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HP LaserJet Enterprise M725MFP Printer

I've suddenly received an error message on an HP LaserJet Enterprise M725MFP Printer. The message displayed was saying "Communication Lost " in several languages. since then the printer was no longer usable. However, a colleague replaced the formatter and it worked again. So, I would like to know what caused it.

1 REPLY 1
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the communication lost error indicates that an error in connection between the formatter and the control occurred. In this case it was caused by a bad formatter (electronics do fail). It can also be caused by a bad cable that connects the two parts or by a bad control panel.

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