Question about HP LaserJet 3330MFP All-In-One Printer
The fax machine has worked well, until a couple days ago. When a call is coming in, it show incoming call, then shows no fax received. When trying to send a fax, it shows no fax sent. I hear no dial tone, and see no error messages. Tried T.30 Protocol Trace which shows0.00 OFFHOOK, 6.49 CNG and 10.00 ONHOOK. No other information. A new fax machine works well on the dedicated line, so I believe the problem is in the fax machine. Any suggestions?
Your Line Interface Unit (L.I.U.) is bad. The part # is C9138-60001. Google for part availability.
1 Open or remove the left side door.
2 Remove one screw at the left of the formatter board.
3 Disconnect the flat flexible cable from the connector.
4 Rotate the LIU around the hooks to remove.
It's about a 5 min job. Good Luck.
Posted on Feb 27, 2008
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