JP2674497B2 - Printer position setting device for printer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a serial type printer which prints by moving a print head in the width direction of a print sheet, and more particularly to a print position setting device therefor.

[0002]

2. Description of the Related Art A conventional print position setting device inputs a digitized print position from a main body operation panel or sends a print position setting command from a computer online to send numerical data of the print position. Was going by.

[0003]

However, in the above-mentioned conventional print position setting device, it is necessary to operate the main body operation panel and send the command / position data from the computer online based on a fixed procedure. For,
There was a problem that it took time and effort to set. In addition, since the print position is digitized once, there is no method other than confirming whether the print position is set to the desired position by trial printing, which is not only complicated but also the print medium. If the (printing paper) is special or expensive, it is difficult to perform trial printing.

Therefore, the present invention has been made in view of the above problems and drawbacks of the related art, and an object of the present invention is to provide a printer in which the print position can be easily set and the print position can be easily confirmed. It is to provide a printing position setting device.

[0005]

To achieve this object, a printing position setting device in a printer according to the present invention includes a print head for printing on a print sheet and a movement for moving the print head in the print sheet width direction. A mechanism, position detecting means for detecting the initial position of the print head, a storage unit for storing the amount of movement between the print position and the initial position of the print head, and opening and closing of the housing upper cover. Cover detecting hand to detect
And stage, the printing head, the moving mechanism, the position detecting means is composed of a storage unit and a control portion for controlling the cover detection means, Gabber from the open cover by the cover detector
When it is detected that the print head is closed, the print head is
Return to the initial position, store the amount of movement in the storage unit,
Move the print start position based on the information in this memory.
You.

[0006]

According to the present invention, the cover is detected by the cover detecting means.
When closing is detected, the print head returns to the initial position and
The amount of motion is stored in the storage unit, and based on the information in this storage unit,
Move to the print start position.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a position setting device in a printer according to the present invention. In the figure, reference numeral 1 denotes a print head for printing on the recording paper 2, which is movable by a moving mechanism 3 in the width direction of the recording paper 2 (left-right direction in the drawing). Reference numeral 4 denotes a position sensor for detecting a certain point within the moving range of the print head 1, that is, an initial position in this embodiment. 5 is a print position setting switch, which is set by operating the print head 1
To the initial position. A storage unit 6 stores the amount of movement of the print head 1 from the initial position to the set position. Reference numeral 7 denotes a control unit that integrally controls the print head 1, the moving mechanism 3, a drive motor (not shown) that moves the print head 1 in the left-right direction, the position sensor 4, the print position setting switch 5, and the storage unit 6.

In such a structure, the print head 1
Is movable left and right on the moving mechanism 3, and during normal printing, it moves left and right by the driving force of a motor (not shown), and in synchronization with this movement, it is driven by the print head drive unit to drive the recording paper. Print on top of 2. Position sensor 4
Detects that the print head 1 is at the initial position of the print head 1 in the initial state such as power-on.

FIG. 2 is a block diagram showing a second embodiment of the present invention. In the second embodiment, a cover open / close sensor 8 for detecting the open / closed state of the upper housing cover 9 is provided, and this cover open / close sensor 8 corresponds to the print position setting switch 5 in the first embodiment described above. I'm changing.

Next, the print position setting operation will be described based on FIG. 3 by using the second embodiment described above. FIG.
In step 101, when the cover open / close sensor 8 detects the cover open state, the controller 7 drives the print head drive motor (not shown) in step 101 to move the print head 1 to the position detected by the position sensor 4. By doing
The position of the print head 1 is initialized.

In this state, it waits for the cover open / close sensor 8 to detect the cover close. During this standby, it is possible to manually move the print head 1 in the left-right direction and accurately align it with the desired print position A. Then, in step 102, when the cover open / close sensor 8 detects that the cover is closed, the print head 1 is moved again by 1 and returned to the initial position. In step 103, it is determined whether or not the print head 1 is in the initial position while waiting for the cover to open, and if there is movement, step 104.
At that time, the movement amount 1 is stored in the storage unit 6, and if it does not exist, the movement amount stored value in the storage unit 6 is cleared at Step 105, and the printable state is set at Step 106.

Regarding the detection of the movement amount, in the present embodiment, the drive motor of the print head is a step motor.
Although it is performed by counting the number of drive pulses, it is not limited to this, for example, a servo motor may be used, and the pulse from the encoder that detects the print head position may be counted. Of course, various methods can be considered.

Next, as shown in FIG. 1B, when a print request such as reception of print data is made, step 11
0, it is referred to whether the movement amount of the print head 1 is stored in the storage unit 6, and if the print head 1 is moved while the cover is open, the information in the storage unit 4 is determined in step 112. The print start position is moved based on. If the print head 1 has not moved while the cover is open, the print start state from the initial position is set in step 111, and the print enable state is set in step 113.

Here, in step 112 where the print start position is different from the initial position, it goes without saying that in order to return the print head 1 to the initial position, it is sufficient to simply open and close the housing upper cover 9. Also in the first embodiment, it goes without saying that the print position setting operation described above can be obtained by operating the print position setting switch 5 instead of the cover opening / closing switch 8.

[0015]

According to the present invention as described above, according to the present invention, Ca
When the cover detection is detected by the bar detection means , the print head at the printing position is returned to the initial position, the position detection means detects it, and the storage portion stores the printing position. It has a function to move the print head directly and set it regardless of the operation of the main body operation panel and the setting of the print position by sending commands and position data from the computer online. Very easy to do. Further, since the setting of the printing position depends on the position of the print head, not on the numerical data, it is possible to easily confirm whether the setting of the printing position is the desired position, and the trial printing becomes unnecessary. Furthermore, cover detection means
Detects that the cover is closed after the cover is opened.
Then, the print head is returned to the initial position, and the amount of movement from the print position of this print head to the initial position is stored in the storage unit.
The print head is moved to the print start position based on the information in this memory.
Since it was moved to, printing while the cover is open
Even if the head moves, the amount of movement is stored in the memory.
Therefore, it is possible to accurately position the desired print start position.
You.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a print position setting device in a printer according to the present invention.

FIG. 2 is a configuration diagram of a second embodiment of a print position setting device in a printer according to the present invention.

FIG. 3 is a flow chart of position setting operation of the second embodiment of the print position setting device in the printer according to the present invention.

[Explanation of symbols]

 1 print head 2 recording paper 3 moving mechanism 4 position sensor 5 print position setting switch 6 storage unit 7 control unit 8 cover open / close sensor 9 housing upper cover

Claims (1)

(57) [Claims] 1. A print head for printing on print paper, and a moving mechanism for moving the print head in the print paper width direction.
Position detecting means for detecting the initial position of the print head,
The amount of movement from the initial position of the print head to the print position
A storage unit that stores the data and a key that detects whether the top cover of the chassis is open or closed.
The cover detection unit is composed of a bar detection unit, a print head, a moving mechanism, a position detection unit, a storage unit, and a control unit that integrally controls the cover detection unit.
When it is detected that the cover is closed,
Return the head to the initial position and store the amount of movement in the storage unit.
The print start position is stored based on the information in this storage section.
A printing position setting device in a printer, which is moved .