Jet printer calibration

Calibration apparatus for an interleaved jet printer including a recording medium support having a support surface, and at least two interleaved print nozzles which are each operative to emit a jet of a same ink toward the support surface and are simultaneously movable along the support surface in a translation direction, comprising:

• a probe positioned proximate the support surface and in a position within a print range of all of the print nozzles,
• detection circuitry responsive to the probe, and
• relative calibration logic responsive to the detection circuitry and having a relative calibration result output for calibration values derived from detection of the same ink from the different print nozzles and expressing print positions for the print nozzles relative to each other.

Calibration apparatus for a jet printer including a recording medium support having a support surface, and at least one nozzle that is operative to emit a jet toward the support surface and is movable along the support surface in a translation direction, comprising:

• a probe positioned proximate the support surface that includes a pair of surfaces separated at least in part by a gap, and further including a waste removal path defined by the probe,
• detection circuitry responsive to the probe, and
• calibration logic responsive to the detection circuitry and having a calibration result output.

A calibration method, comprising:

• receiving information from different portions of a probe located in a jet trajectory of a moving jet print nozzle,
• deriving calibration information from the received information, and
• adjusting the deposition of writing fluid by the print nozzle based on the information derived in the step of deriving.

A calibration method, comprising:

• causing a jet from a first print nozzle to interact with sufficient probe edges to obtain a position of the first print nozzle in two dimensions,
• causing the jet to interact with a plurality of further probe edges,
• deriving a calibration result value form both of the steps of causing.

A calibration apparatus, comprising:

• means for receiving information from different portions of a probe located in a jet trajectory of a moving jet print nozzle,
• means for deriving calibration information from the received information, and
• means for adjusting the deposition of by the print nozzle based on the information derived in the step of deriving.

A calibration apparatus, comprising:

• means for setting a jet deflection to different settings,
• means for causing the jet to interact with the probe at its different settings, and
• means for deriving swath-width calibration information from the means for causing.

A calibration apparatus, comprising:

• means for causing jets from successive print nozzles to interact with a probe,
• means for detecting signals from the probe, and
• means for deriving a relative calibration result from the means for detecting

A calibration apparatus, comprising:

• means for causing a jet from a first print nozzle to interact with sufficient probe means to obtain a position of the first print nozzle in two dimensions,
• means for causing the jet to interact with a plurality of further probe edges, and
• means for deriving a calibration result value form both of the means for causing.