CN101797847B - Method for regulating drive current of photosensitive element of PR2E passbook printer - Google Patents
Method for regulating drive current of photosensitive element of PR2E passbook printer Download PDFInfo
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- CN101797847B CN101797847B CN2009103068560A CN200910306856A CN101797847B CN 101797847 B CN101797847 B CN 101797847B CN 2009103068560 A CN2009103068560 A CN 2009103068560A CN 200910306856 A CN200910306856 A CN 200910306856A CN 101797847 B CN101797847 B CN 101797847B
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Abstract
The invention discloses a method for regulating a drive current of a photosensitive element of a PR2E passbook printer. The method comprises the following steps of: acquiring output voltage of each range of drive current photosensitive element and comparing output voltage values corresponding to the adjacent drive currents to acquire the drive current of an inflection point; setting the drive current as a maximum range of current and recording the output voltage value of the photosensitive element in the maximum range of drive current; and comparing multiple relation between the output voltage of the inflection point and the output voltage in the maximum range of drive current, judging whether the inflection point is shifted leftwards or rightwards according to the multiple relation and accordingly regulating the drive current. The method has the advantages of adaptively regulating the drive current of the photosensitive element of the printer, making the printer keep relatively higher paper detection sensitivity and improving the printing efficiency of the printer when the paper detection sensitivity of the printer is reduced because of the change of the service environment of the printer.
Description
Technical field
The present invention relates to a kind of PR2E deposit book printers paper light activated element drive current method of adjustment.
Background technology
The PR2E deposit book printers are banking system printing device commonly used, and this PR2E deposit book printers are in the process of using, and after occurring sometimes inserting paper, printer detects the problem of directly moving back paper less than paper.Influence operative employee's efficient greatly.
Summary of the invention
In order to solve the above-mentioned technical matters that the PR2E deposit book printers exist, the invention provides a kind of PR2E deposit book printers paper light activated element drive current method of adjustment, the present invention can improve the sensitivity that PR2E deposit book printers paper detects greatly.
The technical scheme that the present invention solves the problems of the technologies described above may further comprise the steps:
1) gather the output voltage of each grade drive current light activated element, the output voltage values of adjacent driven electric current correspondence relatively, if V (i)＜and during 15/16V (i+1), i is current current drives shelves, writing down current drive current is keen current Iip;
2) putting drive current is keen current Iip, the flex point output voltage V ip of recording light photosensitive elements, if Vip＜7/8Vx, Vx is the maximum output voltage that writes down in the step 1), withdraws from; Otherwise put drive current is the maximum electric current, light activated element output voltage values Vmax during record maximum drive current;
3) as if Vmax＜7/8Vip, printer has paper, and putting drive current is keen current; Otherwise whether judge Vmax less than 50mv, less than 50mv, the expression paperboard;
4) if Vip＜15/16Vmax, and keen current is not 0, and the expression flex point moves to right, and the keen current shelves increase by 1 grade, and putting drive current is new keen current;
5) if Vip 〉=15/16Vmax, put drive current and be left side point electric current, gather the left point voltage of light activated element, if left point voltage greater than 15/16 times Vmax, then flex point has moved to left, and the keen current shelves are reduced 1 grade, and to put drive current be keen current; Otherwise putting drive current is former keen current.
Technique effect of the present invention is: when the present invention can change the paper detection sensitivity reduction that causes printer in the environment for use of printer, adjust the drive current of printer light activated element adaptively, make printer keep higher paper detection sensitivity, improve the printing effect of printer.
The present invention is further illustrated below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the PR2E photosensitive circuit performance plot among the present invention.
Fig. 2 is a process flow diagram of the present invention.
Embodiment
Referring to Fig. 1, Fig. 1 is a PR2E printer photosensitive circuit performance plot.Horizontal ordinate among the figure is a drive current, and ordinate is the A/D sampled value of output voltage after the opto-electronic conversion, and unit is mv.As table 1, drive current is divided into 16 grades from small to large, but because the value of wherein the 7th grade and the 8th grade, the 9th grade and the 10th grade is very approaching, so it is of no use to have removed the 7th grade and the 10th grade, so only used 14 grades now, and every grade of all corresponding output voltage of electric current.According to above curve, be easy to judge whether paper feed of printer.No paper voltage and have the gap between the paper voltage big is more judged whether paper feed of printer easily more, judges that promptly the adaptive capacity to environment of paper feed is strong more.
We can find principle by photosensitive circuit and performance plot, when being operated in the drive current of flex point correspondence, the output voltage difference maximum of paper and no paper are arranged.Therefore, before the normal use of PR2E printer, need find keen current, use during for the printer operate as normal by the operation of doing beche-de-mer without spike.
Flex point among Fig. 1 (IP): under the no paper situation, output saturation voltage and input current point.Just on the light sensitive characteristic curve, the point of slope maximum in the point of input current correspondence.Left side point (LP): the point of the current gear correspondence that the flex point left side is close.Vmax: the output voltage of the corresponding light activated element of maximum drive current.Keen current (Iip): the drive current of flex point correspondence.Left side point electric current (Ilp): the corresponding drive current of left side point.
Principle process of the present invention is as follows:
1. opening initialization.Give the keen current initialize.
2. ask flex point.Put each grade drive current, gather PR2E printer light activated element output voltage values respectively.The output voltage values that compares adjacent driven electric current correspondence.When satisfying its multiple magnitude relationship, writing down current drive current is keen current Iip, and corresponding point is a flex point.Record is judged has paper not have the interval of saltus step up and down of paper.And if knee voltage does not come in normal range, the lamp by guidance panel glimmers and reports an error.
3. not having paper judges.Putting drive current now is keen current Iip, notes flex point output voltage V ip, and whether relatively this magnitude of voltage and 2. the multiple magnitude relationship of the middle maximum output voltage values Vmax that calculates are judged now for paper is arranged with this.If paper is arranged, then algorithm withdraws from.If there is not paper, then putting drive current is the maximum electric current, upgrades maximum output voltage values Vmax.
4. whether compare the multiple magnitude relationship between Vmax and the Vip once more, judging has paper now.If paper is arranged, putting drive current is keen current, and algorithm withdraws from.If there is not paper, upgrading judgement according to Vmax has paper not have the interval of saltus step up and down of paper.
5. whether move to right.If Vmax is big more a lot of than Vip, and Iip is not 0, then taken place to change to the right, and promptly the electric current of right one grade of the Iip that calculates in 2. is new keen current Iip, and to put drive current be new Iip.
6. whether move to left.If Vmax is a lot of greatly unlike Vip, drive current then is set is left side point electric current, obtain left side point output voltage V lp.If Vlp is only a little bit smaller than Vmax, then taken place to change left, promptly 2. the electric current of the middle Iip the first from left shelves that calculate is new keen current Iip; Otherwise do not move to left.
Illustrate: wherein the 1. 2. the step operation be only when start, to do once, and 3. the go on foot 6. step operation, as long as under no paper situation, all can circulate judges whether to carry out self-adaptation and operates.
Concrete control procedure of the present invention is as follows: open after the printer (1), and at first the keen current of initialization optical fiber is 0, next puts drive current from big to small, gathers output voltage values.(2) if the output voltage values of i shelves less than the output voltage values of 15/16 times i+1 shelves, then finds flex point, promptly i shelves drive current is a keen current.(3) being provided with paper does not now have paper saltus step interval up and down, and based on the maximum output voltage value V_M that obtains above, wherein low interval value is (3/4V_M-10), and high interval value is (3/4V_M+10).Put the drive current keen current, if Vip less than 190mv and i＜5, then the beche-de-mer without spike value is on the low side, photosensor goes wrong, local lamp flicker is reported to the police; If Vip is less than 100mv and i＜10, then the beche-de-mer without spike value is low excessively, the too much or paperboard of possible dust, and flashing light is reported to the police.(4) putting drive current is keen current, gathers knee voltage Vip.Make that V_M is Vmax, if Vip less than 7/8Vmax, then expression has paper, withdraws from.Otherwise putting drive current is the maximum electric current, collects new Vmax.If Vmax less than 7/8Vip, has paper, putting drive current is keen current; Otherwise, whether judge Vmax less than 50 earlier, if less than the expression paperboard; Reset the saltus step interval, wherein low interval value is (3/4Vmax-10), and high interval is (3/4Vmax+10).(5) next, judge about whether flex point and moved.If Vip is less than 15/16 times Vmax, then flex point has moved to right, and Iip is greater than under 0 the situation, and the keen current shelves increase 1, obtain new keen current, and to put drive current be keen current.(6) otherwise, if the left side point electric current I lp that Vip more than or equal to 15/16 times Vmax, then gets earlier and puts drive current for left side point electric current, gather left point voltage.If left point voltage is greater than 15/16 times Vmax, then flex point has moved to left, and just the keen current shelves reduce 1, obtains new keen current, and to put drive current be keen current; (7) if left point voltage smaller or equal to 15/16 times Vmax, then flex point does not change, putting drive current is former keen current.
Table 1
| Current gear | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Current value (mA) | 0.011 | 0.448 | 1.45 | 3.5 | 5.7 | 8 | 9.5 | 9.6 |
| Current gear | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Current value (mA) | 11.8 | 12 | 13.5 | 15.9 | 18.2 | 20.6 | 22.1 | 24.5 |
Claims (1)
1. PR2E deposit book printers paper light activated element drive current method of adjustment may further comprise the steps:
1) gather the output voltage of each grade drive current light activated element, the output voltage values of adjacent driven electric current correspondence relatively, if V (i)＜and during 15/16V (i+1), i is current current drives shelves, writing down current drive current is keen current Iip;
2) putting drive current is keen current Iip, the flex point output voltage V ip of recording light photosensitive elements, if Vip＜7/8Vx, Vx is the maximum output voltage that writes down in the step 1), withdraws from; Otherwise put drive current is the maximum electric current, light activated element output voltage values Vmax during record maximum drive current;
3) as if Vmax＜7/8Vip, printer has paper, and putting drive current is keen current; Otherwise, do a judgement earlier, if Vmax less than 50mv, represents paperboard,, be left intact if more than or equal to 50mV;
4) if Vip＜15/16Vmax, and keen current is not 0, and the expression flex point moves to right, and the keen current shelves increase by 1 grade, and putting drive current is new keen current;
5) if Vip 〉=15/16Vmax, put drive current and be left side point electric current, gather the left point voltage of light activated element, if left point voltage greater than 15/16 times Vmax, then flex point has moved to left, and the keen current shelves are reduced 1 grade, and to put drive current be keen current; Otherwise putting drive current is former keen current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103068560A CN101797847B (en) | 2009-09-10 | 2009-09-10 | Method for regulating drive current of photosensitive element of PR2E passbook printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103068560A CN101797847B (en) | 2009-09-10 | 2009-09-10 | Method for regulating drive current of photosensitive element of PR2E passbook printer |
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| CN101797847A CN101797847A (en) | 2010-08-11 |
| CN101797847B true CN101797847B (en) | 2011-04-20 |
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| CN2009103068560A Active CN101797847B (en) | 2009-09-10 | 2009-09-10 | Method for regulating drive current of photosensitive element of PR2E passbook printer |
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| KR101826346B1 (en) * | 2016-03-25 | 2018-02-06 | 주식회사 포스뱅크 | Printer Jam detecting and recover methode |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054846A (en) * | 1990-08-17 | 1991-09-25 | 黄煜文 | Automatic currency examine, cash register circuit |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054846A (en) * | 1990-08-17 | 1991-09-25 | 黄煜文 | Automatic currency examine, cash register circuit |
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Effective date of registration: 20190812 Address after: 410100 East Changsha Road, Changsha economic and Technological Development Zone, Hunan, China, No. 5, No. three Co-patentee after: Hunan Great Wall Science and Technology Information Co.,Ltd. Patentee after: HUNAN GREATWALL INFORMATION FINANCIAL EQUIPMENT Co.,Ltd. Address before: 410100 East Changsha Road, Changsha economic and Technological Development Zone, Hunan, China, No. 5, No. three Co-patentee before: GREATWALL INFORMATION INDUSTRY Co.,Ltd. Patentee before: HUNAN GREATWALL INFORMATION FINANCIAL EQUIPMENT Co.,Ltd. |
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Address after: 410100 No. 5, three East Road, Changsha economic and Technological Development Zone, Hunan, Changsha Patentee after: Great Wall Information Co.,Ltd. Patentee after: Hunan Great Wall Science and Technology Information Co.,Ltd. Address before: 410100 No. 5, three East Road, Changsha economic and Technological Development Zone, Hunan, Changsha Patentee before: HUNAN GREATWALL INFORMATION FINANCIAL EQUIPMENT Co.,Ltd. Patentee before: Hunan Great Wall Science and Technology Information Co.,Ltd. |
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Effective date of registration: 20220701 Address after: 410100 No.5, east 3 Road, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee after: Great Wall Information Co.,Ltd. Address before: 410100 No. 5, three East Road, Changsha economic and Technological Development Zone, Hunan, Changsha Patentee before: Great Wall Information Co.,Ltd. Patentee before: Hunan Great Wall Technology Information Co., Ltd |