Error 27:7:01Medium Severity
Calibration failed poor performance of the MK/Red Gray Slot 7
Last updated: February 22, 2026
Severity:Medium Severity
Affected:0 models
DIY Fix:Possible
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System error code: 86:01 on HP T790 T1300 T2300 Designjet Printer
System error code: 86:01 on HP T790 T1300 T2300 Designjet Printer See this video: https://youtu.be/Lhb-g4gKpKE Carriage ...
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What This Error Means
Calibration failed poor performance of the MK/Red Gray Slot 7
Step-by-Step Troubleshooting Guide
- 1
This may impact your print quality. If it becomes unacceptable in the future, clean all printheads and check their status., Replace Printhead
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