JP5136638B2 - Power supply control device, image processing device, power supply control program - Google Patents

Description

  The present invention relates to a power supply control device, an image processing device, and a power supply control program.

  In Patent Document 1, the human body detection sensor that needs to be driven in the energy saving mode is time-division driven for the purpose of making the necessary minimum power, and if a human body is detected, the period of time division is shortened, etc. It describes that the average power of the human body detection sensor by time division drive is saved. Further, during operation of the device, the human body detection sensor is stopped to further save energy. In addition, in this patent document 1, there is no description about the energy-saving measure regarding job execution.

JP 2002-071833 A

  The present invention relates to a power supply control device, an image processing device, and a power supply capable of improving waste of power during processing in a processing unit when controlling power supply to the processing unit in a detection state of a moving body. The purpose is to obtain a control program.

The invention of claim 1 is supplied with power from the power supply unit, independently for a plurality of processing units which operate by the power, the power saving mode to pause the power supply mode or power supply for supplying power The power supply control means selectively executed, the detection means for detecting the moving body within a preset region, and the power supply control means are controlled based on the detection result of the moving body by the detection means and, as the target and a power supply mode switching instruction means for instructing a mode transition from one to the other of the power supply mode or the power saving mode, the processing unit for 稼 dynamic based on the job in which the moving body is a user instructs , based on the detected status of the moving body by the detection means, to perform the job and a control means for controlling the mode transition to control the power supply state of the unnecessary processing unit, the job Identify the processing amount, when the processing amount of the job exceeds the reference value, a power supply control device for permitting the execution of the mode transition control by said control means.

  According to a second aspect of the present invention, in the first aspect of the present invention, when the control unit stops detecting the moving body by the detection unit, the processing unit is unnecessary for the job and is in the power supply mode. When the mode is shifted to the power saving mode and the detection of the moving body by the detection means is restored, the processing unit shifted to the power saving mode is shifted to the power supply mode.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the processing amount of the job is the accumulated processing execution time from the start of execution of the job, or the processing of the job. It is converted from the consumption of the consumption medium consumed by.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the processing unit has at least two types depending on a time taken to shift from the power saving mode to the power supply mode. The control means controls the mode transition timing step by step based on the job processing amount.

A fifth aspect of the invention includes the power supply control device according to any one of the first to fourth aspects , wherein the processing device reads an image from a document image, based on image information. At least one of an image forming unit that forms an image on a recording sheet and a facsimile communication control unit that transmits an image to a transmission destination under a predetermined communication procedure, the image reading unit, the image The forming unit and the facsimile communication control unit cooperate with each other for image processing functions such as an image reading function, an image forming function, an image copying function, a facsimile receiving function, and a facsimile transmitting function, which are instructed by a user. The image processing apparatus executes the image processing function.

A sixth aspect of the present invention is a power supply control program that causes a computer to be executed as the power supply control device according to any one of the first to fourth aspects.

According to the present invention , when power supply to a processing unit is controlled in a detection state of a moving object, waste of power during processing in the processing unit can be improved.

Moreover, compared with the case where this configuration is not provided, it is possible to establish energy saving while maintaining convenience in the mode transition time.

1 is a connection diagram of a communication network including an image processing apparatus according to the present embodiment. 1 is a schematic diagram of an image processing apparatus according to the present embodiment. It is a block diagram which shows the structure of the control system of the image processing apparatus which concerns on this Embodiment. FIG. 3 is a schematic diagram for each function of a control system of a main controller and a power supply device according to the present embodiment. It is a flowchart which shows the electric power supply control routine performed at the time of the job execution instruction which concerns on this Embodiment. 10 is a flowchart showing a power supply control routine executed when a job execution instruction is given according to Modification 1. 10 is a flowchart showing a power supply control routine executed when a job execution instruction is given according to Modification 2. 10 is a flowchart illustrating a power supply control routine that is executed when a job execution instruction is given in Modification 3; It is a time chart which shows the Example of the electric power supply control of the modification 2 of FIG.

  As shown in FIG. 1, an image processing apparatus 10 according to the present embodiment is connected to a network communication network 20 such as the Internet. In FIG. 1, two image processing apparatuses 10 are connected, but this number is not limited and may be one or three or more.

  In addition, a plurality of PCs (personal computers) 30 as information terminal devices are connected to the network communication line network 20. In FIG. 1, two PCs 30 are connected, but this number is not limited and may be one or three or more. Further, the information terminal device is not limited to the PC 30 and does not need to be connected by wire. That is, it may be a communication network that transmits and receives information wirelessly.

  As shown in FIG. 1, in the image processing apparatus 10, for example, when data is transferred from the PC 30 to the image processing apparatus 10 remotely to perform an image formation (print) instruction operation, or a user (user) May stand in front of the image processing apparatus 10 and instruct various processes such as copying (copying), scanning (image reading), and facsimile transmission / reception by various operations.

  FIG. 2 shows an image processing apparatus 10 according to the present embodiment. The image processing apparatus 10 includes an image forming unit 240 that forms an image on recording paper, an image reading unit 238 that reads an original image, and a facsimile communication control circuit 236. The image processing apparatus 10 includes a main controller 200, and controls the image forming unit 240, the image reading unit 238, and the facsimile communication control circuit 236 to temporarily store image data of a document image read by the image reading unit 238. The stored image data or the read image data is sent to the image forming unit 12 or the facsimile communication control circuit 236.

  A network communication line network 20 such as the Internet is connected to the main controller 200, and a telephone line network 22 is connected to the facsimile communication control circuit 236. For example, the main controller 200 is connected to a host computer via the network communication line network 20 and receives image data or performs facsimile reception and facsimile transmission using the telephone line network 22 via the facsimile communication control circuit 236. Has a role to play.

  The image reading unit 238 receives a document table for positioning a document, a scan drive system that scans an image of the document placed on the document table and irradiates light, and light reflected or transmitted by scanning of the scan drive system. And a photoelectric conversion element such as a CCD for converting into an electrical signal.

  The image forming unit 240 includes a photoconductor. Around the photoconductor, a charging device that uniformly charges the photoconductor, a scanning exposure unit that scans a light beam based on image data, and the scanning exposure unit. An image developing unit that develops an electrostatic latent image formed by scanning exposure, a transfer unit that transfers a visualized image on a photoreceptor to a recording sheet, and a surface of the photoreceptor after transfer And a cleaning unit to perform. A fixing unit for fixing the image on the recording paper after transfer is provided on the recording paper conveyance path.

  In the image processing apparatus 10, an outlet 245 is attached to the tip of the input power supply line 244. By inserting the outlet 245 into the wiring plate 243 of the commercial power supply 242 wired up to the wall surface W, the image processing apparatus 10 The power supply is received from the commercial power source 242.

(Control system hardware configuration)
FIG. 3 is a schematic diagram of the hardware configuration of the control system of the image processing apparatus 10.

  The network line network 20 is connected to the main controller 200. A facsimile communication control circuit 236, an image reading unit 238, an image forming unit 240, and a UI touch panel 216 are connected to the main controller 200 via buses 32A to 32D such as a data bus and a control bus, respectively. In other words, the main controller 200 is the main body, and each processing unit of the image processing apparatus 10 is controlled.

  Further, the image processing apparatus 10 includes a power supply device 202, and is connected to the main controller 200 via a bus 32E. The power supply device 202 is supplied with power from the commercial power supply 242. In the power supply device 202, power supply lines 34 </ b> A to 34 </ b> D that supply power independently to the main controller 200, the facsimile communication control circuit 236, the image reading unit 238, the image forming unit 240, and the UI touch panel 216 are provided. Yes. For this reason, the main controller 200 individually supplies power to each processing unit (device) (power supply mode) or shuts off the power supply (power saving mode) to enable so-called partial power saving control.

  A human sensor 28 is connected to the main controller 200 to monitor the presence or absence of a person around the image processing apparatus 10. The human sensor 28 will be described later.

(Functional block diagram with a partial power-saving configuration)
FIG. 4 illustrates a processing unit (sometimes referred to as “device”, “module”, and the like) controlled by the main controller 200, and a power source 202 for supplying power to the main controller 200 and each device. It is a schematic block diagram which made the line a main body. In the present embodiment, the image processing apparatus 10 can supply or not supply power in units of processing units (partial power saving).

[Main controller 200]
As shown in FIG. 4, the main controller 200 includes a CPU 204, a RAM 206, a ROM 208, an I / O (input / output unit) 210, and a bus 212 such as a data bus and a control bus for connecting them. A UI touch panel 216 is connected to the I / O 210 via a UI control circuit 214. A hard disk (HDD) 218 is connected to the I / O 210. The functions of the main controller 200 are realized by the CPU 204 operating based on programs recorded in the ROM 208, the hard disk 218, and the like. Note that the image processing function may be realized by installing the program from a recording medium (CD-ROM, DVD-ROM, etc.) storing the program and operating the CPU 204 based on the program.

  A timer circuit 220 and a communication line I / F 222 are connected to the I / O 210. Further, the I / O 210 is connected to each device of a facsimile communication control circuit (modem) 236, an image reading unit 238, and an image forming unit 240.

  The timer circuit 220 measures the initial set time as an opportunity to put the facsimile communication control circuit 236, the image reading unit 238, and the image forming unit 240 into a power saving state (power supply non-supply state). .

  The main controller 200 and each device (facsimile communication control circuit 236, image reading unit 238, image forming unit 240) are supplied with power from the power supply device 202 (see the dotted line in FIG. 4). In FIG. 4, the power supply line is shown by one line (dotted line), but in reality it is two to three wires.

[Power supply device 202]
As shown in FIG. 4, the input power supply line 244 drawn from the commercial power supply 242 is connected to the main switch 246. When the main switch 246 is turned on, power can be supplied to the first power supply unit 248 and the second power supply unit 250.

  The first power supply unit 248 includes a control power generation unit 248A and is connected to the power supply control circuit 252 of the main controller 200. The power supply control circuit 252 supplies power to the main controller 200 and is connected to the I / O 210. According to the control program of the main controller 200, each device (facsimile communication control circuit 236, image reading unit 238, image forming unit 240). Switching control for conducting / non-conducting the power supply line to) is performed.

  On the other hand, a first sub power switch 256 (hereinafter also referred to as “SW-1”) is interposed in the power line 254 connected to the second power unit 250. This SW-1 is controlled to be turned on / off by the power supply control circuit 252.

  The second power supply unit 250 includes a 24V power supply unit 250H (LVPS2) and a 5V power supply unit 250L (LVPS1). The 24V power supply unit 250H (LVPS2) is a power supply mainly used for a motor or the like.

  The 24V power supply unit 250H and the 5V power supply unit 250L (LVPS1) of the second power supply unit 250 are selectively connected to the image reading unit 258, the image forming unit 260, the facsimile communication control circuit unit 264, and the UI touch panel 216. .

  The image reading unit 258 is connected to the image reading unit 238 through a second sub power switch 268 (hereinafter also referred to as “SW-2”) using the 24V power supply unit 250H (LVPS2) as an input source. ing.

  The image forming unit 260 uses the 24V power supply unit 250H (LVPS2) and the 5V power supply unit 250L (LVPS1) as input sources via a third sub power switch 270 (hereinafter also referred to as “SW-3”). Are connected to the image forming unit 240.

  The facsimile communication circuit unit 264 uses the 24V power supply unit 250H (LVPS2) and the 5V power supply unit 250L (LVPS1) as input sources via a fifth sub power switch 274 (hereinafter sometimes referred to as “SW-5”). The facsimile communication control circuit 236 and the image forming unit 240 are connected.

  The UI touch panel power supply unit 266 uses a 5V power supply unit 250L (LVPS1) and a 24V power supply unit 250H (LVPS2) as input sources and a sixth sub power switch 276 (hereinafter sometimes referred to as “SW-6”). Via the UI touch panel 216.

  Similarly to the first sub power switch 256, the second sub power switch 268, the third sub power switch 270, the fifth sub power switch 274, and the sixth sub power switch 276 are the main controller 200. On / off control is performed based on the power supply selection signal from the power supply control circuit 252. Although not shown, the switches and wirings to which the 24V power supply unit and the 5V power supply unit are supplied are configured in two systems. Further, the power switches 268 to 276 may be arranged in each device to which power is supplied instead of the power supply device.

  In the above configuration, power is supplied to select each device (facsimile communication control circuit 236, image reading unit 238, image forming unit 240) for each function, and power is not supplied to devices unnecessary for the instructed function. Minimal power is required.

(Supervisory control)
Here, the main controller 200 of the present embodiment may partially stop its function so as to achieve the minimum necessary power consumption. Alternatively, the power supply may be stopped including most of the main controller 200. These may be collectively referred to as “power saving mode (sleep mode)”.

  The power saving mode can be shifted, for example, by starting a timer when the image processing is completed. That is, the power supply is stopped by counting a predetermined time after the timer is started. If there is any operation (hard key operation, etc.) before the predetermined time elapses, the timer count to the power saving mode is naturally canceled and the timer is started from the end of the next image processing.

  On the other hand, during the power saving mode, the power saving monitoring control unit 24 is connected to the I / O 210 as an element that always receives power. The power-saving monitoring control unit 24 can be configured by, for example, an ASIC, which is called an ASIC, stores an operation program by itself and is processed by the operation program, an IC chip including a CPU, a RAM, a ROM, and the like. .

  By the way, in the monitoring during power saving, for example, a print request is received from the communication line detection unit or a FAX reception request is received from the FAX line detection unit. The unit 24 includes a first sub power switch 256, a second sub power switch 268, a third sub power switch 270, a fourth sub power switch 272, a fifth sub power switch 274, and a sixth sub power switch. It is assumed that power is supplied by controlling 276.

  Further, a power saving cancel button 26 is connected to the I / O 210 of the main controller 200, and the user can cancel power saving by operating the power saving cancel button 26 during power saving.

  Here, in order to monitor in the power saving mode, it is premised that the power saving button and each detection unit, in addition to the power saving monitoring control unit 24, are supplied with the minimum necessary power during power saving.

  Therefore, even in the power saving mode, the minimum necessary power supply mainly based on the input system such as the UI touch panel 216 is currently supplied.

  Furthermore, when the user stands in front of the image processing apparatus 10 in the power saving mode and then operates the power saving release button 26 to restart the power supply, it may take time until the image processing apparatus 10 starts up. .

    Therefore, in the present embodiment, a human sensor 28 is installed in the power saving monitoring control unit 24, and in the power saving mode, the human sensor detects it before the user presses the power saving release button to quickly The supply was resumed so that users could use it quickly.

  The human sensor 28 includes a detection unit 28A and a circuit board unit 28B, and the circuit board unit 28B adjusts the sensitivity of the signal detected by the detection unit 28A and generates an output signal.

  It should be noted that the human sensor 28 is “human feeling”, but this is a proper noun in accordance with the present embodiment, and it is sufficient that at least a person can sense (detect), in other words, a moving object other than a person. It also includes sensing (detection). Therefore, in the following, the detection target of the human sensor may be referred to as “person”, but in the future, a robot or the like that executes on behalf of a person is also within the detection target range. On the other hand, when there is a special sensor that can be identified and identified as a person, the special sensor can be applied.

  The specification of the human sensor 28 is to detect the movement of a person around the image processing apparatus 10. In this case, an infrared sensor using the pyroelectric effect of the pyroelectric element is representative.

  The greatest feature of the sensor using the pyroelectric effect of this pyroelectric element is that the detection area is wide. Further, in order to sense the movement of a person, the presence of the person is not detected if the person is stationary within the detection region. For example, when a high-level signal is output when a person moves, the signal becomes a low-level signal when a person within the detection range stops.

  The specification of the human sensor 28 may detect the presence or absence (presence / absence) of a person. Such a sensor is typically a reflective sensor having a light projecting unit and a light receiving unit. Note that the light projecting unit and the light receiving unit may be separated.

  The greatest feature of this reflective sensor or the like is that the presence or absence of a person is reliably detected by blocking / not blocking light entering the light receiving unit. In addition, since the amount of light incident on the light receiving unit is limited by the amount of light projected from the light projecting unit, a relatively short distance is the detection region.

  Further, a plurality of human sensors 28 may be installed regardless of the same specification or different specifications.

  Here, the human sensor 28 mounted on the image processing apparatus 10 of the present embodiment is connected to the power saving monitoring control unit 24 as described above, and the detection signal thereof is sent to the power saving monitoring control unit 24. It is designed to be entered.

  The power-saving monitoring control unit 24 determines the approach of the person and the will of the operation based on the signal from the human sensor 28.

  For example, the human sensor 28 is fixedly attached to the back side, that is, the lower side with respect to the operation panel provided on the upper side on the front side of the image reading unit 238 of the image processing apparatus 10 (FIGS. 1 and 2). reference).

  The detection optical axis of the human sensor 28 is directed to the front of the apparatus where a user who performs an operation standing in front of the image processing apparatus 10 is expected (see detection area M in FIG. 1). The detection area M can be changed depending on the mounting position of the human sensor 28, the direction of the optical axis at the time of mounting, and the human sensor 28 is installed on the ceiling or the like away from the image processing apparatus 10, for example. It may be a configuration.

  By the way, in the image processing apparatus 10, a person's movement may differ according to the installation place. That is, the image processing apparatus 10 varies depending on the environment of the installation location (for example, an office). The fact that it differs depending on the environment means that a person other than the person who operates the actual image processing apparatus 10 (for example, a person who simply passes by or a person who hardly approaches the image processing apparatus 10) is detected by the human sensor 28. There is a possibility of detection.

  Furthermore, the movement of a person in the vicinity of the image processing apparatus 10 may vary depending on the frequency of use of the image processing apparatus 10. For example, when a person approaches to some extent, the ratio between the purpose of operation of the image processing apparatus 10 and the case of not being an operation purpose is different.

  For this reason, it is preferable to have a structure in which the sensitivity of the human sensor 28 can be adjusted based on the installation state of the image processing apparatus 10.

  As described above, in the image processing apparatus 10 according to the present embodiment, when the image processing is completed, the timer is started and the power saving mode after a predetermined time is entered, and the human sensor 28 surrounds the image processing apparatus 10. Since the person has entered the detection area M, the transition to the power supply mode is repeated.

  By the way, in the transition to the power saving mode by the timer described above, it is assumed that not all processing units are operating. In other words, unless a specific process is designated from the power saving mode, the image forming unit that does not require power supply is not started when the image reading process is performed after the copying process is performed. 240 and the facsimile communication control circuit 236 are supplied with power. In this case, it cannot be said that the function of partial power saving is fully exhibited.

  However, on the other hand, depending on the next job, it may be better to continue supplying power to a processing unit that is not operating.

  Therefore, in the present embodiment, based on the detection information of the human sensor 28, the responsible user for the job that is currently being processed (the user who is waiting in response to an instruction to execute processing in front of the image processing apparatus 10). If it is determined whether there is a person who is away from the image processing apparatus 10 even though the process is in progress (the person sensor 28 has not detected a person), a process temporarily unnecessary for the process The power supply to the part was cut off.

  In addition, when the user returns (detects a person with the human sensor 28), the power supply to the processing unit that cuts off the power supply is resumed.

  The operation of this embodiment will be described below.

    In the image processing apparatus 10 according to the present embodiment, when predetermined conditions are met, the image processing apparatus 10 shifts to a power saving mode (sleep mode). In this power saving mode, the facsimile communication control circuit 236, the image reading unit 238, and the image forming unit 240 except the communication line detection unit, the FAX line detection unit, the power saving button, the power saving monitoring control unit, and the like that are requested to return from the power saving mode. Power supply to the controller 200 and the UI touch panel 216 is cut off.

  FIG. 5 is a flowchart showing a power supply control routine executed when a job execution instruction is given according to the present embodiment.

  In step 100, a job start process is executed, and in the next step 102, it is determined whether or not the job is being executed.

  If a negative determination is made in step 102, the process proceeds to step 128. The processing after step 128 will be described later. If the determination in step 102 is affirmative, the process proceeds to step 104 to acquire detection information of the human sensor 28, and then the process proceeds to step 106 to move the moving object (that is, preferably the use of the image processing apparatus 10). It is determined whether or not a person is detected.

  If it is determined in step 106 that a person is detected, it is determined that the job processing instructor is facing the image processing apparatus 10 as a user, and the process returns to step 102.

  If it is determined in step 106 that no person has been detected, it is determined that the job processing instructor has moved away from the image processing apparatus 10 (no person is present), and the process proceeds to step 108.

  In step 108, the job type being executed is specified, and then processing is distributed based on the job type specified in step 110.

  That is, if it is determined in step 110 that the job type is “SCAN” or “FAX transmission” (image reading job, facsimile transmission job), the process proceeds to step 112, and it is not necessary to supply power to this job type. Then, the UI touch panel 216 and the image forming unit 240 are selected as processing units (modules), set as power saving targets, and the process proceeds to step 118.

  If it is determined in step 110 that the job type is “PRINT” (image recording job), the process proceeds to step 114, and the job type does not need to be supplied with power and serves as a processing unit (module) as a UI. The touch panel 216, image reading 238, and facsimile communication control circuit 236 are selected and set as power saving targets, and the process proceeds to step 118.

  Further, if it is determined in step 110 that the job type is “COPY” (image copy job), the process proceeds to step 116, and it is not necessary to supply power to this job type, and the UI (UI) functions as a processing unit (module). The touch panel 216 and the facsimile communication control circuit 236 are selected, set as power saving targets, and the process proceeds to step 118.

  In step 118, the power saving transition process of the processing unit that is the power saving target in any one of steps 112, 114, and 116 is executed, and the process proceeds to step 120.

  In Step 120, following Step 104, the detection information of the human sensor 28 is acquired again, and then the process proceeds to Step 122 to detect a moving body (that is, preferably a user of the image processing apparatus 10). It is determined whether or not.

  If it is determined in step 122 that a person is detected, it is determined that the job processing instructor (user) has returned to the image processing apparatus 10, and the process proceeds to step 124. The restoration process of the executed power saving processing target processing unit is executed, and the process proceeds to step 102.

  If it is determined in step 122 that no person is detected, it is determined that the user who has left the image processing apparatus 10 from the job processing instructor has not returned, and the process proceeds to step 126.

  In step 126, it is determined whether or not the job is still being executed. If the determination is affirmative, the process proceeds to step 122.

  On the other hand, if the determination in step 126 is negative, that is, if it is determined that the job has ended, the process proceeds to step 128. This step 128 also proceeds in the negative determination of step 102.

  In step 128, job end processing is executed, and then the process proceeds to step 130 to determine whether or not there is a next job execution instruction. If an affirmative determination is made in step 130, the routine returns to step 100, and this routine is executed from the beginning. If a negative determination is made in step 130, the process proceeds to step 132, where it is determined whether there is no processing for a predetermined time. If a negative determination is made, the process returns to step 130, and an affirmative determination is made in step 130. Alternatively, steps 130 and 132 are repeated until an affirmative determination is made in step 132.

  If the determination in step 132 is affirmative, it is determined that the next job processing has been completed and a predetermined time has elapsed, and the processing proceeds to step 134 where power saving transition processing is performed for all processing units, and the image processing apparatus 10 This routine ends with the sleep state. In the present embodiment, the sleep state of the image processing apparatus 10 is a state in which power is supplied to only a minimum area of the main controller 200 (such as the monitoring control unit 24), the power saving button, and the line detection unit. It becomes. As shown in FIG. 5, for example, when a user reads a large amount of originals with SCAN, it may take a long time to move away from the image processing apparatus, but the image forming unit or the like can be saved during the job according to the absence. . Further, since the state returns to the original state when returning to the job, it is possible to continue the next job without waiting for the image forming unit to return after the job is completed.

(Modification 1)
FIG. 6 is a flowchart showing a modified example (modified example 1) of the power supply control routine executed when the job execution instruction described in FIG. 5 is given.

  In the above embodiment, when the responsible user of the job currently being processed before the image processing apparatus 10 is absent (when the reference time has elapsed since the absence), the non-executed processing unit is targeted. As a power saving process.

  On the other hand, in the first modification, in addition to the power saving process condition of “absence of person” in the above-described embodiment, the processing amount of the job that is currently being executed is determined.

  In FIG. 6, steps that execute the same processing as the steps shown in the flowchart shown in FIG. 5 are denoted by “A” after the same reference numerals, and description thereof is omitted.

  In FIG. 6, step 150 is added between step 106A and step 108A.

  If it is determined in step 106A that no person is detected, the process proceeds to step 150. In step 150, it is determined whether or not the processing amount of the job currently being executed is equal to or greater than a reference value. If a negative determination is made, the process proceeds to step 102A, and if an affirmative determination is made, the process proceeds to step 108A.

  As the reference value of the processing amount, for example, (1) 20 seconds or more have elapsed since the start of the job, (2) the number of processed sheets is 50 sheets or more, and (3) the processing time is 20 seconds or more using the converted value from the processed number of sheets. However, it is not limited to the conditions (1) to (3). As shown in FIG. 6, when the job processing amount is smaller than the reference value, power is not saved even if there is no person, so power saving is restored even if the user leaves the image processing apparatus during preparation of the next document during execution of a short job. There is no waiting time. Energy savings for long jobs and convenience for short jobs can be handled automatically.

(Modification 2)
FIG. 7 is a flowchart showing a modified example (modified example 2) of the power supply control routine executed when the job execution instruction described in FIG. 5 is given.

  In the above embodiment, when the responsible user of the job currently being processed before the image processing apparatus 10 is absent (when the reference time has elapsed since the absence), the non-executed processing unit is targeted. As a power saving process.

  On the other hand, in the second modification, in addition to the power saving process condition of “absence of person” in the above embodiment, whether or not the absence has continued beyond the reference value since the absence has been determined. It is in the point.

  In FIG. 7, steps that execute the same processing as the steps shown in the flowchart shown in FIG. 5 are denoted by the same reference numerals with “B” and description thereof is omitted.

  In FIG. 7, step 152 is added between step 106B and step 108B.

  If it is determined in step 106B that no person is detected, the process proceeds to step 152. In step 152, it is determined whether or not undetected (absence time) is equal to or greater than a reference value. If a negative determination is made, the process proceeds to step 102B. If an affirmative determination is made, the process proceeds to step 108B.

  As a reference value for the absence time, for example, 10 seconds or more after it has not been detected can be cited, but it is not limited to this condition.

(Modification 3)
FIG. 8 is a flowchart showing a modified example (modified example 1) of the power supply control routine executed when the job execution instruction described in FIG. 5 is given.

  In the above embodiment, when the responsible user of the job currently being processed before the image processing apparatus 10 is absent (when the reference time has elapsed since the absence), the non-executed processing unit is targeted. As a power saving process.

  On the other hand, in the third modification, in addition to the condition of the power saving process of “absence of person” in the above embodiment, the processing amount of the job currently being executed is determined, and the stage ( Process 1 and process 2) are set.

  The process 1 is a power saving transition for a processing unit whose recovery time is early from the power saving state, and includes a UI touch panel 216.

  On the other hand, the process 2 is a power saving transition for a processing unit whose recovery time is slow from the power saving state, and includes a facsimile communication control circuit 236, an image reading unit 238, and an image forming unit 240.

  Note that, depending on the model of the image processing apparatus 10, the image reading unit 238 may be classified as having a faster return time.

  In FIG. 8, steps that execute the same processing as the steps shown in the flowchart shown in FIG. 5 are denoted by the same reference numerals with “C”, and description thereof is omitted.

  In FIG. 8, processing is added between Step 106C and Step 118C.

  If it is determined in step 106C that no person is detected, the process proceeds to step 154. In step 154, the type of job being executed is specified, and then the process proceeds to step 156, a processing unit with a fast return time is set as a power saving target (process 1), and the process proceeds to step 158.

  In step 158, it is determined whether or not the processing amount of the job currently being executed is greater than or equal to the reference value. If a negative determination is made, the process proceeds to step 160. If an affirmative determination is made, the process proceeds to step 162.

  As the reference value of the processing amount, for example, (1) 20 seconds or more have elapsed since the start of the job, (2) the number of processed sheets is 50 sheets or more, and (3) the processing time is 20 seconds or more with the converted value from the processed number However, it is not limited to the conditions (1) to (3).

  In step 160, detection information of the human sensor 28 is acquired, and then the process proceeds to step 164, where it is determined whether or not a moving body (that is, preferably a user of the image processing apparatus 10) has been detected.

  If it is determined in step 164 that a person is detected, the process proceeds to step 166, the return process of process 1 is executed, and the process proceeds to step 100C.

  If it is determined in step 164 that no person is detected, the process proceeds to step 158C.

  On the other hand, in step 162, the job type being executed is specified, and then the processing is distributed based on the job type specified in step 168.

  That is, if it is determined in step 168 that the job type is “SCAN” or “FAX transmission” (image reading job, facsimile transmission job), the process proceeds to step 170, and it is not necessary to supply power to this job type. The image forming unit 240 is selected as a processing unit (module), set as a power saving target (process 2), and the process proceeds to step 118C.

  If it is determined in step 168 that the job type is “PRINT” (image recording job), the process proceeds to step 172, where the image reading is performed as a processing unit (module) that does not require power supply to the job type. 238, the facsimile communication control circuit 236 is selected, set as a power saving target (process 2), and the process proceeds to step 118C.

  Further, if it is determined in step 168 that the job type is “COPY” (image copy job), the process proceeds to step 174, and facsimile communication is performed as a processing unit (module) that does not require power supply to this job type. The control circuit 236 is selected, set as a power saving target (process 2), and the process proceeds to step 118C.

  FIG. 9 is a timing chart showing an example of state transition based on the power supply control routine of FIG. 7 (Modification 2).

  The situation is a transition when the user who occupies the image processing apparatus 10 executes jobs in the order of user A → user B → user C → user D while the image processing apparatus 10 is in the sleep state.

  User A executes a “SCAN” job and then a “COPY” job as job types. For this reason, the processing unit first activates the UI touch panel 216 necessary for the “SCAN” job and the image reading unit 238 (the other facsimile communication control circuit unit 236 and the image forming unit 240 maintain power saving).

  When the “SCAN” job of user A is completed, the UI touch panel 216, the image reading unit 238, and the image forming unit 240 necessary for the “COPY” job are operated (the other facsimile communication control circuit unit 236 saves power). Maintenance).

  Subsequently, the next user B executes a “SCAN” job as a job type and subsequently a “(server) PRINT” job. The “(server) PRINT” job is to read out information stored in the server in advance by the user B from the image processing apparatus 10 and form an image.

  Here, since the processing unit can execute the “SCAN” job in the processing unit currently operating (at the end of the processing of the user A), the processing is continued.

  During the execution of the “SCAN” job of the user B, if the user B leaves the image processing apparatus 10 and the time ta becomes longer than the reference time (ta> ts “ts is a reference value”), the “ The UI touch panel 216 and the image forming unit 240 which are processing units unnecessary for the “SCAN” job are shifted to the power saving mode.

  When the user B (who is predicted) returns to the image processing apparatus 10, the operating state at the start of the “SCAN” job is restored.

  When the “SCAN” job of user B is completed, the UI touch panel 216 necessary for the “(server) PRINT” job and the image forming unit 240 are operated (the other facsimile communication control circuit unit 236 maintains power saving). .

  When the job processing of the user B is completed, when a sleep transition time (for example, about 1 to 10 minutes) elapses, the sleep mode is set, and all the processing units are in a power saving state.

  Next, during the sleep mode, the user C executes “(server) PRINT” as the job type. Therefore, the processing unit operates the UI touch panel 216 necessary for the “(server) PRINT” job and the image forming unit 240 (the other facsimile communication control circuit unit 236 and the image reading unit 238 maintain power saving).

  After the user C's job is completed, finally, the user D executes a “SCAN” job and then a “(server) PRINT” job as a job type. For this reason, the processing unit first activates the UI touch panel 216 necessary for the “SCAN” job and the image reading unit 238 (maintaining the other facsimile communication control circuit unit 236).

  Even when the user D leaves the image processing apparatus 10 during the execution of the “SCAN” job of the user D, the separated time tb is shorter than the reference time (ts> tb “ts is a reference value”). Unlike the case of the user B, the UI touch panel 216 and the image forming unit 240 that are unnecessary for the “SCAN” job being executed are not shifted to the power saving mode.

  When the “SCAN” job of the user D is completed, the UI touch panel 216 necessary for the “(server) PRINT” job and the image forming unit 240 are operated (the other facsimile communication control circuit unit 236 maintains power saving).

W Wall surface 10 Image processing device 20 Network communication line network 22 Telephone line network 24 Monitoring control unit 26 Power saving release button 28 Human sensor 30 PC
REFERENCE SIGNS LIST 50 Image processing status recognition unit 52 In-operation processing unit identification unit 54 In-power supply / non-operation processing unit identification unit 56 In-power supply processing unit recognition unit 58 Judgment unit 60 In-process human sensor output signal acquisition unit 62 Signal distribution Unit 64 Timer management unit 66 Mode transition instruction unit 200 Main controller 204 CPU
206 RAM
208 ROM
210 I / O (input / output unit)
212 Bus 214 UI Control Circuit 216 UI Touch Panel 218 Hard Disk 220 Timer Circuit 222 Communication Line I / F
236 Facsimile communication control circuit 238 Image reading unit 240 Image forming unit 242 Commercial power supply 243 Wiring plate 244 Input power supply line 245 Outlet 246 Main switch 248 First power supply unit 250 Second power supply unit 248A Control power generation unit 252 Power supply control Circuit (Power supply control means)
254 Power line 256 First sub power switch ("SW-1")
250H 24V power supply (LVPS2)
250L 5V power supply (LVPS1)
258 Image reading function power supply unit 260 Image forming function power supply unit 262 Image copying function power supply unit 264 Facsimile reception function power supply unit 266 Facsimile transmission function power supply unit 268 Second sub power switch (“SW-2”)
270 Third sub power switch ("SW-3")
274 Fifth sub power switch ("SW-5")
276 Sixth sub power switch ("SW-6")

Claims (6)

Power supply control means for receiving power supplied from a power supply unit and selectively executing a power supply mode for supplying power or a power saving mode for stopping power supply independently to a plurality of processing units operating with the power When,
Detecting means for detecting a moving body within a preset region;
Based on the detection result of the moving body by the detection means, the power supply control means is controlled to instruct the mode shift from one of the power supply mode or the power saving mode to the other;
As a target processing unit to 稼 dynamic based on the job the user instructs the is a mobile, based on the detected status of the moving body by the detection unit, the power supply unnecessary processing unit to execute the job Control means for controlling mode transition so as to control the state ,
Identify the job throughput,
A power supply control device that permits execution of mode transition control by the control means when the job processing amount exceeds a reference value . The control means is
When the detection of the moving body by the detecting means is interrupted, the processing unit unnecessary for the job and in the power supply mode is shifted to the power saving mode,
The power supply control device according to claim 1, wherein when the detection of the moving body by the detection unit is restored, the processing unit that has shifted to the power saving mode shifts to the power supply mode. 3. The power according to claim 1 , wherein the processing amount of the job is converted from a cumulative processing execution time after the execution of the job is started or a consumption amount of a consumption medium consumed by the processing of the job. Supply control device. The processing unit is classified into at least two types of processes according to the time taken to shift from the power saving mode to the power supply mode, and the control means determines the mode transition timing step by step based on the processing amount of the job. The power supply control device according to any one of claims 1 to 3 , which is controlled. An image reading unit comprising the power supply control device according to any one of claims 1 to 4 , wherein the processing device reads an image from a document image, and an image that forms an image on a recording sheet based on image information A forming unit, and at least one facsimile communication control unit that transmits an image to a transmission destination under a predetermined communication procedure. The image reading unit, the image forming unit, and the facsimile communication control unit The image processing function instructed by the user is executed in cooperation with the image processing functions of the image reading function, the image forming function, the image copying function, the facsimile receiving function, and the facsimile transmitting function. Processing equipment. The power supply control program which makes a computer perform as a power supply control apparatus of any one of the said Claims 1-4 .