Controlling a fluid firing unit of a printhead
AssigneeHewlett-Packard Development Company, L.P.
InventorsAna Cristina Garcia Alvarez, Antonio Gracia Verdugo, Mauricio Seras Franzoso
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Abstract
In some examples, a method includes, in response to a fluid firing unit being operated according to a normal printing mode, applying a first voltage to the fluid firing unit to fire the fluid firing unit during a printing operation. The method further includes determining, using a sensor, whether a predetermined condition is met, and in response to determining that the predetermined condition is met, operating the fluid firing unit according to a recovery mode in which a second voltage higher than the first voltage is applied to the fluid firing unit to clean the fluid firing unit.
Claims20
A method implemented by a printer to control a fluid firing unit of a printhead, the method comprising:
- in response to the fluid firing unit being operated according to a normal printing mode, applying a first voltage to the fluid firing unit to fire the fluid firing unit during a printing operation;
- determining, using a sensor, whether a predetermined condition is met;
- and
- in response to determining that the predetermined condition is met, operating the fluid firing unit according to a recovery mode in which a second voltage higher than the first voltage is applied to the fluid firing unit to clean the fluid firing unit.
A non-transitory storage medium storing instructions that upon execution cause at least one processor to:
- cause application of a first voltage to a fluid firing unit to cause operation of the fluid firing unit according to a normal printing mode;
- determine, based on information from a sensor, whether a predetermined condition is met;
- and
- in response to determining that the predetermined condition is met, cause application of a second voltage higher than the first voltage to the fluid firing unit to operate the fluid firing unit according to a recovery mode in which the fluid firing unit is cleaned.
A printing system comprising:
- a sensor;
- and
- a controller to:
- apply a first voltage to a resistor in a fluid firing unit to fire the fluid firing unit during a printing operation in a normal mode;
- receive information from the sensor;
- determine, based on the information from the sensor, whether a predetermined condition is met;
- and
- in response to determining that the predetermined condition is met, apply a second voltage higher than the first voltage to the resistor in the fluid firing unit to clean the fluid firing unit in a recovery mode.
Dependencies are inferred from the claim text.