KR20140092618A - Apparatus for printing image on a paper - Google Patents
Apparatus for printing image on a paper Download PDFInfo
- Publication number
- KR20140092618A KR20140092618A KR1020130004886A KR20130004886A KR20140092618A KR 20140092618 A KR20140092618 A KR 20140092618A KR 1020130004886 A KR1020130004886 A KR 1020130004886A KR 20130004886 A KR20130004886 A KR 20130004886A KR 20140092618 A KR20140092618 A KR 20140092618A
- Authority
- KR
- South Korea
- Prior art keywords
- ink
- module
- wiper
- wiper roller
- roller
- Prior art date
Links
- 238000012423 maintenance Methods 0.000 claims abstract description 23
- 238000011109 contamination Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 description 10
- 238000012546 transfer Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
- B41J2/16541—Means to remove deposits from wipers or scrapers
-
- 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
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16579—Detection means therefor, e.g. for nozzle clogging
-
- 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
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2002/16582—Maintenance means fixed on the print head or its carriage
Landscapes
- Ink Jet (AREA)
Abstract
A document output apparatus according to an embodiment of the present invention includes: a print head having an ink nozzle portion on a bottom surface thereof; And a maintenance module provided movably below the print head and provided for maintenance of the ink nozzle unit. The maintenance module includes a wiper roller for wiping ink adhering to the ink nozzle unit, And an ink removing mechanism for removing the ink absorbed by the wiper module, wherein the ink removing mechanism comprises: a vibrator mounted on a rotating shaft of the wiper roller; And a sensor mounted on the upper side of the wiper roller to sense the degree of contamination of the wiper roller.
Description
The present invention relates to a document output apparatus including a printer.
The document output device is a device coupled to a host device including a computer and outputs image data transmitted from the host device to a print medium including paper in accordance with a print signal applied from the host device. Such a document output apparatus includes a print medium supply unit for supplying a print medium, an image forming unit for forming an image on the print medium, and a discharge unit for discharging the print medium on which the image is formed.
Specifically, the image forming section can be divided into an inkjet method using ink, and a laser jet method using toner and laser, depending on the printing material. The document output device of the inkjet method is a method in which ink is jetted onto the printing paper through an ink nozzle provided in the print head. The inkjet document output device includes a shuttle system in which the print head moves in the left and right direction, a PSA (Page Straight Array) printer formed in a length corresponding to the width of the printing paper, Can be divided into printers.
Recently released PSA or pagewidth printers have reached print speeds of around 60 ppm (Page Per Minute). A PSA or pagewidth printer-related patent is the printhead structure of the applicant Silverbrook research Pty Ltd.
On the other hand, in the case of an ink-jet printer, printing is performed in such a manner that ink droplets are separated from the ink nozzles and fall on the printing paper through a piezoelectric or thermal electric field in the print head. In the case of such an ink jet printer, the maintenance of preventing the contamination of the print head before and after printing is directly related to the performance and the life of the printer. For this reason, a wiper module for cleaning the ink nozzle portion of the print head periodically is mounted.
FIG. 1 is a perspective view showing a maintenance module and a print head having a conventional print head cleaning function, and FIG. 2 is a perspective view showing a wiper module constituting a conventional maintenance module.
1 and 2, a conventional pagewidth printer includes a
In detail, the
More specifically, the
When ink is transferred to the
In the conventional wiper module as described above, the contamination level of the wiper roller can not be precisely known, and the ink absorbed in the wiper roller is again deposited on the ink nozzle part of the print head, which may cause the print paper to be contaminated during the printing process .
SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems and provides a document output device capable of minimizing contamination degree of the wiper roller and the print head by effectively separating the ink absorbed in the wiper by sensing the degree of contamination of the wiper roller .
According to an aspect of the present invention, there is provided a document output apparatus including a print head having an ink nozzle unit on a bottom surface thereof; And a maintenance module provided movably below the print head and provided for maintenance of the ink nozzle unit. The maintenance module includes a wiper roller for wiping ink adhering to the ink nozzle unit, And an ink removing mechanism for removing the ink absorbed by the wiper module, wherein the ink removing mechanism comprises: a vibrator mounted on a rotating shaft of the wiper roller; And a sensor mounted on the upper side of the wiper roller to sense the degree of contamination of the wiper roller.
The document output apparatus according to the embodiment of the present invention having the above-described structure has the following effects.
There is an advantage that the contamination of the ink nozzle portion can be minimized by detecting the state of the wiper module before and after the printing operation to remove the ink absorbed in the wiper module according to the degree of contamination of the wiper module.
Further, since the transporter roller and the scraper member for removing the ink absorbed in the wiper module are not required, the design and assembly process is simplified and the manufacturing cost is reduced.
In addition, since the wiper roller is directly vibrated by using the high-power ultrasonic vibration to remove the ink absorbed in the wiper module, the ink removing efficiency is improved compared to a method of indirectly removing ink using a conventional transfer roller or a scraper .
In addition, since it is not necessary to secure a space for mounting an existing transfer roller or a scraper, it is possible to achieve a compact maintenance module.
1 is a perspective view showing a maintenance module and a print head having a conventional print head cleaning function.
2 is a perspective view showing a wiper module constituting a conventional maintenance module.
3 is a partial perspective view showing a maintenance module configuration of a document output apparatus according to an embodiment of the present invention;
4 is a schematic view illustrating a wiper module cleaning mechanism according to an embodiment of the present invention.
Hereinafter, a document output apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 3 is a partial perspective view showing a maintenance module of the document output device according to the embodiment of the present invention. FIG. 4 is a schematic view illustrating a wiper module cleaning mechanism according to an embodiment of the present invention.
3 and 4, a
In detail, the
The
The
The
In detail, when the
On the other hand, the
In detail, a
A
Here, the reason why the
Then, a spitting process is performed before the printing (BOJ: Before Before Job), between the printing paper being printed and the next printing paper (P2P: Page To Page) and after the printing (EOJ: End Of Job) do. In detail, the splitting process is performed so that the ink nozzle portion always maintains a wet condition, and ink of different colors is prevented from being mixed in the ink nozzle portion, Action. At this time, the wicker structure is also provided in the
Meanwhile, the
In detail, the
The ink removing process of the
In detail, a wiper module cleaning mechanism or a wiper module ink removal mechanism according to an embodiment of the present invention will be described.
The
The wiper
Although the
Meanwhile, the
The operation of the wiper
More specifically, when power is applied to the
As described above, by attaching the
Claims (5)
And a maintenance module movably installed below the print head and provided for maintenance of the ink nozzle unit,
The maintenance module includes:
And a wiper roller for wiping the ink adhering to the ink nozzle unit,
And an ink removing mechanism for removing the ink absorbed by the wiper module,
The ink removing mechanism includes:
A vibrator mounted on a rotating shaft of the wiper roller; And
And a sensor mounted at a predetermined position on the upper side of the wiper roller to detect a degree of contamination of the wiper roller.
Wherein the vibrator includes an ultrasonic generator that vibrates a rotation axis of the wiper roller.
Wherein the sensor comprises a photocoupler sensor.
A body portion for supporting the wiper roller,
And a drain guide formed on an upper surface of the body portion to guide the discharge of the ink falling from the wiper roller.
A module sled accommodating the wiper module,
Further comprising a drain tray provided below the module sled,
And the ink flowing along the drain guide is guided to the drain guide.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130004886A KR20140092618A (en) | 2013-01-16 | 2013-01-16 | Apparatus for printing image on a paper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130004886A KR20140092618A (en) | 2013-01-16 | 2013-01-16 | Apparatus for printing image on a paper |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20140092618A true KR20140092618A (en) | 2014-07-24 |
Family
ID=51739219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020130004886A KR20140092618A (en) | 2013-01-16 | 2013-01-16 | Apparatus for printing image on a paper |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20140092618A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017127988A (en) * | 2016-01-18 | 2017-07-27 | セイコーエプソン株式会社 | Liquid jet device |
-
2013
- 2013-01-16 KR KR1020130004886A patent/KR20140092618A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017127988A (en) * | 2016-01-18 | 2017-07-27 | セイコーエプソン株式会社 | Liquid jet device |
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WITN | Withdrawal due to no request for examination |