Control panel message Description Recommended action
Comm. error The product experienced a communication
error while attempting to send or receive a
fax.
Verify that the fax phone line is working
correctly.
Try sending or receiving the fax again.
Slow down the fax speed. Turn off error
correction mode.
For more information, check the fax problem
solving section of this manual. See
Solve fax
problems (HP LaserJet Professional M1210
MFP series only) on page 162.
If the error persists, replace the fax PCA. See
Fax PCA on page 70.
Device error
Press [OK]
The product experienced an internal
communication error.
This is a warning message only. Job output
might be affected.
Door open The cover above the print cartridge is open. Close the cover.
Engine comm. Error The product has experienced an internal
hardware error.
1. Turn off the power by using the power
switch, and then wait at least 30
seconds.
2. If a surge protector is being used,
remove it. Plug the product directly into
the wall socket.
3. Turn on the power and wait for the
product to initialize.
If the error persists, check the FFCs, wire
harnesses, and connectors between the
formatter and the engine controller PCA.
Fax recv. error The product was unable to receive an
incoming fax.
Verify that the fax phone line is working
correctly.
Ask the person who sent the fax to send it
again.
Make sure that the connectors on the engine
controller PCA and fax PCA are fully seated.
For more information, check the fax problem
solving section of this manual. See
Solve fax
problems (HP LaserJet Professional M1210
MFP series only) on page 162.
If the error persists, replace the fax PCA. See
Fax PCA on page 70.
Fax Send error The product was unable to send the fax. Try sending the fax later, or confirm with the
recipient that the receiving fax machine is
ready.
For more information, check the fax problem
solving section of this manual. See
Solve fax
problems (HP LaserJet Professional M1210
MFP series only) on page 162.
If the error persists, replace the fax PCA. See
Fax PCA on page 70.
124 Chapter 2 Solve problems ENWW
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