JP2022047641A5

JP2022047641A5 -

Info

Publication number: JP2022047641A5
Application number: JP2020153543A
Authority: JP
Filing date: 2020-09-14
Publication date: 2023-10-26

Description

本発明の一態様は、台紙に複数のラベルが貼りつけられた記録材を搬送する搬送手段と、前記搬送手段に搬送される前記記録材を検出する検出手段であって、前記台紙に付してあるマークを検出する反射型センサと、前記記録材を透過する光量を検出する透過型センサと、を備える検出手段と、前記搬送手段に搬送される前記記録材に対し、画像形成位置で前記ラベルに画像を形成する画像形成手段と、前記搬送手段、前記検出手段および前記画像形成手段を制御する制御手段と、を備え、前記制御手段は、前記ラベルに画像を形成する指令を受けたあとに、前記搬送手段によって搬送されて前記画像形成位置に到達した最初のラベルに対して画像形成を開始する位置を、前記透過型センサの検出結果に基づいて決定し、前記画像形成位置に到達した前記最初のラベル以降のラベルに対して画像形成を開始する位置を、前記反射型センサの検出結果に基づいて決定する、ことを特徴とする画像形成装置である。 One aspect of the present invention is a conveyance means for conveying a recording material having a plurality of labels attached to a mount , and a detection means for detecting the recording material conveyed to the conveyance means, the detection means for detecting the recording material affixed to the mount. a detection means comprising a reflective sensor that detects a mark marked on the recording material; and a transmission sensor that detects the amount of light transmitted through the recording material; an image forming means for forming an image on the label; and a control means for controlling the conveyance means, the detection means, and the image forming means, the control means receiving a command to form an image on the label. After that, a position at which image formation is to be started for the first label transported by the transport means to reach the image forming position is determined based on the detection result of the transmissive sensor , and the label reaches the image forming position. The image forming apparatus is characterized in that the image forming apparatus determines a position at which image formation is to be started for labels subsequent to the first label that has been applied , based on a detection result of the reflective sensor .

搬送ベルト２０ＢのロールシートＭを搬送する搬送面と対向する位置には、画像形成部３０が設けられている。また、画像形成部３０よりもロールシートＭの搬送方向上流側には、第一の検知手段としての、反射型のＴＯＦセンサである反射型センサ７０Ａ１と、第二の検知手段としての、透過型のＴＯＦセンサである透過型センサ７０Ａ２とが配置されている。また、画像形成部３０は、インクを吐出可能な吐出部としての記録ヘッドユニット３０Ａとインクカートリッジ３０Ｂと、を有する。反射型センサ７０Ａ１と透過型センサ７０Ａ２とで検出手段を構成する。 An image forming section 30 is provided at a position facing the conveying surface of the conveying belt 20B that conveys the roll sheet M. Further, on the upstream side of the image forming section 30 in the conveyance direction of the roll sheet M, there is a reflective sensor 70A1 which is a reflective TOF sensor as a first detection means, and a transmission type sensor 70A1 as a second detection means. A transmission type sensor 70A2, which is a TOF sensor, is arranged. Further, the image forming section 30 includes a recording head unit 30A and an ink cartridge 30B as an ejection section capable of ejecting ink. The reflective sensor 70A1 and the transmissive sensor 70A2 constitute a detection means.

次に、上述した第１の実施形態に係る画像形成装置１において実行可能な印刷動作について、図３ないし７を用いて説明する。画像形成装置１は、上述のように、反射型センサ７０Ａ１だけでなく、透過型センサ７０Ａ２による検知結果（検出結果）に基づいて、画像形成開始位置（書き出し位置）を決定可能である。 Next, printing operations that can be executed in the image forming apparatus 1 according to the first embodiment described above will be explained using FIGS. 3 to 7. As described above, the image forming apparatus 1 can determine the image formation start position (writing start position) based on the detection result (detection result) not only by the reflective sensor 70A1 but also by the transmissive sensor 70A2.

反射型センサ７０Ａ１の信号は、図３に示すように、ロールシートＭの先端に付されたマーク４００の搬送方向後端エッジに反応してタイミング４０１で立ち下がる。その立ち下がりのタイミング４０１をトリガーに１ページ目（１つ目）の画像４０２の画像形成開始位置（最初のラベルに対して画像形成を開始する位置）を決定する。なお、ロールシートＭが無い状態の反射型センサ７０Ａ１の信号４０３はマーク４００を検出している時と同じ信号となるので立ち上がりエッジで１ページ目の画像４０２の画像形成開始位置を決定することは難しい。 As shown in FIG. 3, the signal from the reflective sensor 70A1 falls at timing 401 in response to the trailing edge in the transport direction of the mark 400 attached to the leading end of the roll sheet M. Using the falling timing 401 as a trigger, the image formation start position of the first page (first) image 402 (the position at which image formation is started for the first label) is determined. Note that the signal 403 of the reflective sensor 70A1 when there is no roll sheet M is the same signal as when detecting the mark 400, so it is not possible to determine the image formation start position of the image 402 on the first page using the rising edge. difficult.

また、２ページ目以降（最初のラベル以降のラベル）は当該ページ先頭のマーク４０４の後端エッジに反応する立ち下がりタイミング４０５から１ページ目と同様の所定の計算を経て当該ページの画像４０６の画像形成開始位置を決定する。このように、シート先端に付されたマーク４００が中心でカットされている場合は、狙い通り、先端余白長データ３ｍｍと同じ長さの１ページ目の先端余白Ｌ１を設けることができる。なお、画像の印字面とマークが付された面を同じ面に図示しているが、画像の印字面とは逆の面にマークが付された形態でも良い。ただし反射型センサ７０Ａ１はマークが付される面に実装される必要がある。 In addition, for the second and subsequent pages (labels after the first label), the image 406 of the page is calculated from the falling timing 405 in response to the trailing edge of the mark 404 at the top of the page through the same predetermined calculation as for the first page. Determine the image formation start position. In this way, when the mark 400 attached to the leading edge of the sheet is cut at the center, it is possible to provide the leading edge margin L1 of the first page having the same length as the leading edge margin length data of 3 mm as intended. Although the printed surface of the image and the marked surface are shown on the same surface, the marks may be marked on the opposite surface to the printed surface of the image. However, the reflective sensor 70A1 needs to be mounted on the surface to be marked.

透過型センサ７０Ａ２の信号は、ロールシートＭの先端に反応して立ち下がる。制御部５０は、その立ち下がりタイミング６００をトリガーに１ページ目の画像４０２の画像形成開始位置（最初のラベルに対して画像形成を開始する位置）を決定する。１ページ目の画像４０２の画像形成開始位置は、ホストコンピュータ６０から送信されてきた画像データに付加されるページの先端余白長データから算出される。つまり、透過型センサ７０Ａ２の立ち下がりタイミング６００から搬送方向上流に所定の距離としての先端余白長データ分３ｍｍ移動した位置が、１ページ目の画像４０２の画像形成開始位置となる。 The signal of the transmission type sensor 70A2 falls in response to the leading edge of the roll sheet M. The control unit 50 uses the fall timing 600 as a trigger to determine the image formation start position of the first page image 402 (the position at which image formation is started for the first label) . The image formation start position of the first page image 402 is calculated from the page leading edge margin length data added to the image data transmitted from the host computer 60. In other words, the image formation start position of the image 402 of the first page is a position moved upstream in the conveyance direction by 3 mm by the leading edge margin length data as a predetermined distance from the falling timing 600 of the transmission sensor 70A2.

２ページ目以降（２つ目以降、最初のラベル以降のラベル）の画像については、上述の比較例と同様、当該ページ先頭のマーク４０４の後端エッジに反応する反射型センサ７０Ａ１の立ち下がりタイミング４０５から所定の計算を経て当該ページの画像４０６の画像形成開始位置を決定する。図５に示す例のようにシート先端に付されたマーク４００が中心でカットされている場合、狙い通り、つまり前記先端余白長データ３ｍｍの長さの１ページ目の先端余白Ｌ１を設けることができる。 For images on the second and subsequent pages (second and subsequent pages, labels after the first label ), similarly to the above comparative example, the fall timing of the reflective sensor 70A1 that responds to the trailing edge of the mark 404 at the top of the page From step 405, the image formation start position of the image 406 of the page is determined through predetermined calculations. When the mark 400 attached to the leading edge of the sheet is cut at the center as in the example shown in FIG. can.

即ち、制御部５０は、第一のモードと第二のモードを実行可能（選択可能）である。第一のモードは、印刷ジョブの開始時に、ロールシートＭの先端が透過型センサ７０Ａ２よりも搬送方向上流側にある場合には、１つ目の画像の画像形成開始位置を透過型センサ７０Ａ２の検知結果（検出結果）に基づき決定するモードである。第二のモードは、印刷ジョブの開始時に、ロールシートＭの先端が透過型センサ７０Ａ２に検知される位置及び該位置よりも搬送方向下流側にある場合には、１つ目の画像形成開始位置を、反射型センサ７０Ａ１の検知結果（検出結果）に基づき決定するモードである。なお、印刷ジョブの開始時とは、印刷ジョブを受信後に印刷ジョブを開始する場合の他に、ジャム処理などにより中断した印刷ジョブを再開する場合も含む。 That is, the control unit 50 can execute (select) the first mode and the second mode. In the first mode, when the leading edge of the roll sheet M is upstream of the transmission direction sensor 70A2 at the start of a print job, the image formation start position of the first image is set to the transmission direction sensor 70A2. This mode is determined based on the detection result . In the second mode, when the leading edge of the roll sheet M is detected by the transmission sensor 70A2 at the start of a print job, and if the leading edge of the roll sheet M is located on the downstream side in the conveyance direction from this position, the first image formation start position is selected. This mode is determined based on the detection result (detection result) of the reflective sensor 70A1. Note that the time when a print job is started includes not only the case where a print job is started after receiving the print job, but also the case where a print job interrupted due to jam processing or the like is restarted.

Claims

a conveying means for conveying a recording material having a plurality of labels pasted on a mount;
Detection means for detecting the recording material conveyed by the conveyance means, including a reflection type sensor for detecting marks attached to the mount, and a transmission type sensor for detecting the amount of light transmitted through the recording material; a detection means comprising;
an image forming means for forming an image on the label at an image forming position with respect to the recording material conveyed by the conveying means;
a control means for controlling the conveying means, the detecting means, and the image forming means;
Equipped with
After receiving the command to form an image on the label, the control means determines a position at which image formation is to be started on the first label conveyed by the conveyance means and reaches the image forming position. determining a position at which image formation is to be started for labels subsequent to the first label that has reached the image forming position, based on the detection result of the reflective sensor;
An image forming apparatus characterized by:

The control means includes:
a first mode in which a position to start image formation on the first label is determined based on a detection result of the transmission sensor;
a second mode in which a position to start image formation on the first label is determined based on a detection result of the reflective sensor;
It is possible to select
The first mode is selected when starting conveyance of the recording material from a state where the transmission type sensor is not detecting the recording material, and the recording is started from a state where the transmission type sensor is detecting the recording material. The image forming apparatus according to claim 1, wherein the second mode is selected when starting conveyance of the material.