JP2007203703A - Image forming apparatus and printing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent printing unintended by a user from being performed in a printer. <P>SOLUTION: This printer, which is equipped with a printer engine 30 for applying printing processing to printing paper fed from a paper feeding part with placed printing paper, comprises: an operation panel 20 which receives the setting of a paper size from the user; and a controller 10 which acquires image data from outside, which generates print data on the paper size, which is received by the operation panel 20, through the use of the image data, and which makes the printer engine 30 perform printing processing by using the generated print data. When generating the print data, the controller 10 feeds the printing paper, placed on the paper feeding part, to the printer engine 30, makes the paper size of the fed printing paper detected by a sensor which is provided in the printer engine 30, compares the detected paper size with the paper size received by the operation panel 20, and presents a difference between them to the user when they are different from each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technology of a printing apparatus, and more particularly to a technology of a printing process when a paper size input by a user to the printing apparatus is different from a paper size actually set in the printing apparatus.

  Conventionally, when the paper size set in the printer by the user is larger than the paper size actually fed to the printer, the print data is printed so as not to protrude from the printing paper fed to the printer. A technique is known (for example, Patent Document 1). The printer of Patent Document 1 performs printing after performing mask processing on print data generated with a paper size set by the user in the printer so as to fit within the paper size actually fed.

Japanese Patent Laid-Open No. 2005-305833

  However, Patent Document 1 has the following problems. Specifically, the printer generates print data with a paper size set by the user. In Patent Document 1, when the paper size set by the user is larger than the paper size actually fed to the printer, the generated print data is automatically masked and printed. That is, the print result printed according to Patent Document 1 is obtained by cutting out a part of the print data generated with the paper size set by the user. Therefore, the print result may not be what the user intended. For example, in patent document 1, the data of the part which the user wanted to print may be cut out and printed. As a result, printing paper and ink (or toner) are unnecessarily consumed.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent printing that is not intended by the user from being performed in the printing apparatus.

  In order to solve the above-described problem, the first aspect of the present invention is applied to a printing apparatus including a printing mechanism that performs printing processing on printing paper fed from a paper feeding unit on which printing paper is placed. . Here, the printing mechanism is provided with a sensor for detecting the paper size of the fed printing paper.

  Then, the printing apparatus obtains image data from an input unit that accepts a paper size setting from a user, and uses the obtained image data to obtain print data of the paper size accepted by the input unit. And a control unit that causes the printing mechanism to execute a printing process on the fed printing paper using the generated print data. When the control unit generates the print data, The printing paper placed on the paper feeding unit is fed to the printing mechanism, the paper size of the printing paper fed to the sensor is detected, the paper size of the printing paper detected by the sensor, The paper size received by the input means is compared, and if the two are different as a result of the comparison, the user is notified that the set paper size is different from the pre-feed paper size.

Further, the printing apparatus includes a display panel for displaying various data, and the control unit includes:
A display screen indicating that the set paper size is different from the pre-feed paper size may be displayed on the display panel.

  Further, in the printing apparatus, when the control unit presents that the set paper size is different from the fed paper size, printing is also performed for the user in a state where the paper size is different. When prompting the user to select whether or not to continue the process, and accepting a selection from the user to continue the print process, the print mechanism is controlled so that the generated print data When printing processing is performed so that the printing paper is fed into the printing paper fed to the printing mechanism, and the user selects the user not to continue the printing processing via the input unit, It is also possible to prompt the user to change the printing paper placed on the printing paper to the printing paper of the paper size accepted by the input means.

  The second aspect of the present invention is applied to a printing method performed by a printing apparatus including a printing mechanism that performs printing processing on printing paper fed from a paper feeding unit on which printing paper is placed. Here, the printing mechanism is provided with a sensor for detecting the paper size of the fed printing paper.

  The printing device receives a paper size setting from a user, acquires image data from the outside, generates print data of the received paper size using the acquired image data, and And a control step for causing the printing mechanism to execute a printing process on the fed print paper using the generated print data, and the control step generates the print data when the print data is generated. The printing paper placed on the printer is fed to the printing mechanism, the paper size of the printing paper fed to the sensor is detected, and the paper size of the printing paper detected by the sensor and the setting are received. The paper size is compared, and if both are different as a result of the comparison, the user is notified that the paper size for which the setting has been accepted and the pre-feed paper size are different.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, a schematic configuration of a printing apparatus to which an embodiment of the present invention is applied will be described with reference to FIG.

  FIG. 1 is a schematic configuration diagram of a printing apparatus to which an embodiment of the present invention is applied. The printing apparatus according to the present embodiment is a so-called direct printer that performs printing by directly connecting to a portable recording medium (memory card) 45 without a host computer. The printing apparatus also has a function of executing printing with a digital camera as a host. The printing apparatus has a function of connecting to a host computer and executing printing in response to a control command from a printer driver of the host computer.

  As illustrated, the printing apparatus includes a controller 10 that performs various processes for printing, an operation panel 20, a printer engine 30 that executes printing, and a memory card reading apparatus 40.

  The controller 10 includes a CPU 101 as a main control device, a ROM 102 in which programs and the like are recorded, a RAM 103 that temporarily stores data and the like as a main memory, an interface 105 that controls input and output with the operation panel 20 and the like, And a system bus 106 serving as a communication path between the devices. For example, the controller 10 reads the image data stored in the memory card 45 via the memory card reading device 40, generates print data from the read image data, and outputs the print data to the printer engine 30. Note that an ASIC (Application Specific Integrated Circuit) designed to perform each process exclusively can be used for the interface 105.

  The operation panel 20 includes a liquid crystal display, operation buttons, and the like, and serves as a user interface that accepts selection of an image file to be printed or a print execution request from a user.

  The printer engine 30 includes a printing mechanism including a print head, a paper supply / discharge mechanism that supplies and discharges print media such as print paper, and performs print processing on the print media using print data from the controller 10. . The paper supply / discharge mechanism has a paper feed tray on which printing paper is mounted, and supplies and discharges the mounted printing paper. The printing mechanism is provided with a paper width detection sensor 31 for detecting the size (paper width) of the printing paper fed from the paper supply / discharge mechanism. Data indicating the paper size detected by the paper width detection sensor 31 is notified to the controller 10. In the present embodiment, the specific configuration of the printer engine 30 is not particularly limited. For example, if the printing apparatus is an inkjet printer, the printer engine 30 includes a printing mechanism that includes a print head that ejects ink, a carriage drive mechanism that drives a carriage on which the print head is mounted, and a paper supply / discharge mechanism. And a paper feed / discharge mechanism for feeding paper.

  The memory card reading device 40 reads the image data recorded on the memory card 45 and transmits it to the controller 10. Further, in accordance with an instruction from the controller 10, the image data recorded on the memory card 45 is deleted or rewritten.

  Next, a characteristic functional configuration of the controller 10 will be described with reference to the block diagram of FIG.

  FIG. 2 is a block diagram illustrating an example of a functional configuration of the controller 10.

  As illustrated, the controller 10 includes a user interface unit 110, a printer engine control unit 111, and a paper size table storage unit 112 that stores a “paper size table 300 (see FIG. 3)” to be described later.

  Each functional unit can be realized by software or hardware. For example, the above-described ROM 102 stores programs (user interface program, printer engine control program) for realizing the functions of the user interface unit 110 and the printer engine control unit 112. The following functions of the user interface unit 110 are realized by the CPU 101 executing a user interface program stored in the ROM 102. The function of the printer engine control unit 111 is realized by the CPU 101 executing a printer engine control program stored in the ROM 102. The function of the paper size table storage unit 112 is realized by the ROM 102 or the RAM 103. Hereinafter, each functional unit will be described.

  The user interface unit 110 analyzes an input request from the user via the operation panel 20, and performs a process of instructing each functional unit so that a process according to the request is performed. For example, in the case of a print request, the user performs operations such as selecting an image file to be printed, setting the “paper size” of the print paper, and executing a print request on the operation panel 20. Then, the user interface unit 110 receives a request such as selection of an image file to be printed, setting of a “paper size” of printing paper, and a print execution request via the operation panel 20, and outputs them to the printer engine control unit 111 To do. Note that the user interface unit 110 performs a process of displaying various information on the display of the operation panel 20 in order to facilitate the user's operation.

  The printer engine control unit 111 reads image data from the memory card 45 or the digital camera in accordance with a request from the user received via the user interface unit 110. The printer engine control unit 111 generates print data for printing using the read image data in accordance with a request received from the user. Then, the printer engine control unit 111 controls the printer engine 30 so that printing is executed based on the generated print data.

  In addition, when the printer engine control unit 111 of the present embodiment generates print data, the “paper size of the fed printing paper detected by the paper width detection sensor 31” and the “paper size set by the user (the operation panel by the user) The paper size set by operating 20) ”is compared. The printer engine control unit 111 notifies the user interface unit 110 of the fact that, as a result of the comparison, both are different from each other by a predetermined value or more. Then, the user interface unit 110 presents to the user that the “paper size of the fed printing paper” is different from the “paper size set by the user”, and whether or not to continue the printing process as it is. Encourage judgment.

  The paper size set by the user is not a numerical value (for example, a numerical value such as “89 mm”) indicating the actual size of the printing paper, but a name (for example, “L size”, “A4”, etc.) that specifies the paper size. ). Therefore, the printer engine control unit 111 needs to convert “paper size set by the user” into a numerical value indicating an actual dimension (hereinafter referred to as “actual size”). In the present embodiment, the printer engine control unit 111 converts the “paper size set by the user” to “actual size” using the paper size table 300 stored in the paper size table storage unit 112. An example of the paper size table 300 stored in the paper size table storage unit 112 is shown in FIG.

  FIG. 3 is a diagram schematically illustrating the data configuration of the paper size table of the present embodiment.

  As shown in the figure, the paper size table 300 includes a fold 301 for registering “paper size” and a field 302 for registering “actual size” to form one record. The “paper size” is for the user to set the printing apparatus by operating the operation panel 20, for example, “L size”, “A4”, “postcard”, and the like. “Actual size” is a numerical value indicating the actual size of the printing paper of “paper size” registered in the field 301. For example, in the uppermost record shown in the figure, “L” is registered in the field 301 and “89 mm” is registered in the field 302. This record indicates that the size of the “L size” is “89 mm”.

  Subsequently, the flow of printing processing performed by the printing apparatus according to the present embodiment will be described separately for processing by the printer engine control unit 111 and processing by the user interface unit 110. Hereinafter, a case where the printing apparatus directly reads image data from the memory card 45 and prints the image data will be described as an example.

  FIG. 4 is a flowchart of a printing process performed by the printer engine control unit 111 according to this embodiment. Here, it is assumed that printing paper is set in a paper feed tray (not shown) of the paper feed / discharge mechanism of the printer engine 30.

  First, the printer engine control unit 111 receives a print request from the user via the user interface unit 110 and starts a printing process (S10). Specifically, the printer engine control unit 111 receives a print request for image data stored in the memory card 45 via the user interface unit 110. The print request from the user includes designation of image data to be printed and a paper size of the image data to be printed (“paper size set by the user”). The printer engine control unit 111 reads the designated image data from the memory card 45, and generates print data with “paper size set by the user” using the read image data.

  Next, the printer engine control unit 111 uses the paper size table 300 stored in the paper size table storage unit 112, and the “real size” paper corresponding to the “paper size set by the user” received in S10. The width (A) is obtained (S11). For example, when the “paper size set by the user” is “L”, the printer engine control unit 111 registers “L” in the field 301 from among the records registered in the paper size table 300. Selected records. Then, the printer engine control unit 111 extracts “actual size” data registered in the field 302 from the selected record as the paper width (A). For example, when the “paper size set by the user” is “L”, “89 mm” is obtained as the paper width (A).

  Next, the printer engine control unit 111 controls the printer engine 30 to feed the printing paper set in the paper tray (S12). Further, the printer engine control unit 111 controls the printer engine 30 to detect the paper width (B) of the fed printing paper on the paper width detection sensor 31 provided in the printer engine 30.

  Next, the printer engine control unit 111 acquires the paper width (B) of the printing paper fed from the paper width detection sensor 31 (S13), and proceeds to the processing of S14.

  In S14, the printer engine control unit 111 compares the “paper width (A)” obtained in S11 with the “paper width (B)” obtained in S13. That is, in this step, the paper size (paper width (A)) set by the user from the operation panel 20 is compared with the paper size (paper width (B)) of the printing paper fed to the printing apparatus. If the “paper width (A)” and “paper width (B)” are substantially the same, the printer engine control unit 111 compares “paper width (A)” with “paper width (B)”. If the difference from "" is smaller than the predetermined value, the process proceeds to S15. On the other hand, if the difference between “paper width (A)” and “paper width (B)” is equal to or larger than a predetermined value, the printer engine control unit 111 proceeds to S16. In the present embodiment, the “predetermined value” for determining whether or not “paper width (A)” and “paper width (B)” are substantially the same is not particularly limited. The predetermined value may be set by the user.

  In S15, the printer engine control unit 111 outputs the print data generated in S10 to the printer engine 30. The printer engine 30 receives print data from the printer engine control unit 111, and performs print processing on the print paper fed in S12.

  Next, the process of S16 that is performed when it is determined in S14 that “paper width (A)” and “paper width (B)” are not substantially the same will be described. In S16, the printer engine control unit 111 notifies the user interface unit 110 that the “paper size set by the user” is different from the “paper size of the printing paper fed to the printing apparatus”, and the process proceeds to S17. .

  In S17, the printer engine control unit 111 stands by until receiving a notification from the user interface unit 110. When the notification is received, the process proceeds to S18.

  In step S18, the printer engine control unit 111 determines whether the notification received in step S17 is a notification requesting to continue printing from the user. If the notification is a request to continue printing, the process proceeds to step S19. If it is not the notification which requires continuation, it will progress to S20.

  In S19, the printer engine control unit 111 controls the printer engine 30 to execute print processing so that the print data generated in S10 fits on the print paper fed in S12. Note that the process of S19 is only described below because it can be realized by existing technology.

  Specifically, when the “paper size set by the user (paper width (A))” is larger than “paper size of the printing paper fed to the printing apparatus (paper width (B))”, the printer engine control unit 111 cuts out the print data generated in S10 so that the print data fits within the “paper width (B) of print paper”, and then controls the printer engine 30 to perform printing. By doing so, it is possible to prevent application of ink to a place where ink should not be applied.

  On the other hand, when the “paper size (paper width (A)) set by the user” is smaller than “paper size (paper width (B)) of the printing paper fed to the printing apparatus”, the printer engine control unit 111 The print data generated in S10 is output to the printer engine 30 as it is, and the printer engine 30 is caused to execute print processing. In this case, since the print data is generated with the paper size set by the user, a print result with a large margin is obtained.

  Next, the process of S20 that is performed when the notification received in S17 is not a notification requesting to continue printing will be described. In step S20, the printer engine control unit 111 determines whether the notification received in step S17 is a “paper change notification”. The “paper change notification” is information that is notified when the user interface unit 110 receives data indicating that the paper in the paper feed tray has been changed from the user. If it is “paper change notification”, the printer engine control unit 111 returns to the process of S12. On the other hand, if the notification received in S17 is not “paper change notification”, the printer engine control unit 111 returns to the processing in S17.

  Next, processing by the user interface unit 110 will be described with reference to FIG.

  FIG. 5 is a flowchart of processing of the user interface unit of the present embodiment. 4, in S16 of FIG. 4, the printer engine control unit 111 instructs the user interface unit 110 to “paper size set by the user” and “sheet of printing paper fed to the printing apparatus”. This is performed when a notification that the “size” is different (hereinafter simply referred to as “notification that the paper is different”) is given.

  First, when the user interface unit 110 receives “notification that paper is different” from the printer engine control unit 111 (S100), the process proceeds to S101.

  In S101, the user interface unit 110 displays a screen (confirmation screen A) 600 for determining “whether or not to continue the printing process” illustrated in FIG. 6 on the display of the operation unit panel 20, for example.

  FIG. 6 is a diagram showing an example of a confirmation screen for confirming whether or not to continue the printing process. As shown in the drawing, in the confirmation screen A600, an area 601 for presenting that the paper size set by the user in the printing apparatus is different from the paper size fed to the printing apparatus, An area 602 for accepting an input of “?” Is provided. It should be noted that the area 601 presents that “printing as it is does not perform the printing intended by the user” to give the user attention. The area 602 is provided with a button 603 for accepting a request to continue printing and a button 604 for accepting a request not to continue printing. When the user continues printing without changing the printing paper, the user operates various operation switches on the operation panel 20 and selects the button 603 on the confirmation screen A600. The user selects the button 604 when printing by replacing the printing paper in the paper tray.

  Returning to FIG. 5, the description will be continued. When the user interface unit 110 receives selection of the button 603 on the confirmation screen A600 via the operation panel 20, that is, when the user interface 110 receives a request to continue printing from the user, the process proceeds to S103. If the user interface unit 110 receives selection of the button 604 on the confirmation screen A600 via the operation panel 20, that is, if the user interface unit 110 receives a request not to continue printing from the user, the process proceeds to S104 (S102).

  In step S103, the user interface unit 110 notifies the printer engine control unit 111 that a print continuation request is requested, and ends the process. Note that when the user interface unit 110 notifies the user of the request to continue printing in S103, the processes in S18 to S19 in FIG. 4 described above are performed.

  Next, the processing of S104 that is performed when a request from the user not to continue printing is received in S102 will be described. In step S104, the user interface unit 110 acquires “paper size set by the user” from the printer engine control unit 111, and the process advances to step S105.

  In S105, the user interface unit 110 generates image data that prompts the user to change the printing paper using the “paper size set by the user” acquired in S104, and uses the image data to display the display on the operation panel 20. A confirmation screen B700 is displayed. For example, the user interface unit 110 displays a confirmation screen B700 for confirming “change of printing paper set in the paper tray” illustrated in FIG.

  FIG. 7 is a diagram showing an example of a confirmation screen for confirming the change of the printing paper. As shown in the drawing, in the confirmation screen B700, the area 701 for displaying data for prompting the user to set the “paper size set by the user” acquired in S104 in the paper tray and the paper in the paper tray are changed. An OK button 702 for receiving data indicating that is provided. The user sees the confirmation screen B700 and changes the paper loaded in the paper tray of the printing apparatus to “printing paper” presented in the area 701 of the confirmation screen B700. In the illustrated example, the printing paper is changed to “L size” printing paper. In response to an operation from the user, the printing paper fed to the printing apparatus is discharged. Then, after changing the printing paper in the paper feed tray, the user operates the operation panel 20 and presses (or clicks) the OK button 702 on the confirmation screen B700.

  Returning to FIG. 5, the description will be continued. The user interface unit 110 repeats the processes of S <b> 105 to S <b> 106 until the pressing of the OK button 702 on the confirmation screen B <b> 700 is received via the operation panel 20. On the other hand, when the user interface unit 110 accepts pressing of the OK button 702 on the confirmation screen B700, that is, accepts data indicating that the paper in the paper tray has been changed from the user, the process proceeds to S107.

  In step S <b> 107, the user interface unit 110 notifies the printer engine control unit 111 of “paper change” and ends the process. When the notification of “paper change” is performed by the user interface unit 110 through S107, the above-described processing of S20 in FIG. 4 is performed.

  In the above description, when the user performs an operation to change the printing paper, the printing paper fed in S12 (FIG. 4) is discharged, but this is only an example. For example, in S102, when the user interface unit 110 receives a request from the user to not continue printing, the user interface unit 110 outputs a message to that effect to the printer engine control unit 111, and receives the request to continue printing. The control unit 111 may control the printer engine 30 to discharge the fed printing paper.

  In S104, the user interface unit 110 acquires the “paper size set by the user” from the printer engine control unit 111. However, the present invention is not limited to this. If the user interface unit 110 holds data when a print request is received from the user (including the “paper size set by the user”), this step may be omitted.

  As described above, in the present embodiment, when the “paper size” set by the user from the operation panel 20 and the “paper size” of the printing paper actually fed to the printing apparatus are different, the user is given a paper size. In addition to presenting a difference, it is urged to determine whether or not to continue the printing process. If the user does not wish to print with different paper sizes, the user is prompted to discharge the once fed paper and set the “paper size” printing paper set from the operation panel 20. Like to do. Therefore, according to the present embodiment, even when the “paper size” is different from the “paper size” of the printing paper actually fed to the printing apparatus, the user can perform normal printing processing. Can be induced.

  According to the present embodiment, even if the paper size is set incorrectly, the printing apparatus presents that fact, so that unintended printing by the user can be prevented. As a result, in this embodiment, it is possible to prevent unnecessary consumption of printing paper and ink (or toner).

  In recent years, printing apparatuses are widely used in general households, and the user group is also expanding. For example, a user who is unfamiliar with the operation of an information processing apparatus such as a personal computer is also printing an image taken with a digital camera or the like using the direct printing function of the printing apparatus. It can be estimated that there are many cases where a user who is unfamiliar with the operation of the information processing apparatus incorrectly sets the print paper. Therefore, the function of the present embodiment is considered to be particularly effective for a user who has little knowledge of the information processing apparatus.

  In addition, when performing direct printing, various settings must be made from the operation panel 20 provided in the printing apparatus, and the operability is worse than when setting from the host computer (PC). Therefore, when direct printing is performed, it is considered that there is a high possibility that various settings are erroneous as compared with the case of printing from a PC. In the present embodiment, even if the paper size is incorrectly set, the printing apparatus presents that fact, so that it is possible to prevent unintended printing from being performed by the user when performing direct printing.

  The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the gist of the present invention. For example, in the above description, the present embodiment is applied to a printing apparatus that performs print processing. However, the present embodiment may be applied to a multifunction machine having a copy function and a scanner function.

  Further, in the above embodiment, when the paper sizes are different, the confirmation screens of FIGS. 6 and 7 are displayed to present various information to the user or prompt the user to change the printing paper. It is not a thing. For example, a voice output unit may be provided in the printing apparatus, and the contents on the screens of FIGS. 6 and 7 may be guided to the user using the voice data.

1 is a schematic configuration diagram of a printing apparatus to which an embodiment of the present invention is applied. It is a block diagram which shows an example of a function structure of the controller 10 of this embodiment. It is the figure which showed the data structure of the paper size table of this embodiment in simulation. 6 is a flowchart of a printing process of the printing apparatus according to the embodiment. It is a flowchart of the process of the user interface part of this embodiment. It is a figure showing an example of a confirmation screen which confirms whether printing processing is continued. It is the figure which showed an example of the confirmation screen for confirming the change of a printing paper.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Controller, 20 ... Operation panel, 30 ... Printer engine, 31 ... Paper width detection sensor, 40 ... Memory card reading apparatus, 45 ... Memory card, 101 ... CPU, 102 ... ROM, 103 ... RAM, 105 ... IF, 106 ... System bus 110 ... User interface unit 111 ... Printer engine control unit 112 ... Paper size table storage unit

Claims (4)

A printing apparatus having a printing mechanism for performing printing processing on printing paper fed from a paper feeding unit on which printing paper is placed,
The printing mechanism is provided with a sensor for detecting the paper size of the fed printing paper,
Input means for accepting the paper size setting from the user;
Image data is acquired from outside, print data of the paper size accepted by the input unit is generated using the acquired image data, and the paper is fed to the printing mechanism using the generated print data Control means for executing printing processing on printing paper,
The control means includes
When the print data is generated, the printing paper placed on the paper feeding unit is fed to the printing mechanism, the paper size of the printing paper fed to the sensor is detected, and the sensor detects When the paper size of the printing paper is compared with the paper size received by the input unit and the two are different as a result of the comparison, the paper size set to the user is different from the paper size previously fed. A printing apparatus characterized by presenting an effect. The printing apparatus according to claim 1,
It has a display panel that displays various data,
The control means includes
A printing apparatus that displays on the display panel a display screen indicating that the set paper size is different from the pre-feed paper size. The printing apparatus according to claim 1, wherein:
The control means includes
When presenting that the set paper size is different from the fed paper size, the user is also prompted to select whether or not to continue the printing process with the paper size being different,
When receiving a selection from the user to continue the printing process via the input means, the printing mechanism is controlled so that the generated print data fits on the printing paper fed to the printing mechanism. Print processing,
When receiving a selection from the user that the printing process is not continued through the input unit, the user is requested to select a print sheet placed on the paper feed unit with a paper size that the input unit has received. A printing apparatus characterized by prompting to change to printing paper. A printing method performed by a printing apparatus having a printing mechanism for performing printing processing on printing paper fed from a paper feeding unit on which printing paper is placed,
The printing mechanism is provided with a sensor for detecting the paper size of the fed printing paper,
Receiving a paper size setting from the user;
Acquire image data from outside, generate print data of the accepted paper size using the acquired image data, and send the print mechanism to the print paper fed using the generated print data And a control step for executing a printing process.
The control step includes
When the print data is generated, the printing paper placed on the paper feeding unit is fed to the printing mechanism, the paper size of the printing paper fed to the sensor is detected, and the sensor detects The paper size of the printing paper is compared with the paper size that has received the setting. If the comparison results in a difference between the two, the user is notified of the paper size that has received the setting and the paper size that has been previously fed. A printing method characterized by presenting a different effect.

Images