JPH03224769A - Printer apparatus - Google Patents

Abstract

PURPOSE:To obtain a printer device wherein a paper jamming can be easily repaired, and which may be made compact in construction, and suitable for systematization by a method wherein, the machine is constructed so that a platen roller moves together with a door from a front face side, and a driving system is separated therefrom. CONSTITUTION:The driving power of a motor 4 is transferred to a platen gear 8 through a gear train 5, rotates a platen roller 3, deliver a recording paper 6, and perform image drawing on the paper 6 using a thermal head 7. While said drawing and the like is performed, in the case that the recording paper causes jamming, or the printing paper is used up, when the front door 2 is laid flat toward this side for opening, a platen roller 3 and a platen gear 8 being fixed to a door open together, the paper in jammed state can be removed easily, and also the platen gear 8 and the gear train 5 can be separated from each other. Therefore, it is not necessary to provide a space for moving other driving system components, therefore, the whole structure can be made compact. Also, because all of the manipulations of the machine can be performed at the front side thereof, it is easy to build-in the whole structure of the title device into other product as a system.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printer device that prints, for example, characters or images, and particularly relates to replacing recording paper and handling paper jams.

[Conventional technology]

Figures 3 and 4 show an example of a conventional printer device. In the figures, 1 is the main body of the printer device, 2 is an opening/closing door provided on the top surface of the printer device, and 3° and 4.5 are both attached to this door. These are an attached platen roller for printing, a motor for driving the platen roller, and a gear train for transmitting the power of this motor to the platen roller.

6 is a recording paper built into the main body 1, and 7 is a head for printing.

Next, the operation will be explained. When printing, the third step is
As shown in the figure, with the door 2 closed, the motor 4 is used to drive the platen 3 to feed out the recording paper 6.
A voltage is applied to the thermal head 7 and an image is transferred onto the recording paper 6. When the recording paper 6 runs out or the recording paper becomes jammed, the door 2 is opened as shown in FIG. 4, and the recording paper is replaced or the jammed paper is dealt with.

[Problem to be solved by the invention]

Since the conventional printer device is configured as described above, in addition to the platen 3, the gear train 5,
The motors 4 had to be operated at the same time, and a large and heavy door had to be installed, making it difficult to save space and create a system.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a printer device that is compact and easy to systemize, in which paper can be easily replaced and paper jams can be cleared.

[Means to solve the problem]

The printer device according to the present invention allows the platen roller installed on the back side of the front door to move in synchronization with the boulder of the recording paper, and also allows the gear of the platen roller to be separated from other drive systems. It is something.

[Effect]

In the printer device according to the present invention, only the platen roller and the platen roller gear are attached to the recording paper holder, so that it is possible to easily replace the recording paper and clear paper jams, and it is possible to create a compact printer device. .

〔Example〕

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

In FIGS. 1 and 2, numeral 2 denotes a door whose lower part is pivotally supported on the front surface of the main body 1 so that it can be raised and lowered, and a holder 9 for holding recording paper 6 is provided on the back side of this front door. A platen roller 3 and a platen gear 8 attached to its shaft are mounted on the upper end of this holder 9.

Further, 5 and 4 are a gear train and its drive motor attached to the frame of the main body 1.

Next, its operation will be explained.

FIG. 1 is a diagram showing the time of printing, and the power of the motor 4 is as follows.
It is transmitted to the platen gear 8 by the gear train 5, rotates the platen roller 3, and sends out the recording paper 6, and
Printing is performed on the recording paper 6 using the thermal head 7. However, if the recording paper 6 gets jammed or runs out during printing, the door 2 should be moved to the front as shown in Figure 2. When the door is opened, the jammed paper is removed and the recording paper is replaced. At this time, when the door is opened, both the platen roller 3 and the platen gear 8 attached to the door open, making it easy to remove the jammed recording paper. In addition, since the platen gear 8 and the gear train 5 can be separated, there is no need to create a space for moving other drive systems, and the system can be made compact. Furthermore, since all operations can be performed from the front, it is easy to incorporate it into other products as a system.

Although gears are used in the drive system in the above embodiments, other drive methods such as a timing belt may be used.

〔Effect of the invention〕

As described above, according to the present invention, the platen roller is configured to move together with the door from the front side, and the drive system is separated, so that it is easy to clear paper jams, and it is compact and suitable for systemization. This has the effect of providing a printer device with improved performance.

[Brief explanation of drawings]

1 and 2 are side views showing a printer device according to an embodiment of the present invention, and FIGS. 3 and 4 are schematic perspective views showing a conventional printer device. In the figure, 1 is the main body, 2 is the door, 3 is the platen roller, 4
is a motor, 5 is a gear train, 6 is a recording paper, 7 is a thermal head, 8 is a platen gear, and 9 is a holder. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] In a printer device that prints characters, images, etc. on recording paper by heating with a thermal head, a door that can be raised and lowered is pivotally attached to the front of the printer device body, and a movable paper holder is attached to the back of this door. A printer device characterized in that it is equipped with a platen gear that can separate a platen roller and other drive systems, and that allows recording paper to be replaced and paper jams to be cleared from the front.