JPH058511A - Printer - Google Patents

Abstract

PURPOSE:To set conditions with simple operation by a method wherein a traveling distance of a print head up to the home position after a power switch is turned on is recognized, and a predetermined logic is selected corresponding to the traveling distance. CONSTITUTION:A power switch 9 is turned on and a circuit part 8 generates driving pulses to a motor 4 to slide a carriage 6 in the direction shown by an arrow A. The number of pulses that are generated until the moment a fin part of the carriage 6 passes a home position sensor 7 are stored in the circuit part 8. Thereby, the position of the carriage 2, i.e., the position of the print head 1, at the time the power switch 9 is turned on is recognized, and the circuit part 8 selects a process logic corresponding to the position. By moving the print head 1 to a certain position with the hand and turning the power switch 9 on to use a printer, setting of conditions such as initial setting, mode setting, etc., is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for selecting a processing logic of a printer.

[0002]

2. Description of the Related Art Conventionally, regarding conditions that can be appropriately selected by the user, such as initial settings and mode settings required when using a printer, it is necessary for the user himself to perform key operation and dep switch operation on the operation panel. If this is not done, it is common to print under the conditions preset in the printer.

[0003]

However, these are not only troublesome to operate, but also require a key and a switch on the printer side, which causes an increase in cost.

[0004]

[Means for solving the problem] Power switch is "ON"
By recognizing the position of the print head at the moment when
A processing circuit that selects various predetermined processing logics according to the position where the print head was located.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view of an embodiment relating to the present invention. Generally, a printer using an electric motor drives a carriage motor at the same time when power is turned on to allow a carriage to pass a home point sensor, and defines an absolute position of the carriage at a moment when the sensor senses the home point sensor. If the motor used is a pulse motor, this pulse is counted. If the motor is a DC motor, the encoder output pulse is counted, so that the absolute position of the carriage can be maintained even after sensing.

On the contrary, if the number of pulses from the power-on time to the sensing is counted, the position of the carriage at the time of power-on, that is, the position of the print head can be recognized.

The print head 1 is fixed to the carriage 2,
The belt 3 is connected to the motor 4, and an idler (not shown) is provided on the inner circumference of the belt on the side opposite to the motor. The carriage 2 is slidably held by guide shafts 2a and 2b. In this figure, the longitudinal direction of the guide shaft is omitted. A fin portion 6 is formed at one end of the carriage 2, and the fin portion passes through the home point sensor 7 while the carriage slides and sends a signal to the circuit portion 8.
The circuitry can also generate the required pulses to drive the motor 4.

Now, assuming that the power switch 9 is turned "ON" in the state shown in this figure, the circuit portion immediately becomes the motor 4
A drive pulse is generated for the carriage 6 to move the carriage 6 in the direction of arrow A.
Slide in the direction. As a result, if the circuit unit 8 stores the number of pulses up to the moment when the fin unit 6 passes the home point sensor 7, it is possible to recognize the position where the carriage, that is, the print head was present when the power was turned on. This enables the circuit unit to select the processing logic according to the position where the print head was located.

FIG. 2 shows a perspective view of a conventional embodiment. A partial cover 31 is provided in the vicinity of the operation panel 33 provided on the printer 30, and a DIP switch is provided inside the partial cover. The user can set the condition by switching the switch of the number corresponding to the desired printing condition with the tip of a pen or the like.

[0010]

As described above, according to the present invention, the position where the print head is held by the hand can be achieved without causing a troublesome operation when the user changes the condition design of the printer and an increase in cost such as addition of parts for the operation. The condition can be set by moving the power switch to “ON” and then turning the power switch “ON”.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment relating to the present invention.

FIG. 2 is a conventional perspective view.

[Explanation of symbols]

 1 Print Head 2 Carriage 3 Belt 4 Motor 5a, 5b Guide Shaft 6 Fins 7 Home Point Sensor 8 Circuit 9 Power Switch 30 Printer 31 Partial Cover 32 Dip Switch 33 Operation Panel

Claims (1)

[Claims] [Claim 1] After the power switch is turned on,
Recognize the distance the print head moves to the home point,
A printer characterized by selecting a predetermined processing logic according to the distance.