CN1216840A - Method of preventing bending phenolmenon fof inkjet printer - Google Patents
Method of preventing bending phenolmenon fof inkjet printer Download PDFInfo
- Publication number
- CN1216840A CN1216840A CN98123588A CN98123588A CN1216840A CN 1216840 A CN1216840 A CN 1216840A CN 98123588 A CN98123588 A CN 98123588A CN 98123588 A CN98123588 A CN 98123588A CN 1216840 A CN1216840 A CN 1216840A
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- CN
- China
- Prior art keywords
- last
- paper
- printing
- print line
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
- B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/008—Controlling printhead for accurately positioning print image on printing material, e.g. with the intention to control the width of margins
Landscapes
- Ink Jet (AREA)
- Record Information Processing For Printing (AREA)
- Dot-Matrix Printers And Others (AREA)
- Character Spaces And Line Spaces In Printers (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
The present invention provides a method for preventing bend of print caused by widening print distance generated by anomalistic paper pass when printing the lower part of the print paper of an ink jet printer. The method comprise steps of: detecting upper margin; forming a picture until last step before printing the last line; adjusting the last print line, wherein linearity paper input quantity and position of the picture of the last print line are adjusted according to measuring result of said detecting step. As a result the print effect near the lower margin is improved.
Description
The present invention discusses a kind of ink-jet printer, more specifically, has discussed the method for the buckling phenomenon that is taken place when a kind of elimination Prints to File the paper bottom.
Printer is a kind of typical output device in the computer peripheral equipment.By the work of computing machine on this media of paper, its energy display file content, thus the user can be understood.
Ink-jet printer is comparatively typical a kind of printer.The user can buy with cheap price, and obtains good print quality.
At first, we describe the general configuration and the principle of operation of ink-jet printer.
Ink-jet printer is made up of following element: a slice CPU, and it carries out system program that stored, that comprise the necessary initial setting up value of printer operation according to contents of program in EEPROM21, the output control character; A slice ROM12 comprises control required various fonts and program; A slice RAM is used for temporal data when system operation; One ASIC circuit unit 20 is sent to described CPU with data; One prints head drive circuit 30, according to the driving of the control signal control printhead 31 that sends CPU10 from described ASIC circuit 20 to; One print cartridge turning motor driving circuit 40 is controlled moving of print cartridge turning motor 41; One linear paper feed motor-drive circuit 50 is controlled a linear paper feed motor 51, so that paper feed and paper delivery; One charger 60 is for whole printing device provides required driving voltage.
By with the printing interface of computing machine, printer receives each transmission signals, and according to the control signal of CPU10, drives each motor 41,51, thereby finish printing.At this moment, described print cartridge 31 forms character pattern by the meticulous black pearl of nozzle ejection with several holes.
When we probably when mechanical aspects is considered, we can illustrate formation such as Fig. 2 or shown in Figure 3 of this system.
Print cartridge is driven by a travelling belt 42 and print cartridge turning motor 41, and it is left and right sides to-and-fro movement between mobile link 44.Filing paper 100 is moved by the linear paper feed cylinder 56 that is driven by linear paper feed motor 51.
Filing paper 100 from carton 70 is clipped between head roll 73 and the platen 72.When finish print to move after, filing paper is pushed out the rotary power that cylinder 74 and extruding drum 72 ' produced and releases.
When print cartridge 31 move left and right, printer prints to filing paper 100 ink-jets by several nozzles of printhead.
Present computer environment is mostly under the Windows pattern.The Windows of ink-jet printer drives based on used first nozzle location of printing head of computing machine, jet size and processing distance etc. and forms printing curve.Graph data from the computing machine to the ink-jet printer is divided into as much as possible downwards by the top from paper, and the print cartridge height of five equilibrium is transferred to printer.Therefore, the work of a sequence such as paper feed, paper feed step number and release filing paper etc., all has been performed.
Fig. 4 has shown the ideal form that printing is moved, and wherein, filing paper is fixed by two cylinders, though arrive last print line.Among the figure, Lt and Lb represent the height of print cartridge, and t represents paper top blank, and b represents paper bottom blank.
The print-head nozzle of supposing an ink-jet printer has 56, and spread length is 1/300 inch, and then maximum printing height once is 56/300 inch (vertically), and the paper displacement after the printing once also is 56/300 inch.
At this moment, the maximum printing district is 56/300 * n inch.When the user do not specify one special on/blank down, and when filling whole figure, then produce as shown in Figure 4 an ideal and print in the maximum printing district.
On the other hand, when the user increased the top blank, problem had just produced.
Fig. 5 has shown the example a when user increases by 20/300 inch with the top blank.The Windows driver always makes and carries out on the basis be printed on first nozzle.The result is, even the actual printing of last print line does not highly reach 56/300, prints the place that also just proceeds to corresponding to height K, though paper has moved 56/300 * n inch.
At this moment, produce deviation between paper and the cylinder.So, be difficult to carry out accurate position control, then print buckling phenomenon, promptly between near the print point of bottom blank space, produced apart from irregular phenomenon.
Therefore, the present invention is intended to overcome this kind defective in the routine techniques, by the data transfer processes of adjustment from computing machine, thereby eliminates the buckling phenomenon that produces when printer paper is sent in the cylinder.
According to the present invention,, below, introduce a kind of buckling phenomenon method of occurring in the ink-jet printer of preventing with example and description widely for reaching these advantages.It may further comprise the steps: detect the clear area, top, wherein, the blank size in user-defined top is detected with respect to the maximum printing district; Constitute the previous step of figure print line to the last; Adjust last print line, wherein, obtain the position of actual last print line, thereby adjust paper feed amount and graph position according to the step of the clear area of being detected, top.
By the reference the following detailed description, and be accompanied by the accompanying drawing of representative corresponding to the reference symbol of like, the present invention will be easier to understand fully, and its attached advantage is also more obvious and be more readily understood.Wherein:
Fig. 1 is a calcspar that common ink-jet printer constitutes;
Fig. 2 or Fig. 3 are the movable diagrammatic sketch that constitutes from mechanical aspects key diagram 1;
Printing diagrammatic sketch when Fig. 4 is a desirable printing situation of movement;
Fig. 5 be one according to routine techniques, have the user and set print result diagrammatic sketch under the blank situation;
Fig. 6 is the process flow diagram of a treatment step of the present invention;
Fig. 7 be one according to of the invention process, have the user and set blank print result diagrammatic sketch.
Clearly, for those of ordinary skills, can not break away from spirit of the present invention at an easy rate and use the variation of the inventive method to prevent the buckling phenomenon that occurs in the ink-jet printer.
Therefore, the present invention has a mind to contain such some changes and variation, as in appended rights statement and suitable scope.
Below, we illustrate formation of the present invention and processing procedure with reference to following accompanying drawing.
Fig. 6 is a demonstration prevents the implementation process of buckling phenomenon according to the present invention a process flow diagram.
At first, the Windows driver forms printed drawings by the image of position mapping (bitmap) form of anacom output.The size of position mapping means the distance of nozzle.That is to say that under the situation of 300dpi, the distance of nozzle is 1/300 inch, and this position mapping is used as the print data of nozzle unit.
In the maximum printing district of printer, the size that the blank that the user sets is set up with the position unit of being mapped as is detected, and its result is used as master data, the paper feed amount when adjusting last the printing with decision.(S11 step)
Figure is output print line to the last.For a unit, printhead with nozzle distance of 56 nozzles and 1/300 inch, the maximum printing height is 56/300 inch.That is, in the longitudinal direction, there is 56/300 inch paper to be printed each time.
Therefore, the Windows driver detects 56 position mappings in the longitudinal direction, stores these results with 56 in graphics buffer, and to the printer of sending.
Detected result is a logical value of being made up of " 0 " and " 1 ".Wherein, the data that " 0 " expression will not printed, " 1 " is then opposite.The data that send the graphics buffer of printer to be exactly actual, corresponding to the data of one and another nozzle.So, data are output to printhead.(S12 step)
Corresponding to the user-defined blank that detects in the step at described S11, before reaching last print line, carry out linear paper feed.If user-defined blank is 20/300, then the maximum printing height of last print line is 56/300 inch-20/300 inch, promptly 36/300 inch.Correspondingly, the end value of graphics buffer is removed 20, so that print since the 36th nozzle print position.
In addition, as shown in Figure 7, from the back of last print line to the end the linear paper feed amount removed of this step of print line be 56/300 inch-20/300 inch (v), i.e. 36/300 (k).(S103 step)
As mentioned above, the present invention is that the supposition printer paper always is fixed under the state between platen and paper feed cylinder and finishes printing, therefore, has in the effect of improving print state near the following blank space of printer paper.
Claims (2)
1. a method that prevents from the ink-jet printer to print buckling phenomenon is made of following steps:
Detect the clear area, top, wherein, user-defined clear area is detected with respect to the size of maximum printable area;
Constitute figure, the back of print line to the last;
Adjust last print line, wherein, according to the end value that the step of described detection top blank obtains, print line in the end, linear paper feed amount and graph position are adjusted.
2. the described method of claim 1, the adjustment amount of the linear paper feed of wherein said last print line only is to deduct user-defined blank size from the printable height of maximum.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR57865/97 | 1997-11-04 | ||
| KR1019970057865A KR100247394B1 (en) | 1997-11-04 | 1997-11-04 | Protecting method for bending in inkjet printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1216840A true CN1216840A (en) | 1999-05-19 |
Family
ID=19524094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98123588A Pending CN1216840A (en) | 1997-11-04 | 1998-11-04 | Method of preventing bending phenolmenon fof inkjet printer |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0914958A3 (en) |
| JP (1) | JPH11198450A (en) |
| KR (1) | KR100247394B1 (en) |
| CN (1) | CN1216840A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6336706B1 (en) | 1998-12-24 | 2002-01-08 | Seiko Epson Corporation | Color printing using a vertical nozzle array head |
| DE102009045833A1 (en) | 2009-10-20 | 2011-05-26 | Lear Corp., Southfield | Seat device with an adjustable headrest device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01195080A (en) * | 1988-01-29 | 1989-08-04 | Canon Inc | Image recording device |
| US5425138A (en) * | 1991-12-26 | 1995-06-13 | Casio Computer Co., Ltd. | Apparatus and method for automatically editing documents including text data and table data with ruled lines |
| US6565190B1 (en) * | 1995-06-14 | 2003-05-20 | Hewlett-Packard Company | Inkjet printing with uniform wear of ink ejection elements and nozzles |
-
1997
- 1997-11-04 KR KR1019970057865A patent/KR100247394B1/en not_active IP Right Cessation
-
1998
- 1998-11-04 EP EP98309037A patent/EP0914958A3/en not_active Withdrawn
- 1998-11-04 CN CN98123588A patent/CN1216840A/en active Pending
- 1998-11-04 JP JP10313748A patent/JPH11198450A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR100247394B1 (en) | 2000-04-01 |
| EP0914958A2 (en) | 1999-05-12 |
| KR19990038213A (en) | 1999-06-05 |
| EP0914958A3 (en) | 1999-12-01 |
| JPH11198450A (en) | 1999-07-27 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |