JPS6040271A - Printer - Google Patents

Abstract

PURPOSE:To achieve an automatic suction and the detection of the presence of a paper with a simple construction by controlling an alarm section and a motor control section according to the information on a detector for presence of paper provided at a paper feeder. CONSTITUTION:When a paper 2 is inserted onto a sensor 1, light of a photodiode is reflected on the paper 2 and information is fed to a microprocessor 3. The processor 3 issues an instruction for rotating a motor 6 to a motor control section 5 to make the paper 2 to be sucked to the home position with a platen 7 and a roller 8. As the motor 6 rotates for a fixed time, the processor 3 sends an instruction of stopping the motor 6 to the motor control section 5. At this point, the paper 2 is driven to the home position while a data to be printed is taken into a printing section. The processor 3 judges the end edge of the paper and issues an instruction of driving the motor 6 to the motor control section 5 to drive the paper 2 by one line of printing. The processor 3 generates an alarm by an alarm device 4 for a fixed time.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a printer for printing output information of devices such as macro computers and word processors.

Conventional configurations and their problems Recent microcomputers, word processors, etc.
The development of so-called office automation equipment is remarkable.

Printers that print output information as terminal devices for the devices listed above have printers that, when loading paper, either manually insert the paper directly to the device position, or rotate a knob that holds the platen to load the paper. There are those that are installed in a predetermined position, and those that have an automatic paper suction device that automatically guides the paper to the loading position by simply inserting the paper and inputting a loading command using a switch.

On the other hand, the above-mentioned printer is provided with a paper presence/absence detection device in addition to the above-mentioned automatic paper suction device, for example. The paper presence/absence detection device is provided for the purpose of issuing an alarm and stopping printing when a piece of paper is detected.

Now, in a conventional printer equipped with an automatic paper suction device and a paper presence/absence detection device, although each device starts its operation depending on the state of the paper, there is no correlation between the operations of each other. It had no

OBJECTS OF THE INVENTION In view of the above-mentioned drawbacks, an object of the present invention is to provide a printer capable of automatically sucking paper and detecting the presence or absence of paper with a simpler configuration than the conventional printer.

Structure of the Invention The present invention achieves the above object by controlling a motor control section as well as an alarm section that notifies the presence or absence of paper according to information from a paper presence/absence detecting device provided in a paper feeding section having a platen. It's just like that.

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

FIG. 1 is a block diagram of main parts of a printer in an embodiment of the present invention.

In Fig. 1, 1 is a sensor that detects the presence or absence of paper;
The detection result is output to terminal S as binary information.

That is, as shown in FIG. 2, this sensor 1 is configured so that the light is reflected by a mirror 2 and enters a phototransistor 1b.

3 is a microprocessor that controls the binary information of the sensor 1 according to a flowchart described later; 4 is an alarm that issues an alarm according to instructions from the microprocessor 3; and 5 is a controller that controls the driving of a simulator 6 according to instructions from the microprocessor 3. This is the motor control section.

Next, the installation of the sensor 1 will be explained in detail with reference to FIG.

FIG. 3 shows the main parts of the automatic paper suction section. In the figure, 7 is a platen that is driven by the motor 6 and rotates in the X direction to feed the paper 2, and 8 is a roller that is also driven by the motor 6 and rotates in the Y direction to feed the paper 2. , 9 are guide plates for guiding the feeding of the paper 2, and the sensor 1 is provided at the position where the paper 2 is inserted.

The operation of the printer configured as described above will be explained below with reference to the flowchart shown in FIG. 4.

(A)...First, when paper 2 is inserted onto sensor 1,
The light from the photodiode 1a is absorbed by the paper 2, and the phototransistor 1b becomes conductive. When the phototransistor 1b becomes conductive, information "1" is sent to the micro 7'o setter 3 via the terminal S.

(2)...The microprocessor 3, which has received the blue signal "1" sent from the sensor 1, outputs a command to rotate the motor 6 to the motor control section 6.

(C) When the motor 6 rotates, the paper 2 is automatically sucked into a fixed position by the platen 7 and rollers 8.

(D) When the motor 6 is rotated for a certain period of time, the microprocessor 3 outputs a command to stop the rotation of the motor 6 to the motor control unit 5. , at this time, the paper 2 has been driven to the home position.

(K)...Data to be printed is taken into a printing section (not shown).

(F)...Printing is performed on the paper 2 by the printing unit.

(G)...The microprocessor 3 determines that the paper is out. In other words, the information sent from sensor 1 is "1"
or rOJ. If the information is "1", proceed to H; if the information is rOJ, proceed to engineering.

(6)...The microprocessor 3 1 gives a command to the motor control unit 5 to drive the motor 6, and drives the paper 2 by one printing line.

(I)...After the microprocessor 3td and the W binding device 4 generate an alarm for a certain period of time, the process returns to A.

As described above, according to this embodiment, the sensor 1 and the alarm 4, which have been used as a conventional paper presence detection device, and the motor control section 6, which has been used as a conventional paper automatic suction device, are connected via the microprocessor 3. By controlling the operation, it is possible to omit a switch for instructing the paper loading of the automatic paper suction device, which was conventionally necessary.

Effects of the Invention As described above, the present invention enables the alarm unit and the motor control unit to F++ according to the information of the paper presence/absence detection device provided in the paper feed unit.
By configuring it to control IJ, automatic paper suction and paper presence detection can be achieved with a simpler configuration than before.
Its practical value is that of a dog.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the main parts of a printer according to an embodiment of the present invention, Fig. 2 is a seven-way wiring diagram, Fig. 3 is a cross-sectional view of the paper feed section, and Fig. 4 is an operation of the printer in this embodiment. FIG. 1...Sensor +3...Microprocessor, 4...Alarm, 6...Motor control 1-1
Section 6...Motor. Name of agent: Satoshi Nakao, Ph.D., 93, and one other person Figure 12 Figure 3 Figure 4

Claims (2)

[Claims] (1) A paper presence/absence detection device provided in a paper feeding section having a platen, a motor control section that controls a motor that rotates the platen, and a paper presence/absence detection device that controls the motor control section according to information from the paper presence/absence detection device. A printer comprising: a processing unit that instructs to send out and stop feeding; and an alarm unit that notifies the paper feeding unit that the paper is out of paper according to information from the paper presence/absence detection device. (2) The printer according to claim 1, wherein the paper presence/absence detection device comprises a sensor consisting of a light emitting element and a light receiving element.