CN106094464A - Print Video Controller and control method, image forming apparatus - Google Patents
Print Video Controller and control method, image forming apparatus Download PDFInfo
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- CN106094464A CN106094464A CN201610688262.0A CN201610688262A CN106094464A CN 106094464 A CN106094464 A CN 106094464A CN 201610688262 A CN201610688262 A CN 201610688262A CN 106094464 A CN106094464 A CN 106094464A
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- print data
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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
- G03G15/55—Self-diagnostics; Malfunction or lifetime display
- G03G15/553—Monitoring or warning means for exhaustion or lifetime end of consumables, e.g. indication of insufficient copy sheet quantity for a job
- G03G15/556—Monitoring or warning means for exhaustion or lifetime end of consumables, e.g. indication of insufficient copy sheet quantity for a job for toner consumption, e.g. pixel counting, toner coverage detection or toner density measurement
Abstract
The invention discloses a kind of printing Video Controller and control method, image forming apparatus, wherein print Video Controller to include: the first data processing unit, for the print data obtained from external device (ED) is carried out bits switch process, the print data after being processed；Output control unit is connected with described first data processing unit, for being modulated the print data after described process, obtains video print data；Clock generating unit, for producing video clock signal and the video sub-clock signal synchronizing described video print data；Print data amount computing unit, for described video print data being sampled according to described video clock signal and described video sub-clock signal, obtain the print data amount in one page video print data, to calculate carbon dust consumption according to described print data amount, it is thus possible to carry out the calculating of carbon dust consumption according to print data amount effective in one page video print data, improve the degree of accuracy of carbon dust consumption calculating.
Description
Technical field
The present invention relates to imaging device technical field, particularly relate to a kind of printing Video Controller and control method, figure
As forming equipment.
Background technology
At present, image forming apparatus and a computer are connected by communication interface, transmit user by communication interface and produce
Raw prints data to this image forming apparatus.After this image forming apparatus receives print data, by print control panel
Processing print data, such as halftone process, decompression etc., and the print data after processing is converted into video and beats
Printing evidence, in order to print engine exports video print data in print paper.
In prior art, it is provided that a kind of carbon dust consumption calculations device calculates the required carbon dust amount consumed of print data.
As it is shown in figure 1, this carbon dust consumption calculations device 10 includes: useful signal generation unit 11, computing unit 12 and a storage
Unit 13.Useful signal generation unit 11 receives video print data and a video clock signal VCLK produces one effectively
Signal, this video clock signal VCLK is for synchronizing the print data received from computer.When this video print data and video
Clock signal VCLK is produced by print control panel, and this computing unit 12 prints the effective of the actual generation of a paper for calculating
The pulse number of signal and calculating print the quantity of effective print data of a paper actual demand, and memory element 13 stores
The numerical value of computing unit 12 output.When an image forming apparatus takes above-mentioned carbon dust consumption calculations device 10, print one
During pixel, useful signal generation unit 11 keeps " 1 " value a video clock signal week according to when video print data
Produce a useful signal time in phase, then the pulse number of the useful signal in one page print data is counted by computing unit 12
Number, the final numerical computations according to memory element 13 goes out the carbon dust amount consumed.
But, in above-mentioned carbon dust consumption calculations device 10, useful signal generation unit 11 uses and door, to regarding
Frequently the bit of print data carries out join operation.The most above-mentioned carbon dust consumption calculations device 10 is only suitable for by two values of distribution
" 0 " or " 1 " represents image forming apparatus during print resolution to a pixel.But the print data of reality is in order to improve
Print resolution, then the amount of bits of print data is from 16 bits to 2 bit change, therefore for image that resolution requirement is high
Formation equipment, above-mentioned carbon dust consumption calculations device 10 is difficult to accurately calculate the print data amount being actually needed output, therefore cannot
Accurately calculate the consumption of carbon dust.
Summary of the invention
The present invention provides a kind of and prints Video Controller and control method, image forming apparatus, in order to solve existing skill
Art is difficult to accurately calculate in image forming apparatus the problem of the print data amount being actually needed output, improves and calculate carbon dust consumption
The degree of accuracy of amount.
The first aspect of the invention is to provide a kind of printing Video Controller, including:
First data processing unit, for the print data obtained from external device (ED) is carried out bits switch process, obtains
Print data after process；
Output control unit is connected with described first data processing unit, for carrying out the print data after described process
Modulation, obtains video print data；
Clock generating unit, for producing the video clock signal synchronizing described video print data and video sub-clock letter
Number；
Print data amount computing unit, for according to described video clock signal and described video sub-clock signal to described
Video print data is sampled, and obtains the print data amount in one page video print data, in order to according to described print data
Amount calculates carbon dust consumption.
Further, nN times that frequency is described video clock signal of described video sub-clock signal, described N is described
The amount of bits of each pixel in print data after process, n is positive integer.
Further, described print data amount computing unit includes:
Sampling unit, depositor, the first enumerator, the second enumerator and effective enumerator；
Described sampling unit is connected with described clock generating unit and described depositor, for believing according to described video clock
Number and described video sub-clock signal described video print data is sampled, obtain in each video clock signal cycle
When described video sub-clock signal rising edge or trailing edge being detected, described video print data is positioned at the level number of times of high level
And store to described depositor；
Described first enumerator is connected with described depositor, is used for adding up level number of times described in one page video print data
Equal to first number during the first preset value；
Described second enumerator is connected with described depositor, and for second number of statistics, described second number is that one page regards
Frequently level number of times described in print data is less than the summation of level number of times during described first preset value；
Described effective enumerator is connected with described first enumerator and described second enumerator, for according to described first time
Print data amount in number and described second number statistics one page video print data.
Further, the computing formula of described print data amount is,
N3=N1+N2/nN+C；
Wherein, the print data amount during N3 is one page video print data；N1 is described first number；N2 is described second
Number of times；NN is described first preset value, and described N is the amount of bits of each pixel in the print data after described process, and n is just
Integer；C N2 divided by nN remainder more than or equal to nN/2 time be 1, N2 divided by nN remainder less than nN/2 time be 0.
Further, in the print data after described process, the amount of bits of pixel is 2 bits, 4 bits, 8 bits, 16 ratios
Spy or 32 bits.
The second aspect of the invention is to provide a kind of image forming apparatus, including: the video that prints as above controls
Device and print engine；
Described print engine is connected with described printing Video Controller, for provide according to described printing Video Controller
Video print data carries out printout.
The third aspect of the invention is to provide a kind of control method printing Video Controller, including:
Obtain the print data that external device (ED) sends, described print data is carried out bits switch process, after being processed
Print data；
Print data after described process is modulated, obtains video print data；
Produce video clock signal and the video sub-clock signal for synchronizing described video print data；
According to described video clock signal and described video sub-clock signal, described video print data is sampled, obtain
Take the print data amount in one page video print data, in order to calculate carbon dust consumption according to described print data amount.
Further, nN times that frequency is described video clock signal of described video sub-clock signal, described N is described
The amount of bits of each pixel in print data after process, n is positive integer.
Further, described according to described video clock signal and described video sub-clock signal, described video is printed number
According to sampling, obtain the print data amount in one page video print data, in order to calculate carbon dust according to described print data amount
Consumption, including:
According to described video clock signal and described video sub-clock signal, described video print data is sampled, obtain
Take in each video clock signal cycle the described video when described video sub-clock signal rising edge or trailing edge being detected to beat
Printing is according to the level number of times being positioned at high level；
Described in statistics one page video print data, level number of times is equal to first number during the first preset value；
Adding up second number, described second number is that level number of times described in one page video print data is less than described first
The summation of level number of times during preset value；
According to the print data amount in described first number and described second number statistics one page video print data.
Further, the computing formula of described print data amount is,
N3=N1+N2/nN+C；
Wherein, the print data amount during N3 is one page video print data；N1 is described first number；N2 is described second
Number of times；NN is described first preset value, and described N is the amount of bits of each pixel in the print data after described process, and n is just
Integer；C N2 divided by nN remainder more than or equal to nN/2 time be 1, N2 divided by nN remainder less than nN/2 time be 0.
Further, in the print data after described process, the amount of bits of pixel is 2 bits, 4 bits, 8 bits, 16 ratios
Spy or 32 bits.
The printing Video Controller that the present invention provides includes: the first data processing unit, for obtaining from external device (ED)
Print data carry out bits switch process, the print data after being processed；At output control unit and described first data
Reason unit connects, and for being modulated the print data after described process, obtains video print data；Clock generating unit,
For producing the video clock signal and video sub-clock signal synchronizing described video print data；Print data amount calculates single
Unit, for sampling described video print data according to described video clock signal and described video sub-clock signal, obtains
Take the print data amount in one page video print data, in order to calculate carbon dust consumption according to described print data amount, it is thus possible to
The enough calculating carrying out carbon dust consumption according to print data amount effective in one page video print data, improves carbon dust and consumes gauge
The degree of accuracy calculated.
Accompanying drawing explanation
Fig. 1 is the structural representation of carbon dust consumption calculations device in prior art；
The structural representation printing Video Controller that Fig. 2 provides for one embodiment of the invention；
Fig. 3 is the waveform signal of video print data, video clock signal, video sub-clock signal and page sync signal
Figure；
Fig. 4 is the detailed waveform signal of the video print data in Fig. 3, video clock signal and video sub-clock signal
Figure；
The structural representation printing Video Controller that Fig. 5 provides for another embodiment of the present invention；
Fig. 6 prints the structural representation of print data amount computing unit in Video Controller for what the embodiment of the present invention provided
Figure；
The structural representation of the image forming apparatus that Fig. 7 provides for the embodiment of the present invention；
The schematic flow sheet of the control method printing Video Controller that Fig. 8 provides for the embodiment of the present invention.
Reference:
Carbon dust consumption calculations device-10；Useful signal generation unit-11；Computing unit-12；Memory element-13；First
Data processing unit-200；Output control unit-201；Clock generating unit-202；Print data amount computing unit-203；Slow
Memory cell-204；Counting memory element-205；Sampling unit-1001；Depositor-1002；First enumerator-1003；Second meter
Number device-1004；Effectively enumerator-1005；Print Video Controller-71；Print engine-72.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
Embodiment one
The structural representation printing Video Controller that Fig. 2 provides for the embodiment of the present invention, as in figure 2 it is shown, the present embodiment
One is provided to print Video Controller, including: the first data processing unit 200, for the printing number obtained from external device (ED)
According to carrying out bits switch process, the print data after being processed；
Output control unit 201 is connected with described first data processing unit 200, for the printing number after described process
According to being modulated, obtain video print data；
Clock generating unit 202, for producing video clock signal and the video period of the day from 11 p.m. to 1 a.m synchronizing described video print data
Clock signal；
Print data amount computing unit 203, for according to described video clock signal and described video sub-clock signal pair
Described video print data is sampled, and obtains the print data amount in one page video print data, in order to according to described printing
Data volume calculates carbon dust consumption.
Wherein, print Video Controller and be specifically as follows the images such as printer, photocopier, facsimile machine, all-in-one multifunctional machine
Printing Video Controller or there is the controller of similar functions in formation equipment.
Wherein, the frequency of described video sub-clock signal can be nN times of described video clock signal, and described N is described
The amount of bits of each pixel in print data after process, n is positive integer.
From the print data that external device (ED) obtains, each pixel (pixel) has different amount of bits, such as, and 16 bits, 8
Bit, 4 bits or 2 bits.And each pixel has identical amount of bits in the print data after processing, such as 2 bits, 4 ratios
Spy, 8 bits, 16 bits or 32 compare top grade.Such as, if the bit value of certain pixel of the print data obtained from external device (ED)
It is 1100, can be converted into the print data after the process of 16 bits, such as 1111111100000000, described N is equal to 16.
In print data after process, the amount of bits of pixel is the highest, then the print resolution of image forming apparatus is the highest, printout
Print image have more rich detail rendition.Here it is to make receive to have different amount of bits that bits switch processes
The print data of pixel be converted into the print data after the process of the pixel with same bits quantity, in order to adapt to output control
The serial output mode of unit 201 processed.
Concrete, output control unit 201 can be according to video clock signal VCLK, video sub-clock signal sub-clk
It is modulated exporting video print data VD to the print data after processing with page sync signal PSYNC, video print data, regards
Frequently the waveform diagram of clock signal, video sub-clock signal and page sync signal is as shown in Figure 3.Page sync signal represents printing
The start of Page signal of one page video print data, when a trailing edge arrives, represents the starting point of a type face.Video
The cycle of clock signal is nN/mono-in the cycle of video clock signal.As shown in Figure 4, wherein n=1, Fig. 4 are in Fig. 3
The detailed waveform diagram of video print data, video clock signal and video sub-clock signal, to be expressed as
In the video clock signal cycle that the pixel of 1111111100000000 is corresponding, keep high level in front half period,
Second half of the cycle keeps low level, and namely the cycle at front 8 video sub-clock signal keeps high level, at rear 8 videos
The cycle of sub-clock signal keeps low level.It is different from pixel in background technology and only has " 0 " " 1 " in a video clock signal
Two kinds of level changes, the present embodiment processes along with bits switch, the video that a pixel is corresponding in a video clock signal
Print data has more than 2 less than 2nPlant level change, it is possible to print text edge-smoothing when making print data export, reduce edge
The phenomenon of sawtooth occurs.NN/mono-in the cycle that the cycle is video clock signal of video sub-clock signal here, N is institute
Stating the amount of bits of each pixel in the print data after process, therefore the cycle of video sub-clock signal can be less than or equal to one
Individual pixel is the cycle of level change, the printing Video Controller that therefore the present embodiment provides within a video clock signal cycle
Use and according to described video clock signal and described video sub-clock signal, described video print data is sampled, it is possible to be right
Video print data in one video clock signal is sampled with video sub-clock signal, it is possible to obtain a video clock
Simple only one video clock signal sample video print data of foundation in effective print data amount, with background technology in signal
Comparing, the printing Video Controller that the present embodiment provides can be accurately according to print data effective in one page video print data
Amount carries out the calculating of carbon dust consumption, improves the degree of accuracy of carbon dust consumption calculating.
It addition, also need to illustrate, external device (ED) can be the devices such as computer, mobile phone, PAD, for basis
The operation of user produces print data.First data processing unit 200 can be connected with external device (ED) by communication interface.First
Before data processing unit 200 carries out bits switch process to print data, can first print data be carried out halftone process and
Decompression etc..
Also needing to illustrate, printing Video Controller can also include: buffer unit 204 and counting memory element
205, as shown in Figure 5.Buffer unit 204 is connected with the first data processing unit 200 and external device (ED), fills from outside for caching
Put the print data of acquisition, and be supplied to the first data processing unit 200.Counting memory element 205 calculates with print data amount
Unit 203 connects, for storing the print data amount in one page video print data, in order to carry out the calculating of carbon dust consumption.
It addition, video print data can be carried out by output control unit 201 by the print engine of image forming apparatus
Printout.
After getting the print data amount in one page video print data, can be according to the ambient parameter printed and setting
The engine structure parameter such as print control voltage calculate the carbon dust amount of actual consumption, the therefore carbon dust of one page video print data
Consumption can determine according to equation below:
P=aN3+b
Wherein, P is actual toner consumption；A is times multiplying factor that print engine structural parameters determine；B is print engine
The accumu-late parameter that structural parameters determine；N3 is the print data amount of one page video print data.Coefficient a and coefficient b is by image shape
The structural parameters of the print engine of forming apparatus determine, and are drawn by test.Above-mentioned coefficient a and coefficient b can prestore
In counting memory element 205.
The printing Video Controller that the present embodiment provides, including: the first data processing unit, for obtaining from external device (ED)
The print data taken carries out bits switch process, the print data after being processed；Output control unit and described first data
Processing unit connects, and for being modulated the print data after described process, obtains video print data；Clock produces single
Unit, for producing video clock signal and the video sub-clock signal synchronizing described video print data；Print data amount calculates
Unit, for described video print data being sampled according to described video clock signal and described video sub-clock signal,
Obtain the print data amount in one page video print data, in order to calculate carbon dust consumption according to described print data amount, thus
The calculating of carbon dust consumption can be carried out according to print data amount effective in one page video print data, improve carbon dust consumption
The degree of accuracy calculated.
Embodiment two
On the basis of above-described embodiment, the present embodiment describes concrete function and the knot of print data amount computing unit in detail
Structure.As shown in Figure 6, Fig. 6 prints the knot of print data amount computing unit 203 in Video Controller for what the embodiment of the present invention provided
Structure schematic diagram, print data amount computing unit 203 includes:
Sampling unit 1001, depositor 1002, the first enumerator 1003, the second enumerator 1004 and effective enumerator
1005；
Described sampling unit 1001 is connected with described clock generating unit 202 and described depositor 1002, for according to institute
State video clock signal, described video print data is sampled by described video sub-clock signal, obtains each video clock
In signal period, when described video sub-clock signal rising edge or trailing edge being detected, described video print data is positioned at high electricity
Flat level number of times also stores to described depositor 1002；
Described first enumerator 1003 is connected with described depositor 1002, is used for adding up described in one page video print data
Level number of times is equal to first number during the first preset value；
Described second enumerator 1004 is connected with described depositor 1002, for second number of statistics, described second number
For level number of times described in one page video print data less than the summation of level number of times during described first preset value；
Described effective enumerator 1005 is connected, for root with described first enumerator 1003 and described second enumerator 1004
According to the print data amount in described first number and described second number statistics one page video print data.
Wherein, in one embodiment, depositor 1002 can arrange variables A, and the first enumerator 1003 can be arranged
Value added N1, the second enumerator 1004 can arrange value added N2, and effective enumerator 1005 can arrange value added N3.Print data gauge
Calculate the sampling unit 1001 of unit 203 at the arrival of a rising edge based on video clock signal and next rising edge
Before arrival, for sampling clock, video print data is carried out level sampling with video sub-clock signal, specifically detect one
When the rising edge of individual video sub-clock signal or trailing edge, video print data is carried out level sampling, if level is high, then
The variables A making depositor 1002 adds up 1, when the rising edge of next video clock signal arrives, if in depositor 1002
The variables A of storage is nN, then it represents that in the complete video clock signal cycle, video print data is maintained at high level, then
The value added N1 allowing the first enumerator 1003 adds up 1, and the variables A of depositor 1002 resets；If when next video clock signal
Rising edge when arriving, in depositor 1002, the variables A of storage is less than nN, then it represents that a complete video clock signal cycle
Interior video print data only part is maintained at high level, then allow the value of variables A of depositor 1002 send the second enumerator to
The value added N2 of 1004, the variables A of depositor 1002 resets, then when waiting next video clock signal rising edge arrival, if one
In the video clock signal cycle, the variables A of depositor 1002 becomes equal to nN, then allow the value added N1 of the first enumerator 1003 add up
1, if variables A is less than nN, then allow the second interior value added N2 preserved of enumerator 1004 add the variables A of this depositor 1002,
Give value added N2 by this summing value, repeat above-mentioned calculating until one page video print data has been calculated.Effectively enumerator
The value added of value added and the second enumerator 1004 of 1005 pairs of the first enumerators 1003 is calculated value added N3 i.e. one page video
Effective print data amount in print data.
Concrete, the computing formula of print data amount can be,
N3=N1+N2/nN+C；
Wherein, the print data amount during N3 is one page video print data；N1 is described first number；N2 is described second
Number of times；NN is described first preset value, and N is the amount of bits of each pixel in the print data after described process；C N2 divided by
The remainder of nN more than or equal to nN/2 time be 1, N2 divided by nN remainder less than nN/2 time be 0.
In another embodiment, depositor 1002 can arrange variables A, and the first enumerator 1003 can arrange value added
N1, the second enumerator 1004 can arrange variable B and value added N2 ', and effective enumerator 1005 can arrange value added N3.Print data
The sampling unit 1001 of amount computing unit 203 rises at arrival and the next one of a rising edge based on video clock signal
Before the arrival on edge, for sampling clock, video print data is carried out level sampling with video sub-clock signal, specifically detect
Video print data is carried out level sampling, if level is during to rising edge or the trailing edge of a video sub-clock signal
Height, then make the variables A of depositor 1002 add up 1, when the rising edge of next video clock signal arrives, if depositor
In 1002, the variables A of storage is nN, then it represents that in the complete video clock signal cycle, video print data is maintained at height
Level, then allow the value added N1 of the first enumerator 1003 add up 1, and the variables A of depositor 1002 resets；If when next video
When the rising edge of clock signal arrives, in depositor 1002, the variables A of storage is less than nN, then it represents that a complete video clock letter
In number cycle, video print data only part is maintained at high level, then allow the value of variables A of depositor 1002 send second to
The variable B of enumerator 1004, the variables A of depositor 1002 resets, then when waiting next video clock signal rising edge arrival, if
In one video clock signal cycle, the variables A of depositor 1002 becomes equal to nN, then allow the value added N1 of the first enumerator 1003
Cumulative 1, if variables A is less than nN, then allow the second interior variable B preserved of enumerator 1004 plus the variable of this depositor 1002
A, gives variable B by this summing value, if this variations per hour B more than nN, then allows the value added N2 ' cumulative 1 of the second enumerator 1004, will become
The difference of amount B Yu nN gives variable B, repeats above-mentioned calculating until having calculated one page video print data.Effectively counting
The value added summation of the first enumerator 1003 and the second enumerator 1004 is obtained in one page video print data by device 1005
Effectively print data amount N3.
Concrete, the computing formula of print data amount can be,
N3=N1+N2 '+C；
Wherein, the print data amount during N3 is one page video print data；N1 is described first number；N2 ' is described
Two numbers and the business of nN；NN is described first preset value, and N is the bit number of each pixel in the print data after described process
Amount；C is 1 when variable B is more than or equal to nN/2, is 0 when variable B is less than N/2.
In addition, it is necessary to illustrate is, it is also possible to setting a sample variation, sample variation is initialized as 0, enters every time
After line level has been sampled, sample variation adds 1；Before carrying out level sampling, it is judged that whether sample variation is equal to nN every time, if etc.
In nN, then complete the sampling in a video clock signal cycle, then reset sample variation；If being not equal to nN, do not complete
The sampling in one video clock signal cycle.
It addition, also need to illustrate, effective enumerator 1005 is connected with counting memory element 205, for by one
Print data amount storage in page video print data is to counting memory element 205, in order to carry out the calculating of carbon dust consumption.
Above described embodiment describes print data amount computing unit cycle (i.e. one the video clock letter a pixel
Number cycle) level of video print data adopted for sample frequency by interior sampling unit with the frequency of video sub-clock signal
Sample, depositor draws the effective print data amount in the cycle of a pixel, the first enumerator, the second enumerator and effectively count
Device and then calculate the print data amount of one page video print data, it is every that the present embodiment can accurately calculate in print data
Effective print data amount of the video print data that one pixel is corresponding, therefore can measure printing one page video accurately and print
Actual toner consumption needed for data (i.e. one page print data).
Embodiment three
The present embodiment provides a kind of image forming apparatus, including: the printing video that as above any embodiment is provided controls
Device and print engine；
Print engine is connected with printing Video Controller, for according to printing the video print data that Video Controller provides
Carry out printout.
The structure printing Video Controller in the present embodiment is same as the previously described embodiments with function, does not repeats them here.
Specifically, as it is shown in fig. 7, the structural representation of image forming apparatus that Fig. 7 provides for the embodiment of the present invention, image
Formation equipment includes: print Video Controller 71 and print engine 72；Wherein, page sync signal is produced defeated by print engine 72
Go out, represent the initial signal of one page video print data, then print engine 72 can receive the video printing Video Controller 71
Print data carries out printout, then print data amount computing unit 203 triggers sampling unit when receiving page sync signal
1001 work.The image forming apparatus that inventive embodiments provides can be beaten according to one page video according to print data amount computing unit
In printing evidence, effective print data amount carries out the calculating of carbon dust consumption, improves the degree of accuracy of carbon dust consumption calculating.Implement
Example four
The schematic flow sheet of the control method printing Video Controller that Fig. 8 provides for the embodiment of the present invention, such as Fig. 8 institute
Showing, the present embodiment provides a kind of control method printing Video Controller, including:
Step 801, obtains the print data that external device (ED) sends, described print data is carried out bits switch process,
Print data after process.
Step 802, is modulated the print data after described process, obtains video print data.
Step 803, produces video clock signal and the video sub-clock signal for synchronizing described video print data.
Step 804, enters described video print data according to described video clock signal and described video sub-clock signal
Row sampling, obtains the print data amount in one page video print data, in order to calculate carbon dust consumption according to described print data amount
Amount.
The executive agent of the control method printing Video Controller that the present invention provides is the printing in embodiment illustrated in fig. 2
Video Controller.Wherein, print Video Controller and be specifically as follows the figures such as printer, photocopier, facsimile machine, all-in-one multifunctional machine
As printing Video Controller or there is the controller of similar functions in formation equipment.
Wherein, nN times that frequency is described video clock signal of described video sub-clock signal, described N is described process
After print data in the amount of bits of each pixel, n is positive integer.
From the print data that external device (ED) obtains, each pixel has different amount of bits, such as, 16 bits, 8 bits, 4
Bit or 2 bits.And each pixel has identical amount of bits in the print data after processing, such as 2 bits, 4 bits, 8 ratios
Special, 16 bits or 32 compare top grade.In print data after process, the amount of bits of pixel is the highest, then the beating of image forming apparatus
Print resolution is the highest, and the print image of printout has more rich detail rendition.
Step 804 prints Video Controller according to described video clock signal and described video sub-clock signal to described
Video print data is sampled, and obtains the print data amount in one page video print data, in order to according to described print data
Amount calculates the process of carbon dust consumption and specifically may include that according to described video clock signal and described video sub-clock signal pair
Described video print data is sampled, and described video sub-clock signal detected in obtaining each video clock signal cycle
When rising edge or trailing edge, described video print data is positioned at the level number of times of high level；Institute in statistics one page video print data
State level number of times equal to first number during the first preset value；Adding up second number, described second number is that one page video prints
Level number of times described in data is less than the summation of level number of times during described first preset value；According to described first number and described
Print data amount in second number statistics one page video print data.
Wherein, in one embodiment, the computing formula of print data amount can be,
N3=N1+N2/nN+C；
Wherein, the print data amount during N3 is one page video print data；N1 is described first number；N2 is described second
Number of times；NN is described first preset value, and N is the amount of bits of each pixel in the print data after described process；C N2 divided by
The remainder of nN more than or equal to nN/2 time be 1, N2 divided by nN remainder less than nN/2 time be 0.
In another embodiment, the computing formula of print data amount can be,
N3=N1+N2 '+C；
Wherein, the print data amount during N3 is one page video print data；It is first number described in N1；N2 ' is described
Two numbers and the business of nN；NN is described first preset value, and N is the bit number of each pixel in the print data after described process
Amount；C is 1 when variable B is more than or equal to N/2, is 0 when variable B is less than N/2.
After getting the print data amount in one page video print data, can be according to the ambient parameter printed and setting
The engine structure parameter such as print control voltage calculate the carbon dust amount of actual consumption, the therefore carbon in one page video print data
Powder consumption can determine according to equation below:
P=aN3+b
Wherein, P is actual toner consumption；A is times multiplying factor that print engine structural parameters determine；B is print engine
The accumu-late parameter that structural parameters determine；N3 is the print data amount in one page video print data.
The control method printing Video Controller that the present embodiment provides, including: obtain the printing number that external device (ED) sends
According to, described print data is carried out bits switch process, the print data after being processed；To the print data after described process
It is modulated, obtains video print data；Produce the video clock signal for synchronizing described video print data and video
Clock signal；According to described video clock signal and described video sub-clock signal, described video print data is sampled,
Obtain the print data amount in one page video print data, in order to calculate carbon dust consumption according to described print data amount, thus
The calculating of carbon dust consumption can be carried out according to print data amount effective in one page video print data, improve carbon dust consumption
The degree of accuracy calculated.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent；
And these amendment or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (11)
1. one kind prints Video Controller, it is characterised in that including:
First data processing unit, for the print data obtained from external device (ED) is carried out bits switch process, is processed
After print data；
Output control unit is connected with described first data processing unit, for adjusting the print data after described process
System, obtains video print data；
Clock generating unit, for producing video clock signal and the video sub-clock signal synchronizing described video print data；
Print data amount computing unit, for according to described video clock signal and described video sub-clock signal to described video
Print data is sampled, and obtains the print data amount in one page video print data, in order to according to described print data gauge
Calculate carbon dust consumption.
Printing Video Controller the most according to claim 1, it is characterised in that the frequency of described video sub-clock signal is
NN times of described video clock signal, described N is the amount of bits of each pixel in the print data after described process, and n is just
Integer.
Printing Video Controller the most according to claim 1 and 2, it is characterised in that described print data amount computing unit
Including:
Sampling unit, depositor, the first enumerator, the second enumerator and effective enumerator；
Described sampling unit is connected with described clock generating unit and described depositor, for according to described video clock signal and
Described video print data is sampled by described video sub-clock signal, is detecting in obtaining each video clock signal cycle
It is positioned at the level number of times of high level to described video print data when described video sub-clock signal rising edge or trailing edge and deposits
Storage is to described depositor；
Described first enumerator is connected with described depositor, is used for adding up level number of times described in one page video print data and is equal to
First number during the first preset value；
Described second enumerator is connected with described depositor, and for second number of statistics, described second number is that one page video is beaten
Described in printing evidence, level number of times is less than the summation of level number of times during described first preset value；
Described effective enumerator is connected with described first enumerator and described second enumerator, for according to described first number and
Print data amount in described second number statistics one page video print data.
Printing Video Controller the most according to claim 3, it is characterised in that the computing formula of described print data amount
For,
N3=N1+N2/nN+C；
Wherein, the print data amount during N3 is one page video print data；N1 is described first number；N2 is described second time
Number；NN is described first preset value, and described N is the amount of bits of each pixel in the print data after described process, and n is the most whole
Number；C N2 divided by nN remainder more than or equal to nN/2 time be 1, N2 divided by nN remainder less than nN/2 time be 0.
Printing Video Controller the most according to claim 1, it is characterised in that pixel in the print data after described process
Amount of bits be 2 bits, 4 bits, 8 bits, 16 bits or 32 bits.
6. an image forming apparatus, it is characterised in that including: the printing video as described in any one of claim 1-5 controls
Device and print engine；
Described print engine is connected with described printing Video Controller, for the video provided according to described printing Video Controller
Print data carries out printout.
7. the control method printing Video Controller, it is characterised in that including:
Obtain the print data that external device (ED) sends, described print data is carried out bits switch process, beating after being processed
Printing evidence；
Print data after described process is modulated, obtains video print data；
Produce video clock signal and the video sub-clock signal for synchronizing described video print data；
According to described video clock signal and described video sub-clock signal, described video print data is sampled, obtain one
Print data amount in page video print data, in order to calculate carbon dust consumption according to described print data amount.
The control method of printing Video Controller the most according to claim 7, it is characterised in that described video sub-clock is believed
Number nN times that frequency is described video clock signal, described N is the bit of each pixel in the print data after described process
Quantity, n is positive integer.
9. according to the control method printing Video Controller described in claim 7 or 8, it is characterised in that described in described foundation
Described video print data is sampled by video clock signal and described video sub-clock signal, obtains one page video and prints number
Print data amount according to, in order to calculate carbon dust consumption according to described print data amount, including:
According to described video clock signal and described video sub-clock signal, described video print data is sampled, obtain every
In the individual video clock signal cycle, when described video sub-clock signal rising edge or trailing edge being detected, described video prints number
According to the level number of times being positioned at high level；
Described in statistics one page video print data, level number of times is equal to first number during the first preset value；
Add up second number, when described second number is level number of times described in one page video print data less than the first preset value
The summation of level number of times；
According to the print data amount in described first number and described second number statistics one page video print data.
The control method of printing Video Controller the most according to claim 9, it is characterised in that described print data amount
Computing formula be,
N3=N1+N2/nN+C；
Wherein, the print data amount during N3 is one page video print data；N1 is described first number；N2 is described second time
Number；NN is described first preset value, and described N is the amount of bits of each pixel in the print data after described process, and n is the most whole
Number；C N2 divided by nN remainder more than or equal to nN/2 time be 1, N2 divided by nN remainder less than nN/2 time be 0.
The control method of 11. printing Video Controllers according to claim 7, it is characterised in that beating after described process
In printing evidence, the amount of bits of pixel is 2 bits, 4 bits, 8 bits, 16 bits or 32 bits.
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| US20070166059A1 (en) * | 2004-09-30 | 2007-07-19 | Seiko Corporation | Image forming apparatus, toner counter and method of calculating toner consumption amount |
| CN101276175A (en) * | 2007-03-29 | 2008-10-01 | 株式会社理光 | Image forming apparatus and image forming method |
| US20090041483A1 (en) * | 2007-08-08 | 2009-02-12 | Hideo Tanaka | Image forming apparatus and method of image formation |
| CN103092042A (en) * | 2011-09-16 | 2013-05-08 | 株式会社理光 | Toner consumption caculator, image forming apparatus, and toner consumption calculation method |
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| CN1504909A (en) * | 2002-12-04 | 2004-06-16 | ������������ʽ���� | Device management method |
| US20070166059A1 (en) * | 2004-09-30 | 2007-07-19 | Seiko Corporation | Image forming apparatus, toner counter and method of calculating toner consumption amount |
| CN101276175A (en) * | 2007-03-29 | 2008-10-01 | 株式会社理光 | Image forming apparatus and image forming method |
| US20090041483A1 (en) * | 2007-08-08 | 2009-02-12 | Hideo Tanaka | Image forming apparatus and method of image formation |
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