A 49.WX.YZ error message displays on the control panel of an HP LaserJet Enterprise or HP PageWide Enterprise printer with HP FutureSmart firmware, where 49 indicates a firmware communication error, and W, X, Y, and Z are variable values.
note:HP extensively tests printer firmware before release to reduce the occurrence of 49 errors. Typical end users will rarely encounter one.
A 49 error can be intermittent or persistent:
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Intermittent 49 errors - Occur only part of the time with the printer alternating between functioning correctly for a period of time and then not functioning again. These errors are typically cleared by turning the printer off, and then on.
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Persistent 49 errors - Occur repeatedly after one or more attempts to solve the issue. These errors will not clear after turning the printer off, and then on.