Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020112381 - ELECTROPHOTOGRAPHY-BASED 3D PRINTING WITH IMPROVED LAYER REGISTRATION

Publication Number WO/2020/112381
Publication Date 04.06.2020
International Application No. PCT/US2019/061596
International Filing Date 15.11.2019
IPC
G03G 15/22 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
22involving the combination of more than one step according to groups G03G13/02-G03G13/20120
B29C 64/147 2017.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
10Processes of additive manufacturing
141using only solid materials
147using sheet material, e.g. laminated object manufacturing or laminating sheet material precut to local cross sections of the 3D object
B33Y 30/00 2015.01
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
30Apparatus for additive manufacturing; Details thereof or accessories therefor
CPC
B29C 64/153
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
10Processes of additive manufacturing
141using only solid materials
153using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/218
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
20Apparatus for additive manufacturing; Details thereof or accessories therefor
205Means for applying layers
218Rollers
B33Y 10/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
10Processes of additive manufacturing
B33Y 30/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
30Apparatus for additive manufacturing; Details thereof or accessories therefor
G03G 15/224
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
22involving the combination of more than one step according to groups G03G13/02 - G03G13/20
221Machines other than electrographic copiers, e.g. electrophotographic cameras, electrostatic typewriters
224Machines for forming tactile or three dimensional images by electrographic means, e.g. braille, 3d printing
G03G 15/6564
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
65Apparatus which relate to the handling of copy material
6555Handling of sheet copy material taking place in a specific part of the copy material feeding path
6558Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point
6561for sheet registration
6564with correct timing of sheet feeding
Applicants
  • EASTMAN KODAK COMPANY [US]/[US]
Inventors
  • KUO, Chung-Hui
  • SHIFLEY, James Douglas
  • SPAULDING, Kevin Edward
Priority Data
16/203,75729.11.2018US
16/203,77329.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ELECTROPHOTOGRAPHY-BASED 3D PRINTING WITH IMPROVED LAYER REGISTRATION
(FR) IMPRESSION 3D À BASE D'ÉLECTROPHOTOGRAPHIE AVEC ALIGNEMENT DE COUCHE AMÉLIORÉ
Abstract
(EN)
An additive manufacturing system (10) includes a transfer belt (22) traveling along a belt path including first (122) and second (124) moveable-position rollers and a plurality of fixed-position rollers (120). The belt path includes a fixed-velocity portion (112) from the first moveable position roller to the second moveable position roller, and a variable-velocity portion (114) from the second moveable position roller to the first moveable position roller. An electrophotography engine (12p, 12s) positioned along the fixed-velocity portion deposits a part material layer (64p) onto the transfer belt, and an image transfer assembly (140) positioned along the variable-velocity portion transfers the part material layer onto a receiver medium (68). An image sensing system (150) positioned along the belt path between the second moveable position roller and the image transfer assembly captures an image which is analyzed to determine an in-track registration error, and the positions of the first and second moveable position rollers are adjusted to compensate for the in-track registration error.
(FR)
La présente invention concerne un système de fabrication additive (10) comprenant une courroie de transfert (22) se déplaçant le long d'un trajet de courroie comprenant des premier (122) et second (124) rouleaux à position mobile et une pluralité de rouleaux à position fixe (120). Le trajet de courroie comprend une partie à vitesse fixe (112) du premier rouleau à position mobile au second rouleau à position mobile et une partie à vitesse variable (114) du second rouleau à position mobile au premier rouleau à position mobile. Un moteur d'électrophotographie (12p, 12s) positionné le long de la partie à vitesse fixe dépose une couche de matériau pour pièce (64p) sur la courroie de transfert et un ensemble de transfert d'image (140) positionné le long de la partie à vitesse variable transfère la couche de matériau pour pièce sur un support récepteur (68). Un système de détection d'image (150) positionné le long du trajet de courroie entre le second rouleau à position mobile et l'ensemble de transfert d'image capture une image qui est analysée pour déterminer une erreur d'alignement dans la piste et les positions des premier et second rouleaux à position mobile sont ajustées pour compenser l'erreur d'alignement dans la piste.
Latest bibliographic data on file with the International Bureau