Bootloader Integrity Check Failed
Last updated: February 21, 2026
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81:01 Error
The printer's bootloader, essential for starting the operating system, failed an integrity check. This critical error prevents the printer from initializing its core functions.
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Power cycle the printer: Turn it off, unplug the power cord for 60 seconds, then plug it back in and turn it on.
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If the error persists, attempt to force a firmware update via USB. Ensure you are using the correct firmware for your specific printer model.
Model-Specific Notes: • PageWide XL: This error often points to a formatter board issue. Ensure the service USB drive is properly prepared with the latest firmware before attempting recovery. • T1708/Z6: Check the formatter board's LED indicators during boot for additional diagnostic clues. A solid amber LED could indicate a bootloader issue. Expert Insight: This is a low-level firmware error. If a standard USB firmware update fails to resolve it, the formatter board is almost certainly defective. Before replacing, ensure the power supply unit is stable, as unstable power can sometimes cause boot failures.
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A numeric or alphanumeric code displayed on the printer's front panel or in diagnostic logs that identifies a specific hardware or software malfunction.
The complete system that stores, transports, and delivers ink from the cartridges to the printheads, including tubes, valves, and pressure regulators.
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