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Error 94:10Medium Severity

Embedded SpectroPhotometer (ESP) contaminated by aerosol

Last updated: February 22, 2026

Severity:Medium Severity
Affected:0 models
DIY Fix:Possible
System error code: 86:01 on HP T790 T1300 T2300 Designjet Printer

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System error code: 86:01 on HP T790 T1300 T2300 Designjet Printer

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What This Error Means

Embedded SpectroPhotometer (ESP) contaminated by aerosol

Step-by-Step Troubleshooting Guide
  1. 1

    Replace the ESP, Perform the ESP basic test (CLC) to ensure that the replaced part is working correctly.

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Related Glossary Terms
Spectrophotometer

A precision instrument that measures the spectral properties of color. Some DesignJet Z-Series printers include a built-in spectrophotometer for automatic color calibration.

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