This document is for HP LaserJet Pro MFP M28a, M29a, M30a printers.
The following sections describe error conditions with blinking (flashing) lights displayed on the printer control panel, followed by solutions for each error. Find the blinking light pattern that displays on the control panel, and then follow the steps to resolve the issue.
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ID Copy button
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Start Copy button
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Supply light
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Power button and light
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Attention light
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Cancel button
