CN100460219C - Method and apparatus for improving printing rate of printer - Google Patents
Method and apparatus for improving printing rate of printer Download PDFInfo
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- CN100460219C CN100460219C CNB2003101138114A CN200310113811A CN100460219C CN 100460219 C CN100460219 C CN 100460219C CN B2003101138114 A CNB2003101138114 A CN B2003101138114A CN 200310113811 A CN200310113811 A CN 200310113811A CN 100460219 C CN100460219 C CN 100460219C
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Abstract
A method and device for increasing the print speed of printer is disclosed. Said method includes such steps as driving a print head to move in the first direction relative to the medium, printing data in the first print area, and moving the medium in a predefined direction relative to the print head while moving the print head in the second direction reverse to the first direction to close the second print area.
Description
Technical field
The invention provides a kind of method and apparatus that drives printer, particularly a kind of method and apparatus that improves printer operating speed.
Background technology
For utilizing printhead (print head) to print for the printing equipment of operation, this printing equipment (for example printer or facsimile machine) is installed on this printhead on one carrier (carrier), and uses a motor and drive this carrier and move back and forth (reciprocate) data are printed on the medium (medium).Generally speaking, this print head applications ink-jetting style, dot matrix mode or thermal transfer mode are in this medium (a for example paper) print data, yet, because this carrier only can move in a horizontal direction, therefore when carrier drives this printhead, this printhead also only can print in its moving range, so this printing equipment must be provided with that another motor drives that this medium vertically moves this printhead can be successfully with data integrity print on this medium.See also Fig. 1 to Fig. 3, Fig. 1 to Fig. 3 is the driving schematic diagram of conventional printing equipment 10.Have a transverse axis (shaft) 11 to be used for carrying a printhead 12 on the printing equipment 10, wherein printhead 12 can be in moving back and forth on the transverse axis 11 with print data on a medium 14.In Fig. 1, medium 14 remains static at the beginning the time with printhead 12, and learn the pixel position of need printing according to print data on medium 14, one printing zone (swath) 16 and print operation, quicken to advance so printhead 12 just can begin along direction A towards print area 16.Yet, after printhead 12 enters print area 16, because printhead 12 need start from print data on the print area 16, therefore worsen because of the acceleration action of printhead 12 for fear of print quality, so it is known as industry, this moment, printhead 12 meetings be crossed print area 16 with a fixed speed along direction A, and carried out the operation that data are printed simultaneously.
When printhead 12 leaves print area 16, as shown in Figure 2, this moment, printhead 12 was finished the printing of corresponding print area 16, so printhead 12 is just reduced speed now up to static by original fixed speed, in addition, after printhead 12 leaves print area 16, medium 14 begins to leave printhead 12 accessible scopes so that finished the print area 16 of data printing mobile along direction B (angle that direction B is corresponding one 90 ° with direction A) immediately, that is simultaneously next pending print area 18 is moved in the printhead 12 accessible scopes.If printhead 12 has reached inactive state, and medium 14 still moves along direction B, represents that then print area 18 does not fully move in the printhead 12 accessible scopes as yet, so printhead 12 can continue to keep static.
As shown in Figure 3, when print area 18 fully moves in the printhead 12 accessible scopes, and medium 14 is owing to no longer moving when remaining static, and static printhead 12 just begins along direction A ' towards print area 18 and quickens to advance originally.Note that the rightabout of direction A ' for direction A.Similarly, after printhead 12 enters print area 18, printhead 12 just comes in to print operation before the constant speed ground, and when printhead 12 leaves print area 18, because printhead 12 has been finished the printing of corresponding print area 18, so printhead 12 is just reduced speed now till static by present fixed speed.In addition, the length of print area 16,18 is decided according to print data, and in other words, printhead 12 decides begin position and the end position of opening that begins to print operation on medium 14 according to print data.
As mentioned above, finish the data of print area 16 when printhead 12 and print, and when leaving print area 16, conventional printing equipment just can begin to drive medium 14 and move along direction B, in other words, medium 14 enters a moderating process and can begin to move when not static as yet in printhead 12.Yet, if printhead 12 is static, but medium 14 is not also finished the paper feed operation of moving next print area 18, after printhead 12 meetings this moment waited for that the paper feed operation of corresponding print area 18 is finished, conventional printing equipment just can drive printhead 12 and advance to carry out follow-up printing towards print area 18.So for conventional printing equipment, the time that the operation of the wait paper feed of above-mentioned printhead 12 is finished can be caused the increase of whole time-write interval, therefore further reduces the printing effect of conventional printing equipment.
Summary of the invention
Therefore main purpose of the present invention is to provide a kind of method and apparatus that improves printer operating speed, to address the above problem.
According to the present invention, it discloses a kind of driving printing equipment and goes up the method for printing one first print data and one second print data in a medium (medium), this printing equipment includes a printhead (printhead), include one first print area (first swath) and one second print area (second swath) on this medium, this method includes: (a) this printhead moves with respect to this medium along a first direction, and this printhead prints on this first print area with this first print data; And (b) after this printhead prints on this first print area with this first print data, this medium moves with respect to this printhead along a predetermined direction, and this printhead is along this second print area of second direction convergence that is in reverse to this first direction simultaneously.
The present invention discloses a kind of method that drives printing equipment in addition, this printing equipment includes a printhead (prin thead), this method includes (a) and controls this printhead and move to first print area (first swath) on the medium (medium) along a first direction, and control this printhead according to a dozen printings according to (print data) this print data is printed on this first print area, (b) when this printhead when this first direction leaves this first print area, driving this medium moves along a predetermined direction, calculating this medium moves so that this printhead can use second print area (second swath) adjacent to this first print area to print the required very first time of this print data along this predetermined direction, and calculate this printhead and leave this first print area to entering the second required time of this second print area along a second direction that is in reverse to this first direction, and (c) relatively should the very first time and this second time control this printhead and begin the sequential (timing) of advancing along this second direction towards this second print area.
The present invention provides a kind of printing equipment in addition, it includes a printhead (print head), first print area (first swath) that is used on a medium (medium) is printed one first print data and one second print data respectively with second print area (secondswath), an and control circuit, be electrically connected on this printhead, being used for controlling this printhead moves so that this first print data is printed on this first print area with respect to this medium along a first direction, and after this printhead prints on this first print area with this first print data, control this medium and move with respect to this printhead, and control this printhead simultaneously along this second print area of second direction convergence that is in reverse to this first direction along a predetermined direction.
The present invention provides a kind of printing equipment in addition, it includes a printhead (print head), be used for printing this print data according to (print data) along first print area (first swath) of a first direction on a medium (medium) according to a dozen printings, an and control circuit, be electrically connected on this printhead, when being used for leaving this first print area in this printhead along this first direction, controlling this medium moves along a predetermined direction, calculate this medium and move so that this printhead can use second print area (second swath) adjacent to this first print area to print the required very first time of this print data and this printhead along this predetermined direction and leave this first print area to entering the second required time of this second print area along a second direction that is in reverse to this first direction, and relatively should the very first time and this second time control this printhead and begin the sequential (timing) of advancing along this second direction towards this second print area.
The present invention improves the method for print speed and prints in the paper feed operation in zone in carrying out corresponding one, the print area that drives during static printhead moves towards this originally advances, that is above-mentioned paper feed operate between deceleration period after this printhead is finished the printing of present print area with the printing of carrying out next print area before accelerating period in finish, therefore can reduce printhead leave finish printing print area to the spent operating time of next print area to be printed, also can reach the purpose that improves print speed.
Description of drawings
Fig. 1 to Fig. 3 is the driving schematic diagram of conventional printing equipment.
Fig. 4 is the function block schematic diagram of printing equipment of the present invention.
Fig. 5 is first kind of operational flowchart of printing equipment shown in Figure 4.
Fig. 6 is second kind of operational flowchart of printing equipment shown in Figure 4.
The reference numeral explanation
10,20 printing equipments, 11 transverse axis
12 printheads, 14,34 media
16,18 print areas, 22 control circuits
24a, 24b storage device 26a, 26b motor
28 printheads, 30 print datas, 32 firmwares
The specific embodiment
See also Fig. 4, Fig. 4 is the function block schematic diagram of printing equipment 20 of the present invention.Printing equipment 20 includes a control circuit (controller) 22, two storage device 24a, 24b, two motors (motor) 26a, 26b, and a printhead (printhead) 28.Control circuit 22 is used for controlling the overall operation of printing equipment 20 (a for example ink-jet printer).Storage device 24a is used for storage print data 30, so control circuit 22 can read storage device 24a and extracts print data 30, so that print data 30 is printed on the medium 34, storage device 24b then is used for storing firmware (firmware) 32, therefore control circuit 22 can read storage device 24b and extracts firmware 32, and carries out the operation that firmware 32 pairing source codes come control data to print.When medium 34 (a for example paper) when being installed on printing equipment 20, motor 26a just is used for control medium 34 moving in vertical direction, that is motor 26a is used for driving paper feed operation (paper feed), and in addition, another motor 26b then is used for controlling printhead 28 moving in horizontal direction.After control circuit 22 extracts print data 30, control circuit 22 learns that according to print data 30 position of required print pixel point decides the print area on the medium 34, that is control circuit 22 outputs control signals to printhead 28 according to print data 30 and drives printhead 28 print data 30 is printed on print area on the medium 34.
See also Fig. 5, Fig. 5 is first kind of operational flowchart of printing equipment 20 shown in Figure 4.The printing of the print data 30 that printing equipment 20 printing storage device 24a are noted down is described below, after a user starts a printing operation (step 100), the control circuit 22 of printing equipment 20 just CD-ROM drive motor 26a is written into a medium 34 so that print data 30 is printed on it (step 102).When medium 34 successfully was loaded in the printing equipment 20, control circuit 22 beginning CD-ROM drive motor 26b drove printheads 28 and quicken one first print area (print area 16 for example shown in Figure 1) advance (step 104) on the medium 34.Simultaneously, control circuit 22 can judge whether printhead 28 has arrived this first print area and finished accelerated procedure (step 106).If printhead 28 is this print area of no show still, then whether control circuit 22 accelerated procedure that can detect printhead 28 is constantly finished, otherwise control circuit 22 can come constant speed ground to drive printhead 28 to print the printing (step 108) of data 30 on this first print area according to print data 30, that is when having accelerated to a second speed by accelerated procedure by one first speed when printhead 28 arrives these first print areas, control circuit 22 can advance with this second speed constant speed ground to order about printhead 28 by control motor 26b.
Then, when printhead 28 left this first print area, control circuit 22 can judge immediately whether the printing of print data 30 has finished (step 110).If all the elements of print data 30 fully print on the medium 34, then control circuit 22 meeting CD-ROM drive motor 26b are to reduce the speed (step 112) till it is static of printhead 28, also even printhead 28 advances to print on medium 34 with one first speed constant speed ground, when printhead 28 was carried out a deceleration program, control circuit 22 can be decelerated to a second speed to order about printhead 28 by this first speed by control motor 26b.Then, after printhead 28 leaves this first print area and remains static, just CD-ROM drive motor 26a is to eject (eject) medium 34 (steps 114) for control circuit 22, and last user just can take out the medium 34 of printing the content that print data 30 is arranged and the printing (step 116) that successfully finishes print data 30.On the contrary, if the full content of print data 30 does not fully print on the medium 34 as yet, therefore printhead 28 needs to utilize the printing that continues print data 30 adjacent to second print area (print area 18 for example shown in Figure 1) of this first print area, so when printhead 28 leaves this first print area, 22 meeting CD-ROM drive motor 26b are static up to it with the speed that reduces printhead 28 for control circuit, the same time, control circuit 22 also can start paper feed operation to move this second print area to printhead 28 accessible scopes (step 118) by CD-ROM drive motor 26a.Then, whether control circuit 22 can detect printhead 28 and remain static (step 120), if printhead 28 is not static as yet, then control circuit 22 can detect the motion state of printhead 28 constantly; On the contrary, when printhead 28 is static, just can the reverse moving direction (step 122) of printhead 28 of control circuit 22, for instance, if control circuit 22 original control printheads 28 flatly move from left to right to print operation, then when step 122 is carried out, 22 of control circuits can be controlled printhead 28 and flatly move from right to left and carry out follow-up printing.
Then, control circuit 22 quickens towards this second print area advance (step 124) in the static rear drive printheads 28 of printhead 28 immediately.At this moment, control circuit 22 can judge whether paper feed operation that should second print area is finished (step 126), if this second print area has moved in the printhead 28 accessible scopes, and medium 34 has remained static, and then control circuit 22 can execution in step 106 judge whether printhead 28 has arrived this second print area and finished accelerated procedure.On the contrary, if this second print area does not move in the printhead 28 accessible scopes as yet, that is motor 26a still continues during drive medium 34 moves, then control circuit 22 can detect printhead 28 immediately and whether arrived this second print area and finished accelerated procedure (step 128), if printhead 28 this second print area of no show still, then control circuit 22 judges then just whether paper feed operation that should second print area is finished; On the contrary, if printhead 28 has arrived this second print area and has finished accelerated procedure, owing at present paper feed operation that should second print area is not finished as yet, so this second print area does not fully enter printhead 28 accessible scopes yet, that is this first print area fully do not leave printhead 28 accessible scopes yet, carries out follow-up printing so control circuit 22 just can't continue to drive printhead 28 according to print data 30.At this moment, the moving direction of control circuit 22 meeting counter-rotating printheads 28 is so that printhead 28 leaves second print area in still moving at present, and control motor 26d orders about printhead 28 its speed of reduction up to static (step 130).
The purpose of step 130 is to order about printhead 28 and re-executes once accelerated procedure towards this second print area convergence, and therefore after execution in step 130, control circuit 22 can be judged that printhead 28 is whether static and finish deceleration program (step 120).After printhead 28 is static, step 122,124 just can re-execute, if printhead 28 finishes accelerated procedure, and paper feed operation that should second print area still do not finished as yet, then control circuit 22 can order about printhead 28 and carry out once accelerated procedure towards this second print area convergence again again.As from the foregoing, after paper feed operation that should second print area is finished, just do not need repeatedly to carry out the accelerated procedure of printhead 28 after control circuit 22 execution in step 126, control circuit 22 just can carry out follow-up printing in this second print area according to print data 30 driving printheads 28 then again.
See also Fig. 6, Fig. 6 is second kind of operational flowchart of printing equipment 20 shown in Figure 4.The printing of the print data 30 that printing equipment 20 printing storage device 24a are noted down is described below, print operation back (step 200) when a user starts one, the control circuit 22 of printing equipment 20 just CD-ROM drive motor 26a is written into a medium 34 to be used for print data 30 printings on it (step 202).When medium 34 successfully was loaded in the printing equipment 20, control circuit 22 beginning CD-ROM drive motor 26b drove printheads 28 and quicken one first print area (print area 16 for example shown in Figure 1) advance (step 204) on the medium 34.Simultaneously, control circuit 22 can judge whether printhead 28 has arrived this first print area and finished accelerated procedure (step 206), if printhead 28 is this print area of no show still, then whether control circuit 22 accelerated procedure that can detect printhead 28 is constantly finished, otherwise control circuit 22 can come constant speed ground to drive printhead 28 to print the printing (step 208) of data 30 on this first print area according to print data 30.
Then, when printhead 28 leaves this first print area, control circuit 22 can judge whether the printing of print data 30 has finished (step 210), if the full content of print data 30 fully prints on the medium 34, then control circuit 22 can CD-ROM drive motor 26b with the speed that reduces printhead 28 up to its static (step 212).Then, after printhead 28 leaves this first print area and remains static, just CD-ROM drive motor 26a is with Eject Media 34 (step 214) for control circuit 22, and last user just can take out and print the whole printing (step 216) that the medium 34 of print data 30 is arranged and successfully finish print data 30.On the contrary, if the full content of print data 30 does not fully print on the medium 34 as yet, therefore printhead 28 needs to utilize the printing that continues print data 30 adjacent to second print area (print area 18 for example shown in Figure 1) of this first print area, so when printhead 28 leaves this first print area, 22 meeting CD-ROM drive motor 26b are static up to it with the speed that reduces printhead 28 for control circuit, the same time, control circuit 22 also can start paper feed operation to move this second print area to printhead 28 accessible scopes (step 218) by CD-ROM drive motor 26a.
Then, whether control circuit 22 can detect printhead 28 and remain static (step 220), if printhead 28 is not static as yet, then control circuit 22 can detect the motion state of printhead 28 constantly; On the contrary, when printhead 28 is static, control circuit 22 can calculate that printhead 28 arrives the required time of this second print area via known deceleration program and accelerated procedure and this second print area fully enters the printhead required time of 28 accessible scopes according to the driving force of motor 26a, 26b, adjusts printhead 28 and in fact arrives the spent time (step 222) of this second print area so that judge whether to control 28 static scheduled times of printhead.For instance, the motor 26a of present embodiment, 26b is stepper motor (stepping motor), therefore just can calculate and drive that printhead 28 moves a displacement required time and drive medium 34 moves a displacement required time via its stepping angle (stepping angle), so, if printhead 28 arrives the required time of these second print areas and finishes required time of paper feed operation that should second print area more than or equal to medium 34, then represent paper feed operation meeting that should second print area is finished before printhead 28 arrives these second print areas, so control circuit 22 just need not postpone the sequential (timing) that (delay) printhead 28 starts accelerated procedure, therefore when printhead 28 is static, control circuit 22 is the moving direction (step 224) of counter-rotating printheads 28 earlier, and then execution in step 204 starts the accelerated procedure of printhead 28 along adjusted moving direction immediately.For instance, if flatly slowing down to move to from left to right, control circuit 22 original control printheads 28 enter inactive state, then after step 224,204 was carried out, 22 of control circuits can be controlled printhead 28 immediately and flatly quicken to move from right to left to carry out follow-up printing.On the contrary, if printhead 28 arrives the required time of these second print areas and finishes required time of paper feed operation that should second print area less than medium 34, then represent paper feed operation meeting that should second print area is finished after printhead 28 arrives these second print areas, so control circuit 22 just needs the sequential of deferred printing 28 a startup accelerated procedure, so that controlling the paper feed operation of this second print area in fact can finish before printhead 28 arrives this second print area, therefore when printhead 28 was static, control circuit 22 can be kept inactive state to reach the purpose (step 226) that increases printhead 28 these second print area required times of arrival by control printheads 28 in a scheduled time.Then, when printhead 28 is static reach this scheduled time after, just can the reverse moving direction (step 224) of printhead 28 of control circuit 22, and execution in step 204 starts the accelerated procedure of printhead 28 along adjusted moving direction.
Routine techniques is compared, the present invention improves the method for print speed and prints in the paper feed operation in zone in carrying out corresponding one, the print area that drives during static printhead moves towards this originally advances, that is above-mentioned paper feed operate between deceleration period after this printhead is finished the printing of present print area with the printing of carrying out next print area before accelerating period in finish, therefore can reduce printhead leave finish printing print area to arriving the spent operating time of next print area to be printed, institute is so that can reach the purpose of raising print speed.In addition; the method that the present invention improves print speed is used a protection mechanism in addition and is avoided printhead execution printing before the paper feed operation is finished; the operation of discovery paper feed was not finished as yet when also even printhead entered print area to be printed; then printhead can turn around and continue to be decelerated to static; and then quicken to advance towards print area to be printed again, so improving the method for print speed, the present invention can guarantee print quality via protection mechanism.In addition, the present invention improves the method for print speed also can calculate the sequential that paper feed is operated and the time of printhead move operation decides printhead to advance towards print area acceleration to be printed in advance, therefore via the time of adjusting the printhead move operation so that the paper feed operation can before printhead arrives this print area to be printed, finish, since above-mentioned paper feed operate between deceleration period after this printhead is finished the printing of present print area with the printing of carrying out next print area before accelerating period in finish, therefore can reduce printhead leave finish printing print area to arriving the spent operating time of next print area to be printed, also can similarly reach the purpose that the present invention improves print speed.
The above only is preferred embodiment of the present invention, and all equivalences of carrying out according to claim of the present invention change and revise, and all should belong to covering scope of the present invention.
Claims (9)
1. one kind drives printing equipment is printed one first print data and one second print data on a medium method, and this printing equipment includes a printhead, includes one first print area and one second print area on this medium, and this method includes:
(a) this printhead moves with respect to this medium along a first direction, and this printhead prints on this first print area with this first print data;
(b) after this printhead printed on this first print area with this first print data, this medium moved with respect to this printhead along a predetermined direction, and this printhead is along this second print area of second direction convergence that is in reverse to this first direction simultaneously; And
(c) when this medium is still mobile, this printhead can rest on outside this second print area; When this medium was static, this printhead just can move in this second print area.
2. the method for claim 1 wherein has an angle between this predetermined direction and this first direction.
3. the method for claim 1, it also includes:
(b ') when this printhead when this first direction moves and leaves this first print area, begin to drive this second print area and move according to this predetermined direction.
4. method as claimed in claim 3, wherein printhead can be decelerated to a second speed by one first speed in step (b ').
5. the method for claim 1, wherein this printhead keeps a fixed speed to move in step (a), to print this first print data.
6. the method for claim 1, wherein printhead can accelerate to a second speed by one first speed in step (b).
7. the method for claim 1, in step (b), if this medium is still moving when printhead arrives this second print area, then printhead leaves this second print area along first direction.
8. the method for claim 1, wherein this first print area size is by " required print pixel point " determining positions in this first print data.
9. printing equipment, it includes
One printhead, first print area and second print area that are used on a medium are printed one first print data and one second print data respectively; And
One control circuit, be electrically connected on this printhead, being used for controlling this printhead moves so that this first print data is printed on this first print area with respect to this medium along a first direction, and after this printhead prints on this first print area with this first print data, controlling this medium moves with respect to this printhead along a predetermined direction, and control this printhead simultaneously along this second print area of second direction convergence that is in reverse to this first direction, and, when this medium is still mobile, controls this printhead and can rest on outside this second print area; When this medium is static, controls this printhead and just can move in this second print area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101138114A CN100460219C (en) | 2003-11-04 | 2003-11-04 | Method and apparatus for improving printing rate of printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101138114A CN100460219C (en) | 2003-11-04 | 2003-11-04 | Method and apparatus for improving printing rate of printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1613657A CN1613657A (en) | 2005-05-11 |
| CN100460219C true CN100460219C (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101138114A Expired - Fee Related CN100460219C (en) | 2003-11-04 | 2003-11-04 | Method and apparatus for improving printing rate of printer |
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| CN (1) | CN100460219C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773210A (en) * | 2018-06-27 | 2018-11-09 | 阜阳市易邦办公设备销售有限公司 | A kind of control method for printer |
| CN114179532B (en) * | 2021-12-07 | 2022-11-22 | 北京博示电子科技有限责任公司 | Method and device for moving spray head, electronic equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02137955A (en) * | 1988-11-18 | 1990-05-28 | Seiko Epson Corp | Printer control method |
| US5788383A (en) * | 1989-12-26 | 1998-08-04 | Canon Kabushiki Kaisha | Recording apparatus having a single drive source for conveying recording means and feeding recording medium |
| US6076911A (en) * | 1994-02-08 | 2000-06-20 | Canon Kabushiki Kaisha | Recording apparatus and recording control method |
| US20010026722A1 (en) * | 2000-01-26 | 2001-10-04 | Yoshio Uchikata | Printing apparatus and carriage scan driving method |
-
2003
- 2003-11-04 CN CNB2003101138114A patent/CN100460219C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02137955A (en) * | 1988-11-18 | 1990-05-28 | Seiko Epson Corp | Printer control method |
| US5788383A (en) * | 1989-12-26 | 1998-08-04 | Canon Kabushiki Kaisha | Recording apparatus having a single drive source for conveying recording means and feeding recording medium |
| US6076911A (en) * | 1994-02-08 | 2000-06-20 | Canon Kabushiki Kaisha | Recording apparatus and recording control method |
| US20010026722A1 (en) * | 2000-01-26 | 2001-10-04 | Yoshio Uchikata | Printing apparatus and carriage scan driving method |
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| CN1613657A (en) | 2005-05-11 |
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Granted publication date: 20090211 Termination date: 20101104 |