JPS61192576A - Printer paper transport mechanism - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Field of application of the invention] The present invention relates to a paper transport mechanism for a printer.

[Background of the invention]

2. Description of the Related Art Generally, printer paper transport mechanisms are known that use a set of tractors to transport one type of continuous paper. According to this technology, when using another continuous form, it is necessary to remove the form that has been used until now from the tractor and replace it with the other form that you want to use. It is very troublesome as you will have to change it many times.

As a solution to this drawback,
As shown in Publication No. 6, K, with the continuous paper cented,
A technique is known in which a second form, ie, a cut sheet, is fed onto this paper and printing is performed on this cut sheet. However, according to this technique, a problem occurs when the second form is continuous paper, and this mechanism is insufficient.

[Purpose of the invention]

An object of the present invention is to provide a paper conveyance mechanism capable of conveying two types of continuous forms to a common printing section.

[Summary of the invention]

The present invention provides a printer for printing continuous forms conveyed on a platen by a printing means, including a platen having a gear means, a power source, and a first continuous form driven by the power source to guide the first continuous form to the platen. a first conveying means for guiding a second continuous form to the platen; and a first set position for conveying either the first or second continuous form to the platen. and a switching lever means for switching between a second setting position and a second setting position, and transmitting power from the power source to the second conveying means via a gear means of the platen when the switching lever means is in the second setting position. It is equipped with a gear mechanism.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIG.

In this embodiment, the first continuous form 14 and the second continuous form +7 are conveyed through a common printing section. This printing section includes a platen 8, a print head 10, and a feed roller 19, and the print head 10 is connected to the first or second
Printing is performed on consecutive forms.

Continuous forms 14 and 17 are selectively conveyed by motor 2, which is a common power source. The lever 6 is used to switch which form is to be transported.

Now, to explain in more detail, the tractor 1 for conveying the continuous form 14 is driven by the rotation of the motor 2 via the belt 5 and the pulley 4. The tractor 5 is for conveying continuous forms 17. That is, when the switching lever 6 is set to the A side, the switching gear 7 meshes with the platen gear 8 and the gear 9, so the rotation of the motor 2 causes the belt 3, the platen pulley 82, the platen gear 81, the switching gear 7, and the gear 9. The tractor 5 is driven via gears 11°12.15. In order to guide the continuous form 14, a conveyance path is formed by guides 21, 22, and 25, and a sensor 15 is provided on this conveyance path.

When using continuous form 14, move continuous form 17 to platen 8.
Since it is necessary to remove the continuous form 17 from above, the platen 8 is reversed and the continuous form 17 is returned until the sensor 15 detects the absence of the continuous form 17. .

Then, when the switching lever 6 is switched to the B side position, the switching gear 7 and the gear 9 are disengaged.

When the switching lever 6 is in the B side position, the switch 18 is set to O.
Do N. In this state, the continuous form 14 becomes usable, and the continuous form 14 can be used without removing the continuous form 17.

On the other hand, when continuous form +7 is used, the tractor 1 and platen 8 are reversed, and the continuous form 14 is fed backwards and removed. Printing is then possible by simply setting the switching lever 6 to the A side position, rotating the platen 8, and bringing the continuous form 17 to the position of the feed roller 19. Therefore, once the frequently used continuous form +7 is set on the tractor 5,
[Effects of the Invention] According to the present invention, the second continuous form can be used as many times as necessary without removing it.
continuous forms can be used, and the trouble of setting continuous forms on the tractor many times can be omitted.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a continuous form conveyance mechanism according to an embodiment of the present invention. 1.5...Tractor, 2...Motor, 3...Belt 1.4...Pulley, 6...Switching lever, 7...
switching gear. 8... Platen, 81... Platen gear, 9, 11
,12゜13...gear, 82...platen pulley,
14.17...Continuous form, 15...Sensor, 18.
...Suisochi, 19...Feed roller. ,2・-n(,.

Claims (1)

[Claims] A printer that uses a printing means to print on a continuous form conveyed on a platen, the platen having a gear means, a power source, and a first continuous form driven by the power source to guide the first continuous form to the platen. a conveyance means, a second conveyance means for guiding a second continuous form to the platen, and a first set position and a second conveyance means for conveying either the first or second continuous form to the platen; a switching lever means for switching a setting position; and a gear mechanism for transmitting power from the power source to the second conveying means via the gear means of the platen when the switching lever means is in a second setting position. Paper transport mechanism with.