CN105045075A - Image forming apparatus and controlling method for the image forming apparatus - Google Patents
Image forming apparatus and controlling method for the image forming apparatus Download PDFInfo
- Publication number
- CN105045075A CN105045075A CN201510180829.9A CN201510180829A CN105045075A CN 105045075 A CN105045075 A CN 105045075A CN 201510180829 A CN201510180829 A CN 201510180829A CN 105045075 A CN105045075 A CN 105045075A
- Authority
- CN
- China
- Prior art keywords
- fixing roller
- image
- developer
- movement
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention provides an image forming apparatus and a controlling method for the image forming apparatus which effectively utilizes a cleaning net. In the image forming apparatus, when an image fixing rod rotates, heat the developing agent of the developing image formed by an image part so that the image shadows are fixed onto a thin medium. The cleaning net is in contact with the surface of the image fixing rod and the developing agent image and the developing agent is removed from the image fixing rod. A moving part is capable of moving in the contact state of the cleaning net and the fixed image rod. When the developing agent image reaches a certain regulated amount, the controlling part controls the moving part to make the cleaning net move at a first moving amount; when the fixed image rod starts to rotate until the developing agent image is formed to meet pre-set conditions, the controlling part controls the moving part to make the cleaning net move at a second moving amount which is greater than the first moving amount.
Description
Technical field
The present invention relates to image processing system and control method thereof.
Background technology
Known a kind of image processing system, by the heating of fixing roller by fixing for the developer image melting formed on the sheet mediums such as recording chart.And, in this image processing system, there is the clean net for removing the developer be attached on fixing roller.
Usually, clean net thin and elongated net (cloth) is rolled into roll to use.And, from roller, extract a certain amount of net gradually out, make the new part of net contact with fixing roller simultaneously, thus, the cleaning capacity of clean net can be maintained for a long time.
Extract the frequency of net out if improved, and cleaning capacity can be improved relatively, the up time of a clean net will be shortened.
From this situation, it is desirable to the up time of cleaning capacity and clean net is balanced, can effectively use clean net.
Summary of the invention
The technical matters that invention will solve
The technical problem to be solved in the present invention is, provides a kind of image processing system and control method thereof, and it can make cleaning capacity net (ク リ ー ニ Application グ ウ ェ Block with clean) up time balance, can effectively use clean net.
For the scheme of technical solution problem
Image processing system according to an aspect of the present invention, is characterized in that, comprising: image forming part, and sheet medium forms developer image; Fixing roller, while rotation, heats the developer forming described developer image, makes described developer fixing in described sheet medium; Clean net, contacts with the region of the circumferencial direction of the described fixing roller in the face of the described developer image of the contact of described fixing roller, developer described in scraping from described fixing roller; Moving part, can make described clean net move under the state contacted with described fixing roller; And control part, when the formation volume of described developer image reaches the first ormal weight, described control part controls described moving part, described clean net is moved with the first amount of movement, when the formational situation of the described developer image during stopping to the rotation of described fixing roller when the rotation from described fixing roller meets predetermined condition, described control part controls described moving part, and described clean net is moved with the second amount of movement being greater than described first amount of movement.
The control method of image processing system according to a further aspect of the invention, described image processing system comprises: image forming part, and sheet medium forms developer image; Fixing roller, while rotation, heats the developer forming described developer image, makes described developer fixing in described sheet medium; Clean net, contacts with the region of the circumferencial direction of the described fixing roller in the face of the described developer image of the contact of described fixing roller, developer described in scraping from described fixing roller; And moving part, described clean net can be made to move under the state contacted with described fixing roller, the feature of described control method is, when the formation volume of described developer image reaches the first ormal weight, control described moving part, described clean net is moved with the first amount of movement, when the formational situation of the described developer image during stopping to the rotation of described fixing roller when the rotation from described fixing roller meets predetermined condition, control described moving part, described clean net is moved with the second amount of movement being greater than described first amount of movement.
Accompanying drawing explanation
Fig. 1 is the formation schematic diagram of the digit apparatus that an embodiment of the present invention relates to.
Fig. 2 is the process flow diagram of the control treatment of CPU in Fig. 1.
Fig. 3 amplifies the schematic diagram (the first state) around the clamping part that fixing roller and clean net in Fig. 1 are shown.
Fig. 4 amplifies the schematic diagram (the second state) around the clamping part that fixing roller and clean net in Fig. 1 are shown.
Fig. 5 amplifies the schematic diagram (third state) around the clamping part that fixing roller and clean net in Fig. 1 are shown.
Fig. 6 illustrates at the end of print job for making the schematic diagram of the winding performance of the clean net of mobile second amount of movement of clean net.
Embodiment
Below, utilize accompanying drawing that an example of embodiment is described.And, in the present embodiment, be described to have printer as the digit apparatus (MFP:multi-functionalperipheral: all-in-one multifunctional machine) of image processing system.
Fig. 1 is the formation schematic diagram of digit apparatus 100 of the present embodiment.
Digit apparatus 100 comprises scanner 1, sheet feed section 2, print engine 3, fixing section 4, ADU 5, group of motors 6, sensor group 7, systems control division 8, print control section 9 and discharge tray 10.
Scanner 1 reads the image of original copy, and generates the view data corresponding with it.Scanner 1 such as utilizes the imageing sensors such as ccd line sensor, generates the view data corresponding with the reflected light image from original copy reading face.Scanner 1 both can be the scanner of this original copy by being positioned over document board along the image sensor scan of original copy movement, also can be the scanner of the original copy that the image sensor scan by being fixed is carried by auto document feeder (ADF:autodocumentfeeder).Although eliminate diagram in FIG, scanner 1 is electrically connected with systems control division 8 and is controlled by systems control division 8, and, the view data generated is exported to systems control division 8.
Sheet feed section 2 comprises paper feeding cassette 20A, 20B, 20C, pick-up roller 21A, 21B, 21C, conveying roller 22A, 22B, 22C and contraposition roller 23.
Paper feeding cassette 20A, 20B, 20C are with the sheet medium of the corresponding kind (such as size, material) of setting separately of laminated arrangement storage.The sheet medium of paper feeding cassette 20A, 20B, 20C storage becomes the object of printed drawings picture.It should be noted that as sheet medium, the medium formed by the various material such as paper or resin can be utilized, but, be paper due to what in most cases utilize, therefore, be all called print paper below.Sheet feed section 2 also can comprise manual pallet in addition.
Pick-up roller 21A, 21B, 21C extracting sheets one by one from each paper feeding cassette 20A, 20B, 20C.The paper taken out is sent into conveying roller 22A, 22B, 22C by pick-up roller 21A, 21B, 21C.
The print paper sent into from pick-up roller 21A, 21B, 21C is sent into contraposition roller 23 via the transport path formed by not shown guide member etc. by conveying roller 22A, 22B, 22C.
Contraposition roller 23 corrects the inclination of print paper, and the time of print paper is sent in adjustment to print engine 3.
And paper feeding cassette, pick-up roller and conveying roller are not limited to 3 groups, can be set to organize number arbitrarily.And if arrange manual pallet, paper feeding cassette, the pick-up roller paired with paper feeding cassette and conveying roller one group do not arrange passable yet.
Print engine 3 comprises photosensitive drums 31, charger 32, laser scanner 33, developer 34, transfer roll 35 and clearer 36.
Photosensitive drums 31 is formed by forming conductive photoreceptor layer at the outer peripheral face of the base drum formed by electric conductor.In conductive photoreceptor layer, the conductance in the region be only exposed rises to electric charge is shifted to base drum degree by the surface of conductive photoreceptor layer.Photosensitive drums 31 is by belonging in the motor of group of motors 6 one and rotate along the counter clockwise direction in Fig. 1.
Charger 32 makes the outer peripheral face uniform charged of photosensitive drums 31.
The view data (print data) of the image that laser scanner 33 should print based on expression, to the area illumination laser that should adhere to developer in the outer peripheral face of photosensitive drums 31.Thus, the local of the outer peripheral face of photosensitive drums 31 except electricity, is formed the electrostatic latent image corresponding to the image that should print by laser scanner 33.
Developer 34 makes developer be attached to the charge removing area of photosensitive drums 31 outer peripheral face statically.Thus, developer 34 makes the latent electrostatic image developing that formed at the outer peripheral face of photosensitive drums 31 and forms developer image.
The print paper sent into by contraposition roller 23 is clipped between itself and the outer peripheral face of photosensitive drums 31 by transfer roll 35.The developer image being formed at photosensitive drums 31 outer peripheral face is transferred on print paper by transfer roll 35 for electrostatically.
Clearer 36 removes the developer not being transferred to and print paper remaining in photosensitive drums 31 outer peripheral face.
So, print engine 3 forms developer image by electrofax mode on the print paper sent into by contraposition roller 23.As print engine 3, can directly use known device.It should be noted that, as long as print engine 3 forms the device of developer image on print paper, it also can replace with the device of alternate manner.Print engine 3 is an example of image forming part.
Fixing section 4 comprises fixing roller 41, backer roll 42, clean net 43, core 44,45 and crimping roller 46.
Fixing roller 41 such as contains well heater 41a in the inside of the hollow roller formed by heat-resistant resin.Well heater 41a is IH (inductionheating: induction heating) well heater typically, but, suitably can use the well heater of other any type.Fixing roller 41 makes to be attached to the developer melting on the print paper sent by print engine 3, thus this developer is fixed on print paper.Fixing roller 41 is rotated along the counter clockwise direction in Fig. 1 by the motor be included in group of motors 6.
Backer roll 42 is arranged to parallel with fixing roller 41 and by the state be pressed on fixing roller 41.The print paper sent by print engine 3 is clipped between itself and fixing roller 41 by backer roll 42, and presses to fixing roller 41.
Clean net 43 is thin and elongated nets, and end side is wound into cylinder shape in core 44.The other end of clean net 43 is fixed in core 45.
Core 44 is supported for and can rotates freely under the state roughly walked abreast with fixing roller 41.
Core 45 configures with the state roughly walked abreast with fixing roller 41, is rotated along the clockwise direction in Fig. 1 by the motor be included in group of motors 6.So, core 45 is extracted out and the clean net 43 be entangled in core 44 that reels.By being contained in the function that the motor making core 45 rotate in the motor of group of motors 6 and core 45 realize as moving part.
Crimping roller 46 is arranged to walk abreast with fixing roller 41 and be pressed against the state of fixing roller 41.Clean net 43 is clipped between itself and fixing roller 41 by crimping roller 46, and presses to fixing roller 41.
ADU 5 comprises multiple roller, optionally carries out two actions below.First action is sent directly to discharge tray 10 by the print paper by fixing section 4.This first action is carried out when terminating one side printing or duplex printing.Second action is that the print paper by fixing section 4 is sent into print engine 3 temporarily to discharge tray 10 side conveying rear steering.This second action is terminating to carry out when the image in one side in duplex printing is formed.
Group of motors 6 comprises the multiple motors for making pick-up roller 21A, 21B, 21C, conveying roller 22A, 22B, 22C, contraposition roller 23, photosensitive drums 31, fixing roller 41, core 45, the roller be included in ADU 5 etc. rotate.The multiple motors be included in group of motors 6 are controlled its action respectively by print control section 9.
Sensor group 7 comprises the multiple sensors detecting print paper respectively on diverse location.The output being included in the multiple sensors in sensor group 7 inputs separately print control section 9.
Systems control division 8 is in order to realize the action of the expectation as digit apparatus 100, and Comprehensive Control forms each portion of digit apparatus 100.It should be noted that, as the action case of the expectation of digit apparatus 100 in this way for realizing the action of the various functions realized by existing digit apparatus.
Print control section 9 comprises CPU (centralprocessingunit, CPU (central processing unit)) 91, ROM (read-onlymemory, ROM (read-only memory)) 92, RAM (random-accessmemory, random access memory) 93, auxiliary storage portion 94, interface portion (IF portion) 95 and system bus 96.
CPU91, ROM92, RAM93 and auxiliary storage portion 94 are connected by system bus 96 and are formed computing machine.
CPU91 is the maincenter part of above computer.CPU91, based on the operating system be stored in ROM92, the application program be stored in ROM92 or auxiliary storage portion 94, controls print engine 3, fixing section 4 and group of motors 6, to realize the function for the expectation printed under the control of systems control division 8.
ROM92 is the main memory portion of above computer.ROM92 stores aforesaid operations system and application program.And, ROM92 sometimes also store CPU91 carry out various process time reference data.
RAM93 is the main memory portion of above computer.RAM93 store CPU91 carry out various process time reference data.And, RAM93 store CPU carry out various process time Interim use data, use as so-called workspace.
Auxiliary storage portion 94 is the second memory part of above computer.The data that auxiliary storage portion 94 preserves above-mentioned application program, CPU91 uses when carrying out various process or the data generated by the process in CPU91.As auxiliary storage portion 94, such as can apply HDD (Harddiskdrive: hard disk drive), SSD (solidstatedrive, solid-state drive) or EEPROM (electricerasableprogrammableread-onlymemory, EEPROM (Electrically Erasable Programmable Read Only Memo)) etc.
System bus 96, print engine 3, fixing section 4, group of motors 6, sensor group 7 and systems control division 8 are connected with interface portion 95 respectively.The intermediary that interface portion 95 joins as CPU91 and the information between print engine 3, fixing section 4, group of motors 6, sensor group 7 and systems control division 8, signal.
As the hardware of print control section 9, such as, can use the existing devices such as general single-chip microcomputer.And, by the sellers of digit apparatus 100 or user, the application program, the i.e. control program that are described control treatment described later be installed in the auxiliary storage portion 94 that this device has and realize print control section 9.Now, control program is recorded in the removable recording mediums such as disk, magneto-optic disk, CD, semiconductor memory or by Web Publishing to sellers or user.It should be noted that control program also can be pre-stored within ROM92.
Below, the action of the digit apparatus 100 formed as mentioned above is described.And, in the action of digit apparatus 100, with the action of the existing digit apparatus action unlike printing action, especially fixing section 4, so, be described centered by this point below.
Under the state not generating print job, CPU91 makes fixing roller 41 and core 45 stop.It should be noted that, so-called print job refers to that such as response starts the request of duplicating, starts the print request relevant to file etc. and a series of printing actions of starting.Therefore, the number of prints in a print job according to as duplicate object original copy number or duplicate number, a file number of pages or print the various condition such as number and various change occur.
CPU91 produces print job, and response starts the control treatment shown in Fig. 2 according to the control program be stored in ROM92 or auxiliary storage portion 94 by systems control division 8 indicates printing action.And the content of the process below illustrated is an example, suitably can apply the various process that can obtain equifinality.
In Act1, the second count value in first and second count value being used for counting number of prints resets by CPU91.Like this, the second count value is the count value relevant to number of prints from the sart point in time of print job.
In Act2, CPU91 starts printing action.Specifically, CPU91 starts and is contained in for the motor that makes photosensitive drums 31 rotate and the motor for making fixing roller 41 rotate in the motor of group of motors 6, and the heating action of the startup charging action of charger 32 respectively, the transfer printing action of transfer roll 35 and well heater 41a.And, can print state if become, CPU91 then enters Act3.
In Act3, CPU91 prints on a print paper.Action for this printing can be identical with the known image processing system of electrofax mode, and therefore, description is omitted.
In Act4, CPU91 all carries out addition counting (カ ウ Application ト ア ッ プ) to the first and second count value.Here addition count value (カ ウ Application ト ア ッ プ value) is for presetting in Act3 for larger then its larger value of the size of the print paper printed.Specifically, the addition count value being defined as the size of reference dimension is set to " 1 ", the addition count value of other size is set to the value corresponding to the ratio of this size and reference dimension.As an example, to suppose A4 size, as reference dimension, to be added count value and to be set to " 1 ", addition count value during A3 size is set to " 2 ".
In Act5, CPU91 calculates in the print job implemented as mean pixel number the quantity of the print paper of each reference dimension average of the colored pixels that print paper is formed.Reference dimension can be set arbitrarily in advance, such as, may be thought of as A4 size.The quantity of colored pixels also can count as the pixel count for the object of Laser output exposed become in laser scanner 33.Count value in printing counter that the existing apparatus that can be used as print engine 3 carries, that count the Laser output for exposing can be used as colored pixels number.
And developer image is attached to by electrostatic force the print paper sent from print engine 3.Fixing roller 41 is heated by the heating of well heater 41a while rotating, and therefore, while the chien shih print paper of fixing roller 41 and backer roll 42 passes through, makes developer melting and fixing on print paper.Now, developer directly contacts with the outer peripheral face of fixing roller 41, and a part is attached on the outer peripheral face of fixing roller 41.
Like this, the developer being attached to fixing roller 41 outer peripheral face moves along with the rotation of fixing roller 41, and arrives the clamping part between fixing roller 41 and clean net 43.And CPU91 does not now make core 45 rotate and make clean net 43 stop.Therefore, clean net 43 reaches the developer of clamping part as mentioned above from the outer peripheral face scraping of fixing roller 41.
In Act6, CPU91 confirms that whether the first count value is consistent with predetermined first number.First number is such as suitably set as during the printing carrying out this number by the deviser etc. of digit apparatus 100, the clean net 43 of the clamping part between clean net 43 and fixing roller 41 does not stockpile and scraping can not be attached to the value of the developer of the developer level of fixing roller 41 outer peripheral face.As an example, the first number it is contemplated that and is set as 7.
CPU91 due to the first count value and the first number inconsistent and when being judged to be no at Act6, skipping Act7, Act8, enter Act9.
In Act9, CPU91 confirms whether the print job implemented completes.And when being judged to be no because the print job implemented does not complete, CPU91 returns Act3, repeats process thereafter as hereinbefore.So, CPU91 not to complete and the first count value repeats Act3-Act6, Act9 during not reaching the first number in the print job implemented.Thus, clean net 43 is in halted state always, repeatedly prints in this condition.Then, CPU91, when the first count value reaches the first number and is judged to be at Act6 by such action, enters Act7.
In Act7, CPU91 is reeled by core 45 and cleans net 43, makes the amount of movement on the clamping part between fixing roller 41 and clean net 43 be the first amount of movement.Specifically, CPU91 makes the motor that core 45 is rotated be included in the motor of group of motors 6 rotate for realizing a certain amount of of above-mentioned amount of movement.First amount of movement can by suitably settings such as the devisers of digit apparatus 100, and in the present embodiment, the first amount of movement is less than the clamping amplitude (ニ ッ プ width) between fixing roller 41 and clean net 43.Like this, based on control program, CPU performs control treatment, therefore, is that the computing machine of maincenter part plays function as control part with CPU91.
In Act8, the first count value resets by CPU91.Namely, whenever making clean net 43 move the first amount of movement, the first count value just resets by CPU91.So, the first count value represents the number of prints after making clean net 43 move the first amount of movement.Afterwards, CPU91 enters Act9.
CPU91 repeats above-mentioned Act3-Act9, and thus, whenever terminating the printing of the first number converted by reference dimension, CPU91 makes clean net 43 move the first amount of movement.
Fig. 3, Fig. 4 and Fig. 5 are the schematic diagram amplifying the clamping part periphery illustrated between fixing roller 41 and clean net 43.In these Fig. 3-Fig. 5, in order to easy understand cleans the adhesion condition of the developer on net 43, exaggeration shows the layer of developer.And.For this reason, fixing roller 41 and clean net 43 are shown discretely.
In state when the first count value reaches consistent with the first number, the first state, such as, shown in Fig. 3, be attached on clean net 43 in the Zone Full of the clamping part of developer D between fixing roller 41 and clean net 43.
In state, i.e. the second state after CPU91 makes clean net 43 move in Act7, such as shown in Fig. 4, by the movement of clean net 43, the adhering zone of developer D also to stagger the first amount of movement from clamping part, and the region that do not use of clean net 43 is positioned at a part for clamping part.Thereby, it is possible to be attached to the developer on fixing roller 41 by clean net 43 again scraping.
And CPU91, when the print job because implementing terminates and is judged to be in Act9, enters Act10.
In Act10, CPU91 makes the printing action started in Act2 stop.Like this, implement to print action during enforcement print job, during this period, fixing roller 41 continuous rotation.And, with end print job correspondingly, stop the rotation of fixing roller 41.That is, in the present embodiment, between the implementation period of a print job for fixing roller 41 start to rotate after rotate stop to it during.
In Act11, CPU91 confirms whether the second count value is more than the second number and less than the 3rd number.Second and third number is such as suitably set by the deviser etc. of digit apparatus 100, and the relation of " the first number < second number < the 3rd number " is set up.So CPU91, when the relation because of " the second number≤the second count value < the 3rd number " is false and is judged to be no, enters Act12.
In Act12, CPU91 confirms whether the second count value is more than or equal to the 3rd number.So CPU91 enters Act13 when the relation because of " the second count value >=the 3rd number " is set up and is judged to be.
In Act13, CPU91 confirms whether the up-to-date mean pixel number calculated is more than or equal to the first pixel count in Act5.So CPU91, when the relation because of " mean pixel number >=the first pixel count " is set up and is judged to be, enters Act15.
On the other hand, CPU91, when the relation because of " the second number≤the second count value < the 3rd number " is set up and is judged to be at Act11, enters Act14.
In Act14, CPU91 confirms whether the up-to-date mean pixel number calculated is more than or equal to the second pixel count in Act5.So.CPU91, when the relation because of " mean pixel number >=the second pixel count " is set up and is judged to be, enters Act15.
Like this, CPU91, when the relation of " the second count value >=the 3rd number " and the relation of " mean pixel number >=the first pixel count " are all set up and when the relation of " the second number≤the second count value < the 3rd number " and the relation of " mean pixel number >=the second pixel count " all set up, enters Act15.It should be noted that the first and second pixel count is such as suitably set by the deviser etc. of digit apparatus 100, the relation making " the first pixel count < second pixel count " such is set up.As an example, suppose the colored pixels number be set to by the first pixel count in the image of newspaper degree, the second pixel count is set to the colored pixels number in half tone image.
In Act15, CPU91 is reeled by core 45 and cleans net 43, makes the amount of movement on the clamping part between fixing roller 41 and clean net 43 be the second amount of movement.Specifically, CPU91 makes the motor that core 45 is rotated be contained in the motor of group of motors 6 rotate for realizing a certain amount of of above-mentioned amount of movement.Like this, based on control program, CPU91 performs control treatment, thus, is that the computing machine of maincenter part plays function as control part with CPU91.Second amount of movement suitably can be set by the deviser of digit apparatus 100 etc., but, be at least greater than the first amount of movement.It is further preferred that the second amount of movement is set be greater than clamping amplitude between fixing roller 41 and clean net 43.Then, if finish the winding of clean net, CPU91 then terminates the control treatment relevant to this print job.
It should be noted that, from CPU91, the rotation to fixing roller 41 after the motor making fixing roller 41 rotate be contained in the motor of group of motors 6 stopping is stopped having the some time delayed.Therefore, CPU91 adjusts execution opportunity of Act15, with make through this time lag the rotation of fixing roller 41 after stopping completely clean net 43 move.
In state, the i.e. third state after CPU91 makes clean net 43 move in Act15, such as shown in Fig. 5, due to the movement of clean net 43, the adhering zone of developer D also to stagger the second amount of movement from clamping part, only has the region that do not use of clean net 43 to be positioned at clamping part.Thus, until next print job occur standby period, the state that the developer being maintained by clean net 43 scraping does not contact with fixing roller 41.
And, CPU91 because of the second count value be judged to be no less than the 3rd number in Act12 time, because of when the up-to-date mean pixel number calculated of Act5 is judged to be no less than the first pixel count in Act13 or because of when the up-to-date mean pixel number calculated of Act5 is judged to be no less than the second pixel count in Act14, does not perform Act15 and terminate the control treatment relevant to this print job.
As mentioned above, in the implementation process of print job, carried out the printing of the first number converted by reference dimension, clean net 43 is mobile first amount of movement just at every turn.The movement of this clean net 43 is attached to the developer on fixing roller 41 ability in order to maintain scraping when the printing of upper once the first number is carried out.
And at the end of print job, when the number of prints by reference dimension conversion in the print job that this terminates and average pixel count meet predetermined condition, clean net 43 moves the second amount of movement.The movement of this clean net 43 is carried out to form the state do not contacted with fixing roller 41 by the developer of clean net 43 scraping.
Fig. 6 illustrates the figure for making clean net 43 move the winding performance of the clean net 43 of the second amount of movement at the end of print job.
As shown in Figure 6, the second count value, namely number of prints is less than or equal to the second number time, regardless of mean pixel number, do not reel.
When number of prints be more than or equal to the second number and less than the 3rd number time, if mean pixel number is more than or equal to the second pixel count, then reel.
When number of prints is more than or equal to the 3rd number, if mean pixel number is more than or equal to the first pixel count, then reel.
In print job, when having carried out printings of multiple numbers, when have printed the image of multiple high concentrations, the adhesion amount being attached to the developer of fixing roller 41 outer peripheral face also can increase.And in this case, the clamping part between fixing roller 41 and clean net 43 can stockpile many developers.And the developer that the clamping part between fixing roller 41 and clean net 43 stockpiles is more, developer more can by brute force by the outer peripheral face being pressed in fixing roller 41.Like this, if stop the rotation of fixing roller 41 in this state, then likely when rotating fixing roller 41 subsequently, developer is attached to the outer peripheral face of fixing roller 41 and moves to the clamping part side of fixing roller 41 and backer roll 42, thus causes polluting backer roll 42, print paper.
But, as previously mentioned, after the print job that the use amount of developer is likely more terminates, carry out the movement of the second amount of movement of clean net 43.Therefore, until the standby period that next print job starts prevents developer to be pressed against the outer peripheral face of fixing roller 41, above-mentioned defect can be prevented trouble before it happens.
And then, as previously mentioned, be only limitted to the movement of the second amount of movement carrying out clean net 43 after the print job that the use amount of developer is likely more terminates, after the print job that the use amount of developer is likely less terminates, do not carry out the movement of the second amount of movement of clean net 43.Therefore, it is possible to the number of times of the movement of the second amount of movement of clean net 43 is limited to Min., the unnecessary consumption of clean net 43 can be prevented.
And, after the rotation of fixing roller 41 stops completely, carry out the movement of the second amount of movement of clean net 43.Thereby, it is possible to by clean net 43 stably scraping be accumulated in fixing roller 41 and the developer in the clamping part of clean net 43.
Like this, according to digit apparatus 100, the separately movement of employing first amount of movement and the movement of the second amount of movement as described above, thus, first amount of movement is set to the minimal amount that can maintain the ability of clean fixing roller during printing the first number converted by reference dimension, and, second amount of movement is set to not make the developer being attached to clean net 43 be attached to sufficient amount on fixing roller 41, therefore, the consumption of clean net can be limited in necessary Min., and prevent the pollution of fixing roller 41, cleaning capacity can be made and clean can both term of life balancing of net, and effectively use clean net.
Present embodiment can be carried out following various distortion and be implemented.
The movement of the second amount of movement of clean net 43 also can be carried out when any one or the establishment of multiple condition only when a condition is set up or in the condition of more than three.
The movement of the second amount of movement of clean net 43 also can start before the rotation of fixing roller 41 stops.
Second amount of movement also can be less than the clamping amplitude between fixing roller 41 and clean net 43.Now, when the rotation of fixing roller 41 stops, a part for the developer of the clamping part between fixing roller 41 and clean net 43 remains in this clamping part, therefore, developer is prevented to be attached to effect variation compared with above-mentioned embodiment of fixing roller 41, but, with do not carry out completely clean net 43 the second amount of movement movement situation compared with, developer can be reduced and be attached on fixing roller 41.And, thus compared with above-mentioned embodiment, the consumption of clean net 43 can be reduced.
By confirming in Act9 whether the condition making fixing roller 41 stop is set up, thus the situation that print job consecutive hours do not make the rotation of fixing roller 41 stop can being adapted to.Now, also likely from the rotation of fixing roller 41 to its rotate stop during and a print job implementation period between inconsistent.
Such as can as carry out when colored pixels number reaches a fixed number the first amount of movement clean net 43 movement etc. so suitably change the determination methods of the formation volume of developing material.
For determining whether condition judgment, the condition judgment of being only correlated with mean pixel number or the condition judgment etc. relevant with the sum of colored pixels that the condition judgment replaceable one-tenth relevant with the formation situation of developer image of the movement of the clean net 43 carrying out the second amount of movement is only correlated with the second count value.
The present invention also can be applicable to the independently image processing system be not included in digit apparatus 100 or the image processing system be assembled in the miscellaneous equipments such as duplicating machine.
Some embodiments of the present invention are illustrated, but these embodiments just propose as an example, and are not used in restriction scope of invention.These new embodiments can be implemented with other various forms, in the scope of main idea not departing from invention, can various omission, displacement, change be carried out.These embodiments and distortion thereof are included in scope of the present invention or main idea, and, be included in and be recorded in invention in claims and equivalent scope thereof.
Symbol description
1 scanner 2 sheet feed section
3 print engine 4 fixing sections
5 ADU 6 group of motors
7 sensor group 8 systems control divisions
9 print control section 10 discharge trays
41a well heater 41 fixing roller
42 backer rolls 43 clean net
44,45 core 46 crimping rollers
91CPU92ROM
93RAM94 auxiliary storage portion
95 interface portion 96 system buss
100 digit apparatus.
Claims (10)
1. an image processing system, is characterized in that, comprising:
Image forming part, sheet medium forms developer image;
Fixing roller, while rotation, heats the developer forming described developer image, makes described developer fixing in described sheet medium;
Clean net, contacts with the region of the circumferencial direction of the described fixing roller in the face of the described developer image of the contact of described fixing roller, developer described in scraping from described fixing roller;
Moving part, can make described clean net move under the state contacted with described fixing roller; And
Control part, when the formation volume of described developer image reaches the first ormal weight, described control part controls described moving part, described clean net is moved with the first amount of movement, when the formational situation of the described developer image during stopping to the rotation of described fixing roller when the rotation from described fixing roller meets predetermined condition, described control part controls described moving part, and described clean net is moved with the second amount of movement being greater than described first amount of movement.
2. image processing system according to claim 1, is characterized in that, described first amount of movement is less than the clamping amplitude between described fixing roller and described clean net, and described second amount of movement is greater than described clamping amplitude.
3. image processing system according to claim 1, it is characterized in that, described predetermined condition is set as following situation: namely, in described period as the sheet medium of object forming described developer image in described image forming part, be more than regulation number by the number that reference dimension converts and the formation volume of the described developer image on average often opened on the sheet medium of described reference dimension in described period is more than the second ormal weight.
4. image processing system according to claim 2, it is characterized in that, described predetermined condition is set as following situation: namely, in described period, be more than regulation number as the sheet medium of object forming described developer image in described image forming part by the number that reference dimension converts and in described period, the formation volume of on average often opening the described developer image on the sheet medium of described reference dimension is more than the second ormal weight.
5. image processing system according to claim 3, is characterized in that,
Described predetermined condition comprises the different and multiple conditions that described second ormal weight is different of described regulation number,
And in each condition in described multiple condition, described regulation number is larger, and described second ormal weight is less.
6. image processing system according to claim 4, is characterized in that,
Described predetermined condition comprises the different and multiple conditions that described second ormal weight is different of described regulation number,
And in each condition in described multiple condition, described regulation number is larger, and described second ormal weight is less.
7. image processing system according to any one of claim 1 to 6, is characterized in that,
The number that described formation volume converts as the sheet medium becoming the object forming described developer image in described image forming part by reference dimension counts by described control part, and, when this number reaches the number set as described first ormal weight, described control part controls described moving part, and described clean net is moved with described first amount of movement.
8. a control method for image processing system, described image processing system comprises: image forming part, and sheet medium forms developer image; Fixing roller, while rotation, heats the developer forming described developer image, makes described developer fixing in described sheet medium; Clean net, contacts with the region of the circumferencial direction of the described fixing roller in the face of the described developer image of the contact of described fixing roller, developer described in scraping from described fixing roller; And moving part, described clean net can be made to move under the state contacted with described fixing roller, and the feature of described control method is,
When the formation volume of described developer image reaches the first ormal weight, control described moving part, described clean net is moved with the first amount of movement, when the formational situation of the described developer image during stopping to the rotation of described fixing roller when the rotation from described fixing roller meets predetermined condition, control described moving part, described clean net is moved with the second amount of movement being greater than described first amount of movement.
9. the control method of image processing system according to claim 8, is characterized in that, described first amount of movement is less than the clamping amplitude between described fixing roller and described clean net, and described second amount of movement is greater than described clamping amplitude.
10. the control method of image processing system according to claim 8 or claim 9, it is characterized in that, described predetermined condition is set as following situation: namely, in described period as the sheet medium of object forming described developer image in described image forming part, be more than regulation number by the number that reference dimension converts and the formation volume of the described developer image on average often opened on the sheet medium of described reference dimension in described period is more than the second ormal weight.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014091792A JP2015210378A (en) | 2014-04-25 | 2014-04-25 | Image forming apparatus and control program thereof |
| JP2014-091792 | 2014-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105045075A true CN105045075A (en) | 2015-11-11 |
| CN105045075B CN105045075B (en) | 2018-07-20 |
Family
ID=54451698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510180829.9A Expired - Fee Related CN105045075B (en) | 2014-04-25 | 2015-04-16 | Image forming apparatus and its control method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015210378A (en) |
| CN (1) | CN105045075B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005017898A (en) * | 2003-06-27 | 2005-01-20 | Toshiba Corp | Fixing device and drive control method for the same |
| CN1734372A (en) * | 2004-08-09 | 2006-02-15 | 夏普株式会社 | Fixing apparatus and image forming apparatus having the same |
| CN101266449A (en) * | 2007-03-14 | 2008-09-17 | 夏普株式会社 | Fuser unit and image forming apparatus equipped with the same |
| CN101630140A (en) * | 2008-07-14 | 2010-01-20 | 夏普株式会社 | Cleaning apparatus using web sheet |
| US20110008081A1 (en) * | 2009-07-09 | 2011-01-13 | Yuichi Aoyama | Fixing device and image forming apparatus |
| JP2012098398A (en) * | 2010-10-29 | 2012-05-24 | Brother Ind Ltd | Image forming device |
| JP2012155024A (en) * | 2011-01-24 | 2012-08-16 | Canon Inc | Printing apparatus, method for controlling the printing apparatus, and program |
| CN102785490A (en) * | 2011-05-17 | 2012-11-21 | 佳能株式会社 | Printing apparatus that cleans fixing device, method of controlling the printing apparatus, and storage medium |
-
2014
- 2014-04-25 JP JP2014091792A patent/JP2015210378A/en active Pending
-
2015
- 2015-04-16 CN CN201510180829.9A patent/CN105045075B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005017898A (en) * | 2003-06-27 | 2005-01-20 | Toshiba Corp | Fixing device and drive control method for the same |
| CN1734372A (en) * | 2004-08-09 | 2006-02-15 | 夏普株式会社 | Fixing apparatus and image forming apparatus having the same |
| CN101266449A (en) * | 2007-03-14 | 2008-09-17 | 夏普株式会社 | Fuser unit and image forming apparatus equipped with the same |
| CN101630140A (en) * | 2008-07-14 | 2010-01-20 | 夏普株式会社 | Cleaning apparatus using web sheet |
| US20110008081A1 (en) * | 2009-07-09 | 2011-01-13 | Yuichi Aoyama | Fixing device and image forming apparatus |
| JP2012098398A (en) * | 2010-10-29 | 2012-05-24 | Brother Ind Ltd | Image forming device |
| JP2012155024A (en) * | 2011-01-24 | 2012-08-16 | Canon Inc | Printing apparatus, method for controlling the printing apparatus, and program |
| CN102785490A (en) * | 2011-05-17 | 2012-11-21 | 佳能株式会社 | Printing apparatus that cleans fixing device, method of controlling the printing apparatus, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105045075B (en) | 2018-07-20 |
| JP2015210378A (en) | 2015-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2501059C2 (en) | Printing apparatus capable of preventing sheet feed error when cleaning, method of controlling printing apparatus, and data medium | |
| US7483663B2 (en) | Fixing apparatus having a cleaning member and image forming apparatus having the same | |
| KR20130061627A (en) | Image forming apparatus | |
| US20060210289A1 (en) | Image forming apparatus | |
| CN101373353B (en) | Image forming apparatus and cleaning method thereof | |
| JP6365095B2 (en) | Image forming apparatus | |
| US20150147077A1 (en) | Image forming apparatus, temperature control method for use in fixing device, and non-transitory recording medium | |
| CN106483803B (en) | Image formation system, image forming apparatus and transfer condition change method | |
| JP2009063906A (en) | Image forming apparatus | |
| JP2004226888A (en) | Image forming apparatus | |
| CN105045075A (en) | Image forming apparatus and controlling method for the image forming apparatus | |
| JP5458917B2 (en) | Image forming apparatus | |
| JP4550744B2 (en) | Image forming apparatus | |
| KR100727928B1 (en) | Fixing unit, image forming apparatus with the same, and method for controlling fixing unit | |
| JP4435644B2 (en) | Image forming apparatus | |
| JP5109503B2 (en) | Image forming apparatus | |
| JP2009007108A (en) | Paper discharge device, post-processing device, and image forming device | |
| JP2009216731A (en) | Image forming apparatus | |
| JP6253314B2 (en) | Image forming apparatus | |
| EP2120102A1 (en) | Method of cleaning a toner image carrier | |
| JP6213398B2 (en) | Image forming apparatus and cleaning member movement control method | |
| JP2011197175A (en) | Fixing device and image-forming device | |
| JP6107732B2 (en) | Image forming apparatus | |
| JP6500574B2 (en) | Image forming device | |
| JP4877266B2 (en) | Image forming apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 Termination date: 20190416 |