Method of installing printhead in print module

Patent metadata

Field	Value
Publication number	US-2021237453-A1
Application number	US-202117239253-A
Country	US
Kind code	A1
Filing date	Apr 23, 2021
Priority date	Oct 3, 2018
Publication date	Aug 5, 2021
Grant date	—

Abstract

A method of installing a printhead in a print module includes the steps of: positioning the printhead in a nest of the print module; moving first and second ink couplings towards the nest and into engagement with complementary first and second ink ports positioned at opposite ends of the printhead; and moving a depressor towards the nest and into urging engagement with a portion of the printhead positioned between the first and second ink ports. The first ink coupling, the second ink coupling and the depressor are moved simultaneously, linearly and parallel to each other, thereby to datum the printhead against the nest.

First claim

1 . A method of installing a printhead in a print module, said method comprising the steps of:
positioning the printhead in a nest of the print module; moving first and second ink couplings towards the nest and into engagement with complementary first and second ink ports positioned at opposite ends of the printhead; and moving a depressor towards the nest and into urging engagement with a portion of the printhead positioned between the first and second ink ports,
wherein the first ink coupling, the second ink coupling and the depressor are moved simultaneously, linearly and parallel to each other, thereby to datum the printhead against the nest.

2 . The method of claim 1 , wherein the portion of the printhead is configured for complementary engagement with the depressor.

3 . The method of claim 2 , wherein the depressor comprises a thrust pin and the portion of the printhead defines a notch for receiving the thrust pin.

4 . The method of claim 3 , wherein the depressor comprises a pair of opposed thrust pins extending parallel to a transverse axis of the printhead and perpendicular to a direction of movement of the depressor.

5 . The method of claim 1 , wherein the portion of the printhead is a central portion positioned midway along a longitudinal axis of the printhead.

6 . The method of claim 1 , wherein step of positioning the printhead in the nest comprises the steps of:
longitudinally slidingly inserting the printhead along a rail of a printhead carrier; and moving the printhead carrier towards the nest.

7 . The method of claim 6 , wherein the printhead carrier is moved via a pivoting motion.

8 . The method of claim 1 , wherein the first ink coupling, the second ink coupling and the depressor are moved using a common lift mechanism.

9 . The method of claim 1 , wherein engagement of the first and second ink couplings with the complementary first and second ink ports forms fluid connections to the printhead.

10 . The method of claim 1 , wherein the printhead has a length of at least 200 mm.

Assignees

• Memjet Technology Ltd

Inventors

• Burke David
• Berry Norman
• Anothonysamy Harrick Selvan
• Anciano Reynovel Pacinio
• Fah Soon Keat
• Say Poh Lai

Classifications

• B41J29/377

  Cooling or ventilating arrangements · CPC title

• B41J29/13

  Cases or covers · CPC title

• B41J2202/20

  Modules · CPC title

• B41J29/56

  and manually actuated · CPC title

• B41J25/304

  Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface · CPC title