JP2003114771A - Printer driver program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable marginless printing to be executed even in case of use with an application program in which size of subject paper to be printed is limited. SOLUTION: A printer driver 55 sets an enlarged image range as enlargement to paper size corresponding to width of roll paper R by prescribed quantity. Enlargement magnification of the enlarged image range to the paper size is determined, and resolution of a printer is multiplied by the enlargement magnification. The printer driver 55 notifies the paper size and resolution after multiplication to an application 50. Picture data expressing an image by picture elements of the notified resolution and having corresponding size to the notified paper size are received from the application 50. After the received picture data are enlarged to the enlarged magnification, commands are provided for execution of printing by a printer.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer.
To control the printer connected to that computer.
Printer Driver Pro to execute borderless printing
About gram. [0002] In recent years, ink jet printers
Technological development to achieve borderless printing is ongoing.
You. One such technology is inkjet pre-printing.
An ink receiving hole is formed in the platen of the printer.
When the edge of the printing paper is positioned on the ink receiving hole
At the edge of the printing paper
Apply ink drops but do not touch the edge of the printing paper
Platelets are received by receiving ink drops
Technology to print the edges of printing paper without polluting the surface
Have been. When performing this borderless printing, the printer
Is the inclination of the paper with respect to the scan direction of the print header (skew).
-) To avoid triangular margins caused by
A virtual area slightly larger than the size
Image area). Conventionally, the setting of this extended print area has been
Displayed on the display according to the data driver program.
In the properties dialog
If you have selected to execute paper size and borderless printing,
If this is done according to this printer driver program
I was Specifically, the printer driver program
If you select to perform borderless printing, the selected
Have a certain width between the front and rear edges and the left and right edges of the paper size
Enlarged image having a shape similar to the selected paper
Image area, and use the size of this enlarged image area
Application to edit drawing data as paper size
Notify the program. The application that received this notification
The application program sends the notified paper size (enlarged image).
Image data of the same size as the
And pass it to the printer driver program. Like this
The printer receives the drawing data that is larger than the paper size.
The driver program is required for the drawing data.
By performing certain processing, the above image area
Command for printing with
Send to printer. The pudding that received this command
Prints according to commands in synchronization with paper movement.
(Printing on the virtual enlarged image area)
As described above, as described above, the ink deviated from the outer edge of the paper
Borderless printing on paper while flying the ink into the ink receiving hole
It does. [0004] However, the application
Some application programs use a certain size paper.
To edit drawing data to print only on
is there. For example, an application program for postcard printing
Lamb is a postcard size (148mm x 100mm) paper
Or do not accept. Such application programs
One size larger than the acceptable paper size
Notify large enlarged image area size as paper size
Even this application program expands
The image area size corresponds to the paper that you can accept
Cannot be recognized as something. As a result,
Application program refuses to generate drawing data
The problem that printing cannot be performed.
Was. [0005] The present invention has been made in view of such problems.
The challenge is to reduce the size of the print target paper.
Drawing data from a limited application program
Even if you receive the data and execute the printing process,
Connected to the computer against the computer
To control the printer to perform borderless printing
To provide a printer driver program that can
It is. [0006] The present invention solves the above problems.
In order to decide, the following measures were adopted. That is, in the present invention
According to the printer driver program that it is running
Computer specified by the received print command
Connected to a printer that prints the resulting image on paper.
Receiving resolution and size when
The desired image at the resolution at the resolution
An application program that creates the rendered drawing data
It is effective when running a ram. That is,
This printer driver program is compatible with the computer.
Then, roll paper is selected as the paper and the
Edge of the standard size range
If an instruction to print is input,
Set an image area where the size is enlarged at a predetermined magnification.
The predetermined magnification to a resolution at which the printer can print.
Execute the multiplication operation, and
The obtained resolution is notified to the application.
Let Further, according to the notified size and resolution,
Represented by drawing data created by the application
The image to be enlarged according to the predetermined magnification,
The enlarged image is placed in the image area including the paper.
Print frame that instructs the printer to print a page
Command and create a print command
Data. A computer according to a printer driver program
Computer receives the print command sent by the computer.
The linter encloses the paper according to this print command
Perform image printing on the virtual image area
You. As a result, borderless printing is performed on the sheet. According to the present invention, an application program
The ram is notified of the actual paper size to be printed.
So, if this application program has a specific size
Even if you are targeting only this paper,
The size of the printer itself from the printer driver program.
Since the user is notified, the subsequent processing can be continued. Only
Even in that case the application program creates
Drawing data is an image of the size corresponding to the actual paper
Despite that, the resolution is
To the resolution at which the data can be printed (ie, the actual magnification).
Multiplied by the image area size to the paper size)
It is a detailed one. Therefore, this drawing data is received.
The received printer driver draws according to the specified magnification.
Enlarging the image represented by the data
The resolution of the image is lower than that of the printer
There is no. That is, in the prior art, the application
Image generated by the program
The driver program itself can get it. [0009] The printer operates in accordance with the above command.
When printing an image on roll paper, the length of the roll
In the area longer than the specified paper size (image
Area is the same length as the area)
It becomes. Even in this case, the printer may
Auto cutter that cuts roll paper so that
If you have it, there is no problem. In addition, the operator
May be used to cut the roll paper. In addition, the printer driver
When Eva creates a print command,
In the longitudinal direction of the roll paper rather than the paper size in the image
After clipping the protruding part in the corresponding direction
To print the image after clipping.
May be created. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a printer according to the present invention will be described.
Application program using the driver program.
A computer that prints an image edited on paper
An embodiment of a computer system will be described with reference to the drawings.
I do. (Configuration of Computer System) FIG.
Block diagram showing a schematic configuration of a computer system according to
It is. As shown in FIG.
The computer system includes a printer host 10 and this printer.
Based on the print command output from the
Inkjet printer 30 that prints on paper
It is composed. The printer host 10 is a host
The main body 11 is connected to the host main body 1 respectively.
A display device 12 and a keyboard 13
Have been. The host body 11 is a general personal computer.
Computers connected to each other via a bus B
PU20, ROM21, RAM22, display controller
Troller 23, keyboard controller 24, flexi
Bull disk drive 25, hard disk drive 2
6, CD-ROM drive 27, printer interface
Configuration from the network 28 and the network interface 29
Have been. The CPU 20 executes various programs to execute
Central for executing control and data processing of each part of host body 1
Processing device. The ROM 21 stores various data and various programs.
This is the memory that stores the gram. The RAM 22 stores
Memory for temporarily storing seed data and various programs
It is. The display controller 23 is a display
A function of controlling the device 12; Keyboard control
The roller 24 has a function of controlling the keyboard 13.
You. Flexible disk drive 25 is flexible
Write and read data to and from disk 16
It is a device for performing. The hard disk drive 26
Solid-state storage device that stores seed data and various programs
It is. The CD-ROM drive 27 is a CD-ROM 1
7 is a device for reading data and programs from the memory 7. Pre
Interface 28 is a cable connected to the printer
I / O device that sends and receives data to and from
Specifically, Centronics interface and US
B interface. Network interface
The network 29 manages data transmission / reception to / from public lines and LAN.
Communication device, specifically a MODEM or LAN
And the like. The printer 30 includes a monitor 37 and a printing mechanism.
40 and a print controller 31 for controlling these components.
Have been. The print controller 31 executes various programs
CPU 32 and various data and programs are stored
ROM33, various data and various programs
Controls the RAM 34 and the monitor 37, which are temporarily stored.
Monitor controller 35 and interface 36
And The printing mechanism 40 includes a print head 41 and the print head 41.
A carriage 42 for moving the print head 41;
Platen 43 disposed at a position opposite to pad 41
And a roll paper holding the roll paper R so that it can be pulled out.
Holder 44 and the roll paper holder 44
Paper roll to pull out the roll paper R and feed it onto the platen 43.
Rollers 45a and 45b and the printed printing paper are discharged.
The discharge rollers 46a and 46b and the discharged roll paper R are
Receiving tray 47 and feed rollers 45a and 45b.
And a sensor 48 for detecting the driving amount. As shown in FIG. 2, the platen 43
A plurality of ink receivers extending in a direction parallel to the paper direction F
The openings 43c, 43d, 43e, 43f and the sheet feeding direction F
A plurality of inputs extending in a direction (scanning direction)
The horizontal receiving openings 43a and 43b are formed. I
Link receiving vertical openings 43c, 43d, 43e, 43f
Indicates that the right and left ends of the B4 size print roll paper R are true.
A pair of ink receivers arranged to pass over
The left and right ends of the opening 43c and the A4 size print roll paper R
A pair of inns arranged to pass directly above
43d and the both ends of the B5 size printing
A pair of inns arranged to pass directly above
Post opening 43e and postcard size (width: 100mm)
So that both ends of the printing roll paper R pass right above each other.
And a pair of ink receiving openings 43f arranged in
You. A plurality of ink receiving lateral openings 43a and 43b are provided.
The paper-feeding-side ink-receiving opening 4 arranged on the paper-feeding side
3a and a discharge side ink receiving opening arranged on the discharge side
43b. Within these Sekiguchi,
Sorbent is contained. The print head 41 has each color, specifically,
C (cyan), M (magenta), Y (yellow), K
(Black), c (light cyan), m (light magenta)
6) Nozzles 41a that eject each color ink
Are provided side by side in the scanning direction. In addition, the same color
The 64 knurls 41a are provided side by side in the paper feeding direction.
You. A frame showing the host body 11 in FIG.
Is stored in the hard disk drive 26
Various programs (application programs, operating
Printing system program, printer driver pro
CPU 20 sequentially reads out the
The correlation of each function realized by executing
It is represented as a block diagram. Below, for convenience, the application
Function realized according to the application program
Application 50 "and the operating system
The function realized according to the program is called "OS52".
Described and realized according to the printer driver program
This function is described as “printer driver 55”. Less than,
These functions will be described. An application executed on the OS 52
There are various types in 50, but here, the back of the postcard
Images (photos, pictures, characters, etc.) to be printed on
And edit it as a postcard size (148 x 100 mm)
One having the function of printing on paper and the same
It has a function to print an image by dividing it into multiple pages
Things matter. The printer driver 55 further includes an application
The document 51 created in the application 50
Spooler 61 that expands this into spool file 62
Or the document stored in the spool file 62
The drawing data forming the image into RGB image data
Render renderer 63 and RGB image data in CM
Convert to YKcm binarized image data
A halftone processing unit 64 for performing halftone processing;
Printer 30 interprets MYKcm binary image data
Command conversion unit 65 that converts the print command
Transmission / reception unit 66 for transmitting the print command to the printer 30
And the display device 12 and the keyboard at the time of printing
User interface that serves as an interface with
Border 58 for setting printing conditions for borderless printing
A printing condition setting unit 56 and an integrated pipe for managing them in an integrated manner.
Control unit 60 and a print condition file in which print conditions and the like are stored
It is composed of functions such as 59. The print controller 31 shown in FIG.
Stored in the ROM 33 in the print control device 31 in the frame shown
CPU 32 reads and executes the program
Functions (specifically,
Units 76) and the print control unit 70)
It is represented as The transmission / reception unit 76 is a printer host 1
This function accepts print commands from 0. Ma
In addition, the print control unit 70 controls the printing
A function for controlling the printing mechanism 40 based on a command or the like.
You. (Operation of Computer System) Next, according to the present embodiment,
Computer system has postcard size on roll paper R
The borderless printing of the image of
The operation when printing a series of images continuously on top,
explain. Prior to starting printing, an operator
Is for postcard size using application 50
Images to be printed on paper or long paper (multiple paper
On a sheet of paper equivalent to a series of standard paper sheets)
Edit the image to be done. When the creation of this image is completed, the operation
Data is displayed on the display 12
In the image editing window (not shown)
Operate the "Print" button. Then, through OS52
Then, the printer driver 55 is activated (the CPU 20
Therefore, execution is started). FIG. 6 and FIG. 7 show flowcharts.
As described above, the activated printer driver 55
In step 001, the function of the user interface 58 is used.
Using the properties dialog shown in FIG.
Screen) is displayed on the display 12. User in
Interface 58 is connected to the keyboard 13 by the operator.
Corresponding to each item in the properties dialog.
Set the system. Specifically, for example, the property die
In the “Paper Source” text box 100 in the alog,
The paper type (roll) selected from the pull-down menu
Paper, A4 paper, B4 paper, etc.). Also, "Left
Left and right borders are not included in the right borderless check box 101.
Set a check mark to indicate that is selected or
To release. Also, a “paper feeding method” text box 100
When "Roll paper" R is set in
The option selected in the “Roll paper option” column 102
Option button ("Long mode" button 103 or
"Mode" button 104) to indicate that it is selected
A black point is set and is currently held in the roll paper holder 44.
Paper size that can be cut from roll paper R
When the roll paper R of the size
Paper size text box 10
Set within 6. In the next step S002, the printer driver
55 utilizes the function of the user interface 58,
"OK" button 105 in property dialog is operated
Wait for it to be done. Then, the “OK” button 105 is operated.
When done, the properties dialog at that time
Check the contents set in the “Paper Source” text
"Roll paper" R is set in box 100
In the check box 101
Check mark is set and “Standard mode” button
If a black point is set in the button 104, the process proceeds to S
003, in the “paper feeding method” text box 100
“Roll paper” R is set and “Right and left
Check box in check box 101
A black dot is set on the “Long mode” button 103
If is set, the process proceeds to S104, and
Otherwise, the process proceeds to S013. In S003, the printer driver 55
Extended printing using the function of the borderless printing condition setting unit 56
Area (predetermined enlargement to be kept at a minimum around the paper size)
Area). For example, paper size
Postcard size (148 x 100m) in the text box 106
When m) is set, as shown in FIG.
The amount of expansion at the front end in the paper feeding direction F is 3 mm, and the amount of expansion at the rear end is
The large amount is 5 mm, and the expansion amount on each side is 2.5 mm.
You. As shown in the table of FIG.
It is predetermined for each size. In FIG. 11, "Pa
The "perH" column indicates the vertical width in paper size, and "PaperW"
Column indicates the width in paper size, and "Ttrim '" column is
Indicates the amount of edge enlargement, the "Btrim '" column indicates the amount of rear edge enlargement,
The "Ltrim '" column shows the left end enlargement amount, and the "Rtrim'" column shows the right end
Indicates the amount of enlargement. As is clear from FIG.
The minimum amount of enlargement to be secured during printing depends on the enlargement direction (front,
The amount differs depending on the direction (backward, left and right). In FIG.
The table is registered in advance in the print condition file 59,
The borderless printing condition setting unit 56 stores the printing condition file 5
9, an extended print area is set. In the next S004, the printer driver 55
Is set in the paper size text box 106
Calculates the enlargement magnification of the extended print area for the paper size
I do. Specifically, the vertical width of the paper size (“Pape
rH ”) of the expanded print area (“ Paper ”in FIG. 11).
H ′ ”) (“ Hrate ”in FIG. 11)
For the width of paper size ("PaperW" in Fig. 11)
Percentage of the width of the extended print area ("PaperW '" in Fig. 11)
(“Wrate” in FIG. 11) and calculate the larger decimal point
The value obtained by rounding the bottom is the magnification (see “Rat
e)). Also, the printer driver 55
Represents the calculated enlargement ratio with the printing mechanism 40 of the printer 30.
By multiplying the printing resolution by
The resolution to be notified to the application 50 is calculated. For example, sign
Enlarges when the original resolution of the printing mechanism 40 is 360 dpi
If the magnification is calculated to be 105%, the application
The resolution to be notified to 50 is 360 × 1.05 = 378 dpi. In the next S005, the printer driver 55
Is a paper size text box as shown in FIG.
The width and height of the paper size set in 106 are set to S0
With the size enlarged according to the enlargement magnification calculated in 04
The enlarged image area to be set is the extension mark set in S003.
Circumscribe the printing area, and
Make settings so that the In the next S006, the printer driver 55
Is printed by the operator via the keyboard 13.
Wait for line instructions to be entered. Then, the print execution instruction
When input, in S007, the paper size text
Paper size and S0 set in box 106
The resolution calculated as the one to be notified in 04
) Is notified to the application 50.
The application 50 is notified of the image being edited.
Pixels are represented by pixels corresponding to the
A printing document having a size corresponding to the known size
And convert this document to a printer driver
Pass to 55. Document to be printed from application 50
The printer driver 55 that has received the
Using the functions of 61, you can sp
To a rule file 62. In the next step S008, the printer driver 55
Uses the function of the renderer 63 to store the spool file 6
Drawing that forms the document to be printed, which is expanded to 2.
The image data is converted into RGB image data, and S004
RGB image data according to the magnification calculated in
Data of the enlarged RGB image data in S005.
Expands to the enlarged image area set in. In the next S009, the printer driver 55
Uses the function of the halftone processing unit 64 to convert RGB
Convert image data to CMYKcm binarized image data
Convert and convert CMYKcm binarized image
The halftone processing is performed on the data. In the next step S010, the printer driver 55
Uses the function of the command conversion unit 65 to generate CMYKcm
The binarized image data is printed on a mark that can be interpreted by the printer 30.
Convert to printing command. FIG. 8 shows the function of this command conversion unit 65.
Is a flowchart showing a command conversion process executed by
is there. In this command conversion process, in the first S101
The command conversion unit 65 converts the various print conditions into commands.
Do. In the next step S102, the command conversion section 65
From the CMYKcm binarized image data, the roll paper R
Before the original paper size in the direction corresponding to the longitudinal direction
Protruding part (usually the part corresponding to the front end side enlargement amount
And the portion corresponding to the amount of expansion on the rear end side)
(delete. This is the original paper size for roll paper R.
If you want to make the image of the image borderless,
Corresponding to the part of the image
Ink to the ink receiving lateral openings 43a and 43b
Because they can't do that. This is the case for roll paper R.
The reason why clipping is possible is that roll paper R
If skew occurs, the previously printed image
The images printed on each other are skewed to each other
This is because no problem arises because of the inclination. In the next S103, the command conversion unit 65
Supply the front end of the image data after clipping.
The position on the paper feed side among the plurality of nozzles 41a arranged in the paper direction F
The print command for printing only with a fixed number of nozzles is
create. In the next step S104, the command conversion section 65
Divide the middle part of the image data into lines of a certain width
Then, each line is printed by all the nozzles 41a.
Create a print command for In the next step S105, the command conversion unit 66
Supply the rear end of the image data after clipping.
A portion on the paper discharge side of the plurality of nozzles 41a arranged in the paper direction F
The print command for printing only with a fixed number of nozzles is
create. When the above command conversion is completed, the printer
The driver 55 transmits and receives data in S011 in FIG.
A series of print frames created using the function of the
Command to the printer 30 to end a series of processes.
You. In S011, sent from printer driver 55
The printer 30 that has received the received print command
Execute the following print processing according to the print command.
You. That is, the print control unit 70 of the printer 30
While driving the rollers 46a, 46b and 46a, 46b,
The print head 41 is driven to start printing. Real truth
According to the embodiment, when creating a print command, S10
2 is smaller than the paper size in the image data
The part protruding to the front end side is clipped
Prints the front end created in S103
Print according to the first print command for printing
Immediately print the leading edge of the target image on roll paper R
can do. At this time, the previous page is placed on the roll paper R.
The image to be printed may already be printed
However, the trailing end of the previous page is the copy created in S105.
Print only with the nozzle 41a on the paper discharge side according to the command
On the other hand, the leading end of the page being printed is S10
Nozzle 41 on the paper feed side according to the command created in step 3
a), both images overlap.
Never. The middle part of the image to be printed
(Excluding the rear end) is created in step 104
All the print head 41 based on the print command
It is printed by the chisel 41a. Right and left direction of roll paper R
For the entire image to be printed.
Virtual R that extends further to the side than the left and right ends of the paper R
Since it is performed for the large image area, the left side of the roll paper R
The right edge is reliably printed without borders. In addition, each command
The horizontal print area printed by the
For simplicity, it may be limited to the range of the extended print area. So
In the case of, outside the extended print area in the print command
A null value is set in the portion corresponding to. And the most
Later, to print the trailing edge created in S105
If you print according to the print command of
The rear end portion of the print is printed on the roll paper R. The above
After that, the image to be printed is
Since the print command for printing does not follow, the printer
Completes printing at that point. Then, the image to be printed on the next page is
When printing, follow the newly received print command.
Then, printing is continued from that position on the roll paper R.
On the other hand, if there is no image to print on the next page,
In this case, the paper feed rollers 46a, 46b and 46a, 46b
Is further driven to eject the printed portion of the roll paper R.
The sheet is transported to the paper tray 47. Then, an auto car (not shown)
Printer or manual operation of the printed image
By cutting the front and rear edges of the
A print result of the size can be obtained. On the other hand, in S014 (FIG. 7), the printer
The driver 55 uses the function of the borderless printing condition setting unit 56
Then, in exactly the same manner as in S003, the extended print area
Set. In the next step S015, the printer driver 55
Is the extension mark set in S003 as shown in FIG.
Circumscribe the printing area and be symmetrical to the left, right, up and down
Is set in the paper size text box 106
Set an enlarged image area similar to the paper size
I do. In the next step S016, the printer driver 55
Is printed by the operator via the keyboard 13.
Wait for line instructions to be entered. Then, the print execution instruction
When input, in S017, it is set in S015.
The size of the enlarged image area
Attaching the original resolution of the printing mechanism 40 of the printer 30,
The application 50 is notified. Application 50
Is equivalent to the resolution being notified
Represented in pixels and equivalent to the notified size
Into a print document with the size
The document is passed to the printer driver 55. Apriquet
Receiving the document to be printed from
The linter driver 55 utilizes the function of the spooler 61.
The received document to the spool file 62
expand. In the next S018, the printer driver 55
Uses the function of the renderer 63 to store the spool file 6
Drawing that forms the document to be printed, which is expanded to 2.
The image data is converted to RGB image data, and the converted
The RGB image data is stored in the enlarged image set in S015.
Expand to image area. However, in this case,
The image data received from the application 50
This has already been expanded by application 50
In S018, unlike the case of S008, the image
No enlargement of page data. In the next step S109, the printer driver 55
Uses the function of the halftone processing unit 64 to convert RGB
Convert image data to CMYKcm binarized image data
Convert and convert CMYKcm binarized image
The halftone processing is performed on the data. In the next S110, the printer driver 55
Uses the function of the command conversion unit 65 to generate CMYKcm
The binarized image data is printed on a mark that can be interpreted by the printer 30.
Convert to printing command. FIG. 9 shows the function of this command conversion section 65.
Is a flowchart showing a command conversion process executed by
is there. In the first S201 in this command processing,
The command conversion unit 65 converts the various print conditions into commands.
Do. In the next S202, the command conversion unit 65
The front end of the image data is
Printing with only a predetermined number of nozzles on the paper feed side among the nozzles 41a
Create a print command to cause In the next step S104, the command conversion section 65
Divide the middle part of the image data into lines of a certain width
Then, each line is printed by all the nozzles 41a.
Create a print command for In the next step S105, the command conversion unit 66
The rear end of the image data is
Printing is performed with only a predetermined number of nozzles on the paper discharge side among the nozzles 41a
Create a print command to cause When the above command conversion is completed, the printer
In step S021 in FIG. 7, the driver 55
A series of print frames created using the function of the
Command to the printer 30 to end a series of processes.
You. In S021, sent from printer driver 55
The printer 30 that has received the received print command
Execute the following print processing according to the print command.
You. That is, the print control unit 70 of the printer 30
While driving the rollers 46a, 46b and 46a, 46b,
The print head 41 is driven to start printing. this
In this case, the front end of the image created in S202 is
Print according to the first print command for printing.
For example, the top part of the enlarged print target image (the original
(The leading edge of the portion protruding to the front end side from the paper size)
Is immediately printed on the roll paper R. At this time, roll
The print target image of the previous page has already been printed on paper R.
However, at the end of the previous page,
Nozzle 41a on the discharge side according to the command created in
Only the end of the page being printed while being printed by
The end portion is supplied according to the command created in S202.
Since it is printed only by the paper side nozzle 41a,
Both images are continuous without overlapping each other. printing
Middle part of target image (part excluding front end and rear end)
Minute) is the print command created in step 203.
On the basis of all the nozzles 41a of the print head 41.
Printed. As a result, with respect to the horizontal direction of the roll paper R,
Roll paper R over the entire area of the image to be printed.
A virtual enlarged image that extends further to the side than the left and right edges of
The right and left edges of the roll paper R
Are reliably printed without borders. And finally, S2
Print frame for printing the trailing edge created in 04
If you print according to the
Minute (the part of the paper that protrudes
The rear end portion) is printed on the roll paper R. On the next page
As described above, the continuous
Is printed. Therefore, the same image has multiple pages
Even if the document is divided into
Images on a single roll of paper R without loss of image
A series of images are continuously printed borderless. As described above, according to the present embodiment, the application
Application 50 prints only paper of the specified size.
The application, even if it is not
Printed without being aware of the increase in image size
On the driver 55 side, without reducing the resolution,
The image can be enlarged for printing. Only
When printing on roll paper, the printer driver 5
Clip the front and rear edges of the enlarged image in step 5
Can be fixed on the same roll paper R.
Prints images of multiple pages continuously without borders.
Can be The application 50 has a predetermined size.
If you accept paper other than
It has a function to print an image divided into multiple pages
Printer driver 55, the application
Notify the image size after enlargement to the application 50
As a result, the image can be expanded on the application 50 side.
Can be great. In this case, the printer
On the bar 50 side, the image is not further enlarged,
No clipping. As a result, the same image
Printing of multiple pages on the same roll paper R
And then execute, the original long image on the roll paper R
Images can be printed. According to the present invention, the size of the printing target paper
Application programs that restrict
Printer driver, even if the printer is running
Connected to the computer
To control the printer to perform borderless printing
be able to.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram illustrating a configuration of a computer system according to an embodiment of the present invention. FIG. 2 is a plan view illustrating a configuration around a platen of a printer. FIG. FIG. 4 is a side view showing the configuration around the platen of the printer. FIG. 5 is a block diagram showing the correlation between functions realized in the host body and the printer control device. FIG. 6 is controlled by a printer driver. FIG. 7 is a flowchart showing the contents of control by the printer driver. FIG. 8 is a flowchart showing the contents of the command conversion process executed in S010 of FIG. 6. FIG. 9 is executed in S020 of FIG. FIG. 10 is a flowchart showing the contents of the command conversion process. FIG. 10 is a diagram showing a property dialog displayed in S001 of FIG. 1 A table listing expansion amounts and expansion ratios for each paper size. [FIG. 12] An explanatory diagram showing a relationship between a printing paper size, an expanded printing area, and an enlarged image area. [Description of reference numerals] 10 ... Printer host 11 ... Host body 20 CPU 21 ROM 22 RAM 30 Printer 40 Printing mechanism 41 Print head 41a Nozzle 43 Platen 50 Application 51 Document 55 Printer driver

Claims (1)

Claims: 1. A computer which can be connected to a printer which prints an image specified by a received print command on a sheet of paper. When executing an application program for creating drawing data expressing a desired image in the size in question, roll paper is selected as the paper and no border is provided for a predetermined size range of the roll paper in a predetermined length. When an instruction to print is input, an image area obtained by enlarging the standard size at a predetermined magnification is set, and an operation of multiplying the resolution printable by the printer by the predetermined magnification is performed. Notifying the application of the size and the resolution obtained by the calculation, Printing the image represented by the drawing data created by the application according to the size and resolution according to the predetermined magnification, and printing the enlarged image in the image area including the paper. A print command to instruct the printer, and send the generated print command to the printer.