Print module having pivotable printhead carrier

Patent metadata

Field	Value
Publication number	US-10967638-B2
Application number	US-201916591494-A
Country	US
Kind code	B2
Filing date	Oct 2, 2019
Priority date	Oct 3, 2018
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

A print module includes: a cradle defining a longitudinal cavity and an access opening at a first end of the longitudinal cavity; an elongate printhead carrier positioned in the longitudinal cavity, the printhead carrier being pivotable about a pivot axis at a second end of the cradle opposite the first end; and an elongate printhead longitudinally slidably engaged with the printhead carrier. The printhead is removable from the cradle via pivoting of the printhead carrier and longitudinally sliding the printhead relative to the printhead carrier through the access opening.

First claim

The invention claimed is:

1. A print module comprising:
a cradle defining a longitudinal cavity and an access opening at a first end of the longitudinal cavity, the cradle comprising a supply assembly slidably received therein;
an elongate printhead carrier positioned in the longitudinal cavity, the printhead carrier being pivotable about a pivot axis at a second end of the cradle opposite the first end; and
an elongate printhead longitudinally slidably engaged with the printhead carrier, wherein:
the printhead is removable from the cradle via pivoting of the printhead carrier and longitudinally sliding the printhead relative to the printhead carrier through the access opening; and,
the supply assembly is linearly slidably movable towards and away from the printhead for detachable connection thereto.

2. The print module of claim 1 , wherein the printhead carrier comprises a rail and the printhead comprises an overhead hanger slidably engaged with the rail.

3. The print module of claim 1 , wherein a first end of the printhead carrier comprises a slidable latch for latching engagement with the first end of the cradle.

4. The printhead module of claim 1 , wherein the access opening has one or more retaining features for retaining a first end of the printhead carrier in a raised position.

5. The print module of claim 1 , wherein the pivot axis is transverse to the longitudinal axis.

6. The print module of claim 1 , wherein the supply assembly comprises one or more of:
an ink coupling for connecting an ink supply to the printhead; and
a PCB for supplying data and/or power to the printhead.

7. The print module of claim 1 , wherein the supply assembly comprises a thrust pin configured for urging a central portion of the printhead towards a lower nest portion of the cradle.

8. The print module of claim 1 , wherein a first end of the printhead carrier is connected to the supply assembly via a linkage.

9. The print module of claim 8 , wherein the cradle comprises a fixed limiter configured for abutment with a reaction plate of the printhead carrier so as to limit movement of the printhead carrier during pivoting movement thereof.

10. The print module of claim 9 , wherein the limiter comprises a tongue extending from the cradle towards the printhead assembly, the tongue being configured for abutment with the reaction plate of the printhead carrier.

11. The print module of claim 10 , wherein the tongue passes through a tongue slot of the cradle during movement of the supply assembly.

12. The print module of claim 1 comprising a guide positioned at the access opening, the guide having an upper surface configured for guiding the printhead into the longitudinal cavity without contacting an ink ejection face of the printhead.

13. The print module of claim 12 , wherein the guide comprises a pair of support shoulders positioned for supporting longitudinal edge regions of the printhead and a recess between the support shoulders, the recess being aligned with the ink ejection face of the printhead.

14. The print module 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

• B41J2/17526

  Electrical contacts to the cartridge · CPC title

• B41J2/235

  Print head assemblies · CPC title

• B41J2/16585

  for paper-width or non-reciprocating print heads · CPC title