JP2001001584A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent carrying accuracy from lowering due to deterioration of a carrying component by an arrangement wherein a control means controls a printing means and a carrying means such that a carrying amount adjusting pattern is printed through a plurality of print operations and carrying operations between respective print operations. SOLUTION: A plurality of substantially cross patterns are printed in the direction perpendicular to the sheet carrying direction in each region A, B, C, D through a plurality of print operations and carrying operations between respective print operations under control of a control means. A substantially cross sample pattern comprising two L-shapes 60a, 60b directing oppositely is printed in the region A during first time printing and located at upper right of a recording sheet. Furthermore, a plurality of substantially cross patterns in each print region are located while shifting the interval 58 in the sheet carrying direction by a specified amount between the part 54 being printed during first time printing and a part 56 being printed during second time printing thus adjusting the carrying amount depending on the print results of a carrying amount adjusting pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a printing apparatus, and more particularly, to a printing apparatus having a printing medium conveyance amount adjusting unit.

[0002]

2. Description of the Related Art Conventionally, in a printing apparatus, as a means for improving the conveyance accuracy of a print medium, a method for improving the accuracy of parts, or a method for driving a conveyance means as described in JP-A-3-251472. 2. Description of the Related Art There are known methods for improving the configuration of a gear for transmitting a force and increasing the mounting accuracy of components.

[0003]

However, there is a problem that the cost of manufacturing the transport component is increased if the accuracy of the transport component is improved. Further, the prior art example has a problem that it is not possible to cope with a case where the transport accuracy of the print medium is reduced due to deterioration of the transport components over time.

The present invention has been made in view of the above-described circumstances, and has as its object to provide a printing apparatus capable of coping with a decrease in transport accuracy due to deterioration of transport components and capable of increasing transport accuracy without relying on the accuracy of transport components. And

[0005]

In order to achieve the above object, the printing means of the present invention prints on a printing medium, the conveying means conveys the printing medium, and the control means performs a plurality of printing operations. And the transport operation between each printing operation,
The printing unit and the transport unit are controlled so as to print the transport amount adjustment pattern. Since the carry amount adjustment pattern indicates the distance between the regions formed by each printing operation sandwiching the carry operation, the carry amount by the carrying means of the printing apparatus can be determined based on the distance.

According to a second aspect of the present invention, the control means controls the transport means so as to adjust the transport amount of the print medium based on a printing result of the transport amount adjustment pattern. As a result, the print medium is conveyed by an appropriate amount, so that good print results can be obtained.

According to a third aspect of the present invention, the control means includes:
The transport unit is controlled so as to adjust the transport amount for each area where the transport amount of the transport unit is different. As a result, an appropriate transport amount adjustment is performed for each area having a different transport amount.

According to a fourth aspect of the present invention, the control means controls to print the transport amount adjustment pattern again based on the corrected transport amount when the transport amount adjustment is completed. Is also good.

The control means may arrange a plurality of conveyance amount adjustment patterns having different distances between the regions formed by the respective printing operations with the conveyance operation interposed therebetween in the direction perpendicular to the paper conveyance direction. It may be controlled to print.

Further, the control means controls the printing means so as to print identification information for identifying each of the transport amount adjustment patterns corresponding to the transport amount adjustment pattern. May be used.

[0011] Further, the control means includes:
When printing the transport amount adjustment pattern, the printing unit may be controlled so as to print a transport amount adjustment sample pattern. Furthermore, the transport amount adjustment sample pattern may have a perfect cross shape.
The printing unit may be controlled so as to print the transport amount adjustment sample pattern in one printing operation.

According to a tenth aspect of the present invention, the control means calculates a correction value for adjusting the transport amount based on identification information of a transport amount adjustment pattern similar to the transport amount adjustment sample pattern. Adjust the transport amount with the value. Therefore, adjustment can be made by a simple method.

According to an eleventh aspect of the present invention, the control means outputs the information indicating that the inter-region distance of each of the plurality of transport amount adjustment patterns is smaller or wider than the inter-region distance of the transport amount adjustment sample pattern. A correction value for adjusting the transport amount is calculated based on the calculated correction value, and the transport amount is adjusted based on the calculated correction value. Even when there is no transport amount adjustment pattern similar to the transport amount adjustment sample pattern which is the basis of the adjustment according to the tenth aspect of the invention, the transport amount can be adjusted by further increasing the adjustment amount.

According to a tenth or eleventh aspect of the present invention, there may be further provided a storage means for storing the transported amount adjusted as in the twelfth aspect, and the storage means may be a storage means of the thirteenth aspect. As described above, the correction value may be stored for each type of print medium.

The invention according to claim 13 is the first invention.
As in 4, the control means may adjust the transport amount for each type of print medium.

According to a second aspect of the present invention, there is provided an image forming apparatus according to the fifteenth aspect, further comprising instruction means for instructing adjustment of the transport amount, wherein the control means instructs the adjustment of the transport amount by the instruction means. At this time, the conveyance amount may be adjusted.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a printing apparatus 44 according to the present embodiment. The printing device 44 is provided with a printing unit 26, a platen 24, and a feeding tray 28 as printing means. The platen 24 is located on the printing unit 38 side of the printing unit 26, and the feed tray 28 is located on the recording paper feed port 40 side of the platen 24. On the platen 24, a transport roller 12 and a pinch roller 14, a transport roller 16 and a spur 18, and a discharge roller 20 and a spur 22 as transport means are arranged in the direction of the arrow w which is the paper transport direction. is set up. The loading tray 3 on which the recording paper is loaded is placed on the feed tray 28.
4 are installed. A compression coil spring 36 that presses the loading table 34 in the loading direction of the recording paper 10 is provided between the bottom 28B of the feeding tray 28 and the loading table 34. The feed tray 28 has a feed port 42 connected to the platen 24 so that recording paper can be fed from the w direction to the junction between the transport roller 12 and the pinch roller 14. Feed tray 28
On the recording paper 10 side, a feed roller 30 that rotates about a feed roller shaft 32 while maintaining a constant interval from the recording paper 10 is provided.

Next, the printing area of the recording paper shown in FIG. 2 will be described.

The recording paper 10 is classified into four areas according to the difference in the number of locations sandwiched by the transporting means. That is, up to the position of the printing section 38, the area A which is nipped and conveyed only by the conveying roller 12 and the pinch roller 14
, Transport roller 12, pinch roller 14, discharge roller 1
6 and an area B to be conveyed while being held between two places of the spur 18,
An area C which is nipped and conveyed at three locations, that is, a transport roller 12 and a pinch roller 14, a discharge roller 16 and a spur 18, a discharge roller 20 and a spur 22, a discharge roller 16 and a spur 18, There is a region D which is nipped and conveyed by the discharge roller 20 and the spur 22. Each area is different in the number of locations pinched by the transport rollers and pinch rollers, or the discharge rollers and spurs, so even if the rotation amount of each roller is the same, it may be caused by slippage of the recording paper. The amount by which the paper is transported varies. Therefore, it is necessary to adjust the transport amount for each area.

Next, the printing of the transport amount adjustment pattern shown in FIG. 3 will be described. This is printed on the recording paper 10 by the printing device 44, and forms the basis of the conveyance amount adjustment. In the present embodiment, a substantially cruciform pattern shown in FIG. 3A is printed as the conveyance amount adjustment pattern. This substantially cruciform pattern is printed separately in two scans in the paper transport direction and the vertical direction. After printing the portion 54 to be printed for the first time, the recording paper 10 is transported by a predetermined amount, and Is printed and formed. A plurality of the substantially cross-shaped patterns are printed on one sheet of recording paper 10, and an identification symbol 50 for identifying the substantially cross-shaped pattern is printed below each of the substantially cross-shaped patterns. You. The identification symbol 50 includes an alphabet (A to D) for identifying the area (A to D) and a number indicating the position from the left end in the same area. In addition,
In the present embodiment, the identification symbols are indicated by alphabets and numbers. However, the present invention is not limited thereto, and any identification symbols may be used as long as they can identify a plurality of substantially cross-shaped patterns.

FIG. 3B shows an example of a print result of the carry amount adjustment pattern. Here, a plurality of substantially cross-shaped patterns are printed in the area A, the area B, the area C, and the area D in the direction perpendicular to the paper transport direction. For example, in the area A, the pattern from the left end is sequentially printed. A plurality of substantially cross-shaped patterns are printed corresponding to the identification symbols A-1, A-2, A-3 #. Also, as shown in FIG. 3C, a substantially cross-shaped sample pattern 60 composed of two L-shaped characters 60a and 60b in opposite directions is printed by the first printing in the area A. And is located on the upper right of the recording paper 10. If the substantially cross-shaped sample pattern 60 is printed in one scan, it may be printed in the second printing of the substantially cross-shaped pattern. Alternatively, the information may be printed on a recording sheet in advance separately from the printing of the substantially cross-shaped pattern.

The plurality of substantially cross-shaped patterns for each printing area are arranged by shifting a space 58 between the first printed portion 54 and the second printed portion 56 in the paper transport direction by a predetermined amount. ing. In FIG. 3B, the substantially cross-shaped pattern at the left end has the smallest interval in the paper transport direction, and is printed wider toward the right side.

Here, the relationship between the printing result of the substantially cross-shaped pattern and the sheet conveyance amount will be described. If the paper transport amount is appropriate, the print result of the substantially cross-shaped pattern is as shown in FIG.
As shown in the figure, the third substantially cross-shaped pattern A from the left end
-3 is similar to the substantially cross-shaped sample pattern 60. However, when the paper transport amount is larger than the proper time, the printing result of the substantially cross-shaped pattern is, as shown in FIG.
The interval in the paper transport direction of the third substantially cross-shaped pattern A-3 from the left end is wider than that of the substantially cross-shaped sample pattern 60, and is substantially similar to the substantially cross-shaped sample pattern 60. The cross-shaped pattern is a substantially cross-shaped pattern A-2. As the paper transport amount increases, a substantially cross-shaped pattern similar to the substantially cross-shaped sample pattern 60 is formed.
Moves to the left. If the paper transport amount is smaller than the appropriate time, the printing result of the substantially cross-shaped pattern is
As shown in FIG. 4C, the interval in the paper transport direction of the third substantially cross-shaped pattern A-3 from the left end is narrower than that of the substantially cross-shaped sample pattern 60, and the substantially cross-shaped sample is used. A substantially cross-shaped pattern similar to the pattern 60 is a substantially cross-shaped pattern A-4. Then, as the paper transport amount decreases, the substantially cross-shaped pattern similar to the substantially cross-shaped sample pattern 60 moves to the right.

Next, the correction value table 96 shown in FIG. 5A and the carry amount table 98 shown in FIG. 5B will be described.
The correction value table 96 stores a carry amount correction value corresponding to the position of the approximate cross shape pattern similar to the approximate cross shape sample pattern from the left end of the sheet. As described above, as the sheet conveyance amount becomes larger than the appropriate time (see FIG. 4B), the substantially cross-shaped sample pattern becomes larger.
The cross-shaped pattern resembling the pattern shifts from the center to the left (A-3 → A-2 → A-1). Accordingly, a carry amount correction value for reducing the paper carry amount is stored in correspondence with the number (2, 1) corresponding to the identification symbol. Similarly,
As the paper conveyance amount becomes smaller than the appropriate amount (FIG. 4)
(C), the cross-shaped pattern similar to the cross-shaped sample pattern shifts from the center to the right (A-).
3 → A-4 → A-5). Accordingly, a carry amount correction value for increasing the paper carry amount is stored in correspondence with the number (4, 5) corresponding to the identification symbol. However, the correction values corresponding to numbers 0 and 6 represent the correction values α corresponding to the case where there is no substantially cross-shaped pattern similar to the substantially cross-shaped sample pattern 60, and correspond to the number 0. The correction value is larger in the minus direction than the correction value corresponding to number 1, and the correction value corresponding to number 6 is larger in the plus direction than the correction value corresponding to number 5. In addition, the transport amount table 98 as a storage unit stores one sheet transport amount in each of the above-described areas in accordance with the type of paper. Each of the correction value table 96 and the carry amount table 98 includes a microcomputer (hereinafter referred to as “microcomputer”) 70.
Is stored in the RAM 78.

Next, a control system of the printing apparatus 44 will be described with reference to FIG. The transport motor 72 for driving the transport roller 12 and the feed rollers 16 and 20 includes a driver 7
4 and is connected to a microcomputer 70 as control means, and operates under the control of the microcomputer 70. The printing unit 26 is connected to the microcomputer 70,
It operates under the control of. A personal computer (hereinafter, referred to as a “PC”) 84 is connected to the microcomputer 70, and a keyboard 88 and a mouse 90 are connected to the PC 84. The personal computer 84, the keyboard 88 and the mouse 90 constitute input means. The display 86 of the personal computer 84 displays a transport amount adjustment screen 95 as shown in FIG. 7 according to a predetermined command. The transport amount adjustment screen 95 includes an identification code list table 92 and a paper type list table 94.
It consists of. The identification symbol list table 92 displays identification symbols for specifying a substantially cross-shaped pattern for each area, and the sheet type list 94 indicates the type of recording paper. By selecting an appropriate identification symbol and paper type from the display, the paper transport amount of each area is calculated as described later.

Next, the paper transport operation of the printing apparatus will be described.

A plurality of recording sheets 10 are stacked on the stacking table 34 of the feed tray 28. Feeding by printing command
The rotation of the roller 30 causes the cam (not shown) fixed on the feed roller shaft 32 to release the pressing of the loading table 34, and the loading roller 34 is moved by the reaction force of the compression coil spring 36. It moves to the side. The recording paper 10 loaded on the loading table 34 comes into contact with the feed roller 30 and is conveyed in the direction of arrow w by the rotation of the feed roller 30. The feeding tray 28 is provided with a separation claw (not shown), and separates the recording paper 10 conveyed by the feeding roller 30 from the second and subsequent sheets.

The recording paper 10 conveyed by the feeding roller 30 is nipped only by the conveying roller 12 and the pinch roller 14 and conveyed to the printing section 38. Printing unit 38
The recording paper 10 conveyed to the printing unit 26 is maintained at a predetermined distance from the printing unit 26 by the platen,
Is printed by scanning. The printed recording paper 10 is conveyed by a predetermined amount, and printing is performed again by scanning of the printing unit 26 in the same manner as described above.
The recording paper 1 on which the conveyance and the printing are repeated a plurality of times as described above
0 is conveyed to the discharge roller 16 and the spur 18, and the transfer roller 12, the pinch roller 14, and the discharge roller 1
6 and the spur 18, the conveyance and the printing are repeated. Recording paper 10 in which transport and printing have been repeated multiple times
Is conveyed to a discharge roller 20 and a spur 22, a conveyance roller 12 and a pinch roller 14, a discharge roller 16 and a spur 18,
The sheet is nipped between the discharge roller 20 and the spur 22 and the conveyance and printing are repeated. Thereafter, the rear end of the recording paper 10 passes between the transport roller 12 and the pinch roller 14, and the recording paper 10 is discharged by the discharge roller 16 and the spur 18, and the discharge roller 20 and the spur 22 by two places. The sheet is nipped, and transport and printing are repeated. Thereafter, the trailing end of the recording paper 10 is
6 and the spur 18, the discharge roller 20 and the spur 22
And is transported outside the printing apparatus.

Next, the procedure for calculating the paper transport amount will be described with reference to FIG.

A user or an operator who adjusts the transport amount in the manufacturing process sets a recording sheet on the feed tray 28 and inputs a transport amount calculation process start instruction by a predetermined operation using the keyboard 88 or the mouse 90. Thus, the conveyance amount calculation processing of FIG. 8 starts.

In step 100, a transport amount adjustment screen 95 is displayed. In step 102, the operator inputs the set paper type using the paper type list 94. If there is such an input, the above-described transport amount adjustment pattern and transport amount adjustment sample pattern are printed in step 104. The operator selects a cross-shaped pattern similar to the substantially cross-shaped sample pattern from among the substantially cross-shaped patterns in each of the printed areas,
The identification symbol is input for each of the entire areas. For example, when the printing result of the conveyance amount adjustment pattern is that of FIG. 9, in the area A of the recording paper 10, the substantially cross-shaped pattern of the identification symbol A-2 is changed to the substantially cross-shaped sample pattern.
It has a similar shape to 60. Therefore, the operator can select the A-A from the transport amount adjustment screen 95 of the personal computer 84 in FIG.
Select 2 and enter. Similarly, in the area B, B-
2 and C-1 in the area C, and D-4 in the area D in the same manner.

However, the interval in the paper feed direction of all the substantially cross-shaped patterns in the area is substantially the same as the cross-shaped sample pattern.
If there is no analogous shape, the identification code number 6 is selected. For example, if the printing result of the conveyance amount adjustment pattern is that shown in FIG. 10, all the substantially cross-shaped patterns in the area D have the portions printed at the first time and the portions printed at the second time. Since the interval in the paper feed direction is narrower than that of the sample pattern 60 having a substantially cross shape, D-6 is selected and input.

If the interval in the paper feed direction of all the substantially cross-shaped patterns in the area is wider than that of the substantially cross-shaped sample pattern 60 and there is no similar shape, the number 0 is used. Select the identification symbol of. For example, when the printing result of the conveyance amount adjustment pattern is that shown in FIG. 11, all the substantially cross-shaped patterns in the area C are divided into the first printed portion and the second printed portion. Since the paper feed direction interval is wider than that of the substantially cross-shaped sample pattern 60, C-0 is selected and input.

In step 106, it is determined whether or not an identification symbol has been input for all areas. If the identification symbol has been input, the variable H is initialized to 0 in step 108.
The variable H represents the area of the recording paper, and the variable H is 1, 2, 3,.
As areas become 4, areas A, B, C, and D are sequentially identified.
In step 110, the variable H is incremented by one, and in step 112, the correction value α and the transport amount V of the area H are fetched. The correction value α is a correction value corresponding to each identification symbol,
The data is fetched from the correction value table 96 based on the data input in step 106. The transport amount V is a transport amount corresponding to the area and the paper type.
Imported from 8.

In step 114, the carry amount V in the area H is corrected by the correction value α. At step 116, it is determined whether or not the variable H is larger than the total number H0 of the areas A to D.
If it is not> H0, since the carry amount has not been corrected in all the areas, the process returns to step 110, and steps 112 and 114 are repeated. If H> H0, the transport amount has been corrected in all the areas. At step 118, the variable H is initialized, and at step 120, the variable H is incremented by one. In step 122, whether the identification symbol of the input area H is the number 0 or 6, that is, the intervals in the paper feed direction of the substantially cross-shaped pattern in the specific area are all substantially cross-shaped sample patterns. It is determined whether or not there is no similar shape that is narrower or wider than 60. If it is 0 or 6, the process returns to step 104 and the following processing is repeated. That is, if all of the substantially cross-shaped patterns in at least one area are not similar to the substantially cross-shaped sample pattern 60, a similar-shaped pattern is printed and an identification symbol of the substantially cross-shaped pattern is printed. Until is input, the correction of the carry amount V is continued.

The identification code of the input area H is number 0
Or if it is not 6, H> H0 in step 124
It is determined whether or not H> H0.
Returning to step 20, step 122 is repeated. If H> H0, the process ends.

In the present embodiment, the substantially cross-shaped sample pattern 60 has one L-shaped 6-shaped pattern as shown in FIG.
0a and the other L-shaped part 60b are spaced apart by the width X in the sheet conveyance direction, but as shown in FIG. 12B, the distance between one L-shaped part 60a and the other L-shaped part 60b is increased. Can be eliminated to form a perfect cross.

By forming a complete cross shape in this way, a substantially cross shape pattern similar to the substantially cross shape sample pattern 60 (in this case, a perfect cross shape sample pattern) is
The straight line in the scanning direction of one L-shaped portion 60a and the other L-shaped portion 60b forms a straight line, and the difference from a substantially cross-shaped pattern other than a similar shape that does not form a straight line (causes a shift in the sheet conveying direction) It becomes clear. Therefore, it is possible to easily visually determine which of the plurality of printed substantially cross-shaped patterns is similar to the substantially cross-shaped sample pattern 60. For example, when the printing result of the conveyance amount adjustment pattern as shown in FIG. 13 is obtained, the substantially cross-shaped pattern similar to the substantially cross-shaped sample pattern 60 is represented by A
-1, B-1, C-3, and D-3.

The adjustment of the transport amount can be performed when the printing apparatus is shipped, or when the printing apparatus is used after the printing apparatus is shipped. The recording paper transport amount of each area is calculated by the above procedure, and the transport amount for each paper type is stored.

The printing process is performed based on the transport amount stored as described above. The procedure will be described with reference to FIGS.

When the paper type is selected and operated with a print start button (not shown) of the printing device 44, the printing process of FIG. 14 starts. At step 132, the microcomputer 70 issues a sheet discharge command, and the conveyance of the recording sheet is started as described above. At step 134, it is determined whether or not the print portion is the area A. If the print portion is the area A, the processing of the area A is started in step 136. Area A
Is performed according to the procedure shown in FIG. In step 144, the transport amount V of the recording paper is fetched from the transport amount table 98, and printing is performed in step 146. Step 14
In step S8, the sheet is transported by the transport amount Va, and
It is determined whether or not the area A has ended. If the area A has not been completed, the process returns to step 146 and returns to step 14
Repeat step 8. When the area A has been completed, FIG.
In step 138, the processing of the area B is started. Area B
Is performed in the same manner as the processing of the area A.
The processing of the area C is performed at 40, and the processing of the area D is performed at step 142. When the processing of the area D is completed, this processing ends.

As described above, according to the present embodiment, even if the conveyance accuracy of the recording paper is lowered due to the deterioration of the conveyance parts over time or the precision of the conveyance parts, the conveyance amount can be adjusted to be satisfactory. High transfer accuracy. Further, since the conveyance amount adjustment is performed for each area corresponding to the difference in the sheet conveyance means, the variation in the conveyance amount due to the difference in the sheet conveyance means can be adjusted, and good conveyance accuracy can be obtained. Further, since the conveyance amount adjustment is performed for each paper type,
Variations in the transport amount due to differences in paper types can also be adjusted, and good transport accuracy can be obtained.

In the present embodiment, a serial recording type printing apparatus is used in which a recording head is scanned to perform one-line recording and a recording sheet is conveyed for each line recording. However, the present invention is not limited to this. Instead, it is also possible to use a line recording type printing apparatus that uses a recording head in which recording data is arranged in a line in the scanning direction and conveys a recording sheet every line recording.

In this embodiment, the substantially cross-shaped pattern is printed in two printing operations. However, the present invention is not limited to this, and the substantially cross-shaped pattern is printed in three or more printing operations. -Can be printed.

The correction value is a relative value, and the printing of the carry amount adjustment pattern and the adjustment of the carry amount are repeated until the proper carry amount is obtained. It is also possible to set a correction value corresponding to the selected transport amount adjustment pattern so that an appropriate transport amount is obtained by one adjustment.

[0047]

As described above, according to the present invention,
Since the transport amount can be adjusted according to the print result of the transport amount adjustment pattern, it is possible to cope with a decrease in transport accuracy due to deterioration of the transport component, and it is possible to improve the transport accuracy without depending on the accuracy of the transport component. Has the effect.

[Brief description of the drawings]

FIG. 1 is a sectional view of a printing apparatus.

FIG. 2 is a diagram illustrating a print area classification of recording paper.

FIG. 3 shows a conveyance amount measurement pattern and a printing result of the conveyance amount measurement pattern.

FIG. 4 is an example of a print result of a conveyance amount adjustment pattern in an area A;

FIG. 5 shows a correction value table and a carry amount table.

FIG. 6 is a block diagram of a control unit for driving a conveyance motor of the printing apparatus and calculating a conveyance amount.

FIG. 7 is a conveyance amount adjustment screen.

FIG. 8 is a flowchart showing a transport amount calculation processing routine.

FIG. 9 is an example of a print result of a conveyance amount measurement pattern.

FIG. 10 is an example of a print result of a conveyance amount measurement pattern.

FIG. 11 is an example of a print result of a conveyance amount measurement pattern.

FIG. 12 is an example of a transport amount measurement sample pattern.

FIG. 13 is an example of a print result of a conveyance amount measurement pattern.

FIG. 14 is a flowchart illustrating a print processing routine.

FIG. 15 is a flowchart showing a part of a print processing routine.

[Explanation of symbols]

12 Conveyance Roller (Conveying Means) 16 Discharge Roller (Conveying Means) 20 Discharge Roller (Conveying Means) 26 Printing Unit (Printing Means) 50 Substantially Cross Shape Pattern (Conveyance Adjustment Pattern) 60 Substantially Cross Shape Sample Pattern ( Transport amount adjustment sample pattern) 70 Microcomputer (control means) 84 Personal computer (input means) 88 Keyboard (input means) 90 Mouse (input means) 98 Transport amount table (storage means)

Continued on front page F term (reference) 2C058 AB15 AE02 AF15 AF20 GA02 GB20 GB36 GB40 2C059 AA26 AA37 AA39 AA57 AA64 2C061 AQ03 KK04 KK18 KK26 KK28 KK31 3F049 AA10 DA12 EA22 LA06 LA07 LB03

Claims (15)

[Claims] A printing unit configured to print on a print medium; a transfer unit configured to transfer the print medium; and a plurality of print operations and a transfer operation performed between the print operations. And a control means for controlling the transport means. 2. The printing apparatus according to claim 1, wherein the control unit controls the transport unit to adjust a transport amount of a print medium based on a print result of the transport amount adjustment pattern. 3. The control means according to claim 1, wherein
3. The printing apparatus according to claim 2, wherein the control unit controls the transport unit to adjust the transport amount for each area where the transport amount is different. 4. The control device according to claim 2, wherein when the adjustment of the transport amount is completed, the control unit performs control so that the transport amount adjustment pattern is printed again based on the adjusted transport amount. The printing device according to claim 3. 5. The control unit controls a plurality of transport amount adjustment patterns, each having a different distance between regions formed by each printing operation sandwiching the transport operation, to be printed in a direction perpendicular to the paper transport direction. The printing apparatus according to claim 1, wherein the printing is performed. 6. The transport amount adjusting pattern, comprising:
6. The printing apparatus according to claim 5, wherein a printing unit is controlled so as to print identification information for identifying each of the transport amount adjustment patterns in response to each of the printing patterns. 7. The printing apparatus according to claim 5, wherein the control unit controls the printing unit to print a transport amount adjustment sample pattern when printing the transport amount adjustment pattern. Printing device. 8. The printing apparatus according to claim 7, wherein the transport amount adjustment sample pattern has a perfect cross shape. 9. The printing apparatus according to claim 7, wherein the control unit controls the printing unit to print the transport amount adjustment sample pattern in one printing operation. 10. The control unit calculates a correction value for adjusting the transport amount based on identification information of a transport amount adjustment pattern similar to the transport amount adjustment sample pattern, and calculates the transport amount based on the calculated correction value. 10. The printing apparatus according to claim 7, wherein the printing apparatus is adjusted. 11. The method according to claim 11, wherein the control unit is configured to control the transport distance based on information indicating that the inter-region distance of each of the plurality of transport distance adjustment patterns is smaller or wider than the inter-region distance of the transport distance adjustment sample pattern. The printing apparatus according to any one of claims 7 to 9, wherein a correction value for adjusting the amount is calculated, and the transport amount is adjusted based on the calculated correction value. 12. The printing apparatus according to claim 10, further comprising storage means for storing the adjusted transport amount. 13. The apparatus according to claim 1, wherein the storage unit stores the correction value for each type of print medium.
2. The printing device according to 2. 14. The printing apparatus according to claim 13, wherein the control unit adjusts the transport amount for each type of print medium. 15. An apparatus according to claim 2, further comprising instruction means for instructing adjustment of the transport amount, wherein said control means adjusts the transport amount when the instruction means instructs the adjustment of the transport amount. The printing device according to claim 14.