US 10,611,173 B2 · Fluid ejection device with fire pulse groups including warming data

Abstract

A fluid ejection device including a plurality of primitives each having a same set of addresses and including a plurality of fluid chambers, each fluid chamber corresponding to a different address of the set of addresses and including a firing mechanism. Input logic receives a series of fire pulse groups, each fire pulse group corresponding to an address of the set of addresses and including warming data having an enable value or a disable value and a series of firing bits, each firing bit corresponding to a different primitive and having a firing value or a non-firing value. For each firing bit of each fire pulse group, when the warming data has the enable value, activation logic provides a warming pulse to the firing mechanism of the fluid chamber corresponding to the firing bit when the firing bit has the non-firing value.

Claims15

Dependent claims

A fluid ejection device comprising:

a plurality of primitives, each primitive to receive a same set of addresses and each including:
a plurality of fluid chambers, each fluid chamber corresponding to a different address of the set of addresses and including a firing mechanism;
input logic to receive a series of fire pulse groups, each fire pulse group corresponding to an address of the set of addresses and including warming data having an enable value or a disable value and a series of firing bits, each firing bit corresponding to a different one of the primitives and having a firing value or a non-firing value;
and
activation logic, for each fire pulse group, for each firing bit, when the warming data has the enable value, to provide a warming pulse to the firing mechanism of the fluid chamber corresponding to the firing bit when the firing bit has the non-firing value and a temperature of the plurality of primitives is at least equal to a default temperature and less than a warming temperature.

2 more elements

A fluid ejection system comprising:

a fluid ejection device including:
a plurality of primitives, each primitive to receive a same set of addresses and each including:
a plurality of fluid chambers, each fluid chamber corresponding to a different address of the set of addresses and including a firing mechanism, each fluid chamber being one of a pump and a nozzle;
input logic;
and
activation logic;
and
a warming monitor to receive a series of fire pulse groups, each fire pulse group corresponding to an address of the set of addresses and including a warming data having a disable value and a series of firing bits, each firing bit corresponding to a different one of the primitives and having a firing value or a non-firing value, the warming controller to:
determine a firing profile for each pump of each primitive based on values of corresponding firing bits of corresponding fire pulse groups;
identify pending zones of heavy recirculation based on the firing profiles;
and
set the warming data to an enable value in selected fire pulse groups when at least one pending zone of heavy recirculation is identified.

9 more elements

Dependencies are inferred from the claim text.

Fluid ejection device with fire pulse groups including warming data

Life of this patent

Fluid ejection device with fire pulse groups including warming data

Life of this patent

Abstract

Claims15