JPH02175524A - Printer device - Google Patents

Abstract

PURPOSE:To prevent insufficient transfer of paper sheets, and to eliminate the failure of the mechanical unit due to forging matter by constituting the titled device in such a way that whether or not the paper sheet cassette has been set in a prescribed position can be detected by a switch, so that when the paper sheet cassette is not set, the movement of the printer mechanical unit is stopped. CONSTITUTION:When a paper sheet cassette 2 in which paper sheets 3 are housed is set in a prescribed position of a printer device, a detecting switch 6 abuts on the projected part 2a of the paper sheet cassette, and detects that the paper sheet cassette is placed in a prescribed position. If the paper sheet cassette is drawn out in the F direction from this condition, or if the setting of the paper sheet cassette is not sufficient, this detecting switch 6 is turned OFF, and judges that the paper sheet cassette 2 is not set in a prescribed position, and the progression to the subsequent action is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to detecting the presence or absence of a paper cassette in a printer device.

[Conventional technology]

FIG. 2 is a diagram showing a conventional printer device. In the figure, ■ is a mounting base, 2 is a paper cassette that is removably attached to the printer device, 3 is paper that is attached to this paper cassette, and 4 is a paper cassette. A pair of guides on both sides slidably guide 2 in the direction of arrow F or 0, and 5 is a printer mechanical unit.

Next, the operation will be explained. After loading the paper 3 into the paper cassette 2, the user mounts the paper cassette 2 in the G direction using the guide 4. When the installation of the paper cassette 2 is completed, an instruction to start printing is given, and with this instruction,
Printer mechanical unit 5 starts printing operation.

[Problem to be solved by the invention]

Conventional printer devices are configured as described above, but printing operations are possible even when the paper cassette is not installed or is not installed properly. Even if the operation is not performed properly or if a foreign object is inserted through the opening during operation,
There was a point during which the movement did not stop.

This invention was made to solve the above-mentioned problems, and its purpose is to detect whether or not a paper cassette is installed, and to prevent a printing operation from occurring if a paper cassette is not installed. .

[Means to solve the problem]

The printer device according to the present invention is provided with a detection switch for detecting the normal position of the paper cassette near the mounting position of the paper cassette that stores paper.

[Effect]

The detection switch in this invention operates only when the paper cassette is in the correct position to enable printing, and eliminates malfunctions when the paper cassette is not installed properly or is not installed. did.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, ■ is attached to the base, 2 is a paper cassette integrally provided with a convex portion 2a, 3 is paper stored in this paper cassette 2, and 6 is fixed to the mounting base 1 and is attached to the paper cassette 2. This is a detection switch that engages with a convex portion 2a formed on the paper cassette 2 at the position where the paper cassette 2 is installed.

Next, the operation will be explained. FIG. 1 shows a state in which the paper cassette 2 containing paper 3 is set in a predetermined (regular) position of the printer device, and at this time, the detection switch 6 is in contact with the protrusion of the paper cassette. Detects that the paper cassette is in the specified position. If the paper cassette is pulled out in the F direction from this state, or if the paper cassette is not set enough, this detection switch 6 will turn OFF and it will be determined that the paper cassette 2 is not at the specified position. , cannot proceed to the next operation.

When the paper cassette 2 is in a predetermined position and the operator gives an instruction for the next operation, the printer mechanical unit 5 starts operating and transports the paper 3 in the input direction (the transport operation will be omitted).

〔Effect of the invention〕

As described above, according to the present invention, since the switch is configured to detect whether or not the paper cassette is installed in a predetermined position, the printer mechanical unit does not operate when the paper cassette is not installed. This has the effect of eliminating mechanical failures caused by insufficient paper conveyance or foreign objects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a printer device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a conventional printer device. In the figure, 1 is the mounting base, 2 is the paper cassette, 3 is paper,
4 is a guide, 5 is a printer mechanical unit, and 6 is a detection switch. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] In a printer device equipped with a paper cassette that stores paper and is removable along a guide, and a printer mechanical unit that takes paper from the paper cassette and prints, the paper cassette is installed at a position opposite to the installation position of the paper cassette. A printer device characterized in that a detection switch is provided to detect whether or not the paper cassette is installed, so that the printer mechanical unit operates only when the paper cassette is installed in a proper position.