If the connection
between your printer and computer breaks, then error code 40 occurs in the HP
Printer, and then you cannot give any print command. You can resolve this
error by implementing the following steps:
●
Check whether your system and HP printer have
the same baud rate.
●
You can try to reset the network by turning off
the HP Printer.
● Make sure that all the
printer cables are connected with right Enhanced Input/Output ports.
● Even check that the EIO is seated correctly or not, and
nothing is disturbing it.
● Serial configuration of your printer should be the same as
that of the system.
If you have any difficulty while resolving the issue at
hand, then you can call HP Printer Tech Support Number that is available at all hours.
Also Read: Fix Error Code 0xc19a0003 In HP Printer
