EP2263122A1 - Vorrichtung zum elektrofotografischen drucken oder kopieren - Google Patents
Vorrichtung zum elektrofotografischen drucken oder kopierenInfo
- Publication number
- EP2263122A1 EP2263122A1 EP09727583A EP09727583A EP2263122A1 EP 2263122 A1 EP2263122 A1 EP 2263122A1 EP 09727583 A EP09727583 A EP 09727583A EP 09727583 A EP09727583 A EP 09727583A EP 2263122 A1 EP2263122 A1 EP 2263122A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hot air
- air blower
- medium
- shaft
- heated
- Prior art date
- 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.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000002184 metal Substances 0.000 description 9
- 239000011888 foil Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
Definitions
- the invention relates to a device according to the preamble of claim 1, for electrophotographic printing or copying, in which toner according to an object to be printed or copied on a medium can be applied and fixed by means of heat on the medium,
- Such a device is known for example from DE 10043 033 A1.
- the toner is fixed on the medium to be printed by means of a flash lamp.
- this gives very good results, but has the disadvantage that in a color printing, the heating of the printed image is different. Because of the different absorption quality of different especially bright colors, the heat absorption of the printed image is different.
- an apparatus for electrophotographic printing or copying in which toner corresponding to an object to be printed or copied is attachable to a medium and heatable on the medium, characterized in that a hot air blower is provided by means of the heated air on the Toner provided with medium, wherein the hot air blower has an input, by means of which the hot air blower air can be supplied, and an output, by means of the heated air from the hot air blower can be emitted.
- the medium to be printed can be heated easily and effectively. Because the heated air heats all colors at the same speed, the fixation is color-independent. By heating the medium to be printed by means of heated air, a high heat input can be achieved, which is why the fixation according to the invention and thus the device according to the invention is suitable for high printing speeds. Furthermore, the heat supply to the medium to be printed can be set or changed very well.
- the hot-air blower has an electrically operable heating coil whose heat output is adjustable. This allows the temperature of the heated air discharged from the hot air blower to be simple Set way. Since a change in the heating power of the electrically operated heating coil can be carried out almost inertia, the heat supply to the medium to be printed can be changed very quickly, whereby the fixation of the invention or the device according to the invention is suitable for different speeds or responds very quickly to a change in speed.
- the hot air blower or the device may have a fan, the air flow rate is adjustable.
- the fan can be adjusted by the hot air blower or via the heating coil promoted air and thus also the amount of heat supplied to the medium to be printed.
- the control of the amount of air and the heating power of the heater accurate dosing of the heat supply is possible, whereby a fixation on both poorly heatable and sensitive materials is possible.
- the medium is guided by means of a longitudinal movement through a shaft into which the heated air can be introduced.
- a very good heat input into the medium to be printed is achieved because there is a very intimate contact between the medium to be printed and the heated air.
- Such an embodiment is therefore particularly well suited for high printing speeds.
- a further improvement of the energy balance of the device according to the invention can be achieved in that the input of the hot air blower is connected to a suction line, the end remote from the hot air blower is arranged at a small distance from the heated medium, as provided in a further particular embodiment of the invention , The hot air blower is thereby already supplied preheated air. Furthermore, the extraction of heat from the heated medium causes the medium to cool faster.
- a flap is arranged at the outlet of the hot air blower, by means of which the heated air can be diverted into an exhaust air duct.
- the hot air blower does not need to be switched off when the device is at a standstill.
- the heated air can be kept almost instantaneously away from the medium to be printed, whereby overheating of the printed medium is avoided.
- the parameters of the hot air blower do not have to be changed by diverting the heated air. This has the consequence that can be dispensed with an adjustment of the parameters when restarting the device.
- a first sensor is provided, by means of which the temperature of the air discharged from the hot air blower can be detected. As a result, the heat supply to the printed medium can be controlled in a simple manner.
- the regulation of the heat supply to the printed medium can also be improved by having a second sensor by means of which the temperature of the air supplied to the hot air blower can be detected, as is provided in a further particular embodiment of the invention.
- the single figure shows a schematic representation of a device according to the invention.
- a metal foil 1 formed as a medium, on which a toner existing print image is arranged consisting of a sheet metal wall 3 1 arranged.
- the wall 3 ' is part of a rectangular channel or shaft 3, through which the metal foil 1 is guided.
- the shaft 3 extends in the transport direction of the metal foil 1 represented by an arrow V.
- the end faces of the shaft 3 are closed by means of metal sheets 3 ", the metal sheets 3" having a slot through which the film enters or leaves the shaft 3 Well 3 is led out.
- a slot nozzle 4 is further arranged, the width of which corresponds to the width of the shaft 3.
- the slot nozzle 4 is Input side connected to the output 2A of a hot air blower 2.
- a hot air blower 2 designed as a heating element 2H electrically operable heating coil is arranged.
- the heating cartridge 2H By means of the heating cartridge 2H, air, which is supplied through the inlet 2E of the hot air blower 2 to the hot air blower 2, are heated.
- a fan is provided for the transport of air through the hot air blower 2.
- the heating power of the heating element 2H is adjustable by a controller 12.
- the input 2E of the hot air blower 2 is connected to a suction line 5.
- the end of the suction line 5 facing away from the hot air blower 2 is arranged in the direction of movement 1 'of the film 1 behind the shaft 3 at a small distance above the film 1.
- the hot air blower 2 is already supplied heated air. This leads to energy savings.
- an intake fan 5 L is arranged, the speed and thus air flow rate of the controller 12 is controllable.
- the output 3A of the shaft 3 is connected to an exhaust duct 13.
- the shaft 3 facing away from the end 13a of the exhaust duct 13 leads into the open.
- a fan 13 L is arranged, the speed and thus air flow rate by means of the controller 12 is adjustable.
- a flap 6 is arranged, by means of which the heated air discharged from the hot air blower 2 can be diverted into a bypass line 7.
- the flap is pivotally mounted about an axis, so that on the one hand the inlet of the slot 4 can be closed, whereby the heated air can enter the bypass line 7, and on the other hand, the bypass line 7 can be closed, whereby the heated air then into the slot 4 can get.
- the pivotal movement of the flap 6 is indicated by an arrow 6 '.
- the position of the flap 6 is controlled by the controller 12.
- the hot air Bubble 2 opposite end of the bypass line 7 is connected to the exhaust duct 13.
- a first sensor 8 is arranged, by means of which the temperature of the air discharged from the hot air blower 2 can be detected.
- a second sensor 9 is arranged, by means of which the temperature of the hot air blower 2 supplied air can be detected.
- a third sensor 10 is arranged at the entrance 3E of the shaft 3, by means of which the temperature of the air present in the shaft 3 at the entrance 3E of the shaft 3 can be detected, and arranged at the output 3A of the shaft 3, a fourth sensor 11, by means of which Temperature of the existing air in the shaft 3 at the output 3A of the shaft 3 can be detected.
- the signal outputs of the sensors 8 to 11 are connected to the controller 12.
- the fixation of the arranged on the film 1 consisting of toner print image can thus be done by means of heated air.
- the heater cartridge 2H is supplied by the controller 12 so much power that the output from the hot air blower 2 air is about 180 C.
- the fan 2V and the suction fan 5L rotate at a low speed. If the transport speed of the film 1 increases, the electric power supplied to the heating cartridge 2H and the rotational speed of the fan 2V and the suction fan 5L are increased.
- the electric power supplied to the heating cartridge 2H and the rotational speed of the fan 2V and the suction fan 5L are always adjusted to the transport speed of the metal foil 1 by the controller 12.
- the airflow passing through the heating cartridge can be regulated from zero to one hundred percent.
- the amount of heat supplied to the film 1 can be adjusted as a function of the speed.
- the temperature of the heating cartridge can be set to seven hundred degrees Celsius when the air speed is very low. If the film 1 stops momentarily, this is recognized by the controller 12 and causes the flap 6 to carry out a pivoting movement represented by the arrow 6 'and to close the inlet of the slot nozzle 4.
- the heated air generated by the hot air blower 2 is then discharged into the bypass line 7 and passes through the exhaust duct 13 to the outside.
- the flap 6 When restarting the film 1, the flap 6 is pivoted back to its original position, whereby the bypass line 7 is closed and the hot air blower 2 generated hot air can pass through the slot 4 into the slot 3 again. Since at standstill of the film 1, only the hot air was diverted and otherwise no parameters were adjusted, the device is immediately ready for operation after pivoting back the flap 6. It accounts for almost any required during commissioning of the device starting operations. In particular, this avoids the heating-up time of the heating cartridge 2H after a cold start.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Ink Jet (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810016689 DE102008016689B4 (de) | 2008-04-01 | 2008-04-01 | Vorrichtung zum elektrofotografischen Drucken oder Kopieren |
| PCT/DE2009/000379 WO2009121325A1 (de) | 2008-04-01 | 2009-03-24 | Vorrichtung zum elektrofotografischen drucken oder kopieren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2263122A1 true EP2263122A1 (de) | 2010-12-22 |
Family
ID=40847833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09727583A Withdrawn EP2263122A1 (de) | 2008-04-01 | 2009-03-24 | Vorrichtung zum elektrofotografischen drucken oder kopieren |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2263122A1 (de) |
| CN (1) | CN101984770B (de) |
| CA (1) | CA2719831A1 (de) |
| DE (1) | DE102008016689B4 (de) |
| WO (1) | WO2009121325A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011010071B4 (de) * | 2011-02-01 | 2014-10-02 | Wolfgang Penc | Farbfixierungssystem |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1522623A1 (de) * | 1966-05-24 | 1969-10-30 | Von Grabe Bernt Fried Walther | Einrichtung zum Fixieren elektrophotographischer Kopien |
| DE7027581U (de) * | 1969-07-24 | 1970-12-23 | Minolta Camera Kk | Fixiervorrichtung fuer elektrische kopiergeraete. |
| DE2613066A1 (de) * | 1976-03-26 | 1977-09-29 | Siemens Ag | Fixiereinrichtung fuer auf einem aufzeichnungstraeger aufgebrachtes tonerpulver |
| JPS57124770A (en) * | 1981-01-27 | 1982-08-03 | Sanyo Electric Co Ltd | Microwave heater |
| US4537492A (en) * | 1983-07-07 | 1985-08-27 | Itek Corporation | Heater-drier for fusing toner images on wet printing plates |
| JPH11143259A (ja) * | 1997-11-06 | 1999-05-28 | Matsushita Electric Ind Co Ltd | 定着装置 |
| JP2000267477A (ja) * | 1999-03-16 | 2000-09-29 | Matsushita Electric Ind Co Ltd | 画像形成装置 |
| DE10043033A1 (de) | 2000-09-01 | 2002-03-21 | Csat Computer Systeme | Elektrophotographischer oder ionographischer Drucker mit variabler Druckgeschwindigkeit |
| US6754457B2 (en) * | 2001-04-06 | 2004-06-22 | Nexpress Solutions Llc | Pre-heater for an electrostatographic reproduction apparatus fusing assembly |
-
2008
- 2008-04-01 DE DE200810016689 patent/DE102008016689B4/de not_active Expired - Fee Related
-
2009
- 2009-03-24 CN CN200980110945.6A patent/CN101984770B/zh not_active Expired - Fee Related
- 2009-03-24 WO PCT/DE2009/000379 patent/WO2009121325A1/de not_active Ceased
- 2009-03-24 CA CA2719831A patent/CA2719831A1/en not_active Abandoned
- 2009-03-24 EP EP09727583A patent/EP2263122A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009121325A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008016689B4 (de) | 2012-12-20 |
| CN101984770A (zh) | 2011-03-09 |
| WO2009121325A1 (de) | 2009-10-08 |
| CN101984770B (zh) | 2013-02-06 |
| DE102008016689A1 (de) | 2009-10-15 |
| CA2719831A1 (en) | 2009-10-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed |
Effective date: 20101102 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: HEIDELBERGER DRUCKMASCHINEN AG |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MATHEA, HANS |
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| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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| INTG | Intention to grant announced |
Effective date: 20160506 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20160917 |