CN203592808U - Print control device of franking machine - Google Patents
Print control device of franking machine Download PDFInfo
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- CN203592808U CN203592808U CN201320784984.8U CN201320784984U CN203592808U CN 203592808 U CN203592808 U CN 203592808U CN 201320784984 U CN201320784984 U CN 201320784984U CN 203592808 U CN203592808 U CN 203592808U
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Abstract
Provided is a print control device of a franking machine. The print control device comprises a paper feeding wheel, a paper discharging wheel, a rotating type photoelectric encoder, a print head and a print controller; an output signal of the rotating type photoelectric encoder is input into the print controller; a print initial value is arranged in the print controller; the print controller controls the output of the print head based on an input signal of the encoder and the print initial value; two encoders are respectively installed on the paper feeding wheel and the paper discharging wheel; output signals of the encoders are input into the print controller; and a paper sensor is installed between the paper feeding wheel and the print head. The print control device is capable of precisely tracking print medium and using shorter print medium, so register and splicing errors are corrected.
Description
Technical field
The utility model relates to the print control unit of a kind of print control unit, particularly franking machine.
Background technology
Post envelope is printed the basic print system that adopts one way, envelope or label (can be attached on envelope as postage paying voucher, similar stamp) enter from one end of printer, after printing, exit from other one end again, printing type can be ink-jet or hot stamping mode, and this special equipment is called franking machine.Franking machine substitutes traditional stamp in the mode of directly printing, and reduces costs.More than one printhead can be installed to expand the height of printing in one way print system.
Rotary photoelectric encoder is the stroke inductor that along circumference, rotational angle is divided into multiple unit pulses, often turns over a unit pulse, just reflects the forward travel distance of feed roller on girth, namely paper send distance to.
Prior art is generally, at one of paper feeding wheel or paper output wheel, rotary photoelectric encoder is installed.In the time that encoder is arranged on paper feeding wheel, the paper afterbody of printing leaves after paper feeding wheel, and encoder cannot continue to follow the tracks of the variation of media location again, if at this moment print and also do not complete, accurate printing often can not be continued in the rear end of print area so; For this reason, need to use longer paper in the middle of reality, when making printhead prints, paper is still carried on paper feeding wheel, and this has just produced the back distance of longer printer page, and the length of back distance is at least greater than the distance of printhead to paper feeding wheel.In the time that encoder is arranged on paper output wheel, can only arrive after paper output wheel at paper, could start to print according to the paper position tracing into, this has just produced the front distance of printer page, and front is apart from being at least greater than the distance of printhead apart from paper output wheel.The mode that existing single encoded device control is printed, individual envelope or the label length of printing are longer, have caused the huge waste of printed material.
Simultaneously, there is certain thickness print media and enter or leave the feed roller moment that photoelectric encoder is installed, this encoder of taking turns and be arranged on wheel is impacted, encoder can not accurately reflect the change in location of print media on moving direction, can affect printing precision, produce chromatography stitching error.
Summary of the invention
The utility model will solve chromatography stitching error of the prior art, print tracking media location inaccuracy, use the problem of longer print media, provide the utility model a kind of franking machine print control unit for this reason, this franking machine print control unit structure arranges compactness, Method of printing is reasonable in design, can realize accurate tracking print media, use shorter print media, and realize without chromatography stitching error when more than one printhead is installed in system.
For solving the problem of chromatography stitching error, print tracking media location inaccuracy, the longer print media of use, the technical solution adopted in the utility model comprises paper feeding wheel, paper output wheel, rotary photoelectric encoder, printhead and print control unit, the output signal input print control unit of rotary photoelectric encoder, in print control unit, be provided with printing initial value, print control unit is according to input signal and the output of printing initial value control printhead of rotary photoelectric encoder; It is characterized in that rotary photoelectric encoder is two, be arranged on respectively on paper feeding wheel and paper output wheel, the output signal input print control unit of two rotary photoelectric encoders; A paper sensor is installed between paper feeding wheel and printhead.
In described print control unit, be provided with counter, reading code signal switching value, counter adopts the umber of pulse metering of rotary photoelectric encoder; Print media front end is by paper feeding wheel and while arriving paper sensor, and counter counts from zero, and counter first carries out increment counting according to the umber of pulse of paper feeding wheel rotary photoelectric encoder; When counter equals reading code signal switching value, counter is switched to the umber of pulse of paper output wheel rotary photoelectric encoder and carries out increment counting; Wherein reading code signal switching value is more than or equal to paper and arrives the numerical value of counter when paper output wheel, the numerical value of counter when clearly this switching value is less than paper and leaves paper feeding wheel.
While having two adjacent print at least, adjacent print distributes along print media direction of advance vertical interlaced, and described reading code signal switching value is set according to adjacent two the printhead noninterlace print areas in print area.
Described noninterlace print area is the region of the blank content of adjacent two printhead prints.
Described noninterlace print area is that in print area, adjacent print is printed respectively the region without the staggered content of vertical splicing.
Described noninterlace print area is region when one of them printhead prints of adjacent print, another printhead are not printed in print area.
Described noninterlace print area be in print area adjacent print perpendicular to printing direction of advance, having an area of the pattern at a distance of 5 millimeters of above blank blocks up and down.
Because the length of print media is greater than the distance of paper feeding wheel and paper output wheel all the time, no matter when, print media all at least contacts with one of them feed roller.The paper feeding distance and position signal of the rotary photoelectric encoder on the feed roller of even running that what print control unit read is, paper enters or departs from the signal that feed roller impacts and do not pass to print control unit as the position signalling of printing, so the print signal of the utility model collection always is stable paper feeding signal, has improved thus printing precision; Owing to adopting into and out of the switching of paper wheel coding, can accurately read the positional information of print media, first according to the code printing of paper feeding wheel, enter the suitable opportunity after paper output wheel at paper, be switched to the code printing according to paper output wheel, just can not produce longer page front distance and page back distance, allow to use shorter print media.
In one way print system, adopt the rear collaborative work of multiple printhead splicings, printhead is interspersed perpendicular to paper feed direction, between each printhead, has relative position deviation.Entering letter wheel encoder and going out letter wheel encoder is asynchronous working, separately with the change in location of pulse signal independent feedback print media, in the time that the signal of print control unit foundation is switched to paper output wheel encoder from paper feeding wheel encoder, may produce the feedback error of print media position, worst error is 1 pulse equivalency, and then causes printhead maximum to shift to an earlier date or lag behind 1 pulse equivalency printing.For high-precision one way franking machine printing type, the pulse error of switching signal will show as the stitching error on pattern, and the pattern edge that adjacent print is printed just there will be very significantly stitching error.
Such as a straight line vertical with paper direction of advance is printed respectively epimere 51 and hypomere 52 by two printheads, front printhead according to paper feeding wheel code printing the hypomere of straight line, paper advances, rectilinear movement will be carried out the printing of straight line epimere to a rear printhead, at this moment carry out signal switching, signal is switched to paper output wheel encoder from paper feeding wheel encoder, because feedback error, a rear printhead first produces in advance or lags behind and prints, in this case, rear printhead prints straight line epimere out may stagger in vertical direction with front printhead prints straight line hypomere out, the straight line printing upper, hypomere is not just on same ideal line, this has just produced obvious pattern splicing error, human eye can be told this pattern dislocation.Paper moves on, the content that front printhead is switched to after paper output wheel code printing arrives rear printhead, the position feedback error of forward and backward printhead is just synchronous, and front and back printhead lags behind simultaneously or in advance, the print What after this no longer shows stitching error.So stitching error is to occur in this time point that two printheads are switched to paper delivery end-of-encode from Formfeed encode to occur, reflecting from distance is exactly the fixed range of adjacent print between paper direction of advance, it is the alternate position spike of adjacent print, if the width of empty frame between the jet orifice of adjacent print in accompanying drawing 3 is exactly the alternate position spike of adjacent print, the content in this distance is likely because signal switches the stitching error that causes print What.
The position gap of adjacent print from, select composed pattern region that human eye differentiates to go out or without the region of composed pattern as noninterlace print area, comply with this region and carry out setting signal switching value, can avoid pattern table to reveal stitching error.
In the utility model, noninterlace print area can be: print white space, the white space that adjacent print is not printed; Adjacent print respectively along print media direction of advance without the staggered area of the pattern of vertical splicing, adjacent print is printed separately, and there is no the staggered situation of vertical splicing; Or one of them does not print adjacent print, the region of another printhead prints; Or adjacent print is perpendicular to printing direction of advance, and the difficult alignment distance of differentiating of the human eye of being separated by, such as there being the area of the pattern at 5 millimeters of intervals on vertical.
Accompanying drawing explanation
Fig. 1 is the utility model structure of installing encoders schematic diagram.
Fig. 2 is the pattern schematic diagram of the utility model straight line stitching error.
Fig. 3 is the schematic diagram that is interspersed of two printheads of the utility model.
Fig. 4 is the Zone switched schematic diagram of the print What of the utility model embodiment mono-.
Fig. 5 is the Zone switched schematic diagram of the print What of the utility model embodiment bis-.
Fig. 6 is the Zone switched schematic diagram of the print What of the utility model embodiment tri-.
Fig. 7 is the Zone switched schematic diagram of the print What of the utility model embodiment tetra-.
In figure, be labeled as: 1 paper feeding wheel, 2 paper output wheels, 3 rotary photoelectric encoders, 4 printheads, front printhead 41, rear printhead 42, paper sensor 5,51 epimere straight lines, 52 hypomere straight lines, 61 white spaces, block when the horizontal straight line of 62 single printhead prints, all blocks in the time printing the horizontal straight line consistent with paper feeding direction of 63 pairs of printheads, 64 adjacent print are at a distance of the epimere line segment of the noninterlace print area of 5 millimeters, and 65 adjacent print are at a distance of the hypomere line segment of the noninterlace print area of 5 millimeters.
The specific embodiment
Embodiment mono-
The print control unit of franking machine, comprises paper feeding wheel 1, paper output wheel 2, rotary photoelectric encoder 3, printhead 4 and print control unit, and print control unit is according to input signal and the output of printing initial value control printhead of rotary photoelectric encoder; Rotary photoelectric encoder is two, is arranged on respectively on paper feeding wheel and paper output wheel the output signal input print control unit of two rotary photoelectric encoders; A paper sensor 5 is installed between paper feeding wheel and printhead.
In print control unit, setting and printing initial value is 10000.
Reading code signal switching value is set according to the blank block 61 between the circular pattern in left side and the square frame pattern on right side, and in this example, setting switching value is 20000, the intermediate point of the corresponding white space of this value.
When reading code signal switches, paper has arrived at paper output wheel, from paper arrives paper sensor, then arrives paper output wheel to paper, and Formfeed encode device is being counted always, and in this example, reading code signal switching value is greater than the numerical value of Formfeed encode device accumulative total in this time period.Paper steadily enters paper output wheel, and controller just encodes to control the output of printhead according to the paper output wheel of steadily input.
In this example, two printheads all stop printing in switching cataloged procedure, have avoided chromatography splicing misprint.
Embodiment bis-
Different from embodiment mono-is, in the present embodiment, in view of paper transverse shifting, block 62 while having the horizontal straight line of single printhead prints in print area, by adjacent print, one of them prints the horizontal straight line being connected between left frame and right-hand frame in figure, another printhead is not printed, and according to this block, reading code signal switching value is set., can there is not the staggered error of pattern in the similar unit, printhead franking machine of this situation.
Embodiment tri-
Different from embodiment bis-is, the present embodiment is all being printed according to printing Zone switched interior pair of printhead, and region 63 is to be made up of upper and lower two groups of horizontal straight lines, two of upper ends straight line be one group by one of them printhead prints, two of lower ends straight line be one group by another one printhead prints, these two groups of horizontal straight lines do not have vertical interlocking in vertical and paper direction of advance.
Embodiment tetra-
Different from enforcement one is, the noninterlace region of this enforcement reading code signal switching value foundation is, on the line segment 64 and 65 of vertical and paper feed direction, article two, line segment is printed by adjacent print respectively, perpendicular to 5 millimeters of two line segment spacing of paper direction of advance, carry out the switching of reading code signal in this region, even because position feedback error has occurred, whether the upper lower line segment that human eye also can not differentiated 5 millimeters of intervals misplaces.
Claims (6)
1. the print control unit of franking machine, comprise paper feeding wheel, paper output wheel, rotary photoelectric encoder, printhead and print control unit, the output signal input print control unit of rotary photoelectric encoder, in print control unit, be provided with printing initial value, print control unit is according to input signal and the output of printing initial value control printhead of rotary photoelectric encoder; It is characterized in that rotary photoelectric encoder is two, be arranged on respectively on paper feeding wheel and paper output wheel, the output signal input print control unit of two rotary photoelectric encoders; A paper sensor is installed between paper feeding wheel and printhead;
In described print control unit, be provided with counter, reading code signal switching value, counter adopts the umber of pulse metering of rotary photoelectric encoder; Print media front end is by paper feeding wheel and while arriving paper sensor, and counter counts from zero, and counter first carries out increment counting according to the umber of pulse of paper feeding wheel rotary photoelectric encoder; When counter equals reading code signal switching value, counter is switched to the umber of pulse of paper output wheel rotary photoelectric encoder and carries out increment counting; The numerical value of counter when wherein reading code signal switching value is more than or equal to paper arrival paper output wheel.
2. the print control unit of franking machine as claimed in claim 1, it is characterized in that having at least two adjacent print, adjacent print is interspersed perpendicular to the direction of advance of print media, and described reading code signal switching value is set according to adjacent two the printhead noninterlace print areas in print area.
3. the print control unit of franking machine as claimed in claim 2, is characterized in that described noninterlace print area is the region of the blank content of adjacent two printhead prints.
4. the print control unit of franking machine as claimed in claim 2, is characterized in that described noninterlace print area is that in print area, adjacent print is printed respectively the region without the staggered content of vertical splicing.
5. the print control unit of franking machine as claimed in claim 2, is characterized in that described noninterlace print area is region when one of them printhead prints of adjacent print, another printhead are not printed in print area.
6. the print control unit of franking machine as claimed in claim 2, it is characterized in that described noninterlace print area be in print area adjacent print perpendicular to printing direction of advance, having an area of the pattern at a distance of 5 millimeters of above blank blocks up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784984.8U CN203592808U (en) | 2013-12-04 | 2013-12-04 | Print control device of franking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320784984.8U CN203592808U (en) | 2013-12-04 | 2013-12-04 | Print control device of franking machine |
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| CN203592808U true CN203592808U (en) | 2014-05-14 |
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| CN201320784984.8U Expired - Fee Related CN203592808U (en) | 2013-12-04 | 2013-12-04 | Print control device of franking machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753974A (en) * | 2013-12-04 | 2014-04-30 | 浙江工业大学 | Printing control device for franking machine |
| CN107839348A (en) * | 2017-10-31 | 2018-03-27 | 合肥汉闻数字印刷设备有限公司 | A kind of envelope printing machine |
| CN109397893A (en) * | 2018-12-13 | 2019-03-01 | 广州市贝云科技有限公司 | Jet printing appts and its jet printing method |
| CN111361303A (en) * | 2020-04-08 | 2020-07-03 | 重庆电子工程职业学院 | Working method of automatic code spraying and detecting system for biological DNA card bag |
-
2013
- 2013-12-04 CN CN201320784984.8U patent/CN203592808U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753974A (en) * | 2013-12-04 | 2014-04-30 | 浙江工业大学 | Printing control device for franking machine |
| CN107839348A (en) * | 2017-10-31 | 2018-03-27 | 合肥汉闻数字印刷设备有限公司 | A kind of envelope printing machine |
| CN109397893A (en) * | 2018-12-13 | 2019-03-01 | 广州市贝云科技有限公司 | Jet printing appts and its jet printing method |
| CN109397893B (en) * | 2018-12-13 | 2024-02-13 | 广州市贝云科技有限公司 | Jet printing device and jet printing method thereof |
| CN111361303A (en) * | 2020-04-08 | 2020-07-03 | 重庆电子工程职业学院 | Working method of automatic code spraying and detecting system for biological DNA card bag |
| CN111361303B (en) * | 2020-04-08 | 2021-03-02 | 重庆电子工程职业学院 | Working method of automatic code spraying and detecting system for biological DNA card bag |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20191204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |