EP1161346B1 - Druckvorrichtung mit einem papiertransport - Google Patents
Druckvorrichtung mit einem papiertransport Download PDFInfo
- Publication number
- EP1161346B1 EP1161346B1 EP00920377A EP00920377A EP1161346B1 EP 1161346 B1 EP1161346 B1 EP 1161346B1 EP 00920377 A EP00920377 A EP 00920377A EP 00920377 A EP00920377 A EP 00920377A EP 1161346 B1 EP1161346 B1 EP 1161346B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- pair
- printing device
- recording medium
- 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.)
- Expired - Lifetime
Links
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
- 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
- B41J11/02—Platens
- B41J11/08—Bar or like line-size platens
-
- 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
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
Definitions
- the invention relates to a printing device according to the preamble of claim 1.
- a printing device of the type mentioned is from DE 23 09 684 A1 known.
- the electrode comb and a holder for a recording medium supply roll are in the Lower part and a transport device designed as a pressure roller for a record carrier in the upper part arranged.
- the electrode comb is spatial to the pressure roller assigned, the individual electrodes against the pressure roller are sprung.
- the pressure roller thus forms Platen and in cooperation with the electrodes a record carrier transport device.
- the top has two side walls, one inserted into the receptacle Enclose the recording medium supply roll on the side.
- the known arrangement has the advantage that a record carrier supply roll is particularly easy to insert.
- the arrangement may also be well suited for a printing device be the one as the printhead the record carrier only has a line-like electrode comb. Should but one flat and at a distance from the record carrier opposite printhead are used, so this is Arrangement cannot be used.
- WO 91 13765 A1 describes a printer which also a lower part and on this around a pivot axis includes pivotally mounted upper part.
- a printhead is in the lower part and a pressure bar as well as a holder for a recording medium supply roll in the upper part arranged.
- As a transport device for a record carrier two pairs of transport rollers are provided, one of which is in the direction of transport of the record carrier seen, located in front of the pressure bar and at the same time driven with a second pair of transport rollers is located behind the pressure bar.
- a disadvantage is believed to be due to the location of the media stock roll in the upper part of the record carrier through a slot and around the front of the Upper transport roller and the pressure bar must be led around. Replacing one Record carrier supply roll is thus developed difficult and time consuming.
- the object of the invention is therefore a printing device of the type mentioned that a printhead can be used, the recording medium at a distance faces and at least its pressure elements extend across the width of a print line.
- the task is for a printing device according to the preamble of claim 1 by the characterizing features of claim 1 solved.
- the pressure counter bearing is in the printing area character or movable in print line direction column-specific printhead flat, includes the transport device one aligned parallel to the print area pair of transport rollers driven by a motor and one Tightening device for the recording medium and in Print line direction seen is next to the print area Parking area for the print head arranged.
- the platen can for a non-contact printhead as a simple one Support plate, but must be used when using a stop print head be designed as a pressure bar.
- a pressure bar one described below Combination of one on one side of the Pressure roller arranged pair of transport rollers and one tightening device arranged on the other side ensures that the recording medium in the area of Platen is always taut.
- the print head is preferably one in the print line direction Ink printhead movable parallel to the platen, one or more print lines at the same time can print.
- a good one Tension of the record carrier in the area of the platen achieved in that a pair of transport rollers, in Direction of transport of the record carrier seen, behind the platen and one made of a material with high Friction coefficient formed recording medium brake before Platen is arranged.
- the first pair of transport rollers pulls the one held back by the recording medium brake Record carrier on the platen past.
- the record carrier brake can be made from one elastic compressible plastic strips with high coefficient of friction exist, which is supported on the platen.
- the tension of the record carrier in the area of the platen achieved in that a first pair of transport rollers, seen in the direction of transport of the record carrier, in front of the platen and at the same time as the first pair of transport rollers driven second pair of transport rollers is arranged behind the platen, whereby the second pair of feed rollers with a slight greater peripheral speed than the first pair of transport rollers is driven and a less than this Has coefficient of friction, so that the recording medium feed width determined by the first pair of transport rollers becomes.
- the pair of transport rollers or the first and second pair of transport rollers from a bearing mounted in the upper part attacking on the back of the record carrier driven roller and a mounted in the lower part towards the driven roller with the force a spring loaded on the recording side of the Record carrier attacking free-running counter role educated.
- the counter roles are from the record carrier when it is fed taken along, move with it without slipping With. This makes blurring of the print reliable avoided.
- the arrangement of the pivot axis of the upper part on the same Height like a the first counter roller and the first driven one Rolling centerline or below of this ensures that when pivoting the upper part in its open position after swiping over one minimum swivel angle the pair of transport rollers and the tightening device is open, the record carrier is not taken along when swiveling.
- the reverse order is also possible. It is essential that the two locking elements are complementary to each other.
- a two-leg release lever is pivoted, one leg of which is intended to be attached to the at least a locking lever in the sense of unlocking the to attack complementary locking elements.
- the at least one Locking lever can only be brought into the unlocked position, if the print head is in the parking area or in front of it acceleration range lying within the pressure range, i.e. outside of the print area. This is when replacing the record carrier stock roll the sensitive Mouthpiece of the printhead against unauthorized contact and the operator's hands are protected from contamination.
- the printhead is to make the printer impossible additionally in the parking area or the acceleration area blocked when the top is outside the Pressure position.
- a printing device is generally designated 10. It comprises a lower part 12 with side cheeks 13 and an upper part 14. The latter is about a pivot axis 16 held pivotably on the rear area of the lower part 12, as the arrow A shows.
- an ink print head 18 On the lower part 12 is an ink print head 18 in the direction Movable perpendicular to the plane of the drawing on guide rails 19 stored, which is held in the side cheeks 13 are.
- Below the ink print head 18 is one on one first shaft 20 freely rotatable first counter roller 22 of a first Pair of transport rollers 24 and above the ink print head 18 a freely rotatable on a second shaft 26 second counter roller 28 of a second pair of transport rollers 30 arranged.
- the two ends of the are parallel to the direction of displacement of the ink print head 18 extending waves 20, 26 are from a pressure spring 32 and 34 (only a pressure spring can be seen) in the direction of Upper part 14 biased elastically.
- the ink print head 18 opposite is in Area of the inkjet printhead 18 planar platen 36 attached.
- Below the platen 36 is one first driven roller 38 of the first pair of transport rollers 24 and a second one above the ink print head 18 driven roller 40 of the second pair of transport rollers 30 arranged.
- the first and second driven rollers 38, 40 are shared by two, arranged in the lower part 12 Drive motor, not shown, driven.
- the second driven roller 40 has a slightly larger one Scope as the first driven roller 38.
- That Platen 36 and the first and second driven Rollers 38, 40 are in two aligned parallel to each other Side walls 42 held, the platen 36 slightly in the direction of the print head 18 via the driven Rolls 38, 40 protrudes so that a record carrier 66 abuts this.
- the pivot axis 16 the upper part 14 is at the same height as one first counter roller 22 and first driven roller 38 penetrating center line 25. It can also be below this lie.
- a locking pin 44 is perpendicular to each side wall 42 to the outside.
- Upper part 14 engages the locking pin 44 in a claw 46 which in a flank of a pivot pin 48 pivotable locking lever 50 is incorporated.
- Above the Claw 46 tapers the locking lever 50 to an insertion bevel 52 for the locking pin 44.
- the locking lever 50 is in Direction of its shown with solid lines Locking position with the force of a locking spring 54 acted upon.
- a two-legged Release lever 56 around one of the side walls 42 vertically penetrating second pivot axis 57 pivotable stored.
- the uprights of the release levers 56 are interconnected by a handle 58 connected so that the release lever assembly 56, 58th grips the upper part 14 in a U-shape.
- the free leg 60 each locking lever 56 is with its solid Lines shown at rest on the flank of the Locking lever 50, into which the claw 46 is also incorporated is.
- a recording medium supply roll 64 arranged in the lower part 12 of the printer 10 in the lower part 12 of the printer 10 in the lower part 12 of the printer 10 is between the side walls 42 of the upper part 14 and near the pivot axis 16 a upwardly open receiving trough 62 for a recording medium supply roll 64 arranged. That from the bottom the recording medium supply roll 64 end of the Record carrier 66 is from the bottom around the first and the second pair of transport rollers 24, 30 passed around.
- unlocking lever 56 By adjusting the unlocking lever 56 in with Dashed lines shown unlocking position 56 'press their free legs 60 into their locking levers 50 unlocked position shown with dash-dotted lines 50 ', so that the upper part 14 in its in Fig. 2nd shown unfolded position can be pivoted.
- the free legs 60 of the unlocking lever come here 56 out of engagement with the locking levers 50, which under the Power of the locking locks 54 in their original position to return.
- the recording medium supply roll 64 in the receiving trough 62 inserted and the record carrier 66 on the driven rollers 38, 40 are placed.
- the upper part 14 is folded down into that shown in FIG. 1 Positioned, the locking pins 44 slide along the lead-in chamfers 52 until they engage the claws 46 engage.
- the record carrier 66 is in the drive roller pairs 24, 30 pinched. Will their drive motor briefly energized, the record carrier 66 is forward the platen 36 additionally tightened and the printer 10 is ready to print.
- the top view in Fig. 3 shows that the area divided into three sections between the side walls 13 is: an acceleration area 68, a pressure area 70 and a parking area 72.
- the platen 36 extends over the entire pressure range 70.
- parking area adjoining the printing area 70 on the right a so-called docking station 74 is arranged, which a drying out of the ink print head 18 preventing Cover cap 76 and a wiper lip 78 includes.
- the docking station 74 can also additionally have a suction device for cleaning the ink nozzles of the ink print head 18 include. Docking stations for ink printers are common known. A more detailed description of their structure and their Effectiveness is therefore superfluous.
- the acceleration range 68 is required if in both directions of transport of the ink print head 18 and with a constant Print quality should be printed. If the ink print head 18 starts from the left side cheek 13 in FIG. 3, he already has his when entering the printing area 70 Target speed reached.
- a first leg 80 projects inside the parking area 72 one with the force of a third pressure spring 86 in the direction of the upper part 14 acted blocking lever 82nd in the path of the ink print head 18.
- a second Leg 84 of the blocking lever 82 engages behind the Right locking lever 50, so that it is blocked and the upper part 14 is not pivoted out of its pressure position can be.
- the blocking position of the blocking lever 82 is shown in dash-dotted lines.
- the ink printhead 18 but brought into its parking position shown in FIG. 3, he moves the blocking lever 82 to the right in its release position shown with solid lines, the right locking lever 50 is released and that Upper part 14 can be pivoted out of the pressure position.
- a printhead locking lever 88 height-adjustable In the lower part 12 of the printer 10 is also a printhead locking lever 88 height-adjustable. This has one first leg 90, which is in the displacement of the ink print head 18 protrudes. A second leg 92 of the printhead lock lever 88 protrudes into the swivel path of the upper part 14 Printhead locking lever 88 is between one with its first Leg 90 in the path of the ink print head 18 protruding locking position (shown in dot-dash lines in FIG. 1) and a position releasing the displacement path (shown in Fig. 1 with solid lines) adjustable. He is in the direction of his locked position with the force a fourth pressure spring 94 biased.
- the printhead lock lever 88 is for the displacement of the ink print head 18 arranged so that the latter in the park position can be held. As long as the top 14 is in its print position, the print head locking lever 88 held in its release position and the Ink printhead 18 can be moved as desired. Becomes the upper part 14 pivoted out of the printing position, moves printhead locking lever 88 driven by the fourth pressure spring 94 in its locked position.
- the blocking lever 82 and the printhead locking lever 88 work together in such a way that on the one hand the upper part 14 only can be brought out of its printing position if itself the ink print head 18 is in the parking area 72, and that on the other hand, the ink print head 18 only from the parking area 72 can be moved when the upper part 14 in its Pressure position. This will make it more reliable Protection of the ink printhead 18 against accidental touch reached.
Landscapes
- Ink Jet (AREA)
- Common Mechanisms (AREA)
- Handling Of Sheets (AREA)
- Handling Of Continuous Sheets Of Paper (AREA)
- Advancing Webs (AREA)
Description
- Fig. 1
- eine schematische Seitenansicht einer Druckvorrichtung mit geschlossenem Oberteil,
- Fig. 2
- eine schematische Seitenansicht der Druckvorrichtung mit aufgeklapptem Oberteil,
- Fig. 3
- die Druckvorrichtung in einer schematisierten Draufsicht.
Claims (14)
- Druckvorrichtung (10) mit einem Unterteil (12) und einem an diesem angelenkten Oberteil (14), wobei eine Abbildungseinrichtung (18) und eine Aufnahmemulde (62) für eine Aufzeichnungsträger-Vorratsrolle (64) in dem Unterteil (12) und eine Transportvorrichtung (24, 30) für einen Aufzeichnungsträger (66) und ein sich über einen Druckbereich (70) erstreckendes, der Abbildungseinrichtung (18) räumlich zugeordnetes Druckgegenlager (36) in dem Oberteil (14) angeordnet sind, das Oberteil (14) zwei Seitenwände (42) aufweist, die eine in die Aufnahmemulde (62) eingelegte Aufzeichnungsträger-Vorratsrolle (64) seitlich umschließen, und das Oberteil (14) zwischen einer die Aufnahmemulde (62) freigebenden Öffnungsstellung und einer Druckstellung, in der das Druckgegenlager (36) der Abbildungseinrichtung (18) gegenübersteht, um eine Schwenkachse (16) schwenkbar ist,
dadurch gekennzeichnet, daß die Abbildungseinrichtung ein in Druckzeilenrichtung verschieblicher zeichen- oder spaltenserieller Druckkopf (18) ist,
das Druckgegenlager (36) im Druckbereich (70) des Druckkopfes (18) planeben ist,
die Transporteinrichtung ein parallel zu dem Druckbereich (70) ausgerichtetes durch einen Motor antreibbares Transportrollenpaar (24) und eine Straffungseinrichtung (30) für den Aufzeichnungträger (66) umfaßt,
und daß in Druckzeilenrichtung gesehen neben dem Druckbereich (70) ein Parkbereich (72) für den Druckkopf angeordnet ist. - Druckvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Druckkopf (18) mehrere Druckzeilen gleichzeitig drucken kann.
- Druckvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Druckkopf ein Tintendruckkopf (18) ist.
- Druckvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß ein Transportrollenpaar, in Transportrichtung des Aufzeichnungsträgers (66) gesehen, hinter dem Druckgegenlager (36) und eine aus einem Material mit hohem Reibwert gebildete Aufzeichnungsträger-Bremse vor dem Druckgegenlager (36) angeordnet ist.
- Druckvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß ein erstes Transportrollenpaar (24), in Transportrichtung des Aufzeichnungsträgers (66) gesehen, vor dem Druckgegenlager (36) und ein zeitgleich mit dem ersten Transportrollenpaar (24) angetriebenes zweites Transportrollenpaar (30) hinter dem Druckgegenlager (36) angeordnet ist, wobei das zweite Transportrollenpaar (30) mit einer geringfügig größeren Transportgeschwindigkeit als das erste Transportrollenpaar (24) angetrieben wird und einen gegenüber diesem geringeren Reibwert hat.
- Druckvorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß das Transportrollenpaar oder auch das erste und zweite Transportrollenpaar (24; 30) aus einer am Oberteil (14) gelagerten, an der Rückseite des Aufzeichnungsträgers (66) angreifenden angetriebenen Rolle (38; 40) und einer am Unterteil (12) gelagerten, in Richtung auf die angetriebene Rolle (38; 40) mit der Kraft einer Feder (32; 34) beaufschlagten, an der Auzeichnungsseite des Aufzeichnungsträgers (66) angreifenden frei laufenden Gegenrolle (22; 28) gebildet ist.
- Druckvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schwenkachse (16) auf der gleichen Höhe wie eine die erste Gegenrolle (22) und die erste angetriebene Rolle (38) durchsetzenden Mittellienie (25) oder unterhalb von dieser liegt.
- Druckvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß am Unterteil (12) wenigstens ein Rasthebel (50) schwenkbar gelagert ist und an der dem Rasthebel (50) benachbarten Seitenwand (42) des Oberteils (14) ein als Riegelzapfen (44) oder als Klaue ausgebildetes erstes Verriegelungselement und an dem Rasthebel (50) ein zu dem ersten Verriegelungselement komplementär ausgebildetes zweites Verriegelungselement (46) angeordnet ist.
- Druckvorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß an der dem Rasthebel (50) benachbarten Seitenwand (42) bei der der Schwenkachse (16) fernen Seite des Oberteils (14) ein zweischenkliger Entriegelungshebel (56) schwenkbar gelagert ist, dessen einer Schenkel (60) dazu bestimmt ist, an dem wenigstens ein Rasthebel (50) im Sinne einer Entriegelung der komplementären Verriegelungselemente (44, 46) anzugreifen.
- Druckvorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß an beiden Seiten des Unterteils (12) ein Rasthebel (50) und an beiden Seiten des Oberteils (14) ein Entriegelungshebel (56) angeordnet ist, daß die Entriegelungshebel (56) U-förmig miteinander verbunden sind und daß die U-förmige Entriegelungshebel-Anordnung (56, 58, 56) das Oberteil (14) übergreift und um eine die Seitenwände (42) des Oberteils (14) senkrecht durchsetzende Schwenkachse (57) schwenkbar ist.
- Druckvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sich zumindest auf einer Seite des Druckbereichs (70) an letzteren ein Beschleunigungsbereich (68) für den Druckkopf (18) anschließt.
- Druckvorrichtung nach den Ansprüchen 8 bis 11, dadurch gekennzeichnet, daß der wenigstens eine Rasthebel (50) nur in die Entriegelungsstellung bringbar ist, wenn sich der Druckkopf (18) in dem Parkbereich (72) oder dem Beschleunigungsbereich (68) befindet.
- Druckvorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß der Druckkopf (18) in dem Parkbereich (72) oder dem Beschleunigungsbereich (68) blockiert ist, wenn sich das Oberteil (14) außerhalb der Druckstellung befindet.
- Druckvorrichtung nach einem der Ansprüche 5 bis 13, dadurch gekennzeichnet, daß zumindest die Gegenrolle (28) des Transportrollenpaares bzw. des zweiten Transportrollenpaares (30) eine von Drucktinte nicht benetzbare Oberflächenstruktur hat und/oder aus einem von Drucktinte nicht benetzbaren Material besteht.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19912255 | 1999-03-18 | ||
DE19912255 | 1999-03-18 | ||
PCT/DE2000/000766 WO2000056551A1 (de) | 1999-03-18 | 2000-03-11 | Druckvorrichtung mit einem papiertransport |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1161346A1 EP1161346A1 (de) | 2001-12-12 |
EP1161346B1 true EP1161346B1 (de) | 2003-06-11 |
Family
ID=7901542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00920377A Expired - Lifetime EP1161346B1 (de) | 1999-03-18 | 2000-03-11 | Druckvorrichtung mit einem papiertransport |
Country Status (5)
Country | Link |
---|---|
US (1) | US6637959B1 (de) |
EP (1) | EP1161346B1 (de) |
JP (1) | JP2002539975A (de) |
DE (1) | DE50002534D1 (de) |
WO (1) | WO2000056551A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6979080B2 (en) * | 2001-08-29 | 2005-12-27 | Brother Kogyo Kabushiki Kaisha | Printer having improved recording medium feeding mechanism |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2309684A1 (de) | 1973-02-27 | 1974-09-05 | Olympia Werke Ag | Elektrographische druckvorrichtung mit mehreren elektroden |
US4929099A (en) * | 1988-01-19 | 1990-05-29 | Qume Corporation | Multi-line serial printer |
DE4008541C1 (de) | 1990-03-16 | 1991-11-21 | Siemens Nixdorf Informationssysteme Ag, 4790 Paderborn, De | |
MY108211A (en) | 1991-02-28 | 1996-08-30 | Canon Kk | Information processing apparatus |
JP3019877B2 (ja) | 1991-06-13 | 2000-03-13 | セイコーエプソン株式会社 | インクジェットプリンタの印字機構 |
US5668581A (en) | 1993-10-27 | 1997-09-16 | Mita Industrial Co., Ltd. | Ink jet printing apparatus |
JP3666139B2 (ja) | 1996-09-26 | 2005-06-29 | ブラザー工業株式会社 | 印字装置 |
US5993093A (en) * | 1997-11-04 | 1999-11-30 | Schoennauer; Larry Joseph | Printer |
US6004053A (en) * | 1998-09-11 | 1999-12-21 | Comtec Informationsystems, Inc. | Printer apparatus |
ES2195833T3 (es) * | 1999-12-15 | 2003-12-16 | Seiko Epson Corp | Impresora. |
-
2000
- 2000-03-11 WO PCT/DE2000/000766 patent/WO2000056551A1/de active IP Right Grant
- 2000-03-11 JP JP2000606429A patent/JP2002539975A/ja active Pending
- 2000-03-11 DE DE50002534T patent/DE50002534D1/de not_active Expired - Lifetime
- 2000-03-11 EP EP00920377A patent/EP1161346B1/de not_active Expired - Lifetime
- 2000-03-11 US US09/913,989 patent/US6637959B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2002539975A (ja) | 2002-11-26 |
EP1161346A1 (de) | 2001-12-12 |
WO2000056551A1 (de) | 2000-09-28 |
US6637959B1 (en) | 2003-10-28 |
DE50002534D1 (de) | 2003-07-17 |
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