CN105323909A - Light-emitting element array module and method for controlling Light-emitting element array chips - Google Patents
Light-emitting element array module and method for controlling Light-emitting element array chips Download PDFInfo
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- CN105323909A CN105323909A CN201510362939.7A CN201510362939A CN105323909A CN 105323909 A CN105323909 A CN 105323909A CN 201510362939 A CN201510362939 A CN 201510362939A CN 105323909 A CN105323909 A CN 105323909A
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- 238000000034 method Methods 0.000 title claims description 35
- 238000010023 transfer printing Methods 0.000 claims description 79
- 238000012545 processing Methods 0.000 claims description 13
- 238000003491 array Methods 0.000 claims description 7
- 238000004020 luminiscence type Methods 0.000 claims description 5
- 230000003111 delayed effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000004422 calculation algorithm Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 108010076504 Protein Sorting Signals Proteins 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5075—Remote control machines, e.g. by a host
- G03G15/5087—Remote control machines, e.g. by a host for receiving image data
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/04—Arrangements for exposing and producing an image
- G03G2215/0402—Exposure devices
- G03G2215/0407—Light-emitting array or panel
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
Abstract
A light-emitting element array module includes a control driver configured to receive print data and operate, and light-emitting element array chips configured to receive a signal from the control driver, respectively, and operate, wherein the light-emitting element array chips are connected to the control driver through respective data lines, and the control driver controls an operation point in time of each of the light-emitting element array chips by adjusting input points in time of a start signal and a data signal according to a registration error of each of the light-emitting element array chips.
Description
The cross reference of related application
This application claims the U.S. Provisional Application 62/017 submitted in U.S.Patent & Trademark Office on June 26th, 2014, these disclosures of applying for all are incorporated to by the priority of No. 10-2014-0130330, the korean patent application that No. 473 and on September 29th, 2014 submit in Korean Intellectual Property Office here by reference.
Technical field
The method relating to light-emitting device array module and control light-emitting device array chip is below described.
Background technology
The image processing system of light-emitting device array chip is used to receive print data from personal computer (personalcomputer, PC) and utilize light-emitting component to form image.When light-emitting component sends light, electrostatic latent image is formed on the photoconductor drum in image processing system.Then, print image is exported by development, transfer printing and fixing.
Light-emitting device array chip is connected to control unit by wire-bonded (wirebonding).Therefore, the wire-bonded with the number as much of the signal exported from control unit is needed.
Summary of the invention
One or more embodiment include reducing the light-emitting device array module of the number of wire-bonded, and controls the method for light-emitting device array chip.
One or more embodiment comprises and applies extra so that the method for transferring member that comprises of operating light-emitting element arrays module reposefully to light-emitting component.
An other aspect part will be recorded in ensuing description, and a part will be clear from the description and manifests, or know by putting into practice the embodiment provided.
According to one or more embodiment, a kind of light-emitting device array module comprises: be configured to receive print data and the control and drive system of operation, and be configured to respectively from the light-emitting device array chip that control and drive system Received signal strength also operates, wherein light-emitting device array chip is connected to control and drive system by each data wire, and control and drive system is by controlling the operating time point of each light-emitting device array chip according to the registration error adjustment commencing signal of each light-emitting device array chip and some input time of data-signal.
According to one or more embodiment, a kind of method controlling light-emitting device array chip comprises: receive print data, commencing signal is applied to each light-emitting device array chip by data wire, and data-signal is applied by data wire to each light-emitting device array chip after applying commencing signal, wherein commencing signal applies at the operating time point of each light-emitting device array chip according to the registration error of each light-emitting device array chip.
According to one or more embodiment, a kind of method controlling light-emitting device array chip comprises: receive print data, apply the transfer printing signal of operation transferring member array, apply the data-signal of operating light-emitting element arrays, and just change to from high level the extra that low level time point applies to make light-emitting component luminescence at transfer printing signal.
According to one or more embodiment, a kind of light-emitting device array module comprises: the light-emitting device array chip with light-emitting device array and transferring member array, and apply to operate the transfer printing signal of transferring member array by receiving print data and apply the control and drive system of the data-signal of operating light-emitting element arrays, wherein control and drive system just changes to from high level the extra that low level time point applies to make light-emitting component luminescence at transfer printing signal.
Accompanying drawing explanation
By below in conjunction with the description of accompanying drawing to embodiment, these and/or other aspect will become clear and more comprehensible, in accompanying drawing:
Fig. 1 illustrates the figure utilizing light-emitting device array to carry out the process of output image;
Fig. 2 is the figure of the light-emitting device array module illustrated according to embodiment;
Fig. 3 is the figure of the example of the light-emitting device array module illustrated according to embodiment;
Fig. 4 is the figure of the example of the light-emitting device array module illustrated according to embodiment;
Fig. 5 is the block diagram of the light-emitting device array module according to embodiment;
Fig. 6 is the block diagram of the light-emitting device array module according to embodiment;
Fig. 7 is the figure of the example of the light-emitting device array chip illustrated according to embodiment;
Fig. 8 is the sequential chart of the signal from control and drive system output;
Fig. 9 is the sequential chart of the signal from control and drive system output;
Figure 10, Figure 11 and Figure 12 are the figure of the applying timing illustrating commencing signal;
Figure 13 illustrates the figure compensated the registration error of light-emitting device array chip;
Figure 14 is the flow chart of the method for control light-emitting device array chip according to embodiment;
Figure 15 is the sequential chart controlling the method for the operation of transferring member by applying extra;
Figure 16 is the sequential chart controlling the method for the operation of transferring member by applying extra; And
Figure 17 is the flow chart of the method for control light-emitting device array chip according to embodiment.
Embodiment
To refer to embodiment in detail now, the example of embodiment illustrates in the accompanying drawings, and label similar in accompanying drawing refers to similar element all the time.At this, embodiment here can have different forms and should not be construed as limited to description described herein.Thus, be only embodiment is described with reference to the drawings so that each side of this description to be described below.As use alpha nerein, word "and/or" comprises one or more any and all combinations listed in project of association.The individual element of volume that the statement of such as " among at least one " and so on is modified whole element list instead of modified in list when before element list.
Various embodiment and amendment and embodiment illustrate in the accompanying drawings and are described in detail.But will be understood that, embodiment comprises the amendment belonged in the spirit and scope of inventive concept, is equal to and substitutes.
Although the such as word of " first " and " second " and so on can be used for describing various element or assembly in this article, these elements or assembly should not limit by these words.These words are for distinguishing an element or assembly and another element or assembly.
Word used herein describes embodiment, and does not intend to limit the scope of inventive concept.As use alpha nerein, singulative " " and " being somebody's turn to do " are intended to also comprise plural form, unless context separately has instruction clearly.Will be understood that, such as " comprise ", other features one or more do not got rid of as use alpha nerein in the word of " comprising " and " having " and so on, integer, step, operation, element, the existence of assembly or its combination or interpolation.
Below, embodiment is described in detail with reference to the attached drawings.In the following description, similar label represents similar element, and omits the redundancy description to it.
Fig. 1 illustrates the figure utilizing light-emitting device array to carry out the process of output image.With reference to figure 1, when receiving print data from personal computer (PC) 50, image processing system performs the operation being used for output image.
Image processing system utilizes light-emitting component to form electrostatic latent image on photoconductor drum 300, and by development, transfer printing and fixing output image.
Image processing system comprises control and drive system 110, chip array 120, lens arra 200 and photoconductor drum 300.
Control and drive system 110 is according to the print data control chip array 120 received from PC50.Chip array 120 comprises multiple light-emitting device array chip.Control and drive system 110 can separately control these light-emitting device array chips.The method that control and drive system 110 controls light-emitting device array chip illustrates in fig. 2.
Lens arra 200 is disposed on the direction of principal axis (that is, main scanning direction) of photoconductor drum 300.The light that have passed lens arra 200 forms image on the surface of photoconductor drum 300.
Photoconductor drum 300 is exposed to light to form electrostatic latent image.Developer (not shown) is to the latent electrostatic image developing be formed on photoconductor drum 300.
Fig. 2 is the figure of the light-emitting device array module illustrated according to embodiment.With reference to figure 2, light-emitting device array module 100 can compensate the registration error of light-emitting device array chip 125 (or correction).Registration error on main scanning direction can be present between light-emitting device array chip 125.When light-emitting device array chip 125 sends light at same time point, the registration error between light-emitting device array chip 125 may not be compensated.Thus the light-emitting device array module 100 according to embodiment compensates by separately controlling the registration error of each light-emitting device array chip 125 to light-emitting device array chip 125.In other words, light-emitting device array module 100 adjusts the time point applying commencing signal to each light-emitting device array chip 125, thus controls the operating time point of light-emitting device array chip 125.
Control and drive system 110 receives print data and operates.The CPU (centralprocessingunit, CPU) that control and drive system 110 comprises from image processing system or mainboard receive print data, and control the on/off of light-emitting component according to the print data received.Print data is the data representing the image that will be formed.Control and drive system 110 controls the on/off of light-emitting component according to print data, controls the operating time point of light-emitting device array chip 125 when considering the registration error of light-emitting device array chip 125.
Control and drive system 110 also comprises the memory (not shown) of the information for storing the operating time point about light-emitting device array chip 125.In other words, control and drive system 110 considers that registration error by the information pre-stored of the operating time point about light-emitting device array chip 125 in memory.
Control and drive system 110 is by separately applying to each light-emitting device array chip 125 the operating time point that commencing signal controls light-emitting device array chip 125.According to the registration error on the main scanning direction of light-emitting device array chip 125, the timing that control and drive system 110 applies commencing signal by adjustment to light-emitting device array chip 125 compensates registration error.In other words, the timing that control and drive system 110 is input to the commencing signal of light-emitting device array chip 125 by adjustment adjusts phototiming, thus on main scanning direction correcting image.
Control and drive system 110 is not that entirely white light-emitting device array chip 125 exports commencing signal to the such as print data among light-emitting device array chip 125.When light-emitting device array chip 125 does not need to send light, control and drive system 110 does not export commencing signal to this light-emitting device array chip 125.Because control and drive system 110 can separately control light-emitting device array chip 125, so control and drive system 110 is not that entirely white light-emitting device array chip 125 exports commencing signal to such as print data, thus decrease unnecessary power consumption.When print data is complete white, may print data be there is no, that is, the image that may will do not formed.
Light-emitting device array module 100 comprises control and drive system 110 and chip array 120.Chip array 120 comprises multiple light-emitting device array chip 125.Control and drive system 110 is connected by wire with light-emitting device array chip 125.
Each light-emitting device array chip 125 respectively from control and drive system 110 Received signal strength, and operates.Light-emitting device array chip 125 according to the commencing signal operation separately received from control and drive system 110, and sends light according to data-signal (or connection signal).Can by word mode and points two row arrange light-emitting device array chips 125.
Fig. 3 is the figure of the example of the light-emitting device array module illustrated according to embodiment.
Control and drive system 110 exports commencing signal and data-signal by terminal Φ i1 to Φ i5 to light-emitting device array chip 125.Terminal Φ i1 to Φ i5 in control and drive system 110 is independently connected to each light-emitting device array chip 125.Thus control and drive system 110 separately controls each light-emitting device array chip 125 by applying commencing signal via terminal Φ i1 to Φ i5 to each light-emitting device array chip 125.
Control and drive system 110 exports commencing signal and data-signal by data wire.By before data wire input data signal, by wherein have input the data wire input commencing signal of commencing signal.After applying commencing signal, transferring member array processing.Data wire refers to wire terminal Φ i1 to the Φ i5 of control and drive system 110 being connected to each light-emitting device array chip 125.The registration error adjustment commencing signal of control and drive system 110 according to each light-emitting device array chip 125 and some input time of data-signal, thus control the operating time point of each light-emitting device array chip 125.Control and drive system 110 applies commencing signal and data-signal in time of delay to each light-emitting device array chip 125 according to the registration error of each light-emitting device array chip 125, thus compensates registration error.Time of delay is the multiple in cycle of the transfer printing signal applied in each light-emitting device array chip 125.
Control and drive system 110 or image processing system also can comprise for storing each registration error of light-emitting device array chip 125 and the memory of time of delay.
Commencing signal input terminal Φ s1 to the Φ s5 of light-emitting device array chip 125 can be parallel-connected to data signal input terminal Φ i1 to the Φ i5 of light-emitting device array chip 125 respectively.Such as, the terminal Φ i1 of light-emitting device array chip 125 and Φ s1 can be parallel-connected to each other.Thus, there is no need for the individual conductor of each of terminal Φ s1 to the Φ s5 of connection control driver 110 and light-emitting device array chip 125.Commencing signal input terminal Φ s1 to Φ s5 represents the grid of transferring member.Data signal input terminal Φ i1 to Φ i5 represents the negative electrode of light-emitting component.
Control and drive system 110 exports transfer printing signal by terminal Φ 1 and Φ 2.Identical transfer printing signal Phi 1 and Φ 2 are received by light-emitting device array chip 125.Vga refers to ground.
Fig. 4 is the figure of the example of the light-emitting device array module illustrated according to embodiment.With reference to figure 4, commencing signal input terminal Φ s1 to Φ s5 and data signal input terminal Φ i1 to the Φ i5 corresponding respectively with commencing signal input terminal Φ s1 to Φ s5 is connected internally to each other at light-emitting device array chip 125.Therefore, the number of the wire-bonded of light-emitting device array chip 125 outside can be reduced.
Fig. 5 is the block diagram of the light-emitting device array module according to embodiment.With reference to figure 5, the terminal Φ i of the light-emitting device array 127 and terminal Φ s of transferring member array 126 can be parallel-connected to each other.
Control and drive system 110 applies signal to the transferring member array 126 of light-emitting device array chip 125 and light-emitting device array 127.Control and drive system 110 applies commencing signal to control the operating time point of transferring member array 126 by the terminal Φ i of control and drive system 110.
Transferring member array 126 comprises the multiple transferring members based on commencing signal and transfer printing signal operation.Transferring member array 126 starts operation when applying commencing signal by terminal Φ s.Multiple transferring members that element arrays 126 comprises sequentially operate.
Light-emitting device array 127 comprises the multiple light-emitting components based on data-signal operation.
The lighting conditions of light-emitting component can be determined according to the state of transferring member.Transferring member and light-emitting component can mate one to one.In order to allow light-emitting component send light, the transferring member corresponding with this light-emitting component must in dormant state.When transferring member is in dormant state, the on/off of light-emitting component can be determined according to the data-signal being input to light-emitting component.When commencing signal is imported into transferring member, transferring member enters dormant state according to transfer printing signal sequence.
Control and drive system 110 exports commencing signal by using the data-signal being applied to light-emitting device array 127 to transferring member array 126.Control and drive system 110 exports commencing signal by the terminal Φ i of control and drive system 110 to transferring member array 126.After output commencing signal, control and drive system 110 passes through the terminal Φ i of light-emitting device array 127 to light-emitting device array 127 outputting data signals from the terminal Φ i of control and drive system 110.
The commencing signal input terminal (terminal Φ s) of transferring member array 126 and the data signal input terminal (terminal Φ i) of light-emitting device array 127 can be connected to the lead-out terminal (terminal Φ i) of control and drive system 110.Thus the signal (Φ i signal) exported from control and drive system 110 can be simultaneously input to transferring member array 126 and light-emitting device array 127.Thus commencing signal input terminal Φ s and the control and drive system 110 of transferring member array 126 be can't help independent wire and are connected.
Transferring member array 126 comprises multiple transferring member, and light-emitting device array 127 comprises multiple light-emitting component.Transferring member can be controlled by commencing signal and transfer printing signal (that is, Φ 1 and Φ 2).Transferring member starts operation when commencing signal and transfer printing signal Phi 1 are applied simultaneously.In other words, transferring member starts operation in a case where: while applying transfer printing signal Phi 1, apply commencing signal by the terminal Φ s of transferring member array 126.Light-emitting device array 127 can be switched on according to the state of data-signal and transferring member.
Transfer printing signal can have two electromotive forces replaced.When the first voltage is high level voltage, the second voltage is low level voltage.
Commencing signal can have the voltage level contrary with transfer printing signal Phi 1.Such as, if transfer printing signal Phi 1 has low level voltage, then commencing signal can have high level voltage.On the other hand, if transfer printing signal Phi 1 has high level voltage, then commencing signal can have low level voltage.Control and drive system 110 is by applying according to the cycle of transfer printing signal Phi 1 and Φ 2 operation that commencing signal controls transferring member.
Fig. 6 is the block diagram of the light-emitting device array module according to embodiment.With reference to figure 6, the terminal Φ i of the light-emitting device array 127 and terminal Φ s of transferring member array 126 can be connected internally to each other at light-emitting device array chip 125.
Fig. 7 is the figure of the example of the light-emitting device array chip illustrated according to embodiment.With reference to figure 7, input commencing signal and data-signal by identical terminal Φ i.Light-emitting device array chip 125 comprises diode Ds and the resistor Rs of forward connection.Commencing signal and data-signal are imported into the terminal Φ i of light-emitting device array chip 125.The level of the voltage of commencing signal is identical with the maximum level of the voltage of data-signal.Thus, transferring member or light-emitting component inoperation before commencing signal is imported into light-emitting device array chip 125.
Disclose the operation of transferring member and light-emitting component.
Light-emitting device array 127 comprises multiple luminous thyristor (thyristor), and transferring member array 126 comprises multiple transfer printing thyristor.In other words, light-emitting component can be luminous thyristor, and transferring member can be transfer printing thyristor.Light-emitting component is represented as L1 to L256, and transferring member is represented as T1 to T256.
Thyristor has PNPN junction structure and comprises grid.In the figure 7, comprise 256 thyristors at a light-emitting device array chip 125, and G1 to G256 represents the gate terminal of these thyristors respectively.When determining that the voltage of more than level is applied to the grid of thyristor, the puncture voltage of thyristor is lowered, thus the operating voltage of thyristor is lowered.Thus, apply voltage by the grid to thyristor, operation of thyristors can be carried out by lower driving voltage.
Commencing signal provides voltage to the grid G 1 of transfer printing thyristor T1.Commencing signal is provided to grid G 1 by diode Ds.Transfer printing thyristor T1 starts operation when commencing signal and transfer printing signal Phi 1 are applied simultaneously.Then, transfer printing thyristor T2 to T256 sequentially enters mode of operation according to transfer printing signal Phi 1 and Φ 2.
When transfer printing thyristor T1 is in mode of operation, luminous thyristor L1 enters luminance.The grid G 1 of transfer printing thyristor T1 equals the grid of luminous thyristor L1.Thus when transfer printing thyristor T1 enters mode of operation, luminous thyristor L1 also enters mode of operation.When luminous thyristor L1 is in mode of operation, luminous thyristor L1 sends light according to the data-signal inputted by terminal Φ i.
By repeating this process, transfer printing thyristor T1 to T256 sequentially enters mode of operation, and luminous thyristor L1 to L256 enters mode of operation, and sequentially sends light or do not send light.
Commencing signal and data-signal are inputted by terminal Φ i.Commencing signal is applied to the grid G 1 of transfer printing thyristor T1 by resistor Rs and diode Ds.Commencing signal inputted before input data signal.Commencing signal is applied to each light-emitting device array chip 125 while transfer printing signal Phi 1 is transfused to, thus some input time of registration error determination commencing signal according to each light-emitting device array chip 125.
Fig. 8 is the sequential chart of the signal from control and drive system output.With reference to figure 8, control and drive system 110 can drive transferring member when not having independent commencing signal.
As shown in Figure 8, control and drive system 110 maintains high level voltage by terminal Φ i.Control and drive system 110 is outputting data signals while maintenance high level voltage.Control and drive system 110 exports the first data-signal when Φ 1 signal is in low state.Therefore, light-emitting device array module 100 can drive transferring member when not applying independent commencing signal.
First transfer printing signal Phi 1 can be applied to odd number transfer printing thyristor, and the second transfer printing signal Phi 2 can be applied to even number transfer printing thyristor.
First transfer printing signal Phi 1 and the second transfer printing signal Phi 2 have high level and low level two electromotive forces and alternately enter high state and low state.First transfer printing signal Phi 1 and the second transfer printing signal Phi 2 are during time ta and overlap each other.This advances into dormant state in order to what enable next transfer printing thyristor terminate in the operation of last transfer printing thyristor.Time tb is the time determined for the stable operation of light-emitting component, and time tw is the time of light-emitting component practical operation.
Fig. 9 is the sequential chart of the signal from control and drive system output.With reference to figure 9, control and drive system 110 separately controls each light-emitting device array chip 125 by applying independent commencing signal.
As shown in Figure 9, control and drive system 110 applied commencing signal before by terminal Φ i outputting data signals.The part being expressed as " beginning " in Fig. 9 corresponds to commencing signal.Control and drive system 110 applies commencing signal by high level voltage being maintained a certain amount of time before outputting data signals.But control and drive system 110 can apply commencing signal when transfer printing signal Phi 1 is in low state.
Control and drive system 110 can determine according to each light-emitting device array chip 125 time point applying commencing signal.Because light-emitting device array chip 125 has mutually different registration errors, so control and drive system 110 can determine according to registration error the time point applying commencing signal.In addition, commencing signal is applied when transfer printing signal Phi 1 is in low level.Therefore, control and drive system 110 can apply the commencing signal in the cycle being delayed transfer printing signal Phi 1.
Such as, if the duration of transfer printing signal Phi 1 in high level or low level is T, then control and drive system 110 often can apply commencing signal by 2T.This will describe in detail in Figure 10 to Figure 12.
Apply commencing signal Φ s when the first transfer printing signal Phi 1 is in low state, and the first transfer printing thyristor T1 connects.Now, control and drive system 110 connects the first luminous thyristor L1 by utilizing data-signal Φ i.Then, when the first transfer printing signal Phi 1 enters high state and the second transfer printing signal Phi 2 enters low state, control and drive system 110 utilizes data-signal Φ i to connect the second luminous thyristor L2.By repeating this process, control and drive system 110 can connect the 1st to the 256th luminous thyristor L1 to L256.
Figure 10 to Figure 12 is the figure of the applying timing illustrating commencing signal.With reference to figures 10 to Figure 12, control and drive system 110 can apply commencing signal and the data-signal of delay according to the registration error of light-emitting device array chip 125.The commencing signal that control and drive system 110 can postpone according to the cycle applying of transfer printing signal Phi 1.Because control and drive system 110 needs the commencing signal applying to be in high level when transfer printing signal Phi 1 is in low level, the time point that control and drive system 110 enters low state in transfer printing signal Phi 1 applies commencing signal.
Figure 10 illustrates the example lingeringly not applying commencing signal and data-signal.The high level signal being represented as " beginning " is commencing signal, and control and drive system 110 does not lingeringly apply commencing signal.In other words, the time point that control and drive system 110 is applying transfer printing signal Phi 1 applies commencing signal.Control and drive system 110 sequentially applies data-signal after applying commencing signal.
Figure 11 illustrates and applies to be delayed the commencing signal of 2T and the example of data-signal.Control and drive system 110 applies commencing signal and data-signal to compensate the registration error of light-emitting device array chip 125 in the time being delayed 2T.Because control and drive system 110 applies commencing signal, so control and drive system 110 separately can apply commencing signal to each light-emitting device array chip 125 by terminal Φ i.Such as, if there is the registration error of 2T in light-emitting device array chip 125, then control and drive system 110 can apply commencing signal in the time being delayed 2T.
Figure 12 illustrates and applies to be delayed the commencing signal of 4T and the example of data-signal.Control and drive system 110 applies commencing signal and data-signal to compensate the registration error of light-emitting device array chip 125 in the time being delayed 4T.
Although Figure 10 to Figure 12 illustrates the example that time of delay is 0 to 4T, time of delay can change according to the registration error of light-emitting device array chip 125.In addition, if do not correspond to the multiple of 2T to the make-up time of registration error, then control and drive system 110 can be defined as time of delay with to the multiple of the make-up time of registration error immediate 2T, and can apply commencing signal according to these time of delays.
Figure 13 illustrates the figure compensated the registration error of light-emitting device array chip.The position of light-emitting device array chip 125 may not be suitably arranged between processing period.Therefore, need to compensate the skew of light-emitting device array chip 125.
Based on the first light-emitting device array chip 1301, in the second light-emitting device array chip 1302, generate 2 skews, in the 3rd light-emitting device array chip 1303, generate 4 skews, and generate 6 skews in the 4th light-emitting device array chip 1304.
Control and drive system 110 adjusts the application time point of data according to this skew.Control and drive system 110 checks the skew of first to fourth light-emitting device array chip 1301 to 1304, and determines to offset corresponding time of delay with these.When control and drive system 110 applies data-signal to the second light-emitting device array chip 1302, control and drive system 110 is by applying data-signal by the 2T make-up time.When control and drive system 110 applies data-signal to the 3rd light-emitting device array chip 1303, control and drive system 110 is by applying data-signal by the 4T make-up time.When control and drive system 110 applies data-signal to the 4th light-emitting device array chip 1304, control and drive system 110 is by applying data-signal by the 6T make-up time.
Because data wire is separately connected between control and drive system 110 and first to fourth light-emitting device array chip 1301 to 1304, so control and drive system 110 can determine that each to light-emitting device array chip 1301 to 1304 applies the time point of data-signal.Therefore, control and drive system 110 can determine the time of delay corresponding with each of first to fourth light-emitting device array chip 1301 to 1304, and according to adjusting the time point applying data-signal determined time of delay.In addition, can between processing period, pre-determine time of delay and be stored in memory, so that control and drive system 110 is by applying data-signal with reference to the time of delay storing light-emitting device array chip 125 in memory.
Figure 14 is the flow chart of the method for control light-emitting device array chip according to embodiment.
In operation 1410, control and drive system 110 receives print data.Print data can be received from CPU or PC50.Print data is the data about the image that will be printed by image processing system.
In operation 1420, control and drive system 110 applies commencing signal by data wire to each light-emitting device array chip.Control and drive system 110 applies commencing signal by utilizing the direction of signal transferring member array 126 being applied to the light-emitting device array 127 of light-emitting device array chip 125.
Control and drive system 110 is by separately applying to each light-emitting device array chip 125 the operating time point that commencing signal controls light-emitting device array chip 125.Chip array 120 comprises multiple light-emitting device array chip 125.Control and drive system 110 can apply commencing signal at different time points to each light-emitting device array chip 125.
According to the registration error on the main scanning direction of light-emitting device array chip 125, the timing that control and drive system 110 applies commencing signal by adjustment to each light-emitting device array chip 125 compensates registration error.Registration error is present between each light-emitting device array chip 125, and control and drive system 110 controls the operating time point of each light-emitting device array chip 125 to compensate registration error.In other words, the timing that control and drive system 110 is input to the commencing signal of each light-emitting device array chip 125 by adjustment adjusts phototiming, thus on main scanning direction correcting image.
The data-signal of indicating image is delivered to light-emitting device array 127 by control and drive system 110.The on/off of data-signal indication light element.
In operation 1430, control and drive system 110 applies data-signal by data wire to each light-emitting device array chip 125 after applying commencing signal.Control and drive system 110 is at applying commencing signal and transferring member starts the rear of operation applies data-signal to each light-emitting device array 127.
Figure 15 is the sequential chart controlling the method for the operation of transferring member by applying extra.With reference to Figure 15, control and drive system 110 can apply extra, makes the luminous a certain amount of time (ton) of light-emitting component.
Extra---is made the signal of each light-emitting component luminescence---and is applied by data wire during time ton.Time ton can be the very short time of about a few nanosecond.In addition, just can change to low level time point from high level at transfer printing signal and apply extra.Transfer printing signal just changes to low level time point from high level can refer to that transfer printing signal is reduced to the time point of low level voltage from high level voltage.Extra just can change to low level time point from high level in transfer printing signal Phi 1 and be applied in, or is applied at the time point that transfer printing signal Phi 2 is just changing to high level from low level.In addition, extra just can change to low level all time points from high level in transfer printing signal Phi 1 and Φ 2 and is applied in.The time point that the transfer printing signal Phi 1 that illustrates Figure 15 reduces from high level and the time point applying extra are consistent with each other, but these time points are not consistent with each other all the time.
Control and drive system 110 determines that the application time of extra is to avoid forming sub-image on photoconductor drum, and applies extra during determined time ton.Even if light-emitting component is connected by extra, also on photoconductor drum, do not form sub-image.In other words, even if control and drive system 110 determines that light-emitting component sends the time that light also can not form sub-image on photoconductor drum, and extra is applied during determined time ton.
With reference to figure 7, because the grid of light-emitting component L1 to L256 is connected to each grid of transferring member T1 to T256, the operation of light-emitting component L1 to L256 can affect transferring member T1 to T256.Therefore, just change to low level time point from high level in the transfer printing signal Phi 1 and Φ 2 that are applied to transferring member T1 to T256 and apply to light-emitting component L1 to L256 the operation that extra can affect transferring member T1 to T256.When light-emitting component sends light, the grid potential of light-emitting component becomes 3.3V (Vcc).The grid potential being connected to the transferring member of light-emitting component also becomes 3.3V.The grid potential of transferring member is by sequence delivery to next transferring member, and the grid potential of next transferring member becomes about 1.8V.Light-emitting component helps the operation of transferring member when grid potential is passed to next transferring member.
The another kind of method helping the operation of transferring member makes the grid voltage of each transferring member than the height of the first transferring member.In other words, the voltage higher than the high level voltage of transfer printing signal is applied to the anode of transferring member, becomes VG2, VG3, VG4 ... and VG256>VG1.
With reference to Figure 15, when only applying data-signal, the unique data signal whether indication light element is switched on according to transfer printing signal Phi 1 and Φ 2/turns off can be applied to light-emitting component.Low level voltage is applied to data-signal, is connected by light-emitting component during time t1 or t2.The fluorescent lifetime of light-emitting component changes according to the length of time t1 or t2, and the size of the sub-image formed on photoconductor drum along with the fluorescent lifetime of light-emitting component elongated and become large.
When applying data-signal and extra, extra is applied to light-emitting component by the change according to transfer printing signal Phi 1 and Φ 2.Extra can be applied before or after applying data-signal.
Figure 16 is the sequential chart controlling the method for the operation of transferring member by applying extra.Figure 16 illustrates control and drive system 110 applies extra example when data-signal is turned off.
Because data-signal is turned off in figure 16, so data-signal maintains high level voltage.
Control and drive system 110 also can apply extra when data-signal is turned off.In other words, the time point that control and drive system 110 not only just can change to low level voltage from high level voltage in transfer printing signal Phi 1 and Φ 2 applies extra, and maintains low level time durations applying extra in transfer printing signal Phi 1 and Φ 2.
Maintain low level time durations in transfer printing signal Phi 1 and Φ 2 in figure 16 and apply extra further once, but also can apply extra at least twice.In addition, extra has rectangular pulse shape in figure 16, but extra also can apply by various shape, such as triangular pulse etc.
Figure 17 is the flow chart of the method for control light-emitting device array chip according to embodiment.
In operation 1710, control and drive system 110 receives print data.
In operation 1720, control and drive system 110 applies the transfer printing signal of operation transferring member array 126.First transfer printing signal Phi 1 of transfer printing signal designation operation odd number transferring member and the second transfer printing signal Phi 2 of operation even number transferring member.
In operation 1730, control and drive system 110 applies the data-signal of operating light-emitting element arrays 127, and just changes to from high level the extra that low level time point applies to make light-emitting component luminescence at transfer printing signal.In addition, control and drive system 110 also applies extra when data-signal is turned off at the time durations applying data-signal.
As mentioned above, one or more according in above-described embodiment, because the commencing signal input terminal of transferring member array is parallel-connected to the data signal input terminal of light-emitting device array, so the number of the wire-bonded in light-emitting device array module can be reduced.
According to the method controlling light-emitting device array chip, the time point that can export commencing signal by adjustment to each light-emitting device array chip separately controls each light-emitting device array chip.
According to the method controlling light-emitting device array chip, can compensate by separately controlling the registration error of each light-emitting device array chip to light-emitting device array chip.
According to the method controlling light-emitting device array chip, can by affecting the operation of transferring member to light-emitting component applying extra and data-signal.
According to the device of an embodiment can comprise processor, for store and executive program data memory, such as disk drive and so on permanent storage, for the communication port of external device communication and user interface (userinterface, the UI) equipment of such as touch panel, key and button and so on.The computer-readable code that can perform on a processor is can be used as or program command is stored on non-Transient calculation machine readable medium recording program performing by the method for software module or algorithm realization.The example of computer readable recording medium storing program for performing comprises magnetic storage medium (such as, read-only memory (read-onlymemory, ROM), random access storage device (random-accessmemory, RAM), floppy disk and hard disk) and optical recording media is (such as, compact disk-read-only memory (compactdisc-readonlymemory, CD-ROM) and digital versatile disc (digitalversatiledisc, DVD)).Computer readable recording medium storing program for performing also can be distributed in the computer system that is coupled by network, can be stored in a distributed fashion and perform to make computer-readable code.Computer readable recording medium storing program for performing can be read by computer, and can be stored in memory and be performed within a processor.
By functional block components and various process operation, embodiment can be described.Functional block can be realized by hardware and/or component software.Such as, one embodiment can adopt various integrated circuit (integratedcircuit, IC) assembly, such as memory component, treatment element, logic element and look-up table, it can perform various function under the control of one or more microprocessor or other control appliances.Element can be realized by software programming or software element, and is realized by the programming of such as C, C++, Java or assembler language and so on or script, and wherein various algorithm is realized by the combination of data structure, process, routine or other compile elements.Function aspects can be realized by the algorithm performed in one or more processor." mechanism ", " element ", " unit " and " configuration " are not limited to machinery and physical configuration, but can comprise software routines associative processor etc.
Specific implementation mode described herein is exemplary, and does not limit the scope of inventive concept.In accompanying drawing, illustrated connecting line and connecting elements represent that function between various element connects and/or physics or logic connect, and can use that various replacement or extra function connect, physical connection or logic connect.
In the context of specification, (especially in the context of claims) use to " " and " being somebody's turn to do " and similar denotion can be interpreted as both having covered singulative and also cover plural form.In addition, the record of the scope of value is separately referred to each independent value dropped within the scope of this herein, unless otherwise indicated herein, and each independent value is merged in this manual, just looks like separately to describe in this article equally.The operation of method described herein can perform by any order suitably, unless otherwise indicated herein or contradiction obvious with context.The scope of inventive concept is not limited to above-described operating sequence.Example provided herein or word (such as, " such as ") are for describing embodiment in detail, and scope is not subject to the restriction of these examples or word, except non-claimed is separately on the books.In addition, one ordinarily skilled in the art will readily appreciate that when not departing from the spirit and scope as the inventive concept of claims restriction, various amendment and combination can be made according to design situation and factor.
Should be appreciated that embodiment described herein should only take in descriptive sense, instead of in order to limit.Usually should be considered to can be used for other similar characteristics in other embodiments or aspect to the description of the feature in each embodiment or aspect.
Although one or more embodiment has been described with reference to the drawings, one of ordinary skill in the art will appreciate that when not departing from the spirit and scope as claims restriction, the various changes in form and details can have been carried out it.
Claims (14)
1. a light-emitting device array module, comprising:
Control and drive system, is configured to receive print data; And
Multiple light-emitting device array chip, is eachly configured to from described control and drive system Received signal strength,
Wherein, each of described multiple light-emitting device array chip is connected to described control and drive system by respective data wire, and
Described control and drive system controls the operating time point of each of described multiple light-emitting device array chip by the registration error adjustment commencing signal of each according to described multiple light-emitting device array chip and some input time of data-signal.
2. light-emitting device array module as claimed in claim 1, wherein, described control and drive system applies described commencing signal to each of described multiple light-emitting device array chip and data-signal compensates described registration error by the registration error of each according to described multiple light-emitting device array chip in time of delay.
3. light-emitting device array module as claimed in claim 2, wherein, described time of delay is the multiple in the cycle of each of the transfer printing signal applied in described multiple light-emitting device array chip.
4. light-emitting device array module as claimed in claim 1, wherein, described control and drive system applies the commencing signal of operation transferring member array by described data wire.
5. light-emitting device array module as claimed in claim 1, wherein
The each of described multiple light-emitting device array chip comprises transferring member array and light-emitting device array, and
The commencing signal input terminal of described transferring member array is parallel-connected to described data wire.
6. light-emitting device array module as claimed in claim 1, also comprises the memory of the information for storing the operating time point about described multiple light-emitting device array chip.
7. control a method for multiple light-emitting device array chip, the method comprises:
Receive print data;
By each applying commencing signal of data wire to described multiple light-emitting device array chip; And
By each applying data-signal of described data wire to described multiple light-emitting device array chip after applying described commencing signal,
Wherein, the applying of described commencing signal comprises and applies described commencing signal according to the registration error of each of described multiple light-emitting device array chip at the operating time point of each of described multiple light-emitting device array chip.
8. method as claimed in claim 7, wherein, the applying of described commencing signal comprises the registration error by each according to described multiple light-emitting device array chip, applies described commencing signal compensate described registration error in time of delay to each of described multiple light-emitting device array chip.
9. method as claimed in claim 8, wherein, described time of delay is the multiple in the cycle of each of the transfer printing signal applied in described multiple light-emitting device array chip.
10. method as claimed in claim 7, wherein, the voltage level of described commencing signal is identical with the high level voltage of described data-signal.
11. 1 kinds of methods controlling multiple light-emitting device array chips that image processing system comprises, the method comprises:
Receive print data;
Apply the transfer printing signal of operation transferring member array;
Apply the data-signal of operating light-emitting element arrays; And
Just change to from high level the extra that low level time point applies to make light-emitting component luminescence at described transfer printing signal.
12. methods as claimed in claim 11, wherein, the applying of described extra comprises determines that the application time of described extra is to avoid forming sub-image on photoconductor drum, and applies described extra at determined time durations.
The light-emitting device array module that 13. 1 kinds of image processing systems comprise, comprising:
Light-emitting device array chip, is configured to have light-emitting device array and transferring member array; And
Control and drive system, is configured to the transfer printing signal applying operation transferring member array by receiving print data, and applies the data-signal of operating light-emitting element arrays,
Wherein, described control and drive system just changes to from high level the extra that low level time point applies to make light-emitting component luminescence at described transfer printing signal.
14. light-emitting device array modules as claimed in claim 13, wherein, described control and drive system determines that the application time of described extra is to avoid forming sub-image on photoconductor drum, and applies described extra at determined time durations.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462017473P | 2014-06-26 | 2014-06-26 | |
| US62/017,473 | 2014-06-26 | ||
| KR1020140130330A KR20160001567A (en) | 2014-06-26 | 2014-09-29 | Light-emitting element array module and method for controlling Light-emitting element array chips |
| KR10-2014-0130330 | 2014-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105323909A true CN105323909A (en) | 2016-02-10 |
| CN105323909B CN105323909B (en) | 2019-03-29 |
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| CN201510362939.7A Expired - Fee Related CN105323909B (en) | 2014-06-26 | 2015-06-26 | The method of light-emitting device array module and control light-emitting device array chip |
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| CN (1) | CN105323909B (en) |
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| CN1320082A (en) * | 1999-08-30 | 2001-10-31 | 日本板硝子株式会社 | Self-scanning light-emitting device |
| US20030007063A1 (en) * | 2000-03-16 | 2003-01-09 | Seiji Ohno | Optical writing head and correction method for light spot row deviations |
| JP2003127462A (en) * | 2001-10-29 | 2003-05-08 | Nippon Sheet Glass Co Ltd | Method for correcting quantity of light of optical write head |
| US6710794B1 (en) * | 1999-08-31 | 2004-03-23 | Canon Kabushiki Kaisha | Light print head |
| US20080079025A1 (en) * | 2006-09-29 | 2008-04-03 | Fuji Xerox Co., Ltd. | Exposure device, exposure system, light-emitting element circuit board and image forming apparatus |
| CN102019766A (en) * | 2009-09-18 | 2011-04-20 | 富士施乐株式会社 | Light-emitting device, print head and image forming apparatus |
| CN104956267A (en) * | 2014-01-29 | 2015-09-30 | 三星电子株式会社 | Light-emitting element array module and method of controlling light-emitting element array chips |
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2014
- 2014-09-29 KR KR1020140130330A patent/KR20160001567A/en not_active Application Discontinuation
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2015
- 2015-06-26 CN CN201510362939.7A patent/CN105323909B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320082A (en) * | 1999-08-30 | 2001-10-31 | 日本板硝子株式会社 | Self-scanning light-emitting device |
| US6710794B1 (en) * | 1999-08-31 | 2004-03-23 | Canon Kabushiki Kaisha | Light print head |
| US20030007063A1 (en) * | 2000-03-16 | 2003-01-09 | Seiji Ohno | Optical writing head and correction method for light spot row deviations |
| JP2003127462A (en) * | 2001-10-29 | 2003-05-08 | Nippon Sheet Glass Co Ltd | Method for correcting quantity of light of optical write head |
| US20080079025A1 (en) * | 2006-09-29 | 2008-04-03 | Fuji Xerox Co., Ltd. | Exposure device, exposure system, light-emitting element circuit board and image forming apparatus |
| CN102019766A (en) * | 2009-09-18 | 2011-04-20 | 富士施乐株式会社 | Light-emitting device, print head and image forming apparatus |
| CN104956267A (en) * | 2014-01-29 | 2015-09-30 | 三星电子株式会社 | Light-emitting element array module and method of controlling light-emitting element array chips |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105323909B (en) | 2019-03-29 |
| KR20160001567A (en) | 2016-01-06 |
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