JP5948760B2 - Image forming apparatus and operation method thereof - Google Patents

Description

  The present invention relates to an image forming apparatus and an operation method thereof, and more particularly, to a technique for quickly shifting to an energy saving mode.

  In the technical field of image forming apparatuses, there is already known an apparatus that shifts to an energy saving mode after a predetermined time has elapsed after a standby state. These conventional image forming apparatuses have a problem that a certain time is required to shift to the energy saving mode and the power is not automatically turned off.

  Patent Document 1 discloses a technology for instructing an energy saving mode shift from a host computer in a network printing environment for the purpose of enhancing the energy saving effect. However, the problem that the power is not automatically turned off after completion of printing has not been solved.

  Conventionally, “change in power usage state” such as automatic power-off and energy saving mode shift has a problem that a certain time is required after printing.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an image forming apparatus that quickly changes the power usage state after printing and an operation method thereof.

In order to achieve the above object, the present invention provides a print job analyzing unit that analyzes a print job including a command that instructs a change in power usage state, an image forming unit that forms an image on a sheet based on the print job, Immediately after the image formation, there is provided state transition control means for performing a first control for changing the power usage state of the apparatus based on the command detected as a result of analysis. includes at least a migration to the energy-saving mode to the power-off, the state transition control means, when an error in the image forming middle by the image forming means is generated, even if not the image formation is completed, the immediately after an error, JP that have rows the first control for changing the power use state of the device, as the type of the error, comprising at least a no-paper and paper jam To provide an image forming apparatus.

In order to achieve the above object, the present invention provides a print job analysis step for analyzing a print job including a command for instructing a change in power usage state, and an image formation step for forming an image on a sheet based on the print job. And a state transition control step for performing first control to change the power usage state of the apparatus based on the command detected as a result of analysis immediately after the image formation, and the type of change in the power usage state Includes at least a transition to power-off and a transition to an energy saving mode. In the state transition control step, if an error occurs during image formation by the image formation step, the image formation may not be completed. , this immediately after the error, it has rows the first control for changing the power use state of the device, as the type of the error, comprising at least a paper-free and paper jam Characterized, to provide a method of operating an image forming apparatus.

  According to the present invention, it is possible to provide an image forming apparatus that quickly changes the power usage state after execution of printing and an operation method thereof.

1 is a block diagram illustrating a hardware configuration example of an image forming apparatus according to an embodiment of the present invention. It is a functional block diagram which shows the function structure of the said embodiment. It is a flowchart figure which shows the procedure (the 1) of the operation | movement of the said embodiment. It is a flowchart figure which shows the procedure (the 2) of the operation | movement of the said embodiment. It is a flowchart figure which shows the procedure (the 3) of the operation | movement of the said embodiment. It is a flowchart figure which shows the procedure of the setting process of the authentication information in the said embodiment. It is a flowchart figure which shows the procedure (the 4) of the operation | movement of the said embodiment. It is a flowchart figure which shows the procedure (the 5) of operation | movement of the said embodiment. It is a flowchart figure which shows the procedure (the 6) of the operation | movement of the said embodiment. It is a figure which shows the example of a user interface in the said embodiment.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In short, the following embodiment is characterized in that a power-off instruction can be included in a print job, and a printer that has received the print job is turned off immediately after the completion of the print job.

  Here, “power off” is not limited to this, and may be any change in the power usage state of the printer that has received the print job. Specifically, the change in the power usage state is, for example, “transition to the energy saving mode”. In this embodiment, “energy saving mode” refers to stopping power supply to most hardware devices of equipment except for hardware that provides some functions such as reception of print jobs. It is a state where equipment is operated with energy saving.

FIG. 1 shows a hardware configuration example of an image forming apparatus 1 according to the present embodiment.
The image forming apparatus 1 includes a central processing unit (hereinafter “CPU”) 101, a memory 102, a nonvolatile memory 103, a plotter 104, a scanner 105, an operation display unit 106, a network interface 107, and a USB device interface 108 via a bus. The USB host interface 109 and the memory card interface 110 are connected.

  The CPU 101 functions as an arithmetic processing device, the memory 102 functions as a primary storage device, and the nonvolatile memory 103 functions as a secondary storage device. The plotter 104 functions as an output device, and the scanner 105 functions as an input device. The operation display unit 106 is a user interface. The image forming apparatus 1 inputs and outputs data to and from an external device or an external device via the network interface 107, the USB device interface 108, the USB host interface 109, and the memory card interface 110.

  The print job is input to the image forming apparatus 1 via the network interface 107 or the like. Alternatively, the print job is generated inside the image forming apparatus 1 based on the image read by the scanner 105 (in the case of so-called copy processing or the like). In the present specification, even if the print job is generated, it is assumed that the print job is input to the image forming apparatus 1.

  The plotter 104 forms an image on a paper-like recording medium (paper) based on a print job input to the image forming apparatus 1. Therefore, it functions as an image forming unit. Various image forming methods can be used. For example, an electrophotographic method can be applied. The operation display unit 106 may be a touch panel, for example. Therefore, while functioning as an input means for inputting an execution instruction or the like from the user, it also functions as a display means for displaying a screen or the like that asks the user whether or not energy saving is possible.

  The nonvolatile memory 103 stores an operation program for the image forming apparatus 1. This is read by the CPU 101 and expanded in the memory 102 to cause the image forming apparatus 1 to perform a predetermined operation. The control unit 111 of the image forming apparatus 1 is configured by such cooperation between the hardware and the software program.

FIG. 2 shows a functional configuration of the present embodiment.
The image forming apparatus 1 includes a control unit 111, an image forming unit 114, an input unit 117, a display unit 118, and a storage unit 119 from the viewpoint of the functional configuration. As shown in FIG. 2, the control unit 111 includes functional blocks of a print job analysis unit 112, an image processing unit 113, a state transition control unit 115, and a switching unit 116.

  As described with reference to FIG. 1, the image forming unit 114 is the plotter 104 in the hardware configuration example of FIG. The input unit 117 and the display unit 118 are the operation display unit 106 such as a touch panel. The storage unit 119 is preferably one that does not volatilize even when the power is turned off, and the storage area of the nonvolatile memory 103 can be used.

  When a print job is input to the control unit 111, the print job analysis unit 112 analyzes the print job and extracts electronic document data and the like included in the analyzed print job. Based on the extracted data, the image processing unit 113 generates drawing data and passes it to the image forming unit 114. The image forming unit 114 forms or prints an image based on the received drawing data. Conventionally known processes can be used for these series of image forming processes.

  The storage unit 119 stores information related to authentication such as an authentication password when authentication is necessary for the control related to the change in the power usage state. The storage unit 119 also stores a flag indicating whether or not to perform control related to the change in the power usage state, that is, whether the function for changing the power usage state is valid or invalid. If the flag is on, the state transition control unit 114 enables the function. The switching unit 116 switches the flag on or off.

  The state transition control unit 114 performs control to change the power usage state. Specifically, control is performed to turn off the apparatus (power off). Alternatively, control for shifting the apparatus to the energy saving mode is performed. The present embodiment is characterized in that these controls are executed immediately after completion of a print job (meaning that image forming processing in the image forming unit 114 has been performed).

  The print job used for the control for changing the power usage state of the present embodiment includes a command for instructing the change of the power usage state in addition to the information included in the normal print job. Information included in a normal print job is, for example, designation of electronic document data, the number of output sheets, and print quality.

  Hereinafter, the operation procedure of the present embodiment will be described with reference to flowcharts. In the following, “change in power usage state” will be described as “power off”, but the same applies to “energy saving mode transition”.

FIG. 3 shows an operation procedure (No. 1) of the present embodiment.
The user issues a print instruction from a personal computer (not shown) or the like and also instructs the power off. In this embodiment, a print job including a power-off command is issued (step S101) and input to the image forming apparatus 1 via the network interface 107.

  When the image forming apparatus 1 receives the print job (step S102), the image forming apparatus 1 analyzes the print job and performs image formation or printing (step S103). The print job analysis unit 112 analyzes the print job.

  The state transition control unit 114 monitors the end of printing, and when the condition is satisfied (when there is a “power-off instruction”), executes the power-off (steps S104 and S105).

FIG. 4 shows the operation procedure (No. 2) of the present embodiment.
FIG. 4 shows an operation procedure when “no remaining job” is added as a condition for the state transition control unit 114 to turn off the power. The state transition control unit 114 checks whether or not there is a remaining job (step S204), and if not, turns off the power. Processing other than step S204 is the same as that in FIG.

  On the other hand, if there is a remaining job, printing is continued (Yes in step S204). Even when there are a plurality of print jobs input to the image forming apparatus 1, it is possible to appropriately process them by operating in this way. Note that not all input print jobs need to include a power-off command. When it is included in any one print job, it is preferable to operate in this way. Note that when the commands for changing the power usage state compete, the commands may be executed according to a predetermined priority order. For example, if “Energy saving mode transition” has priority over “Power off”, and there are “Energy saving mode transition” and “Power off” in different print commands, only “Energy saving mode transition” will occur. Execute. With this configuration, the apparatus operates properly.

FIG. 5 shows an operation procedure (No. 3) of the present embodiment.
In FIG. 5, when an error occurs during printing (step S304), the state transition control unit 114 issues a command (power off) included in the print job even if image formation or printing is not completed. Run. The types of errors may include at least paper out and paper jam (paper out and paper jam). With this configuration, there is an effect that the apparatus operates properly even when an error occurs.

  FIG. 6 shows a procedure of authentication information setting processing in the present embodiment. FIG. 7 shows a procedure (part 4) of the operation of the present embodiment. The operation procedure (No. 4) of this embodiment is an operation procedure when authentication information is set.

  In the case where the function for executing the change in the power usage state of the present embodiment is password-protected, the password is set according to the procedure shown in FIG. That is, the user inputs a password to the image forming apparatus 1 using the input unit 117 (step S401), and the control unit 111 stores the input password in the storage unit 119, thereby setting the password (step S401). S402).

  When the password protected function is used, the image forming apparatus 1 operates according to the operation procedure as shown in FIG. The difference from FIG. 3 is that the password is included in the print job (step S501), and the instructed password is compared with the stored password. In step S505, nothing is performed. According to the configuration described with reference to FIGS. 6 and 7, security is improved.

  The user's usability can be improved by adding the following procedure to the operation procedure described with reference to FIGS. That is, the power is turned off (or the energy saving mode is shifted) after a certain time after the printing is completed.

FIG. 8 shows the operation procedure (No. 5) of the present embodiment.
As shown in the figure, when the state transition control means 114 performs power-off control (Yes in Step S604), the timer built in the control means 111 is used to wait for a predetermined time (in this case, 10 seconds) (Step S604). S605 to S607), and then the power is turned off (step S608).

  Further, when the power off instruction is displayed on the display means 118 and the user is inquired about the power off execution instruction, the usability is further improved. This configuration will be described with reference to FIG.

FIG. 9 shows an operation procedure (No. 6) of the present embodiment.
In FIG. 9, immediately before step S709 corresponding to the countdown (step S606) in FIG. 8, a display for inquiring the user as to whether or not the display unit 118 executes power off is displayed (step S706). The inquiry display is, for example, “Do you want to turn off the power? [Yes / No] remaining = T seconds”. If there is an execution instruction key input (Yes in step S707 → Yes in S708), the power is immediately turned off (step S711). Even when the input from the user cannot be detected for a predetermined time (10 seconds in the example of FIG. 9) (No in step S707, the loop of S → 706 to S710 is repeated, Yes in S710), the power off control is also performed. (Step S711).

  If the operation of the present embodiment described with reference to FIGS. 3 to 9 is set to be valid or invalid, the usability is further improved. This setting uses a flag stored in the storage unit 119 that indicates whether or not to perform control related to the change in the power usage state, that is, whether the function for changing the power usage state is valid or invalid. If the flag is on, the state transition control unit 114 enables the function. The switching unit 116 switches the flag on or off. FIG. 10 shows an example of a user interface for performing a setting of “a function for changing the power usage state is enabled or disabled” displayed on the display unit 118.

1 Image forming apparatus 101 CPU
DESCRIPTION OF SYMBOLS 102 Memory 103 Nonvolatile memory 104 Plotter 105 Scanner 106 Operation display part 111 Control part 112 Print job analysis means 113 Image processing means 114 Image formation means 115 State transition control means 116 Switching means 117 Input means 118 Display means 119 Storage means

JP 2009-301380 A

Claims (6)

A print job analyzing means for analyzing a print job including a command for instructing a change in the power usage state;
Image forming means for forming an image on a sheet based on the print job;
Immediately after the image formation, state transition control means for performing first control to change the power usage state of the apparatus based on the command detected as a result of analysis,
The type of change in the power usage state includes at least transition to power off and transition to energy saving mode,
If an error occurs during image formation by the image forming unit, the state transition control unit changes the power usage state of the apparatus immediately after the error even if the image formation is not completed . There line the control of,
The image forming apparatus according to claim 1, wherein the types of errors include at least no paper and paper jam . The state transition control means detects the presence or absence of a remaining print job after image formation based on each print job when there are a plurality of print jobs, and if there is no remaining print job, the first control The image forming apparatus according to claim 1, wherein: Storage means for storing a password for validating the change in the power usage state;
When the password is input together with the print job, the state transition control unit compares the input password with the stored password, and performs the first control when they match, and does not match The image forming apparatus according to claim 1 , wherein the first control is not performed. Display means for inquiring of a user whether or not to execute the change in the power usage state when the command is detected as a result of analysis by the print job analysis means;
An input means for receiving input from the user in response to the inquiry,
Said state transition control means immediately if there is an input of an execution instruction from the user, performs the first control, even when the input from the user is not a predetermined period of time, characterized in that said first control The image forming apparatus according to any one of claims 1 to 3 . Characterized in that it comprises a switching means for switching to enable or disable the ability to change the power use state immediately after the image formation based on the certain print job, the image forming apparatus of any one of claims 1 to 4. A print job analysis step for analyzing a print job including a command for instructing a change in the power usage state;
An image forming step of forming an image on a sheet based on the print job;
A state transition control step for performing a first control to change the power usage state of the apparatus based on the command detected as a result of analysis immediately after the image formation,
The type of change in the power usage state includes at least transition to power off and transition to energy saving mode,
In the state transition control step, when an error occurs during image formation in the image forming step , the first power consumption state of the apparatus is changed immediately after the error even if the image formation is not completed . There line the control of,
The method of operating an image forming apparatus, wherein the types of errors include at least no paper and paper jam .

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