Memjet Technology Limited

Soon Keat Fah

Norman Micheal Berry

David Oliver Burke

Reynovel Pacinio Anciano

Poh Lai Say

Harrick Selvan Anothonysamy

Reynoval Pacinio Anciano

Harrick Selvan S/O Anothonysamy

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.

Method of installing printhead in print module

A method of engaging a supply module with a printhead includes the steps of: moving an actuator handle in a first motion along a first axis, thereby linearly sliding the supply module along the first axis towards the printhead and engaging ink couplings of the supply module with complementary ink ports of the printhead; and moving the actuator handle in a separate second motion along a second axis perpendicular to the first axis, thereby moving a PCB of the supply module towards the printhead and engaging PCB contacts with complementary printhead contacts.

Method of engaging supply module with printhead

A print module includes: a printhead having ink ports and a row of printhead contacts; and a supply assembly slidably movable relative to the cradle along an axis perpendicular to a longitudinal axis of the printhead. The supply assembly includes: ink couplings positioned for fluidic connection to the ink ports; and a PCB having a row of PCB contacts for electrical connection to the printhead contacts. A single actuator handle is configured for sequentially actuating electrical connection or disconnection in a first motion and actuating fluidic connection or disconnection in a second motion.

Print module with single multifunctional actuator handle

A print module includes: a cradle having a longitudinal cavity; an elongate printhead assembly positioned in the longitudinal cavity; a supply assembly slidably movable relative to the cradle along an axis perpendicular to a longitudinal axis of the printhead assembly, the supply assembly including a PCB fastened to a PCB mounting plate having a resilient flange configured for clamping engagement with a portion of the PCB containing PCB contacts; and a slide plate slidably movable relative to the cradle along an axis parallel to the longitudinal axis of the printhead assembly. The slide plate is configured for camming engagement with the resilient flange and sliding movement of the slide plate urges the resilient flange into clamping engagement with the portion of the PCB containing PCB contacts, thereby electrically connecting the PCB contacts with the printhead.

Print module with sliding PCB engagement mechanism

A print module includes: a cradle defining a longitudinal cavity; an elongate printhead received in the longitudinal cavity, the printhead having a row of printhead contacts; a PCB slidably movable relative to the cradle along a first axis perpendicular to a longitudinal axis of the printhead; and an actuator handle. The actuator handle is configured for reciprocally lowering and raising the PCB and urging the PCB contacts into engagement with the printhead contacts, thereby forming electrical connections between the PCB and the printhead. The PCB electrical contacts are urged along a second axis perpendicular to the first axis and the longitudinal axis of the printhead.

Print module with two-stage PCB engagement

A print module includes: a cradle having a nest for receiving a printhead; an elongate printhead received in the nest, the printhead having first and second ink ports at opposite longitudinal ends thereof; and a supply assembly slidably movable relative to the cradle along an axis perpendicular to a longitudinal axis of the printhead. The supply assembly includes first and second ink couplings positioned for complementary engagement with the first and second ink ports of the printhead and a depressor positioned between the first and second ink couplings. The printhead has a portion configured for complementary engagement with the depressor, such that lowering of the supply assembly urges the printhead towards the nest via engagement of the depressor with the printhead.

Printhead engagement mechanism for long printheads

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 positioned in the longitudinal cavity; and 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. The printhead is removable from the cradle via longitudinal sliding movement of the printhead through the access opening.

Print module having guide for protecting printhead during longitudinal side-loading

A print module includes: a cradle having a nest for receiving a printhead; an elongate printhead received in the nest; a supply assembly slidably movable relative to the cradle along an axis perpendicular to a longitudinal axis of the printhead; and a lift mechanism for reciprocally lowering and raising the supply assembly towards and away from the printhead, the lift mechanism having a single actuator handle positioned at the first end of the cradle. Movement of the actuator handle causes engagement or disengagement between the printhead and the supply assembly via sliding movement of the supply module relative to the cradle.

Print module with movable PCB and ink couplings actuated by lift mechanism

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.

Print module having pivotable printhead carrier

A print module includes: a cradle defining a longitudinal cavity and an access opening at a first end of the longitudinal cavity; a printhead carrier positioned in the longitudinal cavity, the printhead carrier comprising a longitudinal rail; and an elongate printhead having a longitudinal overhead hanger for complementary longitudinal sliding engagement with the rail. The printhead is removable from the cradle via longitudinal sliding movement of the printhead relative to the printhead carrier through the access opening.

Printhead cradle with longitudinal rail engaging printhead overhead hanger

A print module including: a cradle having a longitudinal cavity; an elongate printhead assembly positioned in the longitudinal cavity; and a supply assembly slidably movable relative to the cradle along an axis perpendicular to a longitudinal axis of the printhead assembly, the supply assembly having one or more ink couplings for fluidic connection to a printhead of the printhead assembly. The cradle includes a fixed limiter configured for abutment with a reaction plate of the printhead assembly so as to limit movement of the printhead assembly during movement of the supply assembly away from the printhead assembly.

Print module with tongue engagement of printhead carrier for fluidic disconnection

A print engine includes: a chassis; a cradle attached to the chassis, the cradle defining a longitudinal cavity having an access opening at a first end thereof; an elongate printhead received in the longitudinal cavity via the access opening; and a wiper carriage configured for longitudinally wiping the printhead. The wiper carriage is parked at a second end of the cradle opposite the first end.

Print engine with cradle and wiper arrangement

A print module includes: a cradle having a nest for receiving a printhead; an elongate printhead assembly received in the nest, the printhead assembly including a printhead having first and second ink ports at opposite longitudinal ends thereof; and a supply assembly slidably movable relative to the nest along an axis perpendicular to a longitudinal axis of the printhead. The supply assembly includes first and second ink couplings fast with the supply assembly and connected to respective first and second ink ports. The print module is configured such that movement of the supply assembly disconnects the second ink coupling prior to disconnection of the first ink coupling.

Print module having sequentially disconnected ink couplings

A print module including: a cradle having a longitudinal cavity; an elongate printhead carrier positioned in the longitudinal cavity, the printhead carrier having a first end and a second end, the printhead carrier being pivotable relative to the cradle about a pivot axis the second end; a supply assembly slidably movable relative to the cradle along an axis perpendicular to a longitudinal axis of the printhead carrier, the supply assembly having ink couplings for fluidic connection to a printhead received in the printhead carrier; and a mechanical linkage interconnecting the first end of the printhead carrier and the supply assembly. Reciprocal movement of the supply assembly moves the printhead carrier between a tilted position and a non-tilted position.

Print module containing printhead tilting mechanism

A print module including: a cradle having a longitudinal cavity; an elongate printhead assembly positioned in the longitudinal cavity; a supply assembly slidably movable relative to the cradle along an axis perpendicular to a longitudinal axis of the printhead assembly, the supply assembly being configured for supply of ink and/or electrical signals to a printhead of the printhead assembly; and a locking mechanism having a slide plate slidably movable relative to the cradle along an axis parallel to the longitudinal axis of the printhead assembly. The slide plate has one or more keepers and each keeper is engageable with a locking pin projecting from the supply assembly.

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Singapore, Singapore

Soon Keat Fah