CN100517095C - Image forming device and method for controlling the image forming device - Google Patents
Image forming device and method for controlling the image forming device Download PDFInfo
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- CN100517095C CN100517095C CNB2006101002669A CN200610100266A CN100517095C CN 100517095 C CN100517095 C CN 100517095C CN B2006101002669 A CNB2006101002669 A CN B2006101002669A CN 200610100266 A CN200610100266 A CN 200610100266A CN 100517095 C CN100517095 C CN 100517095C
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Abstract
In an image forming device including a system control unit, an image formation unit forming an image on a recording sheet using a predetermined process, an image forming control unit controlling image formation, and a power supply unit supplying power to the image formation unit, the image forming control unit, and the system control unit in response to a control signal. A return factor monitoring unit detects occurrence of a return factor to a normal mode during a power saving mode, and outputs a notification signal indicating return factor information relating to a detected return factor, to the image forming control unit before starting of the system control unit is completed. An initialization necessity judgment unit determines whether initializing the predetermined process is needed at a time of returning to the normal mode, based on the return factor information.
Description
Technical field
The present invention relates to have the imaging device of battery saving mode, comprise printing equipment, facsimile unit, copy device and digital copier, and relate to the method for controlling this imaging device.
Background technology
In recent years, from the environmental protection viewpoint, very big demand is arranged for the power saving of imaging device.In the situation of the imaging device that utilizes electrofax to handle, the energy consumption of its fixation unit (fixing unit) is main.The widely used method of power saving that obtains imaging device is: forbid or stop the supply of power supply, thus lower in the temperature of the fixation unit of standby than the temperature of fixation unit under enable mode.
Recently, proposed a kind of imaging device, during battery saving mode, not only stopped providing electric energy, and stopped providing electric energy to whole imaging device or its most of functional part to the photographic fixing unit.For example, referring to Japanese publication number be the patented claim of 11-126000.
According to aforesaid imaging device, the energy consumption under the standby mode can be reduced to less than several watts (w) at battery saving mode by imaging device is set, and can increase power saving effect.
Yet, even do not need initialization process that electrofax handles (for example by system control unit detected factor (returnfactor) of returning during battery saving mode, when the device management instruction that receives from the external device (ED) that is connected to this imaging device by network such as the antiquarian the inquiry main portion carton), control unit of engine begins to carry out the initialization that electrofax is handled when it starts as early as possible, and the startup of waiting system control module is not finished.For this reason, in the example of above-mentioned imaging device, have such problem: supporter's initialization process may produce unnecessary energy consumption or produce noise.
Summary of the invention
According to an aspect of of the present present invention, a kind of improved imaging device and control method thereof are provided, eliminated above-mentioned problem.
According to an aspect of of the present present invention, a kind of imaging device is provided, wherein under battery saving mode, stop to the CPU of system control unit supply of electrical energy, imaging device be suitable for take place during the battery saving mode to normal mode return factor the time suppress the unnecessary initialization that electrofax is handled effectively, thereby can reduce energy consumption and can suppress generating noise.
Solving or reducing in one embodiment of the present of invention of one or more the problems referred to above, a kind of imaging device is provided, comprising: system control unit; Image-generating unit uses predetermined process that image is formed on the recording chart; The imaging control module is controlled the imaging of this image-generating unit; Power supply unit, response provides electric energy to image-generating unit, imaging control module and system control unit from the control signal that system control unit receives at least; Return the factor monitoring unit, be arranged in the system control unit, during battery saving mode, detect to the generation of the factor of returning of normal mode, wherein, when in the generation that detects during the battery saving mode to the factor of returning of normal mode, this returned the factor monitoring unit before system control unit is finished startup, and the notification signal that returns factor information that the output indication is relevant with the factor of returning of this detection is given the imaging control module; With initialization necessity judging unit,, determine when turning back to normal mode, whether to need this predetermined process of initialization based on the factor information of returning of notification signal indication.
Above-mentioned imaging device can be configured to: setting is returned the factor monitoring unit and is used for transmitting the width-modulation pulse that return factor information relevant with the factor of returning of this detection to the imaging control module by the output of one or more communication line.
Above-mentioned imaging device can be configured to: the error-detecting unit is provided, determines to have occurred mistake when the cycle is continuously high level or low level at a fixed time at the width-modulation pulse that returns the output of factor monitor unit.
Above-mentioned imaging device can be configured to: even also provide electric energy to returning the factor monitoring unit at this power supply unit of battery saving mode, thereby the factor monitor unit of returning is operated in battery saving mode.
Above-mentioned imaging device can be configured to: when returning the factor monitoring unit detect the generation of the factor of returning of normal mode during battery saving mode, system control unit control power supply unit restarts electric energy to be provided at least image-generating unit, imaging control module and system control unit.
Above-mentioned imaging device can be configured to: provide initialization necessity judging unit based on that the factor monitoring unit receives from returning, determine that as the indicated sign indicating number of the digital signal of notification signal the electrofax that whether needs the initialization image-generating unit to use handles when returning normal mode.
Above-mentioned imaging device can be configured to: provide initialization necessity judging unit based on that the factor monitoring unit receives from returning, determine that as the pulse width of the digital signal of notification signal the electrofax that whether needs the initialization image-generating unit to use handles when returning normal mode.
Above-mentioned imaging device can be configured to: supply of electrical energy is to image-generating unit, imaging control module and system control unit at least at normal mode to provide the factor monitoring unit of returning to be used to control power supply unit, and the control power supply unit stops supply of electrical energy at battery saving mode and gives image-generating unit, imaging control module and system control unit.
Above-mentioned imaging device can be configured to: the imaging control module is connected to system control unit by command link.
In addition, solving or reducing in one embodiment of the present of invention of one or more the problems referred to above, provide the method for control imaging device, this imaging device comprises: system control unit; Image-generating unit uses predetermined process that image is formed on the recording chart; The imaging control module is controlled the imaging of this image-generating unit; Power supply unit, response provides electric energy to image-generating unit, imaging control module and system control unit from the control signal that system control unit receives at least; Return the factor monitoring unit, be arranged in the system control unit, during battery saving mode, detect to the generation of the factor of returning of normal mode, this method comprises: when in the generation that detects during the battery saving mode to the factor of returning of normal mode, before system control unit was finished startup, the notification signal that returns factor information that the output indication is relevant with the factor of returning of this detection was given the imaging control module; With returning factor information and determine when returning normal mode, whether to need this predetermined process of initialization based on notification signal indication.
According to the embodiment of imaging device of the present invention and control method thereof, can only when requiring imaging, the factor of returning to normal mode carry out the initialization that electrofax is handled.When the factor of returning to normal mode does not require imaging, forbid the unnecessary initialization that electrofax is handled, thereby can reduce energy consumption, and the generating noise of can drawing up.
Description of drawings
Other purposes of the present invention, feature and advantage will be more obvious from the following detailed description when reading in conjunction with the accompanying drawings.
Fig. 1 is the block scheme that shows the composition of the imaging device in the embodiments of the invention.
Fig. 2 is that the synoptic diagram of the digital signal of a discrete sign indicating number separately of carrying as the Notification Method of notification signal used in explanation, and this yard is assigned to the contingent different factor of returning to normal mode during battery saving mode respectively.
Fig. 3 A, 3B and 3C are that the synoptic diagram of a width-modulation pulse as the Notification Method of notification signal used in explanation, in this width-modulation pulse, discrete pulse width separately is assigned to the contingent factor of returning to normal mode during battery saving mode respectively.
Fig. 4 is the block scheme that shows that the function of the error-detecting unit in the control unit of engine of the imaging device be provided at embodiments of the invention is formed.
Fig. 5 A and 5B are the synoptic diagram of waveform that is presented at the waveform of the notification signal that sends to control unit of engine under the normal condition respectively and sends to the notification signal of control unit of engine under error condition.
Fig. 6 be explanation take place during the battery saving mode to normal mode return factor the time, the process flow diagram of the processing that the control unit of engine of imaging device of the present invention is carried out.
Fig. 7 be the explanation take place during the battery saving mode to normal mode return factor the time, the sequential chart of the operation of the control unit of engine of imaging device of the present invention.
Fig. 8 is the process flow diagram of the processing carried out of the control unit of engine of explanation imaging device of the present invention.
Fig. 9 is the block scheme of the composition of display digit duplicating machine.
Figure 10 is the block scheme that shows the composition of another digital copier.
Figure 11 be the explanation take place during the battery saving mode to normal mode return factor the time, the sequential chart of the operation of imaging device.
Embodiment
Before describing embodiments of the invention, provide the description of the imaging device of correlation technique, so that by more better understanding the present invention.
Fig. 9 shows the composition as the digital copier of the imaging device of correlation technique.In this digital copier 50 of Fig. 9, the view data of document 70 is read by reading control module 51, and carry out the Flame Image Process of this view data by the image processing part of control unit of engine 56 (figure does not show), and the image data transmission of this processing is to writing control module 57.
Write control module 57 and carry out the emission control of laser diode, thereby use known electrofax processor 61 to be used to upward form the electrostatic latent image image at photoconductor (figure does not show) from the laser beam of writing control module 57 based on the view data that graphics processing unit sends.
In this electrofax processor 61, the surface of photoconductor is recharged, and the charging surface of this photoconductor is exposed to laser beam, and this electrostatic latent image image is formed on this photoconductor surface.The electrostatic latent image imagery exploitation toner development of this formation, and form toner image.The toner image of this formation is sent on the record sheet (copy paper) that transmits from form feeder 55, and the fixation unit (figure does not show) by fixing heater 59 heating with this toner image on this record sheet, copy 71 thereby generate.
This fixing heater 59 is by control unit of engine 56 and 58 controls of photographic fixing control module, thereby fixation unit maintains desired temperatures during operation.
Imaging operation above-mentioned is by system control unit 64 control, thereby can obtain the adjusting of the various patterns of the storage of view data and processing and operation.
On the guidance panel 62 of realizing user interface, input block on guidance panel and display (both does not show) are to be controlled by the guidance panel control module 63 that is arranged in the guidance panel 62.Similar to imaging operation, from the input data of the input block of guidance panel 62 input and the video data of display that exports guidance panel 62 to by system control unit 64 controls.
First to the 3rd external interface 65-67 is connected to system control unit 64 respectively, so that connect digital copier 50 and external device (ED), and for example printer or facsimile recorder, thus can between digital copier 50 and external device (ED), carry out data communication by network.When request comprises the operation of printing, facsimile transmission and external device (ED) reception, by system control unit 54 control figure duplicating machine 50, thus the operation of realization multi-function peripheral device.
Battery saving mode in the digital copier of Fig. 9 will be described below.
Usually, in battery saving mode,, or stop the power supply supply and reduce energy consumption by the temperature of temperature when being lower than imaging operation of control fixing heater 59.This battery saving mode also is called pass pattern (off-mode) or park mode.
During battery saving mode, stop to provide the part of electric energy to digital copier 50, rather than system control unit 54, detect normal mode and return the sensor 52 of generation of incident (being called the factor of returning) and the part of first to the 3rd external interface 65-67, reduced electrical source consumption significantly.
In the example of the digital copier of Fig. 9, when keeping (activation) during the battery saving mode during when the signal of sensor 52 outputs of the generation of the factor of returning that detects normal mode, the generation of one of factor is returned in response, and system controller 64 is kept the power control signal that exports power supply 60 to.And, recover from power supply to the engine control power supply 56 and comprise that the electric energy of the image-generating unit of electrofax processor 61 supplies with, thereby digital copier 50 returns normal mode.For example, the generation of returning factor can comprise the open/close state of the pressure plare that is detected by pressure plare ON/OFF detecting sensor, by the setting of the document on the ADF of ADF document sensor, the pushing and the generation of the data that from first to the 3rd external interface 65-67 receives of the power switch of guidance panel 62.
Figure 10 shows the composition of another correlated digital duplicating machine.In the digital copier of Figure 10, realize that the guidance panel 101 of user interface is connected to system control unit 102.
The input block of system control unit 102 control operation panels 101 and display (both does not show) receive the video data that shows at the display of guidance panel 101 from the input data of the input block input of guidance panel 101 and output.
First to the 3rd external interface 105-107 is connected to system control unit 102 respectively, so that connect digital copier 50 to external device (ED), and PC for example, thus can between digital copier and external device (ED), carry out data communication by network.
Under the control of system's control power supply 102, can realize certain operations, comprise that the data that make engine 103 receive from external device (ED) are printed on the printing function on the recording chart, by communication line for example public telephone network send the facsimile transmission function of facsimile data to external device (ED), by communication line from external device (ED) the receive faxes fax receiving function and the image read functions of data.
First to return factor sensor 108 for example be ADF document sensor, detects the setting of the document on the ADF.Second to return factor sensor 109 for example be pressure plare ON/OFF detecting sensor, detects the open/close state that is used for document is pressed in contact pressure plare on glass.These sensors are the sensors that detect during battery saving mode to the generation of the factor of returning of normal mode.
System control unit 102 comprises CPU 120, and ROM 121, RAM 122 and ASIC 123.CPU120 is stored in the program among the ROM 121 and uses RAM 122 as the perform region by execution, the transfer of executable operations panel, first to the 3rd external interface 105-107 and the control of engine 103.
Transmission to the steering order of engine 103 is carried out by command link 110 and via ASIC123.
Engine 103 comprises control unit of engine 130, image input block 131 and image output unit 132.Image input block 131 is the control modules that read that the view data of will read from document by scanister inputs to control unit of engine.Write control module and in output unit 132 output electrofaxs are handled, write view data after the image by the control unit of engine processing, the surface of photoconductor is recharged, the surface of the charging of this photoconductor is exposed in the laser beam, and forms the electrostatic latent image image on this photoconductor.The electrostatic latent image image of this formation is by toner development, and the formation toner image.The toner image of this formation generates copy by fixation unit (figure does not show) photographic fixing of fixing heater heating on the record sheet (copy paper) that transmits from form feeder.These operations are to handle 61 by electrofax to carry out.
Control unit of engine 130 comprises CPU 133, ROM 134, RAM 135 and ASIC 136.CPU 133 is stored in the program among the ROM 134 by execution and uses RAM 135 as the imaging processing in the perform region control engine 103.
Carry out for the transmission of the steering order of engine 103 from system control unit 102 by command link 110 and via ASIC 136.
The digital copier of Figure 10 stops to supply with for the electric energy of each unit that comprises photographic fixing control module (not shown), fixing heater (not shown) and guidance panel 101 from power supply 104 under battery saving mode.
In order to switch to battery saving mode from normal mode, system control unit 102 cancellations (or invalid) export the power control signal sig1 of power supply 104 to by power control signal line 111.
When power supply 104 continuation provided electric energy P1 to system control unit 102 by power lead 112, the power control signal of power supply 104 these cancellations of response stopped to provide electric energy to guidance panel 101.
Because power supply 104 stops to provide electric energy P2 to engine 103 by power lead 113 equally, supply with to the electric energy of image input block 131, image output unit 132, photographic fixing control module, fixing heater and engine 103 and to be stopped.
In the digital copier of Figure 10, under battery saving mode, stop the supply of electric energy P2, and the CPU 133 of control unit of engine 130 does not work.Yet the supply of the power supply P1 by power lead 112 is kept, and CPU 120 work of system control unit 102.
Keeping the reason of supplying with to the electric energy of system control unit 102 during the battery saving mode be: when starting the operating system (OS) of UNIX (registered trademark) system, will spend the regular hour, because system control unit 102 is suitable for allowing network service.
Although the OS that stops to begin to such from power supply needs the time, the processing of data is handled, received to the Data Receiving that requirement from first to the 3rd external interface 105-107 comes, because need CPU 120, the electric energy of CPU120 is supplied with and can not be stopped, and this is because comprise the composition of first to the 3rd external interface 105-107.
The same digital copier (being called ultimate system) that has the composition of above-mentioned digital copier but do not comprise external interface that exists.
The digital copier that does not comprise external interface has illustrated with reference to Figure 10, but first to the 3rd external interface 105-107 can omit from the structure of this example.
In the example of this ultimate system, supply with and during battery saving mode, to stop to the electric energy of CPU 120.
In this ultimate system, be back to normal mode according to returning carrying out of factor, for example first and second the pushing of power switch (figure shows) of returning the state of keeping of output signal of factor sensor 108-109 and guidance panel 101 from battery saving mode.It is to carry out when above-mentioned any that return in the factor takes place.
System control unit 102 is kept the power control signal sig1 that exports power supply 104 by power control signal line 111 to, and power supply 104 restarts to provide the CPU120 of electric energy P1 to system control unit 102, and correspondingly provides electric energy P2 to engine 103.
The operation of the engine the digital copier of correlation technique when battery saving mode is back to normal mode will be described below.
1. in ultimate system, suppose under battery saving mode, to stop to supply with to the electric energy of the CPU 120 of system control unit 102.When comprising first when returning one of factor of returning of pushing that factor sensor 108 or second returns the power switch of the state of keeping of output signal of factor sensor 109 and guidance panel 101 and taking place, carry out being back to normal mode.
Because can consider this operation is to want to use the operation of this imaging device as the user of duplicating machine, system control unit 102 is maintained until the power control signal sig1 of power supply 104, and restarts to supply with for the electric energy of each unit that comprises CPU 120 and engine 103 from power supply 104.The supply of engine 103 these electric energy of response starts by the initialization process of carrying out the required electrofax processing of imaging.
2. in digital copier, suppose during battery saving mode, not stop to supply with to the electric energy of the CPU 120 of system control unit 102 with first to the 3rd external interface 105-107.In this case, return the state of keeping that factor sensor 108 or second returns the output signal of factor sensor 109 when first, from first to the 3rd external interface 105-107 receives data, when taking place, carry out and be back to normal mode from battery saving mode with any situation of pushing of the power switch of guidance panel 101.
System control unit 102 is kept power control signal sig1, and restarts to supply with for the electric energy of each unit that comprises engine 103 from power supply 104.
As in the situation of above-mentioned ultimate system, the initialization process that engine 103 these electric energy of response are supplied with by carrying out the required electrofax processing of imaging starts.
But,, handle along with the kind of the data that receive from external interface to change when from first to the 3rd external interface 105-107 receives data and takes place when battery saving mode is back to normal mode.
For example, owing to outside receive 105 and carry out the processing of printing when receiving the print data of printers at recording chart from first, system control unit 102 is kept power control signal sig1, and restart to supply with for the electric energy of each unit that comprises engine 103 from power supply 104, and be similar to ultimate system, respond this electric energy and supply with, engine 103 is carried out the initialization process that the required electrofax of imaging is handled, and starts it.
But, when the device management that receives for example " inquiry of antiquarian the main portion carton " from first external interface 105 instructs, the initialization process that does not need electrofax to handle, and also system control unit 102 is kept power control signal sig1.
Control unit of engine 130 receives to engine 103 and by it and restarts to supply with from the electric energy of power supply 104, and control unit of engine 130 starts, and control unit of engine 130 is with antiquarian reporting system control module 102.
Because the initialization process that above-mentioned electrofax is handled is also followed the generation of noise, according to the kind of the factor of returning from battery saving mode to normal mode, consumed power not only, and need to change whether carry out the initialized control that electrofax is handled.
Determine whether to carry out the selection of the initialization process that electrofax handles and start above-mentioned engine 103 from the steering order of system control unit 102, and its is started and do not carry out.
That is, in ultimate system, when stopping during the battery saving mode when power supply 104 supplies with for the electric energy of the CPU 120 of system control unit 102, control unit of engine 130 starts by the initialization process of carrying out electrofax and handling.
But because the startup of the OS of system control unit 102, system control unit 102 must spend the regular hour, and control unit of engine 130 can not send steering order in the set time.
In the digital copier with first to the 3rd external interface 105-107, when the electric energy supply of the CPU 102 that gives system control unit 102 from power supply did not stop, control unit of engine 130 started by the initialization process of carrying out the electrofax processing.
In this case, because the OS of system control unit 102 starts, control unit of engine 130 can be issued steering order in the set time.
The factor of returning from battery saving mode to normal mode, first is returned the state of keeping that factor sensor 108 or second returns the output signal of factor sensor 109, when it was any of steering order of the pushing of power switch, " handling initialization with electrofax starts " of guidance panel 101, control unit of engine 130 sent in the set time.
The factor of returning from battery saving mode to normal mode is the data that from first to the 3rd external interface 105-107 receives, and under the situation that does not need to print, control unit of engine 130 sends the steering order of " no electrofax is handled initialization and begun " in the set time.
Comprise at imaging device under the situation of external interface, because supply with and to stop, the problem that energy consumption enlarged markedly when existence was compared with ultimate system for the electric energy of CPU.
Selecting load factor when printer is when increasing along with the expansion of network equipment and color image forming apparatus, even be example with the environmental problem, it has become problem.
Thereby, comprise in the example of external interface at imaging device that equally the assembly of carrying out the function when CPU starts can be in the processing of execution external interface among the ASIC etc., thereby the power supply of CPU can stop.
Because under battery saving mode, can stop to supply with, there has not been ultimate system energy consumption variation problem greatly to the electric energy of CPU.
Figure 11 be explanation when first state of keeping that returns the output signal of factor sensor 108 take place conduct from battery saving mode to normal mode return factor the time, the sequential chart of the operation of the imaging device of this correlation technique.
For convenience, the imaging device of supposing this example is this ultimate system, and stops the electric energy supply to the CPU 120 of system control unit 102 during battery saving mode.
Shown in Figure 11 (a), when first Returning sensor 108 detected user's the document setup of ADF, system control unit 102 was kept the power control signal sig1 (Figure 11 (b)) to power supply 104.
Respond the state of keeping of this power control signal sig1, power supply 104 restarts to provide electric energy (Figure 11 (c), (d)) to each unit that comprises CPU 120 and engine 103.
At this moment, when the CPU 133 of engine 103 received power supply, CPU 133 started (Figure 11 (e)) at once.Yet before finishing CPU 120 startups, the CPU 120 of system control unit 102 needs certain hour (Figure 11 (f)).
Even CPU 120 is still starting, CPU 133 has started and has received instruction from command link 110.Then, control unit of engine 130 is carried out the initialization process of the required electrofax of imaging, thus starting engine (Figure 11 (g)).
Yet, return the initialization process that factor does not need electrofax to handle even system control unit is detected during battery saving mode, control unit of engine also begins to carry out the initialization that electrofax is handled when starting at it, and the startup of waiting system control module is not finished.For this reason, under the situation of above-mentioned imaging device, existence is accompanied by this initialization process may increase unnecessary energy consumption and the such problem of noise generation.
Embodiments of the invention are described with reference to the accompanying drawings.
As described below, imaging device in one embodiment of the invention be suitable for take place during the battery saving mode to normal mode return factor the time suppress the unnecessary initialization that electrofax is handled effectively, thereby can reduce energy consumption and can suppress generating noise.
Fig. 1 shows the composition of the digital copier in the embodiments of the invention.
In the digital copier of Fig. 1, realize that the guidance panel 1 of user interface is connected to the ASIC 23 of system control unit 2.The input block of system control unit 2 control operation panels 1 and display (both does not show).
Under the control of system control unit 2, the data of importing from the input block of guidance panel 1 receive at ASIC 23, and data presented exports the display of guidance panel 1 to by ASIC 23.
First to the 3rd external interface 5-7 is the ASIC 23 of connected system control module 2 respectively, and this digital copier can connect for example external device (ED) of PC by network, thereby realizes data communication by network.
First to the 3rd external interface 5-7 connects imaging device and external device (ED), thereby can carry out data communication between imaging device and external device (ED) as the function of external interface unit.
First returns factor sensor 8 and first returns factor sensor 9 and is connected ASIC 23 respectively.First to return factor sensor 8 for example be the document detection sensor, detects the document setup on the ADF (automatic document feeder).Second to return factor sensor 9 for example be pressure plare open/close state detecting sensor, detects the open/close state that is used for document is pressed in contact pressure plare on glass.These sensors detect during battery saving mode to the generation of the factor of returning of normal mode, and testing result is sent to ASIC 23.
The steering order that is sent to engine 3 by CPU is sent to the control unit of engine 30 of engine 3 from ASIC 23 by command link 40.
Even ASIC 23 also receives electric energy from power supply 4 at battery saving mode and supplies with, and ASIC 23 is operated in battery saving mode.
When detecting the generation of one of the factor of returning, ASIC 23 keeps power control signal sig1, and exports power supply 4 to by power control signal line 41.
Respond the power control signal sig1 that this is kept, restart by power lead 42 from power supply 4 to system control unit 2, the supply of the electric energy P1 of ROM 21 and RAM 23, and restart by power lead 43 from power supply 4 to engine 3 and the supply of the electric energy P2 of control unit of engine 30.
One of return in the factor when taking place in case detect, just before the CPU20 of system control unit 2 startup was finished, the notification signal sig2 that return factor information relevant with the factor of returning that detects gave control unit of engine 30 to ASIC 23 by the 44 output indications of notification signal line.
During battery saving mode in case detect the generation of the factor of returning, the above-mentioned functions of ASIC 23 with regard to output communication signal sig2 to control unit of engine 30.
Fig. 7 be explanation first external interface 5 during the battery saving mode by network receive from the data of external device (ED) as to normal mode return factor the time imaging device of the present invention the sequential chart of operation.
As mentioned above, in the imaging device of Fig. 1, in battery saving mode, stop electric energy supply to the CPU 20 of system control unit 2.In this example, the data that receive from first external interface 5 are print datas, and must carry out data are printed on print processing on the recording chart.
Shown in Fig. 7 (a), when ASIC 23 detects when receiving data from external device (ED) by network first external interface, ASIC 23 keeps the power control signal sig1 (Fig. 7 (b)) to power supply 4.
Respond the power control signal sig1 that this is kept, power supply 4 restarts electric energy is offered each unit (Fig. 7 (c), (d)) of the CPU 33 of the CPU 20 that comprises system control unit 2 and engine 3.
At this moment, when receiving electric energy when providing, the CPU 33 of engine 3 starts (Fig. 7 (e)) immediately.Yet, when the startup of the CPU 20 of system control unit 2 is finished, need spend the regular hour (Fig. 7 (f)).
Even CPU 20 is still starting, because CPU 33 receives the instruction that sends from command link 40, control unit of engine 30 is carried out the initialization process that the desired electrofax of imaging processing is handled, and starting engine (Fig. 7 (g)).
On the other hand, in case detect the generation of the factor of returning, ASIC 23 just before the startup of the CPU 20 of system control unit 2 is finished, will indicate the notification signal sig2 of the information (return factor information) relevant with the factor of returning that detects to export control unit of engine 30 (Fig. 7 (h)) to by notification signal line 44.
Start when finishing when CPU 20 and CPU 33 carry out respectively, the notification signal sig2 that side by side carries out by ASIC 23 outputs will return factor information notice control unit of engine 30, detect the generation of the factor of returning independently.
In the digital copier of Fig. 1, notification signal line 44 comprises one or more signal wire (being also referred to as rigid line).
When only using a signal line, the content changing of notification signal, and notice indicates two or more to return the information of the content of factor.
When using two or many signal line, by corresponding to two or more the factor of returning and two of combination or many signal line send notification signal and notify the various factors of returning.
Under normal mode, ASIC 23 control power supplys 4 (power supply unit), thereby the electric energy from power supply 4 offers engine 3 (image-generating unit) at least, control unit of engine 30 (imaging control module), system control unit 2 (system control unit), guidance panel 1 (input block) and external interface unit.And under battery saving mode, ASIC 23 carries out and stops the electric energy from power supply 4 is offered engine 3 (image-generating unit) at least the function of control unit of engine 30 (imaging control module) and system control unit 2 (system control unit).
For the imaging device of present embodiment, when when battery saving mode returns normal mode, can CPU20 start finish before the reception data of control from first to the 3rd external interface 5-7 input.
Image output control unit 32 comprises the optics r/w cell, comes the laser beam of modulate emission according to the view data of being carried out Flame Image Process by control unit of engine, and optically image is write on the surface of photoconductor (not shown) by laser beam.This image output unit 32 comprises image-generating unit, handles that by electrofax image is formed on the recording chart.In image-generating unit, the surface of photoconductor is recharged, and the charging surface of this photoconductor is exposed in the laser beam, thereby the electrostatic latent image image is formed on this photoconductor surface.In addition, in image-generating unit, the electrostatic latent image image of this formation is by toner development, to form toner image on photoconductor.The toner image that the fixation unit that use is heated by fixing heater should form copies thereby generate on record sheet (copy paper).
In the initialization process that electrofax is handled, the main initialization of carrying out the photoconductor that is included in the image-generating unit, charhing unit, delivery unit, fixation unit etc.
Control unit of engine 30 comprises CPU 33, ROM 34, RAM 35 and ASIC 36.CPU 33 is stored in the program among the ROM 34 by execution and uses RAM 35 as the above-mentioned processing in the perform region control engine 3.
By command link 40 and via the transmission of the steering order of the engine 3 of the ASIC 23 of ASIC 36 executive system control modules 2.
Control unit of engine 30 is embodied as the function of picture control module, the imaging of control image-generating unit.
Power supply 4 is realized the function of power supply unit, comprising by the power lead (not shown) returns factor sensor 8 and second and returns factor sensor 9 supply of electrical energy for guidance panel 1, first to the 3rd external interface 5-7, first, give system control unit 2 supply of electrical energy P1 and electric energy P2 is provided for engine 3 and control unit of engine 30 by power lead 42 by power lead 43.
In the digital copier of Fig. 1, in order to switch to battery saving mode from normal mode, ASIC 23 cancellation power control signal sig1.
Respond the power control signal sig1 of this cancellation, power supply 4 stops to engine 3 and control unit of engine 43 supply of electrical energy P2, and stops to system control unit 2 supply of electrical energy P1.In this case, keep to guidance panel 1, first to the 3rd external interface 5-7, first and return ASIC 23 supply of electrical energy that factor sensor 8, second returns factor sensor 9 and system control unit 2.
Therefore, image output unit 32, photographic fixing control module, fixing heater and engine 3 un-activations, and do not allow image input block 31 to receive view data.
The operation of digital copier when battery saving mode returns normal mode is described below.
As during battery saving mode to the factor of returning of normal mode, can take place first and return the state of keeping that factor sensor 8 or second returns the output signal of factor sensor 9, the power switch of guidance panel 1 push and data that from first to the 3rd external interface 5-7 receives any situation.When keeping power control signal sig1 and notification signal line 44 and be made of a signal line, ASIC 23 returns indication shown in Figure 2 by notification signal line 44 the notification signal sig2 notice control unit of engine 30 of factor information.
Fig. 2 is that the synoptic diagram of digital signal as the Notification Method of notification signal used in explanation, and this digital signal is carried discrete separately one of sign indicating number that the difference that is assigned to normal mode is respectively returned factor, and this returns factor and may occur in during the battery saving mode.
As shown in Figure 2, suppose that notification signal sig2 is three bit digital signal.When the main power switch that detects digital copier was connected, the notification signal sig2 that ASIC 23 outputs have bit 2-0 " 000 " gave control unit of engine 30.
When keeping first when returning the output signal of factor sensor 8, the notification signal sig2 that ASIC 23 outputs have bit 2-0 " 001 " gives control unit of engine 30.
When keeping second when returning the output signal of factor sensor 9, the notification signal sig2 that ASIC 23 outputs have bit 2-0 " 011 " gives control unit of engine 30.
Though the abridged legend, when providing the 3rd to return the factor sensor and keep the 3rd when returning the factor signal of sensor, the notification signal sig2 that ASIC 23 outputs have bit 2-0 " 111 " gives control unit of engine 30.
When the power switch of the guidance panel 1 that detects digital copier was connected, the notification signal sig2 that ASIC 23 outputs have bit 2-0 " 100 " gave control unit of engine 30.
When occurring from data that first external interface 5 receives, the notification signal sig2 that ASIC 23 outputs have bit 2-0 " 101 " gives control unit of engine 30.
When occurring from data that second external interface 6 receives, the notification signal sig2 that ASIC 23 outputs have bit 2-0 " 110 " gives control unit of engine 30.
When occurring from data that the 3rd external interface 7 receives, the notification signal sig2 that ASIC 23 outputs have bit 2-0 " 111 " gives control unit of engine 30.
Response is from the power control signal sig1 of ASIC 23 receptions of system control unit 2, and power supply 4 restarts the supply of electric energy P1 and P2.Respond this electric energy and supply with start-up system control module 2 and control unit of engine 30.When the bit of notification signal sig2 is set to " 000 ", " 001 ", " 010 " when " 011 " or " 100 ", considers that the user wants to use this digital copier as the copy machine.In these cases, control unit of engine 30 control engines 3, thus start it by the initialization process of carrying out the required electrofax processing of imaging.
When the bit of notification signal sig2 is set to " 110 ", when " 101 " or " 111 ", the factor of returning from battery saving mode to normal mode of control unit of engine 30 is the data conditions that from first to the 3rd external interface 5-7 receives to occur.
Since receive via ASIC 23, on recording chart, carry out print processing when being the printer prints data, so carry out the initialization process that the required electrofax of imaging is handled, and starting engine 3 from the data of external device (ED).
Yet, be when external device (ED) receives owing to be included in the device management instruction of the antiquarian inquiry in the formant carton, the initialization process that electrofax is handled is dispensable, does not therefore carry out the initialization process of the electrofax processing of engine 3.
Under this situation, only control unit of engine 30 starts, and control unit of engine 30 is with the antiquarian reporting system control module 2 in the formant carton.
The content of the instruction that the ASIC 36 of control unit of engine 30 receives from the ASIC 23 of system control unit 2 based on the content of the notification signal sig2 that receives from the ASIC 23 of system control unit 2 by notification signal line 44 with by command link 43 is carried out and whether is carried out initialization process and the starting engine 3 that electrofax handles and whether make its startup and do not carry out the judgement of initialization process.
Therefore, can not judge the details that return factor information by control unit of engine 30, the initialization that the beginning Motronic control maps is taken a picture and handled, and beginning or carry out suitably carrying out this selection, and also it may control the unnecessary energy consumption or the generation of noise.
Fig. 8 is the process flow diagram of the processing carried out of the control unit of engine of explanation imaging device of the present invention.
As mentioned above, the ASIC 23 of system control unit 2 monitors during battery saving mode to the generation of the factor of returning of normal mode.
Notification signal sig2 is sent to control unit of engine 30 by notification signal line 44, and this notification signal sig2 indicates the return factor information relevant with the factor of returning that detects, and it detects the generation of one of the factor of returning simultaneously.
Control unit of engine 30 detects the input that whether has from the notification signal sig2 of notification signal line 44 in step S21.
When in step S21 the input of notification signal line 44 being arranged, control unit of engine 30 obtains the factor information of returning by the notification signal sig2 indication that receives by notification signal line 44 in step S22.
Control unit of engine 30 is based on factor information whether need to determine the electrofax processing when returning normal mode the initialization of returning that obtains at step S22 in step S23.
In this case, control unit of engine 30 is as initialization necessity judging unit.
When using the Notification Method of Fig. 2, be assigned to two or more sign indicating numbers that return factor, store a table in advance, the information of its definition and the necessity of the initialization process of the electrofax processing of corresponding each ROM 134 of indication relevant, and CPU 133 consults this table.
Based on the factor information of returning, can determine the necessity of the initialization process that electrofax is handled by notification signal sig2 indication.
Selectable, realize that above-mentioned functions can form as the circuit component among the ASIC 36 with the initialization necessity judging unit of the necessity of the initialization process of definite electrofax processing.
When determining that in step S23 the factor of returning does not need the initialization process of electrofax processing, control unit of engine 30 returns normal mode in step S24, does not carry out the initialization process that electrofax is handled.
In step S25, control unit of engine 30 is beamed back response message by command link 40 and is given system control unit 2.And stop the processing of Fig. 8.
When determining that at step S23 the factor of returning needs the initialization process of electrofax processing, the initialization process that control unit of engine 30 beginning electrofaxs are handled in step S26.
In step S27, control unit of engine 30 returns normal mode, and finishes this processing.
Then, can utilize width modulation (PWM) driving pulse to notify above-mentioned notification signal.
Fig. 3 A, Fig. 3 B and Fig. 3 C are that the synoptic diagram of notification signal as the Notification Method of width-modulation pulse used in explanation, and two or more the return factors of this width-modulation pulse distribution from battery saving mode to normal mode are respectively as difference in pulse width.
Fig. 3 A shows the waveform of the notification signal sig2 export when keeping the signal of first Returning sensor 8, it is that to make the predetermined pulse width twa in period T be the signal of high level.
Fig. 3 B shows the waveform of the notification signal sig2 that exports when the power switch of guidance panel 1 is set to connect, it is to make that predetermined pulse width twb is the signal of high level in period T.
Fig. 3 C shows the waveform of the notification signal sig2 that exports when taking place from first external interface, 5 reception data, it is to make that predetermined pulse width twc is the signal of high level in period T.
Therefore, by changing pulse width or duty cycle (duty), the twa＜twb that satisfies condition＜twc indicates different types of factor of returning respectively.In this example, suppose that the rigid line road the is arranged situation of (hard line).
Certainty is real, and the combination on two or many rigid line roads is enough, and should not only limit to this example.Therefore, number can be reduced, and the cost of digital copier can be reduced as the rigid line road of notifying device.
When using the Notification Method of Fig. 3, the error-detecting unit preferably is provided, judge that the width-modulation pulse of notice is high level or low level time to exceed the set time, this is abnormal for control unit of engine 30.
Fig. 4 shows the function composition that is arranged on error-detecting unit 37 in the control unit of engine 30.
Error-detecting unit 37 comprises watchdog timer.Whether the edge input that this error-detecting unit 37 monitors the ASIC 23 that gives notification signal sig2 is being set in the cycle of stored reference value " a " in advance.
When the input of the edge of the ASIC 23 that does not give notification signal sig2 entered in the cycle that is set to reference value " a ", error-detecting unit 37 was kept error flag F.
Fig. 5 A is presented at the waveform of the notification signal sig2 of notice normal time, and error-detecting unit 37 determines it is normal by the edge input that detects pulse width twb in the period T that is set to reference value a.
Fig. 5 B is presented at the waveform of the notification signal sig2 of abnormal time notice, and error-detecting unit 37 only detects the high level signal in the period T that is set to reference value a and the edge that do not detect pulse width twb imports to determine it is unusual.
The value that surpasses period T is set to the reference value a of Fig. 4.Being used to detect the pulse width twb that imports at above-mentioned edge can arbitrarily be provided with.
Though the high level pulse width is used for edge input in this example, also can make this waveform in high level signal, form low level pulse width twb in the period T.
Fig. 6 be explanation when occur during the battery saving mode to the norm formula return factor the time by the process flow diagram of the processing of the control unit of engine of imaging device of the present invention execution.
In this example, when the power switch of the digital copier of Fig. 1 is connected, the processing of engine control system 30 execution graphs 6.
At step S1, control unit of engine 30 is carried out by power connection and is begun to handle, and judges in step S2 whether the error flag F of 37 outputs from the error-detecting unit is logical (keeping).
As error flag F during not at logical state, the judgement that control unit of engine 30 is carried out in the beginning patterns, and in step S3, carry out normal process, and finish this processing.If for logical, control unit of engine 30 will present error message to error flag F in step S4 in step S2.
When detect error flag F keep state the time, control unit of engine 30 shows error messages.
Shown in Fig. 5 B, as notification signal sig2 during above set time " high (H) level " or " low (L) level ", by judging that it is unusual, control unit of engine 30 can begin at the software of system control unit to judge before the abnormal operation of system control unit 2, and its can be when powering up the unusual situation of fast notification user.
As mentioned above, imaging device of the present invention also can be applicable to carry out the imaging device of imaging, comprises printing equipment and facsimile unit.
The present invention is not limited to the above embodiments, can make various changes and modification under not departing from the scope of the present invention.
In addition, to be based on and to require the Japanese patent application No. of on July 5th, 2005 application be that the Japanese patent application No. of 2005-196628 and application on June 2nd, 2006 is the right of priority of 2006-154978 to the application.Its whole contents is quoted at this as a reference.
Claims (8)
1. imaging device is characterized in that comprising:
System control unit;
Image-generating unit uses predetermined process that image is formed on the recording chart;
The imaging control module is used to control the imaging of this image-generating unit;
Power supply unit, response provides electric energy to this image-generating unit, this imaging control module and this system control unit from the control signal that this system control unit receives at least;
Return the factor monitor unit, be arranged in this system control unit, during battery saving mode, detect to the generation of the factor of returning of normal mode, wherein when in the generation that detects during the battery saving mode to the factor of returning of normal mode, this returns the factor monitor unit and exported the indication notification signal that return factor information relevant with the factor of returning of this detection to this imaging control module before this system control unit is finished startup; With
Initialization necessity judging unit, returning factor information and determine when turning back to this normal mode, whether to need this predetermined process of initialization based on the indication of this notification signal;
Wherein, even at battery saving mode, this power supply unit also provides electric energy to return the factor monitor unit to this, and monitor unit is operated in battery saving mode thereby this returns factor;
This return this power supply unit that the factor monitor unit is provided for being controlled at this normal mode at least supply of electrical energy give this image-generating unit, this imaging control module and this system control unit, and this power supply unit that is provided for being controlled at battery saving mode stops supply of electrical energy and gives this image-generating unit, this imaging control module and this system control unit.
2. imaging device according to claim 1 is characterized in that:
This returns the factor monitor unit and is provided and is used for transmitting the width-modulation pulse that return factor information relevant with the factor of returning of this detection to this imaging control module by one or more communication line output.
3. imaging device according to claim 2, it is characterized in that further comprising: the error-detecting unit, when being continuously high level or low level on cycle at a fixed time, the width-modulation pulse that is returned factor monitor unit output by this determines to have occurred mistake.
4. imaging device according to claim 1 is characterized in that:
When this returned the factor monitor unit in the generation that detects during the battery saving mode to the factor of returning of normal mode, this system control unit was controlled this power supply unit and is restarted electric energy to be provided at least this image-generating unit, this imaging control module and this system control unit.
5. imaging device according to claim 1 is characterized in that:
This initialization necessity judging unit is provided for: that factor monitor unit receives based on returning from this, as the indicated sign indicating number of the digital signal of this notification signal, the electrofax that whether needs this image-generating unit of initialization to use when determining to turn back to this normal mode is handled.
6. imaging device according to claim 1 is characterized in that:
This initialization necessity judging unit is provided for: that the factor monitor unit receives based on returning, as the pulse width of the width-modulation pulse of this notification signal from this, determine that the electrofax that whether needs this image-generating unit of initialization to use handles when turning back to this normal mode.
7. imaging device according to claim 1 is characterized in that:
This imaging control module is connected to this system control unit by command link.
8. method of controlling imaging device, this imaging device comprises: system control unit; Image-generating unit uses predetermined process that image is formed on the recording chart; The imaging control module, the imaging of control image-generating unit; Power supply unit, response provides electric energy to this image-generating unit, this imaging control module and this system control unit from the control signal that system control unit receives at least; Return the factor monitoring unit, be arranged in the system control unit, detect during battery saving mode to the generation of the factor of returning of normal mode, this method comprises:
When the generation of the factor of returning that detects normal mode during battery saving mode, before this system control unit was finished startup, the output indication notification signal that return factor information relevant with the factor of returning of this detection given into this as control module;
At battery saving mode, this power supply unit provides electric energy to return the factor monitor unit to this, and monitor unit is operated in battery saving mode thereby this returns factor;
This return this power supply unit that the factor monitor unit is provided for being controlled at this normal mode at least supply of electrical energy give this image-generating unit, this imaging control module and this system control unit, and this power supply unit that is provided for being controlled at battery saving mode stops supply of electrical energy and gives this image-generating unit, this imaging control module and this system control unit; With
Based on the factor information of returning of this notification signal indication, determine when turning back to normal mode, whether to need this predetermined process of initialization.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005196628 | 2005-07-05 | ||
| JP2005196628 | 2005-07-05 | ||
| JP2006154978 | 2006-06-02 |
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| Publication Number | Publication Date |
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| CN1892470A CN1892470A (en) | 2007-01-10 |
| CN100517095C true CN100517095C (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101002669A Expired - Fee Related CN100517095C (en) | 2005-07-05 | 2006-07-05 | Image forming device and method for controlling the image forming device |
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| CN (1) | CN100517095C (en) |
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| CN102647079A (en) * | 2011-02-16 | 2012-08-22 | 佳能株式会社 | Discharging circuit and power supply |
| CN102739902A (en) * | 2011-04-13 | 2012-10-17 | 佳能株式会社 | Image forming apparatus and control method thereof |
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| JP5262498B2 (en) * | 2008-09-17 | 2013-08-14 | 株式会社リコー | Image forming apparatus |
| JP5736120B2 (en) | 2009-07-03 | 2015-06-17 | 株式会社リコー | ELECTRIC DEVICE, IMAGE FORMING APPARATUS, ELECTRIC DEVICE CONTROL METHOD, AND PROGRAM |
| JP5477049B2 (en) * | 2010-02-26 | 2014-04-23 | セイコーエプソン株式会社 | Printing system and control method thereof |
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| JP2013208811A (en) * | 2012-03-30 | 2013-10-10 | Canon Inc | Image forming apparatus and control method of the same, and program |
| JP6131536B2 (en) * | 2012-07-03 | 2017-05-24 | 株式会社リコー | Image processing apparatus, power saving control method, and power saving control program |
| JP2014075786A (en) * | 2012-09-11 | 2014-04-24 | Canon Inc | Image forming apparatus, control method of image forming apparatus, and program |
| JP6080539B2 (en) * | 2012-12-25 | 2017-02-15 | キヤノン株式会社 | Image forming apparatus, control method thereof, and program |
| JP2015089673A (en) * | 2013-11-07 | 2015-05-11 | キヤノン株式会社 | Image formation apparatus |
| JP6530658B2 (en) | 2014-08-11 | 2019-06-12 | キヤノン株式会社 | Imaging device, control method therefor, program, and recording medium |
| CN107426460A (en) * | 2017-08-03 | 2017-12-01 | 合肥祥国电子商务有限公司 | A kind of computer based facsimile machine display control program |
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- 2006-07-05 CN CNB2006101002669A patent/CN100517095C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647079A (en) * | 2011-02-16 | 2012-08-22 | 佳能株式会社 | Discharging circuit and power supply |
| US8937471B2 (en) | 2011-02-16 | 2015-01-20 | Canon Kabushiki Kaisha | Discharging circuit and power supply |
| CN102647079B (en) * | 2011-02-16 | 2016-01-20 | 佳能株式会社 | Discharge circuit and power supply |
| CN102739902A (en) * | 2011-04-13 | 2012-10-17 | 佳能株式会社 | Image forming apparatus and control method thereof |
| CN102739902B (en) * | 2011-04-13 | 2016-03-02 | 佳能株式会社 | Image forming apparatus and the control method for image forming apparatus |
| US9571673B2 (en) | 2011-04-13 | 2017-02-14 | Canon Kabushiki Kaisha | Image forming apparatus with controlled activation based on port number and control method thereof |
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| CN1892470A (en) | 2007-01-10 |
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