HP Color LaserJet CM1015/CM1017 MFP Series - User Guide
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... initialize. If a surge protector is being used , remove it. Use the power switch to turn the device on . The MFP door is open Engine communication error Description Recommended action The device has experienced a problem with its internal fan. This is required. Turn off the power by using ... Control panel message 57 Fan Error Turn off then turn on 59.xx Error 79 Error Turn off the device, remove the memory DIMM, reinstall the DIMM to verify that it is seated properly, and then turn on the device. No action is required. See HP Customer Care or the support ...
... initialize. If a surge protector is being used , remove it. Use the power switch to turn the device on . The MFP door is open Engine communication error Description Recommended action The device has experienced a problem with its internal fan. This is required. Turn off the power by using ... Control panel message 57 Fan Error Turn off then turn on 59.xx Error 79 Error Turn off the device, remove the memory DIMM, reinstall the DIMM to verify that it is seated properly, and then turn on the device. No action is required. See HP Customer Care or the support ...