TW201808663A - Printhead unit assembly for use with an inkjet printing system - Google Patents

Abstract

Features for various embodiments of a self-contained printhead unit, including an on-board fluidic system, quick-coupling electrical and pneumatic interfacing, in conjunction with the features of various embodiments of a kinematic mounting and air bearing clamping assembly, as well as contactless integration to a waste assembly, together provide for the ready interchangeability of a plurality of printhead units in a printing system during a printing process, while at the same time preventing cross-contamination of a plurality of end-user selected inks contained in each of a plurality of printhead units.

Description

Print head unit for use with an inkjet printing system Related literature cross-reference

The present application claims priority to U.S. Patent Application Serial No. 13/839,993, the entire disclosure of which is hereby incorporated by reference. The present application claims the benefit of U.S. Provisional Application No. 61/646,159, filed on May 11, 2012, and the entire disclosure of which is incorporated herein by reference. The full text of all cross-referenced applications listed herein is incorporated by reference.

The field of the teachings relates to an interchangeable printhead unit assembly for use in an industrial inkjet film printing system.

Various embodiments of the printhead unit assembly can include a printhead unit, a mounting and clamping assembly, and an interface assembly in accordance with the present teachings. For each of the specific examples of the print head unit assembly according to the present teachings, each component in communication with the manifold (such as, but not limited to, a manifold, a valve, a reservoir, a vacuum source, a gas source that communicates with the port ( For example, an inert gas source), an inkjet printhead assembly, and the like can be mounted on the manifold and can be sealed using an O-ring seal to eliminate its use for conduit connections. Thus, various embodiments of the manifold assembly of the present teachings can minimize undesirable volume of the crucible and increase printhead unit robustness by avoiding failure modes common to various conduit and conduit connections. Print nozzle for this teaching Various embodiments of the unit assembly, the print head unit, and the mounting and clamping assembly provide repeatable, unstrained positioning of the print head unit in the printing system. In various embodiments of the printhead unit assembly of the present teachings, the printhead unit and interface assembly can be characterized as being readily interchangeable with various printhead units and printing systems. The ease of interchangeability of the unstrainable repositionable printhead unit in a printing system provides flexibility in producing target film procedures, as well as reliable high throughput production printing.

The present teachings disclose specific examples of printhead unit assemblies for use in industrial inkjet film printing systems that can be used in a variety of printing processes. Various specific examples of the printhead unit assembly of the present teachings can include a printhead unit, a mounting and clamping assembly, and an interface assembly. In accordance with the present teachings, the devices, devices, systems, and methods disclosed herein can be used, for example, but not limited to, to develop various printing programs and to provide efficient production scale printing.

In other aspects, it is contemplated that desirable attributes for a printhead unit for fabricating an OLED panel substrate using, for example, but not limited to, an inkjet printing process can include various formulations on a substrate during a printing process. The efficient printing of multiple inks provides end user flexibility. However, while sequential printing of a plurality of inks is desirable during the printing process, cross-contamination of a plurality of ink and ink formulations is undesirable. Thus, an effective sequence-printing design for a plurality of inks that implement various formulations should additionally eliminate cross-contamination.

With regard to the positioning of the print head unit that is often moved in and out of the printing system, it is desirable to provide installation and clamping with unstrained repeatable positioning of the print head unit and to provide fully automated print head exchange. As used herein, no strain indication is substantially reduced without substantially eliminating lateral forces that can cause improper displacement of the printhead unit in the mounting and clamping assembly. Regarding the flexible movement of the print head unit into and out of the printing system, the type of interconnection required from the printing system to the print head unit (such as electrical interconnections, pneumatic interconnections, and fluid interconnections) This can cause problems with the rapid and efficient interchangeability of various printhead units. In the case of the number of print head units that can be moved into and out of the printing system frequently, the identification of each print head unit and its operational information can be used to prevent selection errors during the automated exchange of the print head unit. In addition, the design of the printhead unit assembly should provide for robustness and ease of maintenance of the printhead unit during use to avoid substantial downtime.

Thus, various specific examples of the printhead unit assembly and system of the present teachings can include a self-contained printhead unit for mounting the printhead unit to the printing system to provide for the desired attributes and challenges. Repeated installation and clamping assembly for unstrained printhead unit positioning, as well as interface assembly for fast and automated electrical and pneumatic interconnection. These components are designed to provide an efficient and reliable printing process for inkjet printing of thin films such as, but not limited to, ink jet printing of organic light emitting diode (OLED) films. In addition, various embodiments of the printhead unit assembly and system of the present teachings provide for the identification and tracking of the printhead unit and the ease of maintenance of various specific examples of the printhead unit for the present teachings.

For each of the specific examples of the print head unit of the present teachings, each print head unit can be a self-contained assembly, wherein a plurality of self-contained print head units can be easily interchanged into a printing system during the printing process. . Various embodiments of the self-contained print head unit can have a fluid system that can include a pneumatic manifold block assembly, a fluid manifold block assembly, and a primary dispense reservoir, the primary dispense reservoir can be coupled to a pneumatic manifold The fluid manifold is in fluid communication. Various embodiments of the printhead unit can have a fluid system further including a high volume ink reservoir in fluid communication with the primary dispense reservoir. Various specific examples of high volume ink reservoirs can have inlet ports and vents that can be filled with large volume ink reservoirs. The filling of the large capacity ink reservoir can be performed in manual or automated mode. In various embodiments, the filling of the bulk ink reservoir can be performed by periodically supplying ink from an external supply source to the bulk ink reservoir via a supply port, the supply port being reversible Here, the physical connector that was attached before being refilled and detached after refilling is joined to the large-capacity ink reservoir inlet Pass. In various embodiments, the filling of the bulk ink reservoir can be performed by periodically supplying ink from an external supply source to the bulk ink reservoir via a supply port that is close to the inlet The port can direct ink from the external supply through the supply port without using a physical connector that engages the supply port and the inlet port.

Various embodiments of self-contained printhead units can have large capacity inkjet reservoirs that can have a continuous supply of ink to the primary dispense reservoir throughout the process of the printing process. volume of. The continuous supply of ink to the primary dispense reservoir maintains a constant volume in the primary dispense reservoir, and the primary dispense reservoir can be in fluid communication with the printhead during printing. Thus, the constant volume in the primary dispensing reservoir provides a negligible change in ink pressure at the plurality of print nozzle nozzles in the printhead. In other aspects, various embodiments of the printhead unit include at least one liquid level indicator to maintain a defined fill level for the primary dispense reservoir such that ink from the bulk ink reservoir is during printing The primary dispensing reservoir is continuously replenished to a defined fill level. In various embodiments, the periodic supply of ink from the external supply to the bulk ink reservoir can occur between print operations in the maintenance site. Thus, the self-contained printhead unit for ink supply that does not require a conduit connection from a source external to the printhead unit eliminates the need for heavy conduit disconnection and reconnection during the exchange of various printhead units, and The need for a heavy conduit line provided to the print head during the active printing operation is further eliminated.

Various specific examples of the manifold assembly of the present teachings can have a plurality of channels fabricated within the manifold assembly and provide fluid communication between, for example, but not limited to, the plurality of valves providing fluid control. Multiple ports. Thus, various specific examples of the manifold assembly of the present teachings can provide fluid distribution and control. For each of the specific examples of the print head unit assembly according to the present teachings, each component in communication with the manifold (such as, but not limited to, a manifold, a valve, a reservoir, a vacuum source, a gas source that communicates with the port ( For example, an inert gas source), an inkjet printhead assembly, and the like can be mounted on the manifold and can be sealed using an O-ring seal, thereby Exclude its use of the catheter connection. Thus, various embodiments of the manifold assembly of the present teachings can minimize undesirable volume of the crucible and increase printhead unit robustness by avoiding failure modes common to various conduit and conduit connections.

In various embodiments of the printhead unit, each of the plurality of interchangeable printhead units can have a unique identification or identification code. For various embodiments, an identification or identification code can be physically indicated on the printhead unit and electronically associated with each of the printhead units. For various embodiments of the printhead unit, the identification or identification code can associate each unit with a unique set of operational information for each of the printhead units. For example, but not limited to, the unique operational information may include printing a unique portion of the printhead unit, an ink formulation contained in the printhead unit, and printing printhead calibration data in the maintenance module. This unique operational information can be stored on the memory device. For various embodiments, the memory device can be an onboard memory device that travels with each of the printhead units.

Various embodiments of the printhead unit can include a quick-coupling electrical interface plate that cooperates with the interface assembly of the printing system to easily interchange and interchange the mounting and clamping assembly. As part of a motion system for controlling the position of the print head unit relative to the substrate, various specific examples of mounting and clamping assemblies can be attached to the printing system. Additionally, various embodiments of the printhead unit in accordance with the present teachings can have an adapter plate manifold block assembly adjacent to the fluid manifold block. Various embodiments of the adapter plate manifold block assembly of the present teachings provide fluid communication between the fluid manifold block and the print head, and provide a print head assembly to the adapter plate manifold block assembly. Attached. Additionally, various specific examples of adapter plate manifold block assemblies can include mating surfaces for mounting the printhead unit into the mounting and clamping assembly. In various embodiments of industrial inkjet film printing systems, the mounting and clamping assembly provides for motion mounting of the printhead unit to an industrial inkjet film printing system, as well as providing strain free clamping. In other respects, various specific examples of mounting and clamping assemblies include a contactless air bearing assembly to stabilize the print head unit during installation and clamping procedures The ground is clamped into an industrial inkjet film printing system. Accordingly, various embodiments of the mounting and clamping assembly of the printhead unit assembly of the present teachings provide for unstrained and repeatable positioning of the printhead unit to the printing system.

1‧‧‧Electrical interface platen first surface

2‧‧‧Electrical interface platen

3‧‧‧Electrical interface platen second surface

4‧‧‧Spring thimble pad

5‧‧‧First ribbon cable connection

6‧‧‧First ribbon cable

7‧‧‧Second ribbon cable connection

8‧‧‧Second ribbon cable

9‧‧‧The first surface of the aerodynamic manifold block

10‧‧‧Aerodynamic manifold block

11‧‧‧The second surface of the aerodynamic manifold block

12‧‧‧vacuum port

14‧‧‧Inert gas port

16‧‧‧The third port of the pneumatic manifold block

17‧‧‧O-ring

20‧‧‧First Pneumatic Manifold Block Valve

22‧‧‧Second Pneumatic Manifold Block Valve

25‧‧‧First electrical connection platen support column

27‧‧‧Second electrical connection platen support column

29‧‧‧Marketing

30‧‧‧Fluid manifold block

31‧‧‧First surface of the fluid manifold block

32‧‧‧The first port of the fluid manifold block

33‧‧‧Second surface of the fluid manifold block

34‧‧‧The second port of the fluid manifold block

35‧‧‧O-ring

36‧‧‧The third port of the fluid manifold block

37‧‧‧O-ring

38‧‧‧The fourth port of the fluid manifold block

41‧‧‧The fifth port of the fluid manifold block

42‧‧‧The sixth port of the fluid manifold block

43‧‧‧Drainage tube

44‧‧‧First fluid manifold block valve

45‧‧‧ mouth

46‧‧‧Second fluid manifold block valve

47‧‧‧ mouth

48‧‧‧ Third fluid manifold block valve

49‧‧‧ mouth

50‧‧‧Primary distribution reservoir assembly

51‧‧‧First port of the primary dispensing reservoir

52‧‧‧Top of the primary dispensing reservoir

53‧‧‧Second port at the top of the primary dispensing reservoir

54‧‧‧Primary dispensing reservoir base

55‧‧‧Primary distribution reservoir body

56‧‧‧Second port for primary dispensing reservoir base

57‧‧‧First distribution port of the base of the reservoir

58‧‧‧The fourth port of the primary dispensing reservoir base

59‧‧‧The third port of the primary dispensing reservoir base

60‧‧‧Aerodynamic manifold block assembly

70‧‧‧ Large capacity ink reservoir assembly

71‧‧‧Lou adapter

72‧‧‧ Large capacity ink reservoir assembly top fittings

73‧‧‧Selection tube

74‧‧‧ vents

75‧‧‧ Large capacity ink reservoir body

76‧‧‧ mouth

77‧‧‧The first port of the large-capacity ink reservoir base

78‧‧‧ Large capacity ink reservoir base

79‧‧‧Second port of large capacity ink reservoir base

80‧‧‧Fluid manifold block assembly

90‧‧‧ First surface of the first adapter manifold assembly member

92‧‧‧Second surface of the first adapter manifold assembly member

95‧‧‧First channel components

97‧‧‧Second channel components

100‧‧‧ Adapter plate manifold block assembly

101‧‧‧O-ring

102‧‧‧ Adapter plate manifold manifold assembly first port

104‧‧‧ Adapter plate manifold manifold assembly second port

105‧‧‧O-ring

106‧‧‧ Adapter plate manifold manifold assembly third port

107‧‧‧O-ring

108‧‧‧ Adapter plate manifold manifold assembly fourth port

109‧‧‧O-ring

110‧‧‧The first channel of the fluid manifold block

112‧‧‧The third channel of the fluid manifold block

114‧‧‧First introducer

115‧‧‧1st component of the adapter manifold assembly

116‧‧‧Second introducer

117‧‧‧ Adapter manifold assembly second member

118‧‧‧Stainless steel ball

120‧‧‧Support structure assembly

122‧‧‧Big capacity ink reservoir top

123‧‧‧First print head unit identification plate

124‧‧‧First support member

125‧‧‧Second print head unit identification plate

126‧‧‧Second support member

127‧‧‧ traction latch

128‧‧‧Support structure assembly handle

130‧‧‧First fluid manifold block

132‧‧‧First port of fluid manifold block assembly

134‧‧‧The second port of the fluid manifold block assembly

136‧‧‧The third port of the fluid manifold block assembly

138‧‧‧Fluid manifold block assembly fourth port

140‧‧‧Second fluid manifold block

141‧‧‧Fluid manifold block assembly fifth port

142‧‧‧Fluid manifold block assembly sixth port

143‧‧‧Drainage tube

144‧‧‧First fluid manifold block valve

145‧‧‧First Fluid Manifold Block Valve Manifold

146‧‧‧Second fluid manifold block valve

148‧‧‧ Third fluid manifold block valve

149‧‧‧Second fluid manifold block valve manifold

150‧‧‧Primary distribution reservoir assembly

154‧‧‧Primary dispensing reservoir base

156‧‧‧Second port for primary dispensing reservoir base

157‧‧‧First distribution port of the base of the reservoir

158‧‧‧The fourth port of the primary dispensing reservoir base

159‧‧‧The third port of the primary dispensing reservoir base

160‧‧‧Level indicator assembly

162‧‧‧First Level Indicator/Upper Primary Dispensing Reservoir Assembly Level Indicator

163‧‧‧First level indicator bracket

164‧‧‧Second level indicator/middle primary dispensing reservoir assembly level indicator

165‧‧‧Second level indicator bracket

166‧‧‧ Lower primary dispensing reservoir assembly level indicator

168‧‧‧ Large capacity ink reservoir level indicator

170‧‧‧ Large capacity ink reservoir assembly

177‧‧‧The first port of the large-capacity ink reservoir base

178‧‧‧ Large-capacity reservoir assembly base channel member

180‧‧‧Modified Fluid Manifold Block Assembly

182‧‧‧ primary dispensing reservoir base channel

184‧‧‧ Large-capacity reservoir assembly base channel

185‧‧‧ Large capacity ink reservoir base

186‧‧‧ Large-capacity ink reservoir base channel

192‧‧‧First fluid manifold block channel

194‧‧‧First channel of adapter plate manifold block

196‧‧‧Second fluid manifold block channel

198‧‧‧The second channel of the adapter plate manifold block

200‧‧‧End user selected print head assembly/printing head

201‧‧‧Printing head assembly first PCB interconnection

203‧‧‧Printing head assembly second PCB interconnection

205‧‧‧Printing nozzle

210‧‧‧Printing head assembly/printing head

220‧‧‧Printing head assembly/printing head

230‧‧‧Printing head assembly/printing head

240‧‧‧Printing head assembly/printing head

250‧‧‧Printing nozzle

300‧‧‧Installation and clamping assembly

310‧‧‧ introducer

320‧‧‧First guiding frame

330‧‧‧Second guiding frame

340‧‧‧Base plate

342‧‧‧ openings

343‧‧‧ mouth

344‧‧‧Connector

346‧‧‧Local waste container

348‧‧‧Sport V-groove mounting table

350‧‧‧Base plate support arm

352‧‧‧First support column

354‧‧‧second support column

400‧‧‧Air bearing assembly

410‧‧‧Air bearing knurling knob

420‧‧‧Air bearing shaft parts

430‧‧‧Air bearing disc

440‧‧‧Air bearing gas supply port

460‧‧‧Air bearing support arm

500‧‧‧Interface assembly

510‧‧‧First interface assembly valve

515‧‧‧vacuum connection

520‧‧‧Second interface assembly valve

525‧‧‧ Connection to a gas source (such as an inert gas source)

530‧‧‧ Pulling the latch lip

540‧‧‧Spring thimble array

550‧‧‧First interface assembly hinge

551‧‧‧First interface assembly hinge slot

552‧‧‧Second interface assembly hinge

553‧‧‧Second interface assembly hinge slot

600‧‧‧ Cover Station Assembly

610‧‧‧ Cover Station

615‧‧‧Electrical and vacuum connections

620‧‧‧ Cover Station

625‧‧‧Electrical and vacuum connections

630‧‧‧ Cover Station

635‧‧‧Electrical and vacuum connections

640‧‧‧ Cover Station

645‧‧‧Electrical and vacuum connections

650‧‧‧ Cover Station

655‧‧‧Electrical and vacuum connections

1000‧‧‧Printing head unit

1000-I‧‧‧Printing head unit

1000-II‧‧‧Printing head unit

1000-III‧‧‧Printing head unit

1000-IV‧‧‧Printing head unit

1000-V‧‧‧Printing head unit

1054‧‧‧Substrate floating table

1058‧‧‧Substrate

1070‧‧‧Base

1079‧‧‧Bridge

1080‧‧‧First print nozzle assembly

1081‧‧‧Second print head assembly

1082‧‧‧Multiple print head devices

1084‧‧‧First print head assembly enclosure

1085‧‧‧Second print head assembly enclosure

1090‧‧‧First print head assembly positioning system

1091‧‧‧Second print head assembly positioning system

1092‧‧‧First X-axis bracket

1093‧‧‧Second X-axis mobile tablet

1094‧‧‧First Z-axis mobile tablet

1095‧‧‧Second Z-axis mobile tablet

1200‧‧‧Printing head unit

1210‧‧‧Printing head unit housing

1220‧‧‧Printing head unit bottom support plate

1250‧‧‧First Maintenance System Assembly

2000‧‧‧OLED inkjet printing system

2100‧‧‧Gas enclosure assembly and system

2130‧‧‧Gas purification circuit

2131‧‧‧Export pipeline

2132‧‧‧Solvent removal components

2133‧‧‧Inlet pipeline

2134‧‧‧Gas purification system

2140‧‧‧ Thermal Regulation System

2141‧‧‧Freezer

2143‧‧‧ Fluid outlet pipeline

2145‧‧‧ fluid inlet line

2169‧‧‧ Pressurized inert gas recirculation system

2500‧‧‧ gas enclosure assembly

FMAV1‧‧‧ valve

FMAV2‧‧‧ valve

FMAV3‧‧‧ valve

I‧‧‧ self-contained print head unit

IA‧‧‧Aerodynamic manifold block assembly

IB‧‧‧Fluid manifold block assembly

IC‧‧‧Primary Dispensing Reservoir

ID‧‧‧Big capacity ink reservoir

IE‧‧‧printing nozzle

II‧‧‧External system

IIA‧‧‧Inert gas source

IIB‧‧‧vacuum source

III‧‧‧External systems

IIIA‧‧‧Local waste collector

ILx‧‧‧ level indicator

IMx‧‧‧ level indicator

IUx‧‧‧ level indicator

PMAV1‧‧‧ valve

PMAV2‧‧‧ valve

1 is a block diagram of a printhead unit of various embodiments of a printhead unit in accordance with the present teachings depicting associated pneumatic control and waste assemblies.

2 is a perspective view of a printhead unit of various embodiments of a printhead unit in accordance with the present teachings.

3A-3C are exploded views of a printhead unit of various embodiments of a printhead unit in accordance with the present teachings.

4A-4D depict various views of fluid manifold blocks in various embodiments of printing head units in accordance with the present teachings.

Figure 5 is a perspective view of a printhead unit of various embodiments of a printhead unit in accordance with the present teachings.

6 is a perspective view of various manifold assemblies of a printhead unit in accordance with the present teachings.

7 is an exploded perspective view of various manifold assemblies in accordance with various embodiments of the printhead unit of the present teachings.

8 is a schematic illustration of a fluid design for preventing trapping of air bubbles in an ink delivery line in accordance with various embodiments of the printhead unit of the present teachings.

9 is a cross-sectional view of various manifold assemblies in accordance with various embodiments of the printhead unit of the present teachings.

10 is an enlarged cross-sectional view of an ink manifold assembly in accordance with various embodiments of the printhead unit of the present teachings.

Figure 11 is a schematic representation of a printhead assembly including a plurality of printheads.

12A and 12B are perspective views depicting a print head assembly including a plurality of print heads.

Figure 13A is an exploded view of a printhead assembly and mounting station assembly in accordance with various embodiments. Figure 13B is a top plan view of a printhead unit mounted in a mounting station assembly in accordance with various embodiments. Figure 13C is a bottom plan view of a printhead assembly in accordance with various embodiments.

Figure 14 is a perspective view of a printhead unit mounted and clamped in a mounting station assembly in accordance with various embodiments.

15 is a perspective view of an interface assembly of an inkjet printing system in accordance with various embodiments depicting attachment to a printhead unit.

Figure 16 is a perspective view of a print head unit cover station in accordance with various embodiments.

17 is a perspective view of a printing system that utilizes various printing head units in accordance with various embodiments of the printing head unit of the present teachings.

18 is a schematic representation of a gas enclosure assembly and system that can accommodate various printing systems that utilize various printhead units in accordance with various embodiments of the present invention.

1 is a schematic representation depicting some aspects of various embodiments of a self-contained printhead unit in accordance with the present teachings. 1 depicts a printhead unit I in accordance with various embodiments; with respect to pneumatic inputs, such as vacuum and inert gases; designated as an external system II; and with respect to fluid outputs, such as local and external waste assemblies; For external system III. For various embodiments of the self-contained printhead unit I, the pneumatic manifold block assembly IA can provide, for example, but not limited to, a primary dispensed reservoir IC with various external sources that require pneumatic control (such as inertia) Fluid distribution and control between gas source IIA and vacuum source IIB). In various embodiments of the self-contained printhead unit in accordance with the present teachings, the pneumatic manifold block assembly IA can dispense the reservoir IC with various pneumatic sources, for example, via valves PMAV ₁ and PMAV ₂ Provide control between. According to various embodiments of the self-contained print head unit I, the fluid manifold block assembly IB can demonstrate fluid distribution to, for example, but not limited to, the primary dispense reservoir IC and the bulk ink reservoir ID control. In various examples of a self-contained unit of the printing head of the present teachings, the fluid manifold assembly block IB may be (e.g.) is controlled by a valve FMAV ₁ between the reservoir and the print head IC IE dispensing of the primary Fluid communication. According to various embodiments of the self-contained print head unit of the present teachings, the fluid manifold block assembly IB can control the primary dispense reservoir IC and the high volume ink reservoir ID, for example, via the valve FMAV ₂ Fluid communication. For the teachings of the present self-contained print head unit of various specific examples, a fluid manifold assembly block IB may be (e.g.) to control the print head between the IE and the local waste reservoir through a valve IIIA FMAV ₃ Fluid communication. Various specific examples of the self-contained print head assembly of the present teachings can have a primary dispense reservoir IC and a large capacity ink reservoir ID, each of which includes a plurality of level indicators; such as IL _X , IM _X And IU _X. Various embodiments of the self-contained print head unit according to the present teachings may have various liquid level indicators for the primary dispensing reservoir IC and the large capacity ink reservoir ID, and the large capacity ink reservoir ID is used. A portion of an automated system that maintains a constant volume of ink in the primary dispensed reservoir IC; thereby maintaining a constant pressure for the ink supplied to the printhead IE.

For various embodiments of the self-contained printhead unit I of Figure 1, the high volume ink supply assembly ID can provide sufficient ink volume to keep the primary dispensed reservoir assembly IC filled to the defined print program for the entire printing process. Fill level. As will be discussed in more detail later, connections to pneumatic inputs, such as vacuum sources and gas sources (such as inert gas sources) of external system II, and electrical connections can be attached to various embodiments using interface assemblies. Various specific examples of the print head unit I are printed. In accordance with various embodiments of the printhead unit assembly of the present teachings, the interface assembly can have complementary fastness in conjunction with a quick coupling feature for providing electrical interconnections and pneumatic interconnections for various embodiments of the printhead unit I. The coupling features permit a plurality of self-contained printhead units of the present teachings, such as but not limited to, to be easily interchanged and swapped out of the printing system during the printing process. In addition, as will be discussed later, with external waste assemblies (eg in external systems) Various embodiments of the present end waste assembly for fluid communication are provided in III to provide ease of interchangeability of the plurality of self-contained print head units of the present teachings into and out of the printing system during the printing process.

Various embodiments of the printhead unit 1000 of FIG. 2 can have a fluid system including a pneumatic manifold block assembly 60, a fluid manifold block assembly 80, and an adapter plate manifold block assembly 100.

For various embodiments of the printhead unit 1000 of FIG. 2, the fluid system can include a pneumatic manifold block assembly 60. The pneumatic manifold block assembly 60 can include a pneumatic manifold block 10, as well as a first pneumatic manifold block valve 20 and a second pneumatic manifold block valve 22. Pneumatic manifold block valve 60 may include fluid interconnections to a gas source, such as an inert gas source, and interconnections to a vacuum source, and additionally including distribution and control via pneumatic manifold block 10 to primary dosing The fluid reservoirs of the reservoir assembly 50 are interconnected. The pneumatic manifold block 10 can have a passageway fabricated therein and can be configured with ports to communicate with various manifold assemblies such as, but not limited to, manifolds, valves, reservoirs, vacuum sources, and gas sources, such as, Inert gas source.

Various specific examples of the pneumatic manifold block 10 of FIG. 2 having the first surface 9 and the second surface 11 can include a first manifold valve 20 (not shown) and a second valve 22 for the pneumatic manifold block. As mentioned previously, the pneumatic manifold block 10 can be equipped with ports to communicate with various pneumatic manifold assemblies of the pneumatic manifold block assembly 60 such as, but not limited to, manifolds, valves, reservoirs, vacuum sources, And a gas source such as, but not limited to, a gas source such as an inert gas source. Various embodiments of the pneumatic manifold block 10 can have a vacuum port 12 and an inert gas port 14 to provide a port for communication with a vacuum source and a source of gas such as, but not limited to, an inert gas source. In various embodiments of the printhead unit 1000, the O-ring seal for the vacuum port 12 and the inert gas port 14 provides a printhead unit in conjunction with the design of the interface assembly that is part of the printing system. A quick coupling pneumatic connection between the 1000 and the printing system. For various embodiments of the printhead unit 1000, an electrical interface board 2 can be mounted to the pneumatic manifold block 10. The electrical interface platen 2 can include, for example but without limitation, a spring-loaded thimble Various types of quick coupling electrical connections of pogo pin coupling, wherein the electrical interface platen 2 can have a spring-loaded thimble pad 4 on the first surface 1 of the electrical interface platen for self-printable systems A portion of the interface assembly houses a spring-loaded ejector array, and the printhead unit 1000 can be a component of the printing system.

For various embodiments of the printhead unit 1000, the quick coupling feature provided by the following provides for easy interchangeability of the plurality of self-contained printhead units 1000 and the printing system during the printing process: electrical interface table The O-ring seal of the plate 2, the vacuum port 12 and the inert gas port 14, the pneumatic manifold block 10 which provides easy integration with the interface assembly, and the motion mounting and air bearing clamping of the print head unit 1000 This will be discussed in more detail later. In accordance with the present teachings, the quick coupling accessory can be any accessory designed for a regularly moving component and provides easy movement of the component. Thus, it is generally understood by those skilled in the art that any of a variety of electrical, pneumatic, and fluid couplings can be used in the specific example of the printhead unit 1000 and the interface assembly that provides complementary connectivity to provide The ease of interchangeability of a plurality of self-contained print head units 1000 with a printing system.

For various embodiments of the printhead unit 1000 of FIG. 2, the fluid system can include a fluid manifold block assembly 80. The fluid manifold block assembly 80 can include a fluid manifold block 30, as well as a first fluid manifold block valve 44, a second fluid manifold block valve 46, and a third fluid manifold block valve 48. The fluid manifold block assembly 80 can include a fluid interconnect to the bulk ink reservoir assembly 70 that can be dispensed with the primary via the distribution and control provided by the fluid manifold block 30. The reservoir assembly 50 is in fluid communication. The fluid manifold block 30 can have a passageway fabricated therein and can be configured with ports to communicate with various manifold assemblies such as, but not limited to, manifolds, valves, reservoirs, and waste assemblies.

Various specific examples of the fluid manifold block 30 of FIG. 2 having a first surface 31 and a second surface 33 can include a first fluid manifold block valve 44, a second fluid, shown here mounted on the first surface 31. Manifold block valve 46 and third fluid manifold block valve 48. As previously It is discussed that the fluid manifold block 1000 can be equipped with ports to communicate with various manifold assemblies such as, but not limited to, valves, reservoirs, inkjet printheads, waste assemblies, and manifolds. The fluid manifold block 30 can be in fluid communication with a primary dispense reservoir, which can include a primary dispense reservoir body 55, a primary dispense reservoir top (not shown), and a primary application The reservoir base 54 is provided. Various specific examples of the primary dispensing reservoir can have a first level indicator 162 and a second level indicator 164 associated therewith that define a maximum fill level and a minimum fill level, respectively. For various embodiments of the printhead unit 1000, the fluid manifold block 30 can be in fluid communication with at least one end user selected print head assembly 200, and at least one end user can select the print head assembly 200. Fluid communication is provided for the drain tube 43 of the waste system. Depending on various embodiments of the printhead unit 1000, the drain tube 43 can be part of a waste assembly for dispensing ink that provides a contactless integration of the waste system with the printhead unit 1000.

As depicted in FIG. 2, a specific example of a high volume ink reservoir assembly 70 can include a bulk ink reservoir body 75. In various embodiments, the high volume ink reservoir body 75 can be covered with a bulk ink reservoir top 122 to which the bulk ink reservoir top 122 can be attached. The bulk ink reservoir body 75 can be covered with a fitting (not shown) including a vent 74 and a port 76 that is shown fitted with a luer adapter 71. The luer adapter 71 can provide ease of filling the bulk ink reservoir body 75, such as, but not limited to, using a syringe; manually or with a robot, where any end user selects ink for printing on the substrate. The bulk ink reservoir substrate 78 can provide a bottom seal and a port connection to the fluid manifold block 30. The high volume ink reservoir assembly 70 can be in fluid communication with the primary dispense reservoir assembly 50 in accordance with various embodiments of the self-contained printhead unit 1000. The bulk ink reservoir assembly 70 can provide sufficient ink volume to maintain the primary dispense reservoir assembly 50 to a defined fill level for the entire printing process. This continuous replenishment of a constant volume is caused in the primary dispensing reservoir to maintain a constant nozzle pressure throughout the printhead. Print here During the sequence, a plurality of easily interchangeable self-contained print head units 1000 can be used. Having a secondary reservoir system in various embodiments of the printhead unit 1000 can help provide ease of interchangeability of the plurality of printhead units 1000 by eliminating the conduit connection to the ink supply external printhead unit 1000. In addition, providing a self-contained ink supply for a plurality of interchangeable printhead units 1000 prevents cross-contamination of selected inks contained by the various end users contained in the plurality of self-contained printhead units 1000. According to various embodiments of the printhead unit 1000, the quick coupling conduit connection provides for easy interchangeability of the printhead unit 1000 with the ink supply external printhead unit 1000.

For various embodiments of the printhead unit 1000 of FIG. 2, the fluid system can include an adapter plate manifold block assembly 100. The adapter plate manifold block assembly 100 can provide fluid communication between the fluid manifold block 30 and the print head 205 of the print head assembly 200, and provide a mounting surface for the end user to select the print head assembly Various embodiments of the print head unit (such as print head assembly 200) are mounted to the present teachings. Depending on various embodiments of the printhead unit 1000, the adapter manifold assembly 100 can have a adapter manifold assembly first member 115 that can provide structural connectivity as well as Fluid reversal between the fluid manifold block 30 and the adapter plate manifold block assembly 100. Depending on various embodiments of the printhead unit 1000, the adapter manifold assembly 100 can have a adapter manifold assembly second member 117 that can provide structural connectivity as well as Fluid reversal between the adapter plate manifold block assembly 100 and the printhead assembly 200.

In various embodiments of the printhead unit 1000, the adapter manifold assembly first member 115 can provide mounting surfaces for the first introducer 114 and the second introducer 116, as well as for a set Mounting surface of stainless steel ball (not shown). The first introducer 114 and the second introducer 116 can be attached to the adapter manifold assembly first member 115 to act as an introducer during positioning of the printhead unit 1000 into the motion mount assembly. As will be discussed in more detail later, a set of stainless steel balls mounted on the second surface 92 of the first adapter manifold assembly member is a sports mounting assembly. Part of it. As previously discussed, for various embodiments of the self-contained printhead unit 1000, the electrical quick coupling assembly and the pneumatic quick coupling assembly and the motion mounting assembly provide for easy printing of the plurality of print head units 1000 during the printing process. Some of the interchangeable components.

A more detailed view of various embodiments of the printhead unit 1000 is shown in FIGS. 3A through 3C, which show a partial, intermediate, and lower exploded view of the printhead unit 1000.

FIG. 3A depicts an exploded view of an upper portion of the printhead unit 1000, which may include a pneumatic manifold block assembly 60, in accordance with various embodiments. The electrical interface platen 2 has a spring-loaded thimble pad 4 on the first surface 1 for receiving a spring-loaded thimble array. As mentioned previously, the spring-loaded thimble connection can be an electrical quick-coupled connection, which is provided with a plurality of print head units 1000 in conjunction with a head-coupled mating port that utilizes an O-ring connection as a pneumatic quick-coupled connection. Components that are easy to interchange. Additionally, a first ribbon cable connection 5 on the second surface 3 of the electrical interface deck 2 can be used for the connection of the first ribbon cable 6, the first ribbon cable 6 being connected to the print shown in Figure 3C. The showerhead assembly has a first PCB interconnect 201. Similarly, a second ribbon cable connection 7 (not shown) on the second surface 3 of the electrical interface platen 2 can be used for the connection of the second ribbon cable 8, and the second ribbon cable 8 is connected to The print head assembly shown in Figure 3C is a second PCB interconnect 203.

Various embodiments of the pneumatic manifold block 10 may provide a pair of, for example, but not limited to, a vacuum source and a gas source (such as, but not limited to, an inert gas source) to the printhead unit 1000 as shown in the top exploded view of FIG. 3A. Interconnection and control of the gas source). It will be appreciated by those skilled in the art of inkjet printing that a portion of the vacuum can typically be applied over the ink reservoir to counteract the ink supplied to the printhead produced by the reservoir above the printhead. pressure. In various embodiments of the printhead unit 1000, the first aerodynamic manifold block valve 20 of the pneumatic manifold block 10 can control both a gas source (such as an inert gas source) and the primary dispensed reservoir assembly of FIG. Fluid distribution and control between 50, in turn, controls fluid distribution and control between the second pneumatic manifold valve 22 and the primary dispensed reservoir assembly 50 of FIG. In addition, the pneumatic manifold block 10 The second pneumatic manifold block valve 22 controls the communication between the first pneumatic manifold block valve 20 and the vacuum source. Various embodiments of the pneumatic manifold block 10 as shown in FIG. 3A may be provided with ports for communicating with the primary dispense reservoir assembly 50 on the second surface 11. As depicted in FIG. 3A, the pneumatic manifold block third port 16 can be in fluid communication with the primary dispensed reservoir assembly 50 via a primary dispensed reservoir top 52 having a first port 51, wherein aerodynamic differential The tube block third port 16 and the primary dispensing reservoir first port 51 are sealed using an O-ring 17. According to various embodiments as depicted in FIG. 3A, the pneumatic manifold block 10 can have a first electrical connection platen support column 25 and a second electrical connection platen support column 27 for mounting the electrical interface platen 2, respectively. The guide pin 29 facilitates the attachment of the printhead unit 1000 to the interface assembly in accordance with various embodiments of the printhead unit 1000, which interface assembly will be discussed in greater detail below. In various embodiments of the pneumatic manifold block 10, valves such as valves 20 and 22 can be, for example, but not limited to, solenoid valves. For various embodiments of the pneumatic manifold block 10, the valves 20 and 22 can be integrated into the manifold block without a conduit connection. In various embodiments of the pneumatic manifold block 10, the valves 20 and 22 can be integrated into the manifold block using a conduit connection.

FIG. 3B depicts an exploded view of a portion of the printhead unit 1000 in accordance with various embodiments of the printhead unit assembly, which may include a fluid manifold block assembly 80. The fluid manifold block assembly 80 can include a fluid manifold block 30 that can be equipped with ports for use with various fluid manifold assemblies for fluid distribution and control, such as, but not limited to, primary dispensed reservoirs The assembly 50, the large capacity ink reservoir assembly 70, the print head assembly 200 (Fig. 2), and the waste assembly, the drain tube 43 can be a component of the waste assembly. Various embodiments of the fluid manifold block 30 can have a fluid manifold block first port 32 on the first surface 31 and a fluid manifold block second port 34 on the second surface 33, the ports Fluid communication between the primary dispense reservoir assembly 50 and the printhead assembly 200 (Fig. 2) is provided. To control fluid communication between the primary dispensing reservoir assembly 50 and the printhead assembly 200, various embodiments of the fluid manifold block 30 can be provided with ports to provide valve control via the valve 44, such as It is depicted by port 45. Fluid manifold Various embodiments of block 30 may have a fluid manifold block third port 36 on first surface 31 and a fourth port 38 on first surface 31 that provides primary dispensed reservoirs The fluid assembly 50 is in fluid communication with the bulk ink reservoir assembly 70. To control fluid communication between the primary dispense reservoir assembly 50 and the bulk ink reservoir assembly 70, various embodiments of the fluid manifold block 30 may be provided with ports to provide valve control using the valve 46, As depicted by port 47. Various embodiments of the fluid manifold block 30 can have a fluid manifold block fifth port 41 on the second surface 33 that provides a print head assembly 200 (Fig. 2) and a primary dispense reservoir total Fluid communication between 50 is used for ink return, and the fluid manifold block fifth port 41 can be in fluid communication with the fluid manifold block sixth port 42 on the second surface 33 of the fluid manifold block 30. The sixth manifold port 42 of the fluid manifold block can be in fluid communication with the waste assembly, which can be part of the waste assembly, which will be discussed later in more detail. To control the fluid communication between the printhead assembly 200 (FIG. 2) and the primary dispense reservoir assembly 50 for ink return to the waste assembly, various specific examples of the fluid manifold block 30 can be loaded. There is a port to provide valve control using valve 48, as depicted by port 49. In various embodiments of the fluid manifold block 30, valves such as valves 44, 46, and 48 can be, for example, but not limited to, solenoid valves. For various embodiments of the fluid manifold block 30, the valves 44, 46, and 48 can be integrated into the manifold block without a conduit connection. In various embodiments of the specific example of fluid manifold block 30, valves 44, 46, and 48 can be integrated into the manifold block using a conduit connection.

In various embodiments of the printhead unit 1000 as depicted in FIG. 3B, there may be a fluid manifold block 30 that may include a primary dispense reservoir assembly 50 mounted thereon. The primary dispensing reservoir assembly 50 can include a primary dispensing reservoir body 55 that can be sealed at one end by a primary dispensing reservoir top 52 and at the other end by a primary application The reservoir base 54 is sealed. The primary dispensing reservoir top 52 can have a primary dispensing reservoir top second port 53 and the primary dispensing reservoir top second port 53 can be in communication with the primary dispensing reservoir first port 51. As mentioned previously, the primary dispensing reservoir first port 51 can be aerodynamically The tube block 10 (Fig. 3A) is connected. In various embodiments of the primary dispense reservoir assembly 50, the primary dispense reservoir base first port 57 can be in fluid communication with the primary dispense reservoir base second port 56. As depicted in FIG. 3B, the O-ring 35 forms a seal between the primary dispensing reservoir base second port 56 and the fluid manifold block first port 32. Various specific examples of the primary dispensing reservoir assembly 50 can have a primary dispensing reservoir base third port 59, and a primary dispensing reservoir base third port 59 can be associated with the primary dispensing reservoir base The four port 58 is in fluid communication. As depicted in FIG. 3B, the O-ring 37 forms a seal between the primary dispensing reservoir base fourth port 58 and the fluid manifold block third port 36.

As previously discussed, the fluid manifold block 30 can be equipped with a port to provide fluid distribution and control between the primary dispense reservoir assembly 50 and the bulk ink reservoir assembly 70, a large capacity ink reservoir. Assembly 70 can have a large capacity ink reservoir assembly top fitting 72. The bulk ink reservoir assembly top fitting 72 can include a vent 74, a port 76, and a dip tube 73 that can be in fluid communication with the port 76. The luer adapter 71 assembled into the port 76 and the dip tube 73 provide ease of filling the bulk ink reservoir assembly 70 with ink selected by any end user for printing on the substrate. The high capacity ink reservoir assembly can have a substrate 78 that includes a bulk ink reservoir substrate first port 77 and a bulk ink reservoir substrate second port 79. As depicted in Figure 3B, the O-ring 37 forms a seal between the high volume ink reservoir base second port 79 and the fluid manifold block fourth port 38. As previously discussed, the high volume ink reservoir assembly 70 can provide sufficient ink volume to maintain the primary dispense reservoir assembly 50 to a defined fill level for the entire printing process.

Various embodiments of the printhead unit 1000 can have various specific examples of the support structure assembly 120, as depicted in FIG. 3B. The support structure assembly 120 can include a first support member top 122 that can be attached to the first support member 124 and can cover the bulk ink reservoir assembly 70. Various specific examples of support structure assembly 120 can additionally include a second support member 126 mountable between pneumatic manifold block 10 and fluid manifold block 30. Support knot The assembly handle 128 can be attached to the second support member 126 and provide manual or robotic manipulation of the printhead unit 1000. A draw latch 127 can be part of an attachment structure for attaching the printhead unit 1000 to the interface assembly.

Additionally, the level indicator assembly 160 for the primary dispensing reservoir assembly 50 can include a first level indicator bracket 163 and a second level indicator bracket 165 that can be attached To the bracket mounting table 161. A bracket mounting table 161 can be mounted between the pneumatic manifold block 10 (FIG. 2) and the fluid manifold block 30. For various specific examples of the printhead unit 1000 for the primary dispensing reservoir assembly 50, the first level indicator bracket 163 can support the first level indicator 162, the first level indicator 162 being available To determine the upper fill level. The second level indicator bracket 165 can support a second level indicator 164 that can be used to indicate a minimum fill level. In various embodiments of the printhead unit of the present teachings, the function of the level indicator for the primary dispensing reservoir assembly 50 can provide for continuous replenishment of fluid via automated sensing and control to A constant fluid level is provided in the primary dispense reservoir assembly 50. Control of the fluid level in the primary dispensed reservoir assembly 50 provides control of the pressure of the ink supplied to the printhead, which may be in fluid communication with the primary dispensed reservoir assembly 50.

For various specific examples of the print head unit 1000 of FIG. 3B, the first print head unit identification plate 123 and the second print head unit identification plate 125 can be mounted on the pneumatic manifold block as shown in FIG. 2 for various specific examples. 10, or for various specific examples, can be mounted on the second support member 124 as depicted in Figure 3B. The first print head unit identification plate 123 and the second print head unit identification plate 125 can be mounted anywhere on the print head unit 1000, wherein the identification plates can be seen by the end user, or wherein the identification The slab can be read by a machine or robot adapted to read the identification slabs. As mentioned previously, various embodiments of the printhead unit 1000 have an identification or identification code that can be physically indicated on the printhead unit and electronically associated with each of the printhead units. For various specific examples of print head units, identification or identification codes can be used for each unit and for each print jet One of the head units is associated with a unique operational information. For example, but not limited to, the only operational information may include a unique portion of the maintenance module when the maintenance module is not engaged in the printing system, an ink formulation contained in the print head unit, and a print head calibration data. This unique operational information can be stored on the memory device. For various embodiments, the memory device can be an onboard memory device that travels with each of the printhead units. In various embodiments, the first printhead unit identification plate 123 can have text characters, numeric characters, and alphanumeric characters selected to associate the printhead unit 1000 with, for example, but not limited to, ink type and calibration material. Character recognition. For various embodiments, the second printhead unit identification plate 125 can have text characters, numeric characters selected from the position of the print head unit 1000 associated with, for example, but not limited to, a maintenance or cover station. Identification of alphanumeric characters. In various embodiments, the identification or identification code includes one or more machine readable codes, such as one or more identification or identification codes embodied in one or more barcodes or one or more radio frequency identification or RFID tags.

FIG. 3C depicts an exploded view of the lower portion of the printhead unit 1000 in accordance with various embodiments. The adapter plate manifold block assembly 100 provides fluid communication between the fluid manifold block 30 and the print head 205 of the print head assembly 200, and provides a mounting surface for the end user to select the print head assembly ( For example, the print head assembly 200) is mounted to various embodiments of the print head unit of the present teachings. Depending on various embodiments of the printhead unit 1000, the adapter manifold assembly 100 can have a adapter manifold assembly first member 115 that can provide structural connectivity as well as Fluid reversal between the fluid manifold block 30 and the adapter plate manifold block assembly 100. Depending on various embodiments of the printhead unit 1000, the adapter manifold assembly 100 can have a adapter manifold assembly second member 117 that can provide structural connectivity as well as Fluid reversal between the adapter plate manifold block assembly 100 and the printhead assembly 200.

Various embodiments of the adapter manifold assembly first member 115 of FIG. 3C can have a first adapter manifold assembly member first surface 90, a first adapter manifold assembly member first surface 90 A mounting surface is provided to mount the fluid manifold block 30, and a port is provided to provide fluid communication between the fluid manifold block 30 and the first adapter manifold assembly member first surface 90. Various embodiments of the adapter manifold assembly first member 115 of FIG. 3C can have a first adapter manifold assembly member second surface 92, and the adapter manifold assembly second member 117 can be self-contained The adapter manifold assembly member second surface 92 hangs down. Various embodiments of the adapter manifold assembly second member 117 can include a first mounting surface 94, a second mounting surface 96, and a bottom surface 98, and a first channel member 95 (having a first passageway made therethrough) And a second channel member 97 (having a second passage made therethrough).

For various embodiments of the adapter plate manifold block assembly 100, the first adapter manifold assembly member first surface 90 can have a adapter plate manifold block assembly first port 102 and adapter The planar manifold block assembly has a second port 104 that is located on the bottom surface 98 of the adapter manifold assembly second member 117. The adapter plate manifold block assembly first port 102 can be in fluid communication with the adapter plate manifold block assembly second passage 104 through a first passage in the first channel member 95. The adapter plate manifold block assembly second port 104 can be in fluid communication with the print head inlet port (not shown) of the print head 205, the print head inlet port and the print head 205 The print nozzle outlet port (not shown) is in fluid communication. As depicted in FIG. 3C, the O-ring 101 can form a seal between the adapter plate manifold assembly first port 102 and the fluid manifold block second port 34, and the O-ring 105 can be mated. A seal is formed between the second port 104 of the plate manifold block assembly and the print nozzle inlet port (not shown) of the print head 205. In various embodiments of the adapter plate manifold block assembly 100, the print nozzle outlet port (not shown) of the print head 205 can be coupled to the adapter plate manifold block assembly third port 106. In fluid communication, the adapter plate manifold block assembly third port 106 is located on the bottom surface 98 of the adapter manifold assembly second member 117. According to various specific examples of the adapter plate manifold block assembly 100, the adapter plate manifold block assembly third port 106 can pass through the second channel of the second channel member 97 to the adapter plate manifold region Block assembly fourth port 108 for fluid connection through. The adapter plate manifold block assembly fourth port 108 can be in fluid communication with the fluid manifold block fifth port 41. As depicted in FIG. 3C, the O-ring 107 can form a seal between the third port 106 of the adapter plate manifold block assembly and the print nozzle outlet port (not shown) of the print head 205, and The O-ring 109 can form a seal between the adapter plate manifold manifold assembly fourth port 108 and the fluid manifold block fifth port 41.

As previously discussed with reference to Figures 3A-3C, various manifold assembly assemblies can be coupled to manifold blocks, such as pneumatic components, such as, but not limited to, by complementary ports that are sealed with O-ring seals. A vacuum or gas source (such as an inert gas source), a reservoir, a valve, a print head, a waste assembly, another manifold, and the like. FIG. 4A illustratively shows a fluid manifold block first port 32 and a third port 36. 4B depicts a side view of a fluid manifold block 30 in accordance with various embodiments, indicating a fluid manifold block sixth port 42 that can be attached from the fluid manifold block sixth port 42 and using an O-type The ring seal is sealed. 4C shows a cross-sectional view as indicated in FIG. 4A and depicts a fluid manifold block first port 32 in fluid communication with the fluid manifold block first passage 110 and fluid with the fluid manifold block third passage 112. Connected fluid manifold block third port 36. As shown in FIG. 4C and in particular as shown in FIG. 4D, the ports on each manifold assembly and the ports on each of the pneumatic manifold block and the fluid manifold block have been machined to accept O-rings, It will be understood by those skilled in the art that the O-ring provides a tight seal to prevent fluid leakage.

Various embodiments of the self-contained printhead unit 1100 of FIG. 5 can have features similar to those described for the various specific examples of the printhead unit 1000 of FIG. For example, without limitation, various embodiments of the printhead unit 1100 of FIG. 5 may include a pneumatic manifold block assembly 60, a modular fluid manifold block assembly 180, and an adapter plate manifold block total. A fluid system of 100.

Various embodiments of the self-contained printhead unit 1100 of Figure 5 can have a pneumatic manifold block assembly 60 that can include a pneumatic manifold block 10 that can be mounted to aerodynamic manifolds On the block 10 . As previously described with respect to the printhead unit 1000 of Figure 2, the pneumatic manifold block 10 can have a passageway fabricated therein and can be configured with ports to communicate with various manifold assemblies, such as, but not limited to, manifolds, valves , a reservoir, a vacuum source, and a gas source, such as an inert gas source. The electrical interface platen 2 can include various types of quick coupling electrical connections that are coupled, such as, but not limited to, spring loaded thimbles. As previously described with respect to the printhead unit 1000 of FIG. 2, the quick coupling features provided by the electrical interface platen 2 and the pneumatic interface features of the pneumatic manifold block 10 are components of various specific examples of the printhead unit of the teachings. Some of them provide easy integration of various specific examples of print head units with interface assemblies.

As depicted in FIG. 5, various embodiments of the printhead unit 1100 can have a high capacity ink reservoir assembly 170 that can be in fluid communication with the primary dispense reservoir assembly 150. . The bulk ink reservoir assembly 170 can have a volume sufficient to provide continuous supply of ink to the primary dispense reservoir 150 throughout the progress of the printing process. For various embodiments of the printhead unit 1100 of Figure 5, the continuous supply of ink to the primary dispense reservoir assembly 150 maintains a constant volume in the primary dispense reservoir, and the primary dispense reservoir is printed The print head assembly 200 can be in fluid communication during the period. In other aspects, various embodiments of the printhead unit include at least one liquid level indicator for maintaining a defined fill level for the primary dispense reservoir. As depicted in FIG. 5, the level indicator assembly 160 for the primary dispensing reservoir assembly 150 and the bulk ink reservoir assembly 170 can include an upper primary dispensing reservoir assembly level indicator. 162. A central primary dispensing reservoir assembly level indicator 164, a lower primary dispensing reservoir assembly level indicator 166, and a bulk ink reservoir level indicator 168. With respect to the level indicator assembly 160 for the primary dispensing reservoir assembly 150, a first level primary dispensing reservoir assembly indicator 162 can be used to determine the upper fill level, the middle primary dispensing reservoir The injector assembly level indicator 164 can be used to indicate the target fill level, while the lower primary dispense reservoir assembly level indicator 166 can be used to determine the lower fill level. With respect to the level indicator assembly 160 for the high volume ink reservoir assembly 170, the high volume ink reservoir level indicator 168 can be used for large volume ink reservoirs. The assembly 170 indicates the target fill level. In various embodiments of the printhead unit of the present teachings, the function of the level indicator assembly 160 for the primary dispensing reservoir assembly 150 can provide automated sensing and control to provide fluid for primary dispensing. The replenishment of both the reservoir assembly 150 and the bulk ink reservoir assembly 170 continues.

As depicted in FIG. 5, various specific examples of printhead unit 1100 can have various specific examples of support structure assembly 120. The support structure assembly 120 can include a first support member top 122 that can be attached to the first support member 124 and can cover the bulk ink reservoir assembly 170. Various embodiments of the support structure assembly 120 can additionally include a second support member 126 that can be mounted to the pneumatic manifold block assembly 60 and the adapter plate manifold block for the print head unit 1100 A set of pillars between assemblies 100. The support structure assembly handle 128 can be attached to the pneumatic manifold block 10 and provides manual or robotic manipulation of the printhead unit 1100. The traction latch 127 can be part of an attachment structure for attaching the printhead unit 1000 to the interface assembly. In addition, as previously discussed with respect to various specific examples of the print head unit 1000 of FIG. 2, various specific examples of the print head unit 1100 can have a first print head unit identification plate 123 and a second print head unit identification plate 125. .

Various embodiments of the self-contained printhead unit 1100 of FIG. 5 can have a modular fluid manifold block assembly 180, and the modular fluid manifold block assembly 180 can include a high capacity ink reservoir assembly 170. The fluid is interconnected. The bulk ink reservoir assembly 170 can be in fluid communication with the primary dispense reservoir assembly 150 via the dispensing and control provided by the fluid manifold block 130. For various embodiments of the printhead unit 1100, the first fluid manifold block 130 can be in fluid communication with at least one end user selected printhead assembly 200 via the adapter plate manifold block assembly 100. In that regard, the first fluid manifold block 130 of the printhead unit 1100 can provide a constant ink supply to the printhead assembly 200. With respect to waste return, the printhead assembly 200 can be in fluid communication with the adapter plate manifold block assembly 100, which can be in fluid communication with the second fluid manifold block 140. Fluid manifold block 140 can include a drain tube 143. According to various embodiments of the printhead unit 1100, the drain tube 143 of the fluid manifold block 140 can be part of a waste assembly for dispensing ink that provides a waste system and print head unit 1100 Contactless integration.

Thus, various embodiments of the printhead unit 1100 of FIGS. 5-10 can utilize a modular fluid manifold block assembly that includes, for example, but is not limited to, modular fluid manifolds. The first fluid manifold block 130 and the second fluid manifold block 140 of the tube block assembly 180, the first fluid manifold block 130 and the second fluid manifold block 140 provide a fluid manifold region from the fluid manifold block assembly 80 The equivalent allocation and control provided by block 30 is as previously described.

FIG. 6 depicts a partial perspective view of various specific examples of a modular fluid manifold block assembly 180 mounted on an adapter plate manifold block assembly 100. The first fluid manifold block 130 can have various embodiments of the primary dispense reservoir base 154 to mount the primary dispense reservoir assembly (see Figure 3B). The primary dispense reservoir base 154 can have a primary dispense reservoir base first port 157 and a primary dispense reservoir base third port 159. The primary dispense reservoir base first port 157 can be in fluid communication with the first fluid manifold block valve 144, and the primary dispense reservoir base third port 159 can be in communication with the second fluid manifold block valve 146 Fluid communication. The high capacity ink reservoir assembly can have a large volume reservoir assembly base channel member 178, the bulk reservoir assembly substrate channel member 178 can be coupled to the primary dispense reservoir substrate 154 and the bulk ink reservoir Substrate 185 is in fluid communication. The bulk ink reservoir substrate 185 can have a large capacity ink reservoir substrate first port 177. Additionally, the high volume ink reservoir substrate 185 can be used to mount various embodiments of the large volume reservoir assembly (see Figure 3B). A second fluid manifold block valve 146 can be mounted to the underside of the bulk ink reservoir base 185. The second fluid manifold block 140 can have a third fluid manifold block valve 148, as well as a drain tube 143.

7 depicts an exploded perspective view, partially in perspective, of various embodiments of the modular fluid manifold block assembly 180 of FIG. As previously discussed, the primary dispense reservoir base 154 mounts various specific examples of primary dispense reservoir assemblies (see Figure 3B). Modular fluid manifold block total The first fluid manifold block 130 of 180 may have a primary dispense reservoir base 154, and the primary dispense reservoir base 154 may have a primary dispense reservoir base first port 157 and a primary dispense reservoir The base third port 159. As depicted in FIG. 7, for various specific examples of the first fluid manifold block 130 of the modular fluid manifold block assembly 180, the primary dispense reservoir base first port 157 and the primary dispense reservoir base The third port 159 can be in fluid communication with the primary dispense reservoir base second port 156 and the primary dispense reservoir base fourth port 158, respectively. The primary dispense reservoir base second port 156 can be in fluid communication with the first fluid manifold block valve 144 via the fluid manifold block assembly first port 132 in the first fluid manifold block valve manifold 145 . The fluid manifold block assembly first port 132 in the first fluid manifold block valve manifold 145 can be in fluid communication with the fluid manifold block assembly second port 134. The fluid manifold block assembly second port 134 can be in fluid communication with the print head via the adapter plate manifold block assembly 100. The primary dispense reservoir base fourth port 158 can be coupled to the bulk reservoir assembly base channel member via the fluid manifold block assembly third port 136 in the bulk reservoir assembly base channel member 178 178 is in fluid communication. The fluid manifold block assembly third port 136 can be in fluid communication with the fluid manifold block assembly fourth port 138, the fluid manifold block assembly third port 136 and the fluid manifold block assembly fourth port 138 are all located in the bulk reservoir assembly base channel member 178. In other aspects, the bulk ink reservoir assembly base channel member 178 can be in fluid communication with the primary dispense reservoir substrate 154 and the bulk ink reservoir substrate 185. The high volume ink reservoir substrate 185, shown with the high volume ink reservoir substrate first port 177, can be used to mount various embodiments of the bulk reservoir assembly (see Figure 3B). A second fluid manifold block valve 146 for controlling fluid communication between the primary dispense reservoir and the bulk ink reservoir can be mounted to the underside of the bulk ink reservoir base 185. The second fluid manifold block 140 of the modular fluid manifold block assembly 180 can have a third fluid manifold block valve 148 that can be mounted to the second fluid manifold block valve manifold 149 Up and in fluid communication with the fifth manifold 141 of the fluid manifold block assembly. A drain tube 143 can be inserted into the fluid manifold block assembly sixth port 142, the fluid manifold The block assembly sixth port 142 can be in fluid communication with the waste assembly.

Thus, as depicted in FIG. 7, various specific examples of modular manifold block assembly 180 can have, for example, without limitation, first fluid manifold block 130 and second fluid manifold block 140, a first fluid manifold region Block 130 and second fluid manifold block 140 provide equivalent distribution and control provided by fluid manifold block 30 of fluid manifold block assembly 80, as previously described.

8A and 8B depict various desired orientations of an ink supply valve that controls fluid communication between a primary dispense reservoir and a printhead, such as the first fluid manifold of the first fluid manifold block 130 illustrated in FIG. Tube block valve 144. Various specific examples of fluid manifold blocks in which the orientation of the fluid manifold block valve can be positioned as shown in Figures 8A and 8B can provide control of fluid flow in the passage such that no high points are present in the valve assembly The bubbles can be trapped at high points. In other aspects, various specific examples of fluid manifold blocks in which the orientation of the fluid manifold block valves can be positioned as shown in Figures 8A and 8B can, for example but without limitation, facilitate the promotion of air bubbles in the channels. The various ink formulations formed are used for printing.

9 depicts a cross-sectional view, partially in perspective, of various embodiments of the modular manifold block assembly of FIG. In a partial cross-sectional view of FIG. 9, a set of stainless steel balls 118 are depicted on the bottom of the adapter plate manifold manifold assembly first member 115 of the adapter plate manifold block assembly 100. As will be discussed in more detail later, a set of stainless steel balls mounted on the second surface 92 of the first adapter manifold assembly member is part of a moving mounting assembly that is provided in a three dimensional space. The six degrees of freedom of the print head unit 1100 are unstrained. For various embodiments of the self-contained printhead unit 1100, the electrical quick coupling assembly and the pneumatic quick coupling assembly and the motion mounting assembly are provided in an assembly that provides easy interchangeability of the plurality of print head units 1100 during the printing process. Some of.

In FIG. 9, the first fluid manifold block 130 can have a first fluid manifold block channel 192, a first fluid manifold block channel 192 and an adapter plate manifold block assembly 100 adapter plate manifold region The first channel 194 of the block is in fluid communication. First fluid manifold block channel 192 The fluid manifold block assembly second port 134 can be used to connect to the adapter plate manifold block first passage 194. The fluid manifold block assembly second port 134 can provide a zero dead volume connection between the first fluid manifold block channel 192 and the adapter plate manifold block first channel 194, as well as providing a leak free O-ring seals. Similarly, the second fluid manifold block 140 can have a second fluid manifold block channel 196, a second fluid manifold block channel 196 and an adapter plate manifold block assembly 100 adapter plate manifold block The second channel 198 is in fluid communication. The second fluid manifold block passage 196 can be coupled to the adapter plate manifold block second passage 194 using the fluid manifold block assembly fifth port 141. The fluid manifold block assembly fifth port 141 can provide a zero volume connection between the second fluid manifold block channel 196 and the adapter plate manifold block second channel 198, as well as providing a leak free O-ring seal .

A further illustration of various specific examples of features of a specific example of a fluid manifold assembly of the present teachings is shown in FIG. 10, which is a cross-section of the high volume ink reservoir assembly 170 as depicted in FIG. For various embodiments of the first fluid manifold block 130, the bulk reservoir assembly base channel member 178 of the high volume ink reservoir assembly 170 can have a large volume reservoir assembly base channel 184. The bulk reservoir assembly substrate channel 184 can be coupled to the bulk ink reservoir base channel 186 of the bulk ink reservoir substrate 185 and the primary dispense reservoir substrate channel 182 of the primary dispense reservoir substrate 154. Fluid communication. The fluid manifold block assembly third port 136 can provide a zero volume connection between the primary dispense reservoir base channel 182 and the bulk reservoir assembly base channel 184, as well as providing a leak free O-ring seal . Similarly, the fluid manifold block assembly fourth port 138 provides a zero volume connection between the bulk reservoir assembly base channel 184 and the bulk ink reservoir base channel 186, as well as providing a leak free O-type. Ring seal.

Thus, as depicted in Figures 9 and 10, various embodiments of the manifold block assembly of the present teachings (such as the specific examples described for the print head unit 1000 of Figure 2 and the print head unit 1100 of Figure 5) Distribution and control may be provided using a manifold block having a passageway fabricated therein. Various specific examples of the manifold block assembly of the present teachings may additionally have A plurality of ports for fluid communication between, for example but without limitation, various channels, and a valve for providing fluid control. Various embodiments of the manifold block assembly of the present teachings can have channels that are connected using a port connection that provides a zero volume connection and provides a leak free O-ring seal. Additionally, for various embodiments of the manifold block assembly in accordance with the present teachings, each component in communication with the manifold (such as, but not limited to, a manifold, valve, reservoir, vacuum source, gas source in communication with the port) (such as an inert gas source), an inkjet printhead assembly, and the like) can be mounted on the manifold and can be sealed using an O-ring seal to eliminate its use for conduit connections. Thus, various embodiments of the manifold assembly of the present teachings can minimize undesirable volume of the crucible and increase printhead unit robustness by avoiding failure modes common to various conduit and conduit connections.

As depicted in Figure 11, various embodiments of the printhead unit can have a plurality of printheads on each unit. Various embodiments of the printhead unit can have between about 1 and about 30 printheads. The print head (eg, an industrial ink jet head) can have between about 16 and about 2048 nozzles that can discharge a droplet volume between about 0.1 pL and about 200 pL. Various embodiments of the printhead unit as depicted in Figure 11 can have a plurality of printheads mounted on a common manifold. In FIG. 12A, a cross-sectional perspective view of the print head unit 1200 depicts a print head unit having five print heads, wherein four print heads are visible; the print head assembly 200 to the print head assembly 240. Figure 12B depicts a bottom perspective view of the printhead unit 1200 showing how the five printheads (printer head 200 to printhead 250 of Figure 12A) will be oriented toward the substrate. As shown in FIG. 12A and FIG. 12B, the print head unit 1200 can have a print head unit housing 1210 and a print head unit bottom support plate 1220 on the bottom of the print head unit support plate 1220 (such as but not limited to) The dispense reservoir assembly 50 and the bulk ink reservoir assembly 70 can be mounted to various manifold block assemblies (such as, but not limited to, the first fluid manifold block assembly 80 of Figure 12A). As described above with respect to the print head unit 1000 of FIG. 2 and the print head unit 1100 of FIG. 5, various embodiments of the print head unit 1200 An example may have a large volume ink reservoir that incorporates automated sensing and control to provide continuous fluid replenishment, which may have a volume sufficient to provide continuous supply of ink to the primary dispense reservoir throughout the progress of the printing process.

A printing system that can utilize various embodiments of the printing head unit 1000 can include a substrate supporting apparatus (such as a chuck or a floating table) for supporting a substrate for printing, and for controlling printing A motion system of the position of the head unit relative to the substrate. In various embodiments of the printing system, the printhead unit 1000 can be mounted, for example, on a tower or bridge of a multi-axis motion system. For various specific examples of printing systems, the printhead unit 1000 can be mounted, for example, on a tower of a two-axis motion system. Various specific examples of the printing system may have a print head unit 1000 mounted to be stationary, and the substrate mounted on the chuck may be moved relative to the print head unit 1000. Regardless of how the motion system for controlling the position of the print head unit relative to the substrate is implemented, various specific examples of the self-contained print head unit 1000 must be installed and clamped in such a manner as to provide a plurality of self-contained print heads. The ease of interchangeability of the unit 1000 into and out of the printing system and the stability of the print head unit 1000 during the printing process.

13A-13C depict various mounting and clamping assemblies 300 of various embodiments of a printhead unit assembly in accordance with the present teachings. Although the principles taught by the mounting and clamping assembly 300 of Figures 13A-13C can be used in various specific examples of printing the printhead unit, such as the printhead unit 1000 of Figure 2, the printhead unit 1100 of Figure 5, and The printhead unit 1200 is illustrated in Fig. 12A, but it will be apparent to those skilled in the art that the mounting and clamping assembly 300 is shown with respect to the printhead unit 1000 of Fig. 2 for purposes of illustration.

In other aspects, FIG. 13A is an exploded view of the printhead unit 1000 with respect to an exploded view of the clamp assembly 300. Various embodiments of the printhead unit 1000 can include a first guide 114 and a second guide 116 on the adapter plate assembly manifold 100 (Fig. 3C) for guiding the printhead unit 1000 Lead to the motion mount. It is generally understood by those skilled in the art that the motion mount provides a strain-free height that is reconfigurable relative to a fixed position in the mechanical system. Bit. Various embodiments of the mounting and clamping assembly 300 provide for unstrained positioning of the interchangeable printhead unit 1000 for precision printing purposes. In providing highly repeatable positioning for the printhead unit 1000, various embodiments of the mounting and clamping assembly 300 are additionally designed to effect entry and exit of the printhead unit 1000 in a manner consistent with that provided by the quick coupling connection. The integration of the printing system.

As shown in FIG. 13A, various embodiments of the mounting and clamping assembly 300 can have a guide frame that includes an introducer 310, a first guide frame 320, and a second guide frame 330. Various embodiments of the guide frame provide guidance for the print head unit 1000 to the base plate 340, while the first guide 114 and the second guide 116 assist in engaging and guiding the print head unit 1000 to the guide In the frame. The base plate 340 can have an opening 342 for receiving the printhead unit 1000 onto the motion mount, thereby allowing the end user to select the printhead to be positioned in the printing system for printing. As will be discussed in more detail later, various interchangeable substrate plates 340 can have openings 342 that are positioned to provide various angles of the position of the printhead unit 1000 relative to the substrate. The mounting and clamping assembly 300 can have a local waste container 346 mounted to the base plate 340. The local waste container 346 can include a port 343 for receiving the drain tube 43 of the print head unit 1000 to provide contactless engagement of the print head unit 1000 to the mounting and clamping assembly 300 at the point of contact. The contact point may be an additional design element that enables the interchangeable printhead unit 1000 to move in and out of the printing system without hindering system performance. The local waste container 346, which may be mounted to the base plate 340 in various embodiments of the mounting and clamping assembly 300, may include a connector 344 to which the connector 344 may be attached. In addition to providing contactless engagement of the printhead unit 1000 to the mounting and clamping assembly 300, the design of the contactless integration of the drain tube 43 with the local waste container 346 also prevents the fluid system in the printhead unit 1000 from being printed. Cross-contamination of the ink at the end of the exit port. The combination of the design of the self-contained ink supply provided by the onboard secondary ink reservoir system at the input end of the ink supply combined with the design of the local waste container 346 at the output end is prevented for a plurality of interchangeable print head units 1000 ink Cross-contamination. The base plate 340 can have a set of three moving V-groove mounting stations 348 that, as will be discussed in more detail later, provide six degrees of freedom without strain in the print head unit 1000 in three-dimensional space. Positioning and a plurality of portions of the print mount that are easy to interchange with the print head unit 1000. For various embodiments of the mounting and clamping assembly 300, the base plate 340 is engaged with the base plate support arm 350, which can be attached to the support in the printing system. The base plate support 350 can include a first support post 352 to which a clamping assembly can be attached, and a second support post 354.

FIG. 13B is a top plan view of the printhead unit 1000 mounted in the mounting station assembly 300 showing the high volume ink reservoir top 122 and the support structure assembly handle 158 opposite the bulk ink reservoir top 122. As previously discussed, the substrate plate 340 can have an opening 342 (Fig. 13A) for receiving the printhead unit 1000 onto the motion mount, thereby allowing the end user to select the printhead to be positioned in the printing system for Print. It is generally understood by those skilled in the art that different substrate plates 340 (each of which may have openings 342 positioned at varying angles) may provide end users with a choice of substrate plates that achieve saber angle selection. . The technical term "corner angle" may mean an orientation angle such as a printing head unit of the printing head unit 1000 with respect to a feature defining a printing direction on the substrate, the angle being non-zero determined from a plane orthogonal to the printing direction. digital. In accordance with various embodiments of the present teachings, the corners of the printhead unit 1000 can be varied to vary the number of features per unit area that can be printed on the substrate. In other aspects, easily changing the corners of the printhead unit 1000 by easily changing the substrate plate 340 can facilitate providing the end user with the ability to adjust the print density per unit area of the substrate.

Figure 13C is a bottom plan view of a printhead unit 1000 in accordance with various embodiments showing a set of stainless steel balls 118 mounted on a second surface 92 of the first adapter manifold assembly member. Referring back to Figure 13A, the base plate 340 can have a set of three moving V-groove mounting stations 348. The set of stainless steel balls 118 on the bottom of the adapter planar manifold block assembly first member 115 of the adapter planar manifold block assembly 100 cooperate with the set of V-groove mounting stations 348 to provide The six degrees of freedom of the print head unit 1000 in the three-dimensional space is unstrained. As mentioned previously, in addition to providing highly repeatable positioning for the printhead unit 1000, various embodiments of the mounting and clamping assembly 300 are additionally designed to achieve integration of the printhead unit 1000 into and out of the printing system so that The easy movement of the print head unit 1000 is provided without hindering system performance.

14 provides a perspective view of the printhead unit 1000 of the mounting and clamping assembly 300 (FIG. 13A) showing the air bearing assembly 400 for clamping the printhead unit 1000 to the base plate support 350. s position. As can be seen in Figure 14, the air bearing assembly 400 can be mounted to an air bearing support arm 460 that can be designed to latch onto the second air bearing support post 354 while being manually or The robot moves to easily release the latch so that the plurality of print head units 1000 can be easily interchanged. The air bearing assembly 400 includes an air bearing knurl knob 410 to adjust the height of the air bearing disc 430 distal to the air bearing knurling knob 410 attached to the air bearing shaft 420. It is generally understood by those skilled in the art that the spring mechanism connects the air bearing knurling knob 410 and the air bearing disc 430 to provide a controlled clamping force. The air bearing disk 430 includes an air bearing gas supply port 440 that can supply gas from the air bearing gas supply port 440 during initial clamping of the print head unit 1000 in the mounting and clamping assembly 300, such as, but not limited to, Inert gas. In various embodiments in which the printhead unit 1000 is mounted and clamped in the mounting and clamping assembly 300, the air bearing clamping of the printhead unit 1000 in the mounting and clamping assembly provides contactless pneumatic clamping. Thereby providing a stable clamping force during movement of the print head unit 1000 during the printing process. For various specific examples of mounting and clamping the printhead unit 1000 in the mounting and clamping assembly 300, initially, the air bearing clamp of the printhead unit 1000 is printed in the mounting and clamping assembly 300 to provide a contactless clamp. Hold, thereby preventing any lateral forces on the printhead unit 1000 during placement of the printhead unit 1000 in the mounting and clamping assembly 300. After the initial placement of the printhead unit 1000 has been completed, the gas supply to the air bearing disk 430 (such as an inert gas) can be turned off, and the spring mechanism places the air bearing disk 430 in a controllable manner on the interface assembly. On the top surface of the 500, Thereby a stable clamping force is provided during the movement of the print head unit 1000 during the printing process. In other aspects, the combination of motion mounting and strain free clamping provides for stable positioning of the printhead unit 1000 during the printing process, as well as providing reproducible positioning for various embodiments of the easily interchangeable printhead unit 1000.

In FIG. 15, interface assembly 500 in accordance with various embodiments is shown as being ready to engage printhead unit 1000. Although the principles taught for the interface assembly 500 can be used in various specific examples of printing the printhead unit, such as the print head unit 1000 of FIG. 2, the print head unit 1100 of FIG. 5, and the print head unit 1200 of FIG. 12A, However, those skilled in the art will appreciate that the interface assembly 500 is shown with respect to the printhead unit 1000 of FIG. 2 for purposes of illustration.

The interface assembly 500 includes a first interface assembly valve 510 and a vacuum connection 515, and a second interface assembly valve 520 and a connection 525 to a gas source (such as an inert gas source) for applying vacuum and inert gas pressure, respectively. Control and connectivity. The interface assembly additionally includes a spring loaded thimble array 540 for printing the electrical connectivity of the printhead unit 1000 to the electrical control interface of the printing system. The interface assembly can be slid, for example, by sliding the first interface assembly hinge 550 and the second interface assembly hinge 552 (not shown) to the first interface assembly hinge slot 551 and the second interface assembly hinge slot 553 It is easily attached to the print head unit 1000 (not shown). According to various embodiments, the interface assembly 500 can be guided by guide pins 29 into position over the printhead unit 1000. The interface assembly 500 can be latched to the printhead unit 1000 using a pull latch 127 that incorporates a pull latch lip 530. When positioned in position, interface assembly 500 connects spring-loaded thimble array 540 to spring-loaded thimble pad 4 and is positioned for vacuum communication of self-interposer assembly 500 (not shown) from pneumatic manifold block 10. A complementary port for the vacuum and inert gas connection of the port 12 and the inert gas port 14. For various specific examples of the print head unit 1000 and the interface assembly 500, the vacuum and inert gas connections for the self-interface assembly 500 and the vacuum port 12 of the pneumatic manifold block 10 and the inert gas port 14 are complementary. The mouth can be sealed with an O-ring The pieces are sealed. In accordance with various embodiments of the present teachings, the interface assembly 500 can be easily disconnected from the printhead unit 1000 and still function as part of a printing system.

In FIG. 16, a cover station assembly 600 is depicted that can be used to maintain a plurality of print head units in accordance with the present teachings in operable conditions without being used in a printing system, in accordance with various embodiments of the present teachings. Maintenance module. Although the principles taught for the cap station assembly 600 can be used for various specific examples of the print head unit, such as the print head unit 1000 of FIG. 2, the print head unit 1100 of FIG. 5, and the print head unit of FIG. 12A. 1200, but those of ordinary skill in the art will appreciate that the capping station assembly 600 is shown with respect to the printhead unit 1000 of FIG. 2 for purposes of illustration.

According to various specific examples of the cover station assembly 600, each of the plurality of print head units 1000 (indicated as 1000-I to 1000-V in FIG. 8) can be coupled into each particular cover station, Each of the plurality of print head units 1000-I through 1000-V is indicated as 610 to 650, respectively. When placed in the position of the cover station, each print head unit 1000 can be coupled to an electrical and vacuum connection on the hinge assembly for each of the plurality of print head units 1000-I through 1000-V Indicated as 615 to 655. According to various specific examples of the cover station assembly 600, power can be provided to each of the electrical and vacuum hinge assemblies such that each of the print head units 1000-I through 1000-V The periodic firing pulse of each nozzle selected by the user to print the printhead can be applied when the printhead unit can be engaged to ensure that the nozzle remains initiating and does not block. In other aspects, the storage of each of the plurality of printhead units 1000 in the cover station assembly 600 ensures that each printhead unit can be readily utilized as an interchangeable unit for the printing process.

Various specific examples of print head unit assemblies that may include print head units, mounting and clamping assemblies, and interface assemblies may be used in various specific examples of printing systems. An OLED inkjet printing system can include a number of devices and devices that allow for reliable placement of ink droplets onto specific locations on a substrate. Such devices and devices may include, but are not limited to, print head assemblies, Ink delivery systems, motion systems, substrate loading and unloading systems, and printhead maintenance systems. The printhead assembly is comprised of at least one inkjet head, at least one of which is capable of ejecting ink droplets at a controlled rate, speed and size. The print head can be fed by an ink supply system that supplies ink to the print head. Printing requires printing the relative motion between the printhead assembly and the substrate. This situation can be achieved with a motion system (typically a tower or a split XYZ system). In the case of a split-axis configuration, the print head assembly can be moved over a stationary substrate (tower style), or both the print head and the substrate can be moved. In another embodiment, the printing station can be fixed and the substrate can be moved relative to the printing head on the X-axis and the Y-axis, wherein the Z-axis motion is provided at the substrate or print head. As the printhead moves relative to the substrate, ink droplets are ejected at the correct time to deposit in the desired portion of the substrate. The substrate can be inserted and removed from the printer using a substrate loading and unloading system. Depending on the printer configuration, this situation can be achieved with a mechanical conveyor, a substrate floating table or a robot with an end effector. The printhead maintenance system can include subsystems that allow for such maintenance tasks such as, but not limited to, drop volume calibration, elimination of excess ink from the printhead nozzle plate surface, and ejection of ink to waste. The beginning of the pool of things.

17 is a perspective view of an OLED inkjet printing system 2000. Various specific examples of the printing system of the present teachings can include a number of devices and devices that allow ink to drip onto a particular portion of a substrate, such as substrate 1058, which is shown proximate to substrate floating table 1054. Reliable placement. The substrate floating stage 1054 can be used for frictionless transport of the substrate 1058. Given the various components that may include the OLED printing system 2000, various specific examples of the OLED printing system 2000 can have a variety of footprints and appearance sizes. Various substrate materials can be used for substrate 1058, such as, but not limited to, a variety of glass substrate materials and a variety of polymeric substrate materials, depending on various embodiments of OLED inkjet printing systems.

For example, OLED printing system 2000 can include a substrate 1070 and a bridge 1079 that can support a first printhead assembly positioning system 1090 and a second printhead assembly positioning system 1091. For positioning the first print head assembly 1080 above the substrate 1058 The first print head assembly positioning system 1090 can include a first X-axis bracket 1092 and a first Z-axis moving plate 1094, and the first print head assembly enclosure 1084 can be mounted to the first Z-axis moving plate 1094. The second print head assembly positioning system 1091 can be similarly configured to control the XZ axis movement of the second print head assembly 1081, and can include a second X-axis moving plate 1093 and a second Z-axis moving plate 1095 The second print head assembly enclosure 1085 can be mounted to the second Z-axis moving plate 1095. As depicted in FIG. 17 for the printhead assembly 1080, wherein the first printhead assembly enclosure 1084 is depicted in partial view, various embodiments of the printhead assembly can have a plurality of prints mounted therein. Sprinkler device 1082. For various embodiments of the printing system 2000, the print head assembly can include between about 1 and about 60 print head assemblies, wherein each print head unit can be interposed in each print head unit Print nozzles between about 1 and about 30. Given the absolute number of printhead devices and printheads that require ongoing maintenance, it can be seen that the first maintenance system assembly 1250 is positioned to easily access the first printhead assembly 1080. For various specific examples of the OLED printing system 2000, the bridge 1079 can support the first print head assembly positioning system 1090 and the second positioning system 1091. For various specific examples of OLED printing system 2000, there may be a single positioning system and a single print head assembly. For various specific examples of the OLED printing system 2000, there may be a single print head assembly, for example, one of the first print head assembly 1080 and the second print head assembly 1081 for detecting the substrate A camera system characterized by 1058 can be mounted to the second positioning system.

18 is a schematic representation of a gas enclosure assembly and system 2100 that can accommodate the printing system 2000 of FIG. 17 is a schematic diagram showing a gas enclosure assembly and system 2100. Various embodiments of the gas enclosure assembly and system 2100 can include a gas enclosure assembly 2500 in accordance with the present teachings, a gas purification circuit 2130 in fluid communication with the gas enclosure assembly 2500, and at least one thermal conditioning system 2140. Additionally, various embodiments of the gas enclosure assembly and system can have a pressurized inert gas recirculation system 2169 that can supply an inert gas to operate various devices, such as a substrate floating table for an OLED printing system. Pressurized inert gas recirculation system Various embodiments of 2169 may utilize a compressor, a blower, and a combination of the two as a source of various specific examples of inert gas recirculation system 2169. Additionally, the gas enclosure assembly and system 2100 can have a filtration and circulation system within the gas enclosure assembly and system 2100 (not shown).

As depicted in FIG. 18, for various embodiments of the gas enclosure assembly 2100 in accordance with the present teachings, the gas purification circuit 2130 includes a gas enclosure assembly 2500 to a solvent removal assembly 2132 and then to a gas purification system 2134. Exit line 2131. The inert gas purified from the solvent and other reactive gas species, such as oxygen and water vapor, is then returned to the gas enclosure assembly 2500 through inlet line 2133. Gas purification circuit 2130 can also include suitable piping and connections, as well as sensors such as oxygen, water vapor, and solvent vapor sensors. A gas circulation unit such as a fan, blower or motor and the like may be separately disposed or integrated, for example, in the gas purification system 2134 to circulate the gas through the gas purification circuit 2130. According to various specific examples of the gas enclosure assembly, although the solvent removal system 2132 and the gas purification system 2134 are shown as separate units in the schematic shown in FIG. 17, the solvent removal system 2132 and the gas purification system 2134 can be Accommodated together as a single purification unit. The thermal conditioning system 2140 can include at least one chiller 2141 that can have a fluid outlet line 2143 for circulating coolant into the gas enclosure assembly, and a fluid inlet for returning the coolant to the chiller Line 2145.

For various embodiments of the gas enclosure assembly 2100, the gas source can be any of an inert gas (such as nitrogen), a noble gas, and any combination thereof. For various embodiments of the gas enclosure assembly 2100, the gas source can be a source of gas such as clean dry air (CDA). For various embodiments of the gas enclosure assembly 2100, the gas source can be a source of a combination of an inert gas and a gas such as CDA. Various embodiments of the gas enclosure assembly and system 2100 can maintain the level of each of a variety of reactive gas species, including various reactive atmospheric gases (such as water vapor and oxygen) and An organic solvent vapor of 100 ppm or less (for example, 10 ppm or less, 1.0 ppm or less, or 0.1 ppm or less). In addition, various specific examples of gas enclosure assemblies are available to meet ISO 14644 Class 3 and Class 4 clean room standards for low particle environments.

Thus, as taught by the present teachings, design features for various specific examples of self-contained print head units (including airborne fluid systems, quick coupling electrical and pneumatic interfaces) combined with motion mounting and air bearing clamping totals The design features of the various specific examples and the contactless integration to the waste assembly provide for easy interchangeability of the plurality of print head units in the printing system during the printing process while preventing the filling of a plurality of prints A plurality of end users of each of the head units select cross-contamination of the ink.

Although the principles of various embodiments of the print head unit, the mounting and clamping assembly, the interface assembly, and the industrial inkjet film printing system have been described in connection with specific embodiments, it should be clearly understood that such descriptions are only This is done as an example and is not intended to limit the scope of the teachings. The disclosures herein have been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise forms described. Many modifications and variations will be apparent to those skilled in the art. The disclosure has been chosen and described in order to best explain the principles of the embodiments and . The scope of the disclosure is intended to be defined by the following claims.

Claims (29)

A printing system for printing ink onto a substrate, the printing system comprising: a motion system that positions the substrate and a printing head relative to each other; at least one mechanical interface of the motion system, selectively The motion system engages with a selected modular printhead unit of any one of a plurality of modular printhead units and selectively separates the motion system from any one of the selected modular printhead units The joining and separating are performed according to an automated reference, each of the plurality of modular printing head units having a plurality of nozzles; a pneumatic system providing pneumatic power; and a fluid system providing ink; An electronic system that receives calibration data and provides a nozzle firing command; wherein the at least one mechanical interface includes: at least one pneumatic connection, the pneumatic connection provided when the motion system is engaged with the selected modular print head unit Pneumatic power to the selected modular print head unit of the plurality of modular print head units; at least one stream Connecting, when the motion system is engaged with the selected modular printhead unit, the fluid connection supplies ink to the selected modular printhead unit of the plurality of modular printhead units, And at least one electrical connection that provides the calibration from the onboard memory of the selected modular printhead unit to the electronic system when the motion system is engaged with the selected modular printhead unit Data, and when the motion system is engaged with the selected modular printhead unit, the nozzle is provided to transmit the plurality of nozzles to the selected modular printhead unit. The printing system of claim 1, wherein the printing system is a split printing system, wherein the motion system is a first motion system, and the plurality of modular printing jets Each selected modular printhead unit in the head unit is transported relative to the split print system, and wherein the print system includes a second motion system that transports the substrate relative to the split printing system. The printing system of claim 1, wherein the printing system further comprises a gas enclosure that encloses the substrate and the selected modularization during printing relative to ambient air Print the print head unit. The printing system of claim 1, wherein the onboard memory of the selected modular print head unit also stores the selected one of the plurality of modular print head units uniquely An identification code of the printhead unit is modularized, and wherein the at least one electrical connection provides the identification code to the electronic system when the motion system is engaged with the selected modular printhead unit. The printing system of claim 1, wherein the pneumatic powertrain is provided by at least one of a vacuum or a pressurized gas. The printing system of claim 1, wherein the ink comprises a material for forming an organic light emitting diode film on the substrate. The printing system of claim 1, wherein at least one of the plurality of modular print head units comprises a print head, wherein at least one fluid connection supplies ink from the fluid system to the module Each of the printheads of at least one of the modular printhead units is formed, and wherein each of the printheads includes at least 500 nozzles in fluid communication with the fluid connection. The printing system of claim 1, wherein: the printing system further comprises a storage device for storing each of the plurality of modular printing head units at a corresponding unique position; the selected The onboard memory of the modular printhead unit also stores information to identify the selected plurality of modular printheads in the plurality of modular printhead units Corresponding unique location of the element; and when the selected modular printhead unit of the plurality of modular printhead units is engaged with the motion system, the at least one electrical connection provides the information to the electronic system . The printing system of claim 1, wherein the at least one mechanical interface is for providing an unstrained and repeatable positional connection of each of the plurality of modular printhead units relative to the motion system. The printing system of claim 1, wherein the at least one mechanical interface comprises a motion mounting station to repeatedly position each of the plurality of modular printhead units relative to the motion system. The printing system of claim 1, wherein the at least one electrical connection provides information from the selected modular printhead unit to the electronic system to selectively identify a maximum fill condition, and Providing information from the selected modular printhead unit to the electronic system to identify a minimum fill condition, and wherein the fluid system is responsive to information identifying the maximum fill condition and in response to identifying the minimum fill condition And supplying ink to an on-board ink reservoir of the selected modular print head unit of the plurality of modular print head units. The printing system of claim 1, wherein the at least one electrical connection comprises a spring-loaded thimble coupling. The printing system of claim 1, wherein the calibration data includes drop volume calibration data of the selected modular print head unit. The printing system of claim 1, wherein the onboard memory of the selected modular print head unit further stores information that is to be supplied by the fluid system through the at least one fluid connection to the The type of ink selected for the modular printhead unit. For example, the printing system of claim 1 wherein the motion system includes an adjustable security And mounting a table to change a corner of the selected modular print head unit in the plurality of modular print head units, the corner angle adjusting an ink print density per unit area of the substrate. The printing system of claim 1, wherein the motion system further positions the substrate and the printing head relative to one another in at least two different degrees of freedom. A modular print head unit for a printing system, the printing system having a motion system for positioning the modular print head unit and the substrate relative to each other, the modular print head unit comprising Printing a print head, each print head having a plurality of nozzles for ejecting ink droplets onto the substrate; at least one mechanical interface selectively engaging the modular print head unit with the motion system And selectively separating the modular print head unit from the motion system; a pneumatic manifold for providing pneumatic power to the plurality of components; a fluid manifold for supplying ink to the plurality of nozzles; And an electronic system for providing a nozzle firing command to the plurality of nozzles to cause the plurality of nozzles to eject the ink droplets, and storing calibration data for the modular print head unit in the onboard memory Wherein the at least one mechanical interface further comprises: at least one pneumatic connection for receiving the pneumatic power from the printing system, and when the motion system and the modularized column The nozzle unit is coupled to supply the pneumatic power to the pneumatic manifold, at least one fluidly coupled to receive ink from the printing system, and to supply ink to the motion system when the motion system is engaged with the modular print head unit The fluid manifold, and At least one electrical connection to receive a nozzle firing command from the printing system and to provide calibration data to the printing system whenever the motion system is engaged with the modular printhead unit. The modular print head unit of claim 17, wherein the memory further stores an identification code that uniquely identifies the modularized column relative to other print head units of the printing system The printhead unit, and wherein the at least one electrical connection supplies the identification code to the printing system when the modular printhead unit is engaged with the motion system. The modular printhead unit of claim 17, wherein the pneumatic powertrain is provided by at least one of a vacuum or a pressurized gas. The modular print head unit of claim 17, wherein the ink comprises a material for forming an organic light emitting diode film on the substrate. The modular printhead unit of claim 17 wherein each of the printheads includes at least 500 nozzles in fluid communication with the fluid manifold. The modular print head unit of claim 17, wherein the printing system further comprises a reservoir for storing a corresponding one of the plurality of print head units in the storage device. Positioning, the plurality of print head units includes the modular print head unit, and wherein: the onboard memory also stores information, the information identifying a corresponding unique position corresponding to the modular print head unit; And when the modular printhead unit is engaged with the motion system, the at least one electrical connection provides the information to the electronic system. The modular printhead unit of claim 17, wherein the at least one mechanical interface is for providing an unstrained and repeatable positional connection of the modular printhead unit relative to the motion system. The modular printhead unit of claim 17, wherein the at least one mechanical interface comprises a motion mount to repeatedly position the modular printhead unit relative to the motion system. The modular print head unit of claim 17, wherein the at least one electrical connection provides information from the modular print head unit to the electronic system to identify a maximum fill condition, and further Providing information from the modular printhead unit to the electronic system to identify a minimum fill condition, and wherein the print system is responsive to the identification when the modular printhead unit is engaged with the motion system The information of the maximum fill condition and the information identifying the minimum fill condition selectively supply ink to an onboard ink reservoir of the modular printhead unit. The modular print head unit of claim 17, wherein the at least one electrical connection comprises a spring type thimble coupling. The modular print head unit of claim 17 , wherein the calibration data comprises a drop volume calibration data of the modular print head unit. The modular print head unit of claim 17, wherein when the modular print head unit is engaged with the motion system, the onboard memory further stores information indicating that the fluid is to be used by the fluid The system connects the type of ink supplied to the modular printhead unit by the at least one fluid connection. A method of making a layer of electrical article, the method comprising: positioning a substrate and a printhead relative to one another using a motion system; using at least one mechanical interface of the motion system to selectively move the motion system to a plurality of modules Forming a selected modular printhead unit of any one of the printhead units and selectively separating the motion system from any one of the selected modular printhead units, the engagement and separation being based An automated reference execution, each of the plurality of modular print head units having a plurality of nozzles; Printing ink onto the substrate using the selected modular printhead, wherein printing ink further includes using a pneumatic system of the printing system to provide pneumatic power, using a fluid system of the printing system to supply ink, And using an electronic system of the printing system to receive calibration data and provide a nozzle firing command; wherein the at least one mechanical interface comprises: at least one pneumatic connection, the motion system engaging the selected modular print head unit The pneumatic connection provides pneumatic power to the selected modular print head unit of the plurality of modular print head units; at least one fluid connection when the motion system and the selected modular array When the print head unit is engaged, the fluid connection supplies ink to the selected modular print head unit of the plurality of modular print head units, and at least one electrical connection, when the motion system is selected When the modular print head unit is engaged, the electrical connection is from the onboard memory of the selected modular print head unit to the electronic system The calibration data, and when the motion system is engaged with the selected modular printhead unit, providing the nozzle to transmit the command to the plurality of nozzles of the selected modular printhead unit; and processing is deposited on the substrate The upper ink forms the layer by ink deposited on the substrate.