than that of the platen; A second feed roller located upstream of the conveying direction and capable of feeding the recording sheet to the recording start position, and this second feed roller rotates slower than the platen when the recording sheet is fed from the upstream side to the downstream side. And a speed change mechanism for rotating the transfer roller from the downstream side to the upstream side faster than the first feed roller.
ーラに回転力を伝達する第１歯車と、前記第２フィード
ローラに回転力を伝達し、且つ第１歯車よりピッチ円径
の小さい第２歯車と、記録用紙の搬送方向に応じて回転
方向が可変する遊星アームと、この遊星アームを回転さ
せる為の太陽歯車と、この太陽歯車に噛み合い且つ前記
遊星アームの回転に連動して第２歯車に噛み合う遊星歯
車と、太陽歯車に噛み合い且つ遊星アームの回転に連動
して第１歯車に噛み合う遊星歯車とから構成されたこと
を特徴とする請求項１記載の熱転写カラープリンタ。2. The speed change mechanism section transmits a rotational force to the second feed roller, a first gear that transmits the rotational force to the second feed roller, and a first gear that has a smaller pitch circle diameter than the first gear. Two gears, a planetary arm whose rotation direction is variable according to the conveying direction of the recording sheet, a sun gear for rotating the planetary arm, a second gear that meshes with the sun gear and interlocks with the rotation of the planetary arm. 2. The thermal transfer color printer according to claim 1, wherein the thermal transfer color printer comprises a planetary gear that meshes with a gear and a planetary gear that meshes with a sun gear and meshes with a first gear in association with rotation of a planetary arm.
に対して上流から下流へ送られる時、前記第１歯車と第
１遊星歯車とが噛み合う方向に回転して第２フィードロ
ーラを前記プラテンより遅く回転させると共に、下流か
ら上流へ送られる時、前記第２歯車と第２遊星歯車とが
噛み合う方向に回転して第２フィードローラを第１フィ
ードローラより速く回転させることを特徴とする請求項
２記載の熱転写カラープリンタ。3. The planetary arm rotates in a direction in which the first gear and the first planetary gear mesh with each other when the recording sheet is fed from the upstream side to the downstream side with respect to the transport direction, and the second feed roller moves the platen to the platen. The second feed roller is rotated more slowly than the first feed roller by rotating in a direction in which the second gear and the second planetary gear are meshed with each other while being rotated more slowly. Item 2. A thermal transfer color printer according to item 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5351497A JP2809082B2 (en) | 1993-12-29 | 1993-12-29 | Thermal transfer color printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5351497A JP2809082B2 (en) | 1993-12-29 | 1993-12-29 | Thermal transfer color printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07195769A true JPH07195769A (en) | 1995-08-01 |
| JP2809082B2 JP2809082B2 (en) | 1998-10-08 |
Family
ID=18417701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5351497A Expired - Fee Related JP2809082B2 (en) | 1993-12-29 | 1993-12-29 | Thermal transfer color printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2809082B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058227C (en) * | 1994-12-26 | 2000-11-08 | 佳能株式会社 | Sheet convey apparatus and printer having same |
| US7731436B2 (en) | 2005-08-09 | 2010-06-08 | Samsung Electronics Co., Ltd. | Image forming apparatus with thermal printing head and printing method thereof |
| US8206046B2 (en) | 2007-08-15 | 2012-06-26 | Seiko Epson Corporation | Recording device with a second platen roller that rotates at a faster speed than a first platen roller |
| JP2014220549A (en) * | 2013-04-30 | 2014-11-20 | キヤノン株式会社 | Reader and image forming apparatus including the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62193861A (en) * | 1986-02-19 | 1987-08-26 | Fujitsu Ltd | Thermal transfer recorder |
| JPS62211173A (en) * | 1986-03-13 | 1987-09-17 | Matsushita Electric Ind Co Ltd | Image recorder |
-
1993
- 1993-12-29 JP JP5351497A patent/JP2809082B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62193861A (en) * | 1986-02-19 | 1987-08-26 | Fujitsu Ltd | Thermal transfer recorder |
| JPS62211173A (en) * | 1986-03-13 | 1987-09-17 | Matsushita Electric Ind Co Ltd | Image recorder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058227C (en) * | 1994-12-26 | 2000-11-08 | 佳能株式会社 | Sheet convey apparatus and printer having same |
| US7731436B2 (en) | 2005-08-09 | 2010-06-08 | Samsung Electronics Co., Ltd. | Image forming apparatus with thermal printing head and printing method thereof |
| US8206046B2 (en) | 2007-08-15 | 2012-06-26 | Seiko Epson Corporation | Recording device with a second platen roller that rotates at a faster speed than a first platen roller |
| JP2014220549A (en) * | 2013-04-30 | 2014-11-20 | キヤノン株式会社 | Reader and image forming apparatus including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2809082B2 (en) | 1998-10-08 |
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