JPH07237320A - Method for adjusting printing position in serial printer - Google Patents

Abstract

PURPOSE:To accurately adjust a printing position by a method wherein after a paper feed to a corresponding line-feed line, a forward line feed is conducted by the paper feed amount, an upper end of a ribbon guide is made to coincide with a lower end position of a required printing line by adjusting a paper feed, and a printing position is adjusted to a required printing line by performing a reverse line feed by the paper feed amount. CONSTITUTION:A paper feed amount (a) from a paper feed position to an arbitrary line-feed line L1 to a paper feed position where a lower end position of a line-feed line L2 is coincident with an upper end position 7a of a ribbon guide 7 is determined. After a paper feed to the line-feed line L2, a forward line feed is conducted by the paper feed amount (a). After that, the upper end position 7a of the ribbon guide 7 is made to coincide with a lower end position of a required printing line L3 by adjusting a paper feed. After the coincidence, a reverse line feed is carried out by the paper feed amount (a), whereby a printing position is adjusted to the printing line L3. As a result, a printing position can be accurately adjusted to a required printing line in reference to the visible upper end position of the ribbon guide, and an accuracy in adjusting a printing position to a desired printing line is enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing position adjusting method for a serial printer.

[0002]

2. Description of the Related Art In a serial printer, the left and right margins, line feed widths, etc. are determined when setting the print format, as with other types of printers. In addition, it is possible to print from a predetermined print start head position.

On the other hand, there is a case where it is desired to print a character or the like from a desired print start head position on a desired print line which is displaced from a corresponding predetermined line feed line. For example, as shown in FIG. 11, the set line feed width is α, and the characters “ABCD” as the first line on the recording paper P are set on the corresponding line feed line L _{1 based} on the print start head position set. "EFG" on the second line after printing from the specified position
Is printed on the desired line L ₃ which is deviated from the corresponding line feed line L ₂ by β in order to print the character in the already printed frame P 1 at a well-balanced position. You may want to print from the position.
In such a case, first, after printing the character "ABCD" on the first line, the paper is automatically fed by the set line feed width α, and then the platen knob or line feed switch is operated to adjust the paper feed amount for a minute amount and visually check. thereby positioning the second row of the printing position of the "EFG" the desired printing line L ₃ crowded aligning the printing pins of the print head to the desired printing line L _3, the desired print start head position visually On the second line by aligning the position of the print pin of the print head with the desired print start head position while adjusting the print head by moving the print head based on the digit scale. Adjust the print start head position of "EFG" to the desired position, and after this adjustment, "EFG" on the second line.
Is being printed.

[0004]

[SUMMARY OF THE INVENTION However, when positioning the printing position "EFG" in the second line to the desired printing line L ₃ is, the positional relationship, such as the print head or the ribbon guide the printing pins of the print head Since it is not possible to visually recognize the position, it is the actual situation that the position of the print pin of the print head is predicted by using the position of the print head or the ribbon guide as a guide, and this position is adjusted to the desired print line L _3. the print position of "EFG" of the row can not be accurately positioned adjusted to a desired print line L _3.

Further, when the print start start position of the "EFG" on the second line is adjusted to a desired position, the desired print start start position corresponds to the digit scale provided at a position away from the desired print line L _3. Therefore, the desired print start start position cannot be accurately associated with the digit scale, and the print start start position cannot be accurately adjusted to the desired position.

When the "EFG" on the second line is printed, the print start start position is adjusted as described above, and the print start start position is set in advance, and the print start start position of the setting is set. There is a case where "EFG" on the second line is printed, but in this case, the start position of the printing start could not be confirmed before printing, which was inconvenient.

The main object of the present invention is to provide a serial printer print position adjusting method capable of accurately adjusting the print position to a desired print line deviated from the corresponding line feed line. An object of the present invention is to provide a serial printer print position adjustment method capable of confirming the print start start position of a setting on a desired print line and accurately adjusting the print start start position on a desired print line to a desired position. To do.

[0008]

In order to achieve the above object, the present invention provides a serial printer which prints by moving a head block including a print head and a ribbon guide in a direction orthogonal to the paper feed direction. , A print position adjusting method for adjusting the print position to a desired print line that is displaced from the corresponding line feed line, and from the paper feed position to any line feed line, the lower end position of the line feed line and the upper end of the ribbon guide. Determine the paper feed amount to the paper feed position that matches the position, feed the paper to the corresponding line feed line, then make a line feed by this paper feed amount, and then adjust the paper feed to print the upper end position of the ribbon guide as desired. It is characterized in that the print position is adjusted to the desired print line by aligning with the lower end position of the line and performing line feed back by the above-mentioned paper feed amount after aligning.

Further, in the above case, an index is attached to the ribbon guide, and the head block is moved and controlled after the normal line feed and before the reverse line feed, and the index is set at a preset print start head position. It is characterized by aligning.

Further, an index is attached to the ribbon guide, and the amount of movement of the head block until the print becomes possible by moving the head block from that state to an arbitrary position indicated by the index is determined, and after the above-described normal line feed. In addition, the head block is moved before the above-described reverse line feed, the index is aligned with the desired print start head position on the desired print line, and after the alignment, the head block is moved and controlled by the above movement amount to obtain the desired position. The feature is that the start position of the print start on the print line is adjusted to a desired position.

[0011]

According to the present invention, the print position can be accurately adjusted to the desired print line by using the upper end position of the visible ribbon guide as a guide.

Further, by attaching an index to the ribbon guide and aligning the index with the preset print start start position as described above, the print start start position on the desired print line can be set by the index before printing. I can confirm.

Further, an index is attached to the ribbon guide, and the amount of movement of the head block until the print becomes possible by moving the head block from that state to an arbitrary position pointed to by the index is determined, and printing is started as described above. If the head position is adjusted to the desired position, the print start head position on the desired print line can be accurately adjusted to the desired position using the index close to the desired print line as a guide.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, the configuration of the serial printer to which this embodiment is applied will be described. As shown in Figure 1,
A line feed motor (LF), which will be described later, is attached to the side plates 1 and 1 of the printer case.
A platen 2 rotatably driven by a motor is rotatably supported via a platen shaft 2a. A carriage guide 3 is horizontally mounted on the side plates 1 and 1 in parallel with the platen 2. The carriage guide 3 is provided with a carriage 4 capable of reciprocating in a direction orthogonal to the paper feeding direction (left-right direction in FIG. 1). The carriage 4 is driven by a carriage motor described later. A head block 5 is mounted on the carriage 4. The head block 5 includes a print head 6 and a ribbon guide 7. A recording paper P is wound around the platen 2 via a paper pressing roller (not shown).

FIG. 2 shows a system of a serial printer embodying the present invention. A ROM 9 and a RAM 10 are connected to a central processing unit 8 which is the heart of the system. The ROM 9 stores a control program for controlling the operation of the carriage 4, the platen 2, and the print head 6 and font data. The RAM 10 is configured to store the line feed width of the setting determined by the setting of the print format and the print start head position of the setting, and from the paper feed position to an arbitrary line feed line to the lower end position of the line feed line. The paper feed amount to the paper feed position where the upper end position of the ribbon guide 7 coincides is stored. The paper feed amount in this case will be described in detail. For example, from the paper feed position to the line feed line L ₂ shown in FIG. 1, the lower end line (base line) of the line feed line L ₂ shown in FIG. It is the paper feed amount _a until the upper end 7a of the sheet is aligned. The paper feed amount a in this case can be determined from the positional relationship between the line feed line and the ribbon guide 7 at the paper feed position to the line feed line, the line feed line width, and the like.
It varies depending on the setting of the width of the line feed line.

An LF motor drive circuit 11 and a carriage motor drive circuit 12 are connected to the central processing unit 8 and can drive the LF motor 13 and the carriage motor 14, respectively. The LF motor 13 can drive the platen 2 described above to rotate, and the carriage motor 14
Can move the carriage 4 back and forth.

LF motor 13 and carriage motor 1
Input of data for controlling 4 is performed by an adjustment switch 15 and an online switch 16 connected to the central processing unit 8 by mode switching.

As shown in FIG. 3, when the online switch 16 is pressed, the online mode and the offline mode are switched alternately, and when the adjust switch 15 is pressed in the offline mode, the mode is switched to the print alignment mode. If the online switch is pressed in the mode, the mode is switched to the online mode. This switching can be selectively switched from the print alignment mode to the online mode and the offline mode.

Next, a print position adjusting method for adjusting the print position to a desired print line deviated from the corresponding line feed line will be described with reference to the flowchart shown in FIG.
Here, as in the case of the related art, as shown in FIG. 11, the set line feed width is α, and the character "ABCD" is assigned to the corresponding line feed line L ₁ (center line) as the _first line. after printing from a predetermined position on the basis of the print start head position of the set above, printing of the second line of characters "EFG" on the desired printing line L ₃ which is displaced position by β from its corresponding carriage return line L ₂ It shall be.

First, after setting a predetermined print format, the mode is switched to the online mode, the head block 5 is moved, and the character "ABCD" is set as the _first line on the corresponding line feed line L ₁ to start the print start position. Printing from a predetermined position based on. When the printing of the first line is completed, the platen 2 is normally rotated and a predetermined line feed width α is set so that the printing position of the character “EFG” on the second line is located on the corresponding line feed line L _2.
Only a normal line feed is performed. At this time, as shown in FIG.
The corresponding line feed line L ₂ of the line is displaced from the desired print line L ₃ by a minute amount β. Therefore, the printing is performed at a position biased upward with respect to the frame P1 already printed on the recording paper P. Here, when the adjustment switch 15 is pressed, the online mode is switched to the print alignment mode (3
1).

When the printing position alignment mode is switched to, the value of the paper feed amount a is read from the RAM 10, the platen 2 is driven in the normal direction, and the line feed is performed by the paper feed amount a (3).
2). As a result, as shown in FIG. 5, the paper is fed to the position where the upper end 7a of the ribbon guide 7 and the lower end line of the corresponding line feed line L ₂ coincide with each other.

[0022] Then, desired printing the ribbon guide at the upper end 7a visually while driving the LF motor 13 by fine adjustment switch (not shown) as shown in FIG. 6 line L ₃
Adjust the line feed position by aligning with the bottom line of (3
3). Note that the paper feed amount during this period is "EFG" on the second line.
The position shift amount β between the corresponding line feed line L 2 of the character and the desired print line L ₃ is equal.

When the adjustment of the line feed position is completed (34), the line feed position is stored in the RAM 10 (35). Here, when the online switch is pressed down, the mode is switched to the online mode (see FIG. 3), the value of the paper feed amount a is read from the RAM 10, and the platen 2 is driven in the reverse direction to perform the reverse line feed by the paper feed amount a. Is performed (3
6).

As a result, as shown in FIG. 7, the printing position of the character "EFG" on the second line is changed to the corresponding line feed line L ₂
The position is adjusted to the desired print line L ₃ displaced from the position P by β, that is, the center of the frame P1. At this point, the print position adjustment is completed (37), and then the printing operation of the character "EFG" on the second line is started, whereby "EFG" on the second line is printed.
Is printed on the desired print line L ₃ , that is, in the center of the frame P1 from the set print start head position.

Therefore, in this embodiment, the "EF" of the second line is set with reference to the visible upper end position of the ribbon guide 7.
Character print position of G "can position correctly adjusted to the desired printing line L _3, thereby improving the adjustment accuracy of the print position to the desired printing line L _3.

Next, a second embodiment of the present invention will be described with reference to FIGS. 8 and 9. In this embodiment, an index 7b is attached near the left end of the ribbon guide 7 as shown in FIG.

The print position adjusting method in this case is shown in FIG.
A description will be given along the flow chart shown in FIG. First, based on the print start head position of the case and a similar manner set the letters "ABCD" on its corresponding carriage return line L ₁ as the first line of the above embodiment to print from a predetermined position, the first row of When the printing is completed, the platen 2 is normally rotated and a normal line feed is performed by a predetermined line feed width α so that the printing position of the character "EFG" on the second line is located on the corresponding line feed line L ₂ . Here, when the adjusting switch 15 is turned on to switch to the printing position adjusting mode (41), the paper feed amount a is fed to the normal line feed (42) in the same manner as in the above embodiment, and the ribbon guide 7 is moved by this paper feeding. The upper end 7a coincides with the lower end line of the corresponding line feed line L ₂ .

Next, the print start head position of the setting is read from the RAM 10 based on the data stored in the RAM 10, and the index 7b of the ribbon guide is determined based on this position data and the current moving position data of the head block 5. The amount of movement of the head block 5 up to the set print start start position is calculated (43), the carriage motor 14 is driven based on this calculated value, and the ribbon guide index 7b indicates the set print start start position. Head block to position 5
(45). That is, after the head block 5 is moved, the index 7b of the ribbon guide points to the set print start start position (see FIG. 9), and the index 7b can be used to confirm the print start start position of the character "EFG" on the second line. .

After that, the LF motor 13 is driven by a fine adjustment switch (not shown) in the same manner as in the above embodiment, and the upper end 7a of the ribbon guide is visually aligned with the lower end line of the desired print line L _{3 to set} the line feed position. When the line feed position is adjusted (46) and the line feed position is adjusted (47), the line feed position is stored in the RAM 10 (48).
Next, the value of the paper feed amount a is read from the RAM 10,
The platen 2 is driven in the reverse direction to carry out a reverse line feed by the paper feed amount a (49), whereby the printing position of the character "EFG" on the second line is displaced from the corresponding line feed line L ₂ by β. The print line L _{3 of} , that is, the position of the frame P 1 is adjusted. At this point, printing position adjustment is completed (5
0), then moved to the character of the printing operation of the "EFG" in the second row, thereby characters "EFG" in the second row on the desired printing line L _3, i.e. printing setting in the center of the frame P1 It is printed from the start position.

[0030] Thus, in this embodiment, not only the second line character printing position of "EFG" may accurately positioning the desired printing line L _3, the setting before printing by indicator 7b of the ribbon guide 7 It is convenient because you can check the print start position.

Next, a third embodiment of the present invention will be described with reference to FIG. In this embodiment, as in the second embodiment, the index 7b is provided near the left end of the ribbon guide 7, and the head block 5 can be moved from that state to any position pointed to by the index 7b for printing. The amount of movement c of the head block 5 (shown in FIG. 9) until it is stored in the RAM 10 is stored. In addition, the movement amount c of the head block 5
Varies depending on the positional relationship between the ribbon guide 7 and the print head 6, and the like.

A print position adjusting method in this case is shown in FIG.
This will be described with reference to the flowchart shown in FIG.

First, in the same manner as in each of the above embodiments, the character "ABCD" is printed as the _first line from a predetermined position on the corresponding line feed line L _{1 based} on the print start head position set. When the printing of the first line is completed, the platen 2 is rotated normally and a normal line feed is performed by a predetermined line feed width α so that the printing position of the character "EFG" on the second line is located on the corresponding line feed line L _2. Be seen. Here, set the adjust switch 15 to O.
When set to N and switched to print registration mode (5
1) In the same manner as in the above embodiment, the paper is fed by the paper feed amount a (52), and the paper is fed to the position where the upper end 7a of the ribbon guide 7 and the lower end line of the corresponding line feed line L ₂ coincide.

Then, while the carriage motor 14 is driven by a fine adjustment switch (not shown), the index 7 is visually checked.
The print start start position is adjusted by adjusting b to the desired print start start position (53).

When the adjustment of the print start head position is completed (54), the moving position of the head block 5 at this time is stored in the RAM.
10 (55), the moving amount c of the head block 5 is read from the RAM 10 thereafter, and the head block 5 moves by the moving amount c so that printing can be started from the desired print start head position indicated by the index 7b. (56).

After that, similarly to each of the above-described embodiments, the upper end 7a of the ribbon guide is visually aligned with the LF motor 13 by a fine adjustment switch (not shown) to align the lower end line of the desired print line L ₃ with the line feed position. Is adjusted (57), and when the adjustment of the line feed position is completed (58), the line feed position is stored in the RAM 10 (59).
Then, the value of the paper feed amount a is RA as in the above embodiment.
Read from M10, the platen 2 is driven to rotate in reverse by the paper feed a reverse line feed is performed (60), thereby, letter printing position of the second row "EFG" from its corresponding carriage return line L ₂ When the print mode is adjusted to the desired print line L ₃ displaced by β, and the alignment mode ends (61), the operation for printing the character "EFG" on the second line is started, and as a result, 2
On the printing line L ₃ characters of the desired "EFG" th row, that is, printed from desired printing start head position in the center of the frame P1.

[0037] Thus, in this embodiment, not only the second line character printing position of "EFG" may accurately positioning the desired printing line L _3, indicator 7b located proximate to the printing line L ₃ As a guide, the second line "EF
The print start head position of the character in the G "can position correctly adjusted to a desired position, thereby improving the adjustment accuracy of the print start head position of a desired printing line L _3.

[0038]

As described above, according to the present invention, the paper feed amount from the paper feed position to an arbitrary line feed line to the paper feed position where the lower end position of the line feed line and the upper end position of the ribbon guide match. After the paper has been fed to the corresponding line feed line, the paper feed amount is fed normally, and then the paper feed is adjusted to align the upper end position of the ribbon guide with the lower end position of the desired print line. The print position is adjusted to the desired print line by reverse line feed by the paper feed amount, so the print position can be accurately adjusted to the desired print line by using the upper end position of the visible ribbon guide as a guide. The accuracy of adjusting the print position on the printer is improved.

If the ribbon guide is provided with an index and the head block is moved and controlled after the above-described normal line feed and before the above-described reverse line feed, the index is aligned with the preset print start head position. , It is convenient to check the start position of the print start of the setting on the desired print line by using the index.

Further, an index is attached to the ribbon guide, and the amount of movement of the head block until the print becomes possible by moving the head block from that state to an arbitrary position pointed to by the index is determined. Before the line feed, move the head block and adjust it to align the index with the desired print start head position on the desired print line, and after the alignment, move the head block by the above movement amount to control the desired print line. If you adjust the start position of the print start to the desired position, you can accurately adjust the start position of the print start on the desired print line to the desired position by using the index close to the desired print line as a guide. The adjustment accuracy of the print start head position on the line is improved.

[Brief description of drawings]

FIG. 1 is a front view of a main part of a printer showing a positional relationship between a head block and a line feed position.

FIG. 2 is a block diagram showing a control system.

FIG. 3 is an explanatory diagram showing a mode switching operation.

FIG. 4 is a flow chart showing a first embodiment of a print position adjusting method according to the present invention.

FIG. 5 is a front view of relevant parts showing a state where the upper end position of the ribbon guide is aligned with the lower end position of the line feed line of the second line, corresponding to FIG. 1;

FIG. 6 is a front view of relevant parts showing a state where the upper end position of the ribbon guide is aligned with the lower end position of a desired print line, corresponding to FIG. 1;

FIG. 7 is a front view of relevant parts showing a state of paper feeding to a desired print line, corresponding to FIG.

FIG. 8 is a flowchart showing a second embodiment of the print position adjusting method according to the present invention.

FIG. 9 is a front view of a main part of the second embodiment, corresponding to FIG. 6;

FIG. 10 is a flowchart showing a third embodiment of the print position adjusting method according to the present invention.

FIG. 11 is an explanatory diagram showing a printing mode when the printing position is to be adjusted.

[Explanation of symbols]

 5 head block 6 print head 7 ribbon guide 7a upper end position 7b index a paper feed amount c movement amount

Claims (3)

[Claims] 1. A serial printer which prints by moving a head block including a print head and a ribbon guide in a direction orthogonal to a paper feed direction, and a desired print line whose print position is displaced from its corresponding line feed line. A print position adjusting method for position adjustment, wherein a paper feed amount is determined from a paper feed position to an arbitrary line feed line to a paper feed position where the lower end position of the line feed line and the upper end position of the ribbon guide match. After feeding the paper to the corresponding line feed line, make a normal line feed by the above-mentioned paper feed amount, and then adjust the paper feed to align the upper end position of the ribbon guide with the lower end position of the print line. A method for adjusting the print position of a serial printer, characterized in that the print position is adjusted to the print line by performing line feed by the amount. 2. The ribbon guide according to claim 1, wherein the head block is moved and controlled after the normal line feed and before the reverse line feed, and the print start leading position is preset. A print position adjusting method for a serial printer, characterized by aligning indexes. 3. The moving amount of the head block according to claim 1, wherein an index is attached to the ribbon guide and the head block is moved to an arbitrary position pointed to by the index from that state until printing becomes possible. After the normal line feed and before the reverse line feed, the head block is moved and adjusted to align the index with the desired print start head position on the print line, and after the alignment, the head block is A print position adjusting method for a serial printer, characterized in that the print start head position on the print line is adjusted to the desired position by controlling movement by a moving amount.