JPH03264372A - Printer device - Google Patents

Abstract

PURPOSE:To correct the skew of printing paper by providing a printing paper position detection part for detecting the right and left loading positions of printing paper and a correction drive circuit for correcting the position of the printing paper under control of the movement of right and left tracks on a signal from said detection part. CONSTITUTION:A tractor 12 feeds the left edge of printing paper 16 through a motor gear 8 and a gear 10 by the rotation of a motor 6. Similarly, a tractor 13 feeds the right edge of the printing paper 16 through a motor gear 9 and a gear 11 by the rotation of a motor 7. On a paper feed instruction from a CPU, the motor 6 and the motor 7 start at the same time. At this time, the positions of sprocket holes 17 of the printing paper 16 are detected by printing paper detectors 14 and 15 respectively provided on the tractor 12 and the tractor 13. In this manner, the skew of the printing paper 16 is detected, and in accor dance with the skew amount, the rotating speed of the motor 6 or the motor 7 is controlled. Under this control, the skew of the printing paper 16 is corrected, and the printing paper is set in a normal state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a serial printing type printer device, and more particularly to a type of printer device that sucks in a loaded printing paper and mounts it at a predetermined position.

[Conventional technology]

In conventional printers of this type, a special guide device is provided for loading the printing paper, and the printing paper is always guided to the guide device before suction is carried out.

[Problem to be solved by the invention]

As mentioned above, conventional printer devices that suck printing paper and mount it in a predetermined position require a special guide device to be installed in the paper feed mechanism, and when installing the guide device in the printer device, it is necessary to However, there are disadvantages in that it is difficult to adjust the condition of the paper, and the mechanism for feeding the paper is complicated.

[Means to solve the problem]

The printer device of the present invention is a printer device that is used with continuous printing paper having a sprocket hole attached thereto, and includes a printing paper position detection unit for detecting the left and right positions of the printing paper, and a printing paper position detection unit that detects the mounting position of the printing paper. and a correction drive circuit for correcting the position of the printing paper by controlling the movement of the left and right tracks based on the signals.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In FIG. 1, a signal from a detector provided in a printing paper position detection circuit 4 is converted by a microprocessor (CPU) 1 into position information corresponding to the inclination of the printing paper.

The CPU individually controls the motors 6 and 7 for correcting the printing paper based on the position information from the printing paper position detection circuit 4, and controls the rotation of the motors 6 and 7 for correcting the printing paper until the inclination of the printing paper becomes normal. When the correcting motors 6 and 7 reach the normal position, the rotational speeds of the correction motors 6 and 7 are made the same to control the paper feeding mechanism section 3.

FIG. 2 is a plan view showing details of the paper feeding mechanism section 3. FIG.

In FIG. 2, the printing paper 16 is sent in the direction of arrow A by the movement of the tractors 12 and 13.
The tractor 12 and the tractor 13 can be moved independently. The tractor 12 transports the left side of the printing paper 16 through the motor gear 8 and gear 10 by the rotation of the motor 6. Similarly, the tractor 13 transports the right side of the printing paper 16 through the motor gear 9 and gear 11 by the rotation of the motor 7. . Motor 6 responds to the paper feed command from the CPUI.
The motor 7 starts moving at the same time, but the position of the sprocket hole 17 of the printing paper 16 is detected by the printing paper detectors 14 and 15 provided independently on the tractor 12 and the tractor 13, respectively. The inclination is detected and motor 6 or motor 7 is activated depending on the amount of inclination.
The rotation speed of the printing paper 16 is controlled to correct the inclination of the printing paper 16 and bring it into a normal state.

〔Effect of the invention〕

As explained above, the printer device of the present invention has a detection circuit for detecting the position of printing paper and a drive circuit for correcting the position of printing paper, and controls them with a microprocessor to correct the printing paper. Since the inclination of the printing paper can be brought to a normal state, there is an effect that the inclination of the position of the printing paper can be corrected regardless of the mounting state of the printing paper. Therefore, there is no need for the operator to adjust the kite mechanism when loading printing paper as in the past, and the printer itself can correct the printing paper to the correct position by simply loading the printing paper into the printer device. effective.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a plan view showing a paper feeding mechanism section of the embodiment of FIG. DESCRIPTION OF SYMBOLS 1...Microprocessor (CPU), 2...Input control section, 3...Paper feeding mechanism section, 4...Print paper position detection circuit, 5...Print paper correction drive circuit, 6.7.
・・Motor, 8・9・・Motor gear, 10・11・・
・Gear, 12/13...Tractor, 14/15...
Paper position detector, 16...Print paper, 17...Sprocket hole. 7th village morph

Claims (1)

[Claims] In a printer device that is used with continuous printing paper installed with sprocket holes, there is a printing paper position detection section for detecting the left and right positions of the printing paper installed, and a signal from the printing paper position detection section is used to detect the left and right tracks. A printer apparatus comprising: a correction drive circuit for correcting the position of the printing paper by controlling the movement thereof.