JP6338645B2 - Printing apparatus and printing apparatus control method - Google Patents

Description

The present invention relates to a printing apparatus capable of shifting to a state in which high-speed activation is possible when a power switch is turned off, and a control method therefor.

In recent years, image forming apparatuses and information processing apparatuses have a problem in that it takes a long time until a user can actually operate a power switch for multi-functionality.
To solve this problem, when the user turns off the power switch, a function called suspend is set so that the operation of the program being executed is paused so that it can be recovered in the same operating state as the current operating state. Some have (suspend mode).

  Some have a function called “resume” that starts when the user turns on the power switch in the operating state immediately before the end, that is, returns to the state immediately before the end.

  According to the suspend function, the image forming apparatus in the normal operation mode can shift to the suspend mode in which the operation of each unit is suspended while maintaining the state immediately before the operation is suspended.

Further, according to the resume function, the image forming apparatus in the suspend mode can return to the normal operation mode in a state immediately before the transition to the suspend mode.
In other words, by using the functions as described above, an image forming apparatus such as a digital multi-function peripheral can be started at a high speed and can quickly return to the previous operating state.
In addition, the fast start-up technology that holds the values of these memories has a problem in that if the suspend mode is entered while the processing is being executed, the processing will be interrupted and time will elapse. .

  Patent Document 1 proposes an image forming apparatus in which a power saving shift reservation state is maintained until a predetermined time elapses even when a power saving shift key is operated.

Japanese Patent Application Laid-Open No. 11-3006

  For example, if the device's power switch uses a fast startup technology that retains memory values, such as suspend mode, the following phenomenon will occur if the suspend mode is entered while a job is being processed. Occur.

-Immediately after the power is turned on, the job before the power is turned off is executed.
-Jobs immediately after power on and before power off are displayed with errors.
Originally, since the power switch is a switch for the device off function, it is not preferable that the job before turning off the switch is continuously executed in this way.
Moreover, even if the power saving transition key is operated as in Patent Document 1, even in a configuration in which the power saving transition reservation state is set until a predetermined time has elapsed even when the power saving transition key is operated, a job being executed or waiting is not completed within the predetermined time. In such a case, a similar problem occurs.

The present invention has been made to solve the above problems.
The object of the present invention is to enable high-speed startup when the power switch is turned on, and from the state where the power switch is turned off and paused during job execution, the power switch is turned on to start the apparatus. However, it is to provide a mechanism for preventing a problem caused by a job before suspension after starting.

The present invention is a printing apparatus, and a power switch, program and a processor for executing a volatile memory to be loaded, the program loaded in the memory, based on the operation of the power switch, the waiting without waiting for the completion of the print job, to shift the printing apparatus to a first power state the supply of power is stopped to some and at least the processor power is supplied to the said memory, and said power switch based on the operation, the power control unit to which electric power Ru is shifted to the second power state to be supplied to the power printing device to said memory from said first power state is supplied and the processor, the power control The standby is performed so that the standby print job is not executed when the printing apparatus shifts from the first power state to the second power state by means. And having a control means for terminating the print job.

  According to the present invention, when the power switch is turned on, high-speed startup is possible, and the power switch is turned on and the apparatus is started from a state where the power switch is turned off and paused during job execution. However, it is possible to prevent a problem caused by a job before the suspension after activation from occurring.

1 is a block diagram illustrating a schematic configuration of an image forming apparatus (MFP) 100 according to an embodiment of the present invention. 2 is a block diagram showing a schematic configuration of an MFP controller unit 12. FIG. 3 is a block diagram illustrating a schematic configuration of a power supply control unit 23. FIG. It is a flowchart which shows an example of the conventional shutdown sequence by a power switch OFF. 6 is a flowchart illustrating an example of processing of the MFP 100 of the present invention when a power switch is turned off. 6 is a flowchart illustrating an example of processing of the MFP 100 of the present invention when a power switch is turned on.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing a schematic configuration of an image forming apparatus 100 (hereinafter referred to as “MFP”) according to an embodiment of the present invention. The MFP 100 has composite functions such as a copy function, a printer function, and a scanner function.

  In FIG. 1, an MFP controller unit 12 controls the entire MFP. The printer unit 13 performs image processing according to, for example, an electrophotographic method. The scanner unit 11 optically reads an image from a document and converts it into a digital image.

  The power supply unit 10 supplies power to each control unit of the MFP 100. The operation unit 15 is for a user to operate the MFP 100. The power switch unit 14 can be turned on and off by the user, and controls the power state of the MFP 100.

  With the above configuration, an MFP having a copy function, a printer function, a scanner function, and the like is configured. The printer unit 13 is not limited to the electrophotographic method as long as it can perform image processing on both sides of a sheet-like recording medium (for example, recording paper), and other recording methods, For example, an ink jet method or a thermal transfer method may be used.

FIG. 2 is a block diagram showing a schematic configuration of the MFP controller unit 12 shown in FIG. In the following description, description of the above-mentioned reference numerals is omitted.
In FIG. 2, the power control unit 23 has a function of notifying the CPU unit 27 as an interrupt that the power switch unit 14 is turned on or off. In addition, the power control unit 23 performs control such that the power of each unit is cut off when shifting to the power saving mode, and the power of each unit is supplied when returning from the power saving mode.

  The reset unit 24 is a reset control unit that issues a reset to the CPU unit 27 and the entire system based on a control signal from the power supply control unit 23 to execute a restart process. The FET 20 is a switch for turning on / off the power supply to the power supply system B21. The FET 29 is a switch for turning off the power supply to the power supply system A22 and the power supply system B21. FET indicates a field effect transistor.

The CPU unit 27 is a control unit that controls the entire MFP 100. The memory unit 25 is a volatile storage unit such as a DDR SDRAM.
The image processing unit 28 is a control unit that performs processing such as compressing data from the scanner unit 11 and outputting image data processed by the CPU unit 27 to the printer unit 13. The HDD unit 26 is an external storage device, and is a non-volatile storage unit such as a hard disk (HDD).

Next, the power supply system of the MFP controller unit 12 will be described.
In this embodiment, the power consumption is lower than the normal state and the startup time is fast, and the suspend method for holding data in the memory is applied. However, other methods such as a hibernation method are used. It may be used.

  As described above, the MFP 100 executes the suspend process when the power switch unit 14 is turned off. In the suspend process, an operation such as a running program is paused so that the operation state can be recovered in the same operation state as the current operation state, and the system state (first state) is stored in the memory unit 25. Then, a transition is made to a resting state (second state) in which the power supply of the power supply system B21 is cut off. Then, when the power switch unit 14 is turned on next time, the MFP 100 returns to the first state and restarts the program. In this embodiment, the first state is a normal state and the second state is a suspended state. As described above, the suspend state is a power saving state, and the power consumption amount of the MFP 100 in the suspend state is smaller than the power consumption amount of the MFP 100 in the normal state. Further, as described above, the second state may be a hibernate state. That is, when shifting from the first state to the second state, the first state may be stored in the HDD unit 26 instead of the memory unit 25, and power supply to the memory unit 25 may be cut off.

  The power supply system A22 supplies power to the power supply control unit 23, the reset unit 24, and the memory unit 25, and supplies power to a part of the CPU unit 27. Since the power supply system A22 manages the power supply state of the entire MFP 100 and realizes the return from the power saving mode, the power supply is not cut off in any power saving mode.

The power supply system B21 supplies power to the CPU unit 27, the image processing unit 28, the HDD unit 26, and the like. Note that control of power supply cutoff / supply of the power supply system B21 is realized by controlling the FET 20 with a control signal 35 output from the power supply control unit 23.
The power supply cutoff of the power supply system A22 and the power supply system B21 is realized by controlling the FET 29 with the control signal 40 output from the power supply control unit 23.

FIG. 3 is a block diagram illustrating a schematic configuration of the power supply control unit 23 illustrated in FIG. 2.
In the power control unit 23, the power state management unit 30 detects an off operation of the power switch unit 14 and notifies the CPU unit 27 of the state of the power switch unit 14 via the interrupt signal 34.
After detecting the state of the power switch unit 14, the CPU unit 27 selects and executes either (A) transition to the suspend state or (B) transition to the shutdown state.

<When (A) Suspend state is selected>
The CPU unit 27 notified of the state by the interrupt signal 34 executes a transition process to the suspend state in which the power consumption is lower than that in the normal state and the state is fast startup.

After completion of the suspend transition process, the CPU unit 27 notifies the power supply control unit 23 that the suspend transition process has been completed by a suspend process end signal 36.
When the suspend process end signal 36 is notified, the power supply state management unit 30 controls the FET 20 via the FET control signal 35 and shuts off the power supply to the power supply system B21. Further, when the power supply state management unit 30 detects the ON operation of the power supply switch unit 14, the power supply state management unit 30 controls the FET 20 via the FET control signal 35 and starts supplying power to the power supply system B21.
At this time, the FET 29 is open, the power supply of the power supply system A22 is continued, and the CPU operating state is held in the memory unit 25.

<When (B) Shutdown is selected>
When the CPU unit 27 notified of the state by the interrupt signal 34 determines complete termination of the system, it performs a shutdown.

After the end process of the application or the like, the CPU unit 27 notifies the power source control unit 23 that the shutdown process has ended by a system end completion signal 39.
When the system end completion signal 39 is notified, the power supply state management unit 30 controls the FET 29 (FIG. 2) via the FET control signal 40 (FIG. 2) and cuts off the power supply of the power supply system A22 and the power supply system B21. Thus, the power supply of the apparatus is completely turned off.

  When the power switch unit 14 is turned on from a state in which the power is completely turned off, normal activation is performed instead of suspend activation. In the case of normal startup, energization of the FET 20 and FET 29 is started and the system is started. The activation from the suspended state will be described later.

  The timer unit 31 starts time measurement after the power switch unit 14 is turned off, and at the same time, the OFF time monitoring unit 32 monitors whether or not the power state management unit 30 has received the suspend process end signal 36. That is, if the power switch unit 14 is turned off but the suspended state is not entered within a certain time, it is determined that the software is hung, and the OFF time monitoring unit 32 resets the hardware to the reset unit 24. The reset unit 24 functions as a safety device that issues a reset 38 to the CPU unit 27 to forcibly turn off the power. By providing the timer unit 31, it is possible to avoid a trouble that the power cannot be turned off even when the power switch is turned off.

Hereinafter, a conventional shutdown sequence will be described with reference to FIG.
FIG. 4 is a flowchart showing an example of a conventional shutdown sequence by turning off the power switch.
When the power control unit 23 detects that the power switch unit 14 is turned off by the user, the power control unit 23 notifies the CPU unit 27 of an interrupt signal 34. Upon receiving this notification, the CPU unit 27 starts the processing of this flowchart.

First, in step S <b> 401, the CPU unit 27 stops accepting jobs, which are processing units executed by the MFP 100, so as not to accept jobs while the system is finished.
In step S <b> 402, if there are jobs that are currently being executed or are waiting (remaining jobs), the CPU unit 27 forcibly terminates these jobs. Note that forced termination of a job is to clear the occurrence status regardless of the current job status. If the job is saved on the hard disk device, the data is cleared, or it exists in memory. Is to make the job never run again.

Next, in S403, the CPU unit 27 issues a shutdown command to the system and performs system termination processing such as a kernel.
When the system termination process is completed, the CPU unit 27 issues a system termination completion signal 39 in S404, and shuts off the power supply of the power supply system A22 and the power supply system B21. As a result, the energization of the MFP 100 is completely turned off. When the power switch is turned on next time, the system is reset and the system is started.
In the conventional sequence described above, the state of the memory unit 25 is cleared, so that high-speed startup cannot be realized.

Hereinafter, with reference to FIG. 5, processing of MFP 100 of the present invention when the power switch is turned off will be described.
FIG. 5 is a flowchart showing an example of processing of the MFP 100 of the present invention when the power switch is off. Note that the processing of this flowchart is realized by the CPU unit 27 reading and executing a program recorded in the HDD unit 26 or the memory unit 25 in a computer-readable manner.

  When the power control unit 23 detects that the power switch unit 14 is turned off by the user, the power control unit 23 notifies the CPU unit 27 of an interrupt signal 34. Upon receiving this notification, the CPU unit 27 starts the processing of this flowchart.

  First, in S <b> 501, the CPU unit 27 stops accepting a job as a processing unit executed by the MFP 100 so as not to accept a job while the system is terminated, and starts measuring a timeout time in S <b> 504 described later.

  In step S <b> 502, if there are jobs that are currently being executed or are waiting (remaining jobs), the CPU unit 27 forcibly terminates these jobs. Note that forced termination of a job is to clear the occurrence status regardless of the current job status. If the job is saved on the hard disk device, the data is cleared, or it exists in memory. Is to make the job never run again.

  Next, in S503 and S504, the CPU unit 27 monitors whether or not the jobs are completely eliminated (whether all jobs have been completed) with a timeout. In S504, the time (first time) from the detection of turning off of the power switch unit 14 to the determination of timeout is the time from when the timer unit 31 determines that the MFP 100 needs to be reset after the power switch unit 14 is turned off (first time). The time is shorter than the second time.

  If the CPU 27 determines that all jobs are completely lost (no jobs are present) before the timeout time elapses (No in S503), the CPU 27 executes a suspend transition process (S505). ) The system is suspended. Further, after shifting to the suspend state, the CPU unit 27 notifies the power supply control unit 23 of a suspend process end signal 36. When notified of the suspend process end signal 36, the power control unit 23 cuts off the power supply to the power supply system B21 and shifts to the suspend state.

  On the other hand, when the CPU unit 27 cannot detect the absence of a job (there is a job that has not been completed yet) and determines that the job completion wait has timed out (Yes in S503 and Yes in S504), the suspend process is performed. Abandon and perform the existing power-off operation (S510, S511).

That is, in S510, the CPU unit 27 issues a shutdown command to the system and performs system termination processing such as a kernel.
When the system termination process is completed, the CPU unit 27 issues a system termination completion signal 39 to the power supply state management unit 30 in S511, and the power supply state management unit 30 issues a control signal 40 to the FET 29 to supply the power supply system A22, Control is performed to shut off the power supply of the power supply system B21. As a result, the system of MFP 100 is normally terminated and the energization is completely turned off. When the power switch unit 14 is turned on next time, the system is reset and the system is started.

  As described above, in MFP 100 according to an embodiment of the present invention, when the power switch unit 14 is turned off by a user, a job being executed or waiting is canceled, and the job being executed is executed by the cancel process. Alternatively, if the waiting job is canceled, the MFP 100 is shifted to a dormant state, and if the execution or waiting job is not canceled by the cancel processing, the MFP 100 is shifted to an off state.

  As shown in FIG. 3, the MFP 100 according to this embodiment is equipped with a timer unit 31 and the like to ensure that the power of the MFP 100 is turned off within a predetermined time when the power switch unit 14 is turned off. Have means. This is an important item as an apparatus of the MFP 100. However, if it takes a long time to finish the job after executing the forced job termination (S502), the timer unit 31 resets the system during job termination, and the system is forced to remain suspended. In other words, the power supply to the MFP 100 is cut off.

  Therefore, the MFP 100 according to the present embodiment is provided with the time-out process in S504. Thereby, before the power supply is cut off by the timer unit 31 or the like, a timeout is determined in S504, the system is shut down, and the system is normally terminated.

  In both cases, when the system is normally terminated by the shutdown, or when the system is forcibly terminated in the suspended state by the timer unit 31, cold boot (normal activation) is performed when the power is turned on next time. It will be. However, at the time of cold boot, it is determined whether the previous system has been normally terminated. If the system has not been normally terminated, for example, a recovery process may be performed, and the normal termination may occur. desirable.

  When suspend is used for the normal sleep function or the like (that is, when there is no user operation or job reception for a predetermined time), it is only necessary to wait for the completion of the job and enter the suspend state. This is inconvenient. However, it is not always desirable to forcibly shut down the power without interrupting the system normally.

  In this embodiment, normally, even if it takes time to finish the job, the timeout is determined in S504 and the system is shut down within a predetermined time (the system is normally terminated), and the processing by software is performed. Even in an emergency situation where the shutdown cannot be executed in the determination of S504 because of a hang-up or the like, it is ensured that the power of the apparatus is turned off within a certain time by forcibly turning off the power by the timer unit 31 or the like. Configure.

  According to the present invention, when the power switch is turned off, the device power is turned off within a predetermined time, and the suspend can be used to perform high-speed startup during normal use. Become.

Hereinafter, with reference to FIG. 6, the processing of MFP 100 of the present invention when the power switch is turned on will be described.
FIG. 6 is a flowchart showing an example of processing of the MFP 100 of the present invention when the power switch is turned on. Note that the processing of this flowchart is executed by the power supply control unit 23 and the CPU unit 27. The processing executed by the CPU unit 27 is realized by the CPU unit 27 reading and executing a program recorded in the HDD unit 26 or the memory unit 25 so as to be readable by a computer.

When the power switch unit 14 is turned on, the processing of this flowchart is started.
First, the process branches depending on whether or not the current state is the suspended state (S506). Since the power supply control unit 23 is energized from the power supply system A22, the power supply control unit 23 can detect that the power supply switch unit 14 is turned on when the power supply control unit 23 is energized when the power supply is turned on. it can. In this case, the power supply control unit 23 determines that the current state is the suspended state (Yes in S506), and advances the process to S507.

In S507, the power supply control unit 23 controls the FET 20 via the FET control signal 35 and starts supplying power to the power supply system B21 (S507).
Next, when the power supply control unit 23 notifies the resume signal 37 to the CPU unit 27, the CPU unit 27 executes the resume process (S508). After the resume process, the CPU unit 27 resumes job acceptance (S509) and returns to the normal state.

  The sequence (S507 to S509) in the case of Yes in S506 is an operation when the suspend process is selected by turning off the power switch unit 14 (that is, an operation based on a normal system in which there is no job). When this sequence is executed, the MFP 100 can be started at a higher speed by the resume process from the suspend process as compared with the cold boot (normal start).

  On the other hand, when the power control unit 23 is not energized when the power is turned on, that is, when the power is turned on when the power is turned on, the current state is a completely off state after shutdown (not suspend) (S506). No), power supply to the power supply system A22 and the power supply system B21 is started (S510).

  Then, the system is reset by the power supply, and the cold boot (normal activation) of the system starts. Specifically, a reset exception occurs when the CPU unit 27 is reset, and the boot program starts operating (boot processing of the CPU unit 27 (S511)). The boot program reads the control program from the HDD unit 26 into the memory unit 25, executes the program developed on the memory unit 25, and starts the system.

When the system is activated and job reception can be started, the CPU unit 27 starts job reception (S512).
The sequence in the case of No in S506 (S510 to S512) is an operation when the shutdown process is selected by turning off the power switch unit 14. In this case, since the state of the memory unit 25 has been cleared, high-speed activation of the MFP such as resume processing cannot be realized. In this case, the job group that could not wait for completion in S503 of FIG. 5 is deleted by system reset, and the same effect as the conventional power-off operation (FIG. 4) can be obtained.

  As described above, according to the MFP of the present embodiment, immediately after the apparatus is started by turning on the main switch (power switch unit 14), the job before turning off the main switch is delayed or a job error suddenly occurs. It is possible to prevent the occurrence of conventional problems such as occurrence. Fast startup using memory resume technology can also be realized by the same operation as the main switch operation in an MFP having only a conventional shutdown function.

  Therefore, high-speed startup is possible when the power switch is turned on, and even if the power switch is turned on and the device is started from a state where the power switch is turned off during job execution It is possible to prevent a problem caused by the job before the suspension later from occurring.

It should be noted that the configuration and contents of the various data described above are not limited to this, and it goes without saying that the various data and configurations are configured according to the application and purpose.
Although one embodiment has been described above, the present invention can take an embodiment as, for example, a system, apparatus, method, program, or storage medium. Specifically, the present invention may be applied to a system composed of a plurality of devices, or may be applied to an apparatus composed of a single device.

Moreover, all the structures which combined said each Example are also contained in this invention.
(Other examples)
The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

Further, the present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device.
The present invention is not limited to the above embodiments, and various modifications (including organic combinations of the embodiments) are possible based on the spirit of the present invention, and these are excluded from the scope of the present invention. is not. That is, the present invention includes all the combinations of the above-described embodiments and modifications thereof.

100 Image forming apparatus (MFP)
14 Power switch section 10 Power supply section 12 MFP controller section 21 Power supply system B
22 Power supply system A
23 Power Control Unit 24 Reset Unit 25 Memory Unit 27 CPU Unit

Claims (28)

A printing device,
A power switch;
Volatile memory into which the program is loaded , and
A processor for executing a program loaded in the memory;
Based on the operation of the power switch, without waiting for completion of the print jobs waiting, first the power supply of the printing apparatus to a part of and at least the processor is supplied power to the memory is stopped A second power state in which power is supplied to the memory from the first power state and power is supplied to the processor based on an operation of the power switch. a power control unit that Ru is shifted to,
Control means for ending the waiting print job so that the waiting print job is not executed when the printing apparatus shifts from the first power state to the second power state by the power control means; ,
A printing apparatus comprising: The power control unit stops the supply of power to the printing apparatus , the first power state, the memory, and the processor based on the operation of the power switch in the second power state. The printing apparatus according to claim 1, wherein the printing apparatus is capable of shifting to a third power state. The control means further ends the print job being executed so that the print job being executed is not executed when the printing apparatus is shifted to the second power state by the power control means. The printing apparatus according to claim 1 or 2. Wherein, before moving to the first power state, without waiting for the completion of the print job in the waiting, claims 1 to 3 wherein the ends of the print jobs waiting, characterized in that The printing apparatus according to any one of the above. The printing apparatus according to claim 1, wherein the volatile memory is a DRAM that stores a program executed by the processor . The first power state is the suspend state, the printing apparatus according to any one of claims 1 to 4, characterized in that. The printing apparatus according to claim 2 , wherein the power control unit shifts the printing apparatus to a third power state when the print job does not end within a first predetermined time. The printing apparatus according to claim 7, wherein the third power state is an off state. The printing apparatus according to claim 7, wherein the control unit performs a shutdown process of the printing apparatus before shifting to the third power state. 10. The printing according to claim 1, wherein the control unit stores information indicating a state of the processor in the memory before shifting to the first power state. 11. apparatus. The said control means performs a resume process using the information memorize | stored in the said memory based on operation of the said power switch in the said 1st electric power state, The Claim 1 thru | or 10 characterized by the above-mentioned. The printing apparatus according to any one of the above. 10. The printing apparatus according to claim 7, wherein the control unit executes a boot process based on an operation of the power switch in the third power state. 11. The printing apparatus according to claim 12, further comprising a reset unit that resets at least the memory before executing the boot process.   The printing apparatus according to claim 1, wherein the control unit stops accepting a new print job based on an operation of the power switch. The power switch is a switch which is turned on or off according to the operation of the user, the printing apparatus according to any one of claims 1 to 1 4, characterized in that. A printing device capable of entering a suspended state based on an operation of a power switch,
Volatile storage means capable of storing the state of the printing apparatus;
After the power switch is operated and before the printing apparatus shifts to the suspended state, the printing apparatus returns from the suspended state without waiting for at least completion of a waiting print job. Control means for terminating the waiting print job so that the waiting print job is not executed ;
A printing apparatus comprising: Based on the previous operation's rating power switch, the said printing device suspend state, and further includes a power control means capable of shifting the off state, the printing apparatus according to claim 1 6. Said control means further according to claim 1 6 or 1 7 in which the ends the print job in the execution as a print job in execution is not executed when returning from the suspend state, characterized in that Printing device. Wherein, before entering the suspended state, without waiting for the completion of the print jobs waiting to end the print job in the standby, claim 1 6 or 18, characterized in that The printing apparatus according to item 1 . The printing apparatus according to any one of claims 16 to 19 , wherein the control unit shifts the printing apparatus to an off state when the print job is not completed within a first predetermined time. . Wherein, before moving to the OFF state, the shutdown processing of the printing apparatus, printing apparatus according to claim 2 0, wherein. Wherein, before entering the suspended state, the state store information indicating the printing device in a volatile memory means, any one of claims 1 6 to 2 1, characterized in that The printing apparatus as described in. Said control means on the basis of the operation of the power switch in the suspended state, it executes the resume process, that the printing apparatus according to any one of claims 1 6 to 2 2, wherein. It said control means, based on the operation of the power switch in the off state, executes the boot process, the printing apparatus according to claim 2 0 or 2 1, characterized in that. Before executing the boot process, further comprising reset means for resetting at least said memory means, that the printing apparatus according to claim 2 4, characterized in. The printing apparatus according to any one of claims 16 to 25 , wherein the control unit stops accepting a new job based on an operation of the power switch. Volatile which memory is supplied power and at least a first power state power supply to a part of the processor is stopped, and the second volatile memory and power to the processor is supplied a power state, proceeds to the control method of Rukoto capable printing device,
A step of power based on the operation of the switch, to shift the printing device to the first power state,
Transitioning the printing apparatus from the first power state to the second power state based on an operation of the power switch;
Ending the waiting print job so that the waiting print job is not executed when the printing apparatus transitions from the first power state to the second power state;
Control method characterized by having a. A control method of migrating a printing apparatus to suspend state,
Transitioning the printing device to the suspended state based on an operation of a power switch;
After the power switch is operated and before the printing apparatus shifts to the suspended state, the printing apparatus returns from the suspended state without waiting for at least completion of a waiting print job. a step of ending the print job of the waiting as a print job in the waiting is not executed,
Control method characterized by having a.

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