JPH0367341U

JPH0367341U -

Info

Publication number: JPH0367341U
Application number: JP12819389U
Authority: JP
Priority date: 1989-10-31
Filing date: 1989-10-31
Publication date: 1991-07-01

Description

[Brief explanation of drawings]

第１図は本考案の用紙頭揃え機構の第１実施例
において用紙を搬送している状態を示した図、第
２図は本考案の用紙頭揃え機構の第２実施例にお
いて用紙を搬送している状態を示した図、第３図
は本考案の用紙頭揃え機構の第１実施例において
用紙を搬送した時の要部のタイミングチヤート、
第４図は本考案の用紙頭揃え機構において用紙を
搬送した時のプロテンローラに対する用紙の平行
度を示した図、第５図は従来例の一例として熱転
写型等のプリンタ装置において用紙を搬送してい
る状態を示した図、第６図は従来例の一例として
熱転写型等のプリンタ装置において用紙を搬送し
た時の要部のタイミングチヤート、第７図は従来
例の装置において用紙を搬送した時のプラテンロ
ーラに対する用紙の平行度を示した図である。１……給紙トレイ、２……用紙、４……第１の
ローラ（給紙ローラ）、６……モータ、８……第
２のローラ（プラテンローラ）、９……ピンチロ
ーラ、１１……モータ、１９……検出器、２０…
…ローラ。 FIG. 1 is a diagram showing a state in which paper is conveyed in a first embodiment of the paper head alignment mechanism of the present invention, and FIG. 2 is a diagram showing a state in which paper is transported in a second embodiment of the paper head alignment mechanism of the present invention. FIG. 3 is a timing chart of important parts when paper is conveyed in the first embodiment of the paper head alignment mechanism of the present invention.
Figure 4 is a diagram showing the parallelism of the paper to the proten roller when the paper is conveyed in the paper head alignment mechanism of the present invention, and Figure 5 is a diagram showing the parallelism of the paper to the proten roller as an example of a conventional example when the paper is conveyed in a printer device such as a thermal transfer type. Figure 6 is a timing chart of the main parts when paper is conveyed in a thermal transfer type printer as an example of a conventional example, and Figure 7 is a diagram showing the timing chart when paper is conveyed in a conventional printer. FIG. 3 is a diagram showing the parallelism of paper with respect to the platen roller of FIG. 1... Paper feed tray, 2... Paper, 4... First roller (paper feed roller), 6... Motor, 8... Second roller (platen roller), 9... Pinch roller, 11... ...Motor, 19...Detector, 20...
…roller.

Claims

[Scope of utility model registration request]

a first roller and a second roller rotationally driven by a drive source;
a pressing body that presses against the roller of the paper via the paper;
a detector located between the first roller and the second roller to detect a curved portion of the paper; The paper is conveyed by the rotational drive of the first roller between the pressure contact body and the paper to form a curved portion at the leading edge of the paper, and the curved portion of the paper that is formed is detected by the detector. A paper head alignment mechanism, characterized in that the paper head alignment mechanism is configured to transport the paper by aligning the leading edge of the paper parallel to the second roller by detecting the paper.