JPH0414237U

JPH0414237U -

Info

Publication number: JPH0414237U
Application number: JP5528590U
Authority: JP
Priority date: 1990-05-25
Filing date: 1990-05-25
Publication date: 1992-02-05
Anticipated expiration: 2005-05-25
Also published as: JP2501445Y2

Description

[Brief explanation of drawings]

第１図は本考案に係る紙送り機構を適用したプ
リンタの実施例を示す平面図、第２図は第１図の
概略左側面図、第３図は第１図の右側面図、第４
図ａは給紙トレイの挿入開始状態を示す要部の側
面図、第４図ｂは給紙トレイの挿入途中状態を示
す要部の側面図、第４図ｃは給紙トレイの装着状
態を示す要部の側面図、第５図ａは圧接ローラの
圧接状態を示す要部の側面図、第５図ｂは圧接ロ
ーラの離間状態を示す要部の側面図、第６図は従
来の紙送り機構を示す要部の側面図である。１……用紙、２……給紙トレイ、３……給紙ロ
ーラ、４……プリンタ、１０……キヤリツジ駆動
モータ、１７，１８……紙送りローラ、１９……
排紙ローラ、２０，２１，２２……圧接ローラ、
２４……揺動アーム、２６……給紙駆動モータ、
２９……当接バー、３５……カム部、３７……選
択ギア、３８……カム板、３９……駆動ギア、４
０……圧接側ギア、４１……離間側ギア、４２…
…回動板。 1 is a plan view showing an embodiment of a printer to which the paper feeding mechanism according to the present invention is applied; FIG. 2 is a schematic left side view of FIG. 1; FIG. 3 is a right side view of FIG. 1;
Figure 4a is a side view of the main part showing the state where the paper feed tray has started to be inserted, Figure 4b is a side view of the main part showing the state where the paper feed tray is being inserted, and Figure 4c is the side view of the main part showing the state where the paper feed tray is being inserted. FIG. 5a is a side view of the main part showing the pressure roller in the pressed state, FIG. 5b is a side view of the main part showing the pressure roller in the separated state, and FIG. 6 is the conventional paper. FIG. 3 is a side view of essential parts of the feeding mechanism. 1... Paper, 2... Paper feed tray, 3... Paper feed roller, 4... Printer, 10... Carriage drive motor, 17, 18... Paper feed roller, 19...
Paper ejection roller, 20, 21, 22... pressure roller,
24... Swing arm, 26... Paper feed drive motor,
29... Contact bar, 35... Cam portion, 37... Selection gear, 38... Cam plate, 39... Drive gear, 4
0... Pressing side gear, 41... Separating side gear, 42...
...Rotating plate.

Claims

[Scope of utility model registration request]

A paper feed tray for storing a plurality of stacked sheets of paper is removably disposed in the printer body, and the paper from the paper feed tray is taken out one by one from the top one into the printer body and placed at a predetermined printing position. In a paper feeding mechanism of a printer in which a paper feed roller is rotatably arranged to supply paper, the paper feed roller is attached to a swinging arm that can freely swing up and down, and the paper feed roller is attached to a side of the paper feed tray. A paper feeding mechanism for a printer, characterized in that a cam portion is formed having a shape in which a tip end of the swinging arm comes into contact with the swinging arm and swings the swinging arm upward when the paper feed tray is attached or removed.