JP2560119Y2 - Plotter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plotter in which roll paper or cut paper is supplied to a printing mechanism for printing.

[0002]

2. Description of the Related Art This type of plotter includes a scroller holder for rotatably and detachably holding a scroller on which roll paper is mounted. When the scroller holder holds the scroller, as shown in FIG. Is engaged with a gear 3 fixed to an output shaft of the motor, and the scroller 1 is linked to the motor. In this way, by linking the scroller 1 to the motor and rotating the scroller 1 by the motor, the roll paper 4 on the scroller 1 can be smoothly transported to the paper transport path of the plotter body.

[0003]

As described above, if the connection between the scroller 1 and the motor is made by meshing the gears 2 and 3, as shown in FIG.
As shown in (2), the tooth tips of the gears 2 and 3 may collide with each other, and the gears 2 and 3 may be damaged. Further, there are defects such as generation of gear meshing noise when the scroller rotates.
The purpose of the present invention is to eliminate the above-mentioned defects.

[0004]

In order to achieve the above object, according to the present invention, a scroller holder 11 for detachably and rotatably holding a scroller 9 for roll paper, and the scroller holder 11 held by the scroller holder 11 are provided. In the state, a rubber roller 13 which is in pressure contact with the disk 9a of the scroller 9 has a scroll roller driving motor 12 provided on an output shaft.
It is provided with.

[0005]

When the scroller 9 is held by the scroller holder 11, the disk body 9a of the scroller 9 is pressed against the rubber roller 13, and the scroller 9 is linked to the scroller driving motor 12. The rotational driving force of the scroller driving motor 12 is transmitted to the scroller 9 via the rubber roller 13 and the board 9a, and the rotation of the scroller 9 is controlled by the motor 12.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings. Reference numerals 5 and 6 denote leg plates of the plotter, on which a support plate 7 is installed. A scroller holder 11 is provided on the support plate 7 for detachably and rotatably fitting and holding both shaft portions 10 of a scroller 9 on which the roll paper 8 is mounted in a wound state.

[0007] The scroller 9 comprises a core and plastic discs 9a and 9b fixed to both ends of the core. Reference numeral 12 denotes a scroller drive motor fixed to the support plate 7, which is connected to a controller.

The output shaft of the motor 12 has a rubber roller 1
3 is fixed, and the roller 13 is arranged at a position where the roller 13 is pressed against the outer peripheral surface of the disk 9a when the holder 11 holds the scroller 9.

FIG. 2 shows the inside of the main body 14 of the plotter.
A roll paper transport path is formed from the middle, left end entrance 15 to the right end exit 16, and the paper detection sensor 1
7. A feed roller 19, a paper detection sensor 18, and a printing mechanism 20 linked to the motor are provided. A cut sheet insertion port 21 is provided in the upper part of the main body 14, and the cut sheet 23 inserted from the insertion port 21 via the cut sheet guide path 22 is guided to the stamp mechanism 20.

Next, the operation of this embodiment will be described in detail with reference to the flowchart shown in FIG. The flowchart of FIG. 3 shows an operation of switching from roll paper to cut paper when drawing with cut paper 23 in a state where roll paper 8 is mounted on scroller holder 11.

First, the operator operates the panel key 24 of the main body 14 to switch the controller to the cut sheet use mode. The controller determines in step 1 whether or not the cut sheet use mode is in effect.
Then, it is determined from the output of the sensor 17 whether or not the roll paper 8 is loaded in the roll paper transport path inside the main body 14.
If the determination is affirmative, in step 3, the controller reverses the feed roller 19, pulls back the roll paper 8 in the direction opposite to the paper transport direction in the arrow direction A, and pulls out the roll paper 8 from the printing mechanism 20 in the backward direction.

The roll paper 8 pulled back in the direction opposite to the direction A is correspondingly moved by the scroller 9 driven by the motor 12.
2 is wound around the scroller 9 by the counterclockwise rotation of FIG. The controller determines in step 4 that the sensor 18
The position of the paper is detected by the
8, the roll paper 8 is taken up by the scroller 9,
When the sensor 18 is turned off (step 5), the controller ends the winding operation of the roll paper 8 (step 6).

Next, in step 7, the operator inserts the cut sheet 23 from the cut sheet insertion slot 21 and the operator turns on the drawing switch on the operation panel (step 8). Move to the drawing operation for. If a negative decision is made in step 1,
The controller proceeds to step 10 and selects the roll paper mode. Next, the roll paper feeding operation will be described with reference to the flowchart shown in FIG.

The operator operates the panel switch 24 to select a roll paper use mode. In step 1, the controller determines whether or not the roll paper use mode is set. If the determination is affirmative, the controller determines whether or not the roll paper 8 is loaded in the roll paper transport path of the main body 14 based on the on / off state of the sensor 17 ( Step 2) If the judgment is affirmative, the controller turns on the drawing switch in step 3. Next, the controller drives the motor 12 in step 5 to rotate the scroller 9 in the paper supply direction, feeds the roll paper 8 from the scroller 9 by a predetermined amount, and forms a slack, ie, a margin, on the roll paper 8.

Next, the controller rotates the feed roller 19 in step 6 to convey the roll paper 8 into the printing mechanism 20 by a margin, and executes printing on the roll paper 8 in step 7. If the roll paper 8 on the scroll roller 9 is directly drawn out by the feed roller 19 without forming the margin, the paper is elongated and deformed. Next, the controller determines in step 8 whether or not continuous printing is performed. If the determination is affirmative, the process returns to step 4; If a negative determination is made in step 1, the controller selects the cut sheet mode, and if a negative determination is made in step 2, an error is displayed on the display unit of the switch panel 24.

[0016]

According to the present invention, the driving sound of the scroller is reduced and the rotational force transmitting means is not damaged when the scroller is attached or detached. In addition, cut paper and roll paper can be used, and the roll paper is not deformed during paper transport.

[Brief description of the drawings]

FIG. 1 is a partially cutaway external view.

FIG. 2 is a side sectional view.

FIG. 3 is a flowchart.

FIG. 4 is a flowchart.

FIG. 5 is a side view of the prior art.

FIG. 6 is an enlarged side view of the prior art.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 scroller 2 gear 3 gear 4 roll paper 5 leg plate 6 leg plate 7 support plate 8 roll paper 9 scroller 10 shaft portion 11 scroller holder 12 motor 13 rubber roller 14 body 15 inlet 16 outlet 17 paper detection sensor 18 paper detection sensor 19 feed roller 20 printing Mechanism 21 Cut paper insertion slot 22 Cut paper guide path 23 Cut paper 24 Panel key

Claims (3)

(57) [Scope of request for utility model registration] A roll paper (8) is provided below a main body (14).
Scroller with a disk body (9a) formed at the end
Scroller roller that holds (9) detachably and rotatably
And a scroller holder (1).
When the scroller (9) is held in 1), the scroll
Rubber roller so as to press against the disk (9a) of the roller (9).
(13) is provided rotatably, and the rubber roller (13) is
Connected to the output shaft of a scroller drive motor (12),
Roll paper (8) is fed out from the scroller (9)
And supply it to the printing mechanism (20) of the main body (14).
A plotter characterized by: 2. A roll paper transport path for transporting the roll paper (8) to the printing mechanism (20), and a cut paper guide path (2) for guiding the cut paper to the printing mechanism (20).
2) is provided, and the roll paper (8) rotatably held is supplied to the roll paper transport path to print on the roll paper (8) in the printing mechanism (20) .
When the cut sheet use mode is selected, the roll paper
The plotter according to claim 1, wherein the roll paper (8) is pulled out from the printing mechanism (20) by transporting the roll paper (8) in the reverse direction, and is retracted to a predetermined position. Ta. 3. A roll paper transport path having a feed roller (19) for guiding the roll paper (8) to a printing mechanism (20) is provided in the main body (14), and a scroll roller drive motor (12) is provided.
The rotation of the feed roller (19) supplies the roll paper (8), which is rotatably held in association with the printing mechanism (20), to the printing mechanism (20) via the roll paper transport path. form so as to perform printing on the feeding unit (8), the roll paper prior to feeding to the printing mechanism a feeding unit of a predetermined amount of the paper roll (8) (20) by rotation of the feed roller (19) The roll section (8) is rotated in the supply direction by the scroller drive motor (12), and the printing mechanism (2) is applied to the roll paper (8).
The plotter according to claim 1, wherein an amount of sag substantially corresponding to the amount supplied in (0) is generated.