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- [Instructor] All right.

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Part two of troubleshooting
common printer issues.

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And you can see here,
we have an error code.

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You gotta look for error codes.

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If there's a specific error
shown on the printer's LCD,

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read it and understand it.

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Now, back in the day, they
had these crazy codes,

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like you know, PC load letter and stuff,

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and it was pretty
cryptic to put it nicely,

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but now the messages are so,
they're such plain English,

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and they're so easy to
understand that, you know,

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usually it'll tell you
exactly what the error is

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and how to fix it.

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And on some printers it
might be an error number,

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and you have to check your
printer's documentation

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to find out what the error means.

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But here we see an error message.

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Wireless will not work

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with an ethernet cable
connected to the printer.

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To use wireless, remove
the ethernet cable first.

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So a lot of printers out there,

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especially multifunction printers,

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they can either use wireless
or wired connections.

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You can't use both.

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And why would you wanna use both?

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Not really necessary because
if your printer's connecting

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in a wired format out to your
SOHO router or your switch,

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then you most like, if
you have other devices

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that are using wireless, you know,

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you most likely have some
type of wireless access point

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that connects to that switch as well.

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So one or the other is fine.

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And the reason this came up is
because I connect my printers

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with a network connection,
a wired network connection,

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so that I can limit the
amount of wireless in my lab,

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so I don't have as much interference.

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And what I did was I just
went to the settings and tried

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to set up a wireless network.

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And it tells you right off the bat.

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Wireless will not work when
ethernet cable is connected.

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So read the error message.

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It'll probably tell you
exactly what the issue is.

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And again, use your
printer's documentation,

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either in print format or
online to find out more.

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You might get specific messages
like out of memory errors,

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or low memory message.

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And so these are important.

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You'll see these quite often.

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And you wanna check,
first of all, the RAM.

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First of all, you wanna check

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whether the user's computer
is spooling documents.

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The setting with the least chance

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of this error happening

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is the start printing
immediately spool setting.

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And if we go to our
devices and printers here,

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and go to this printer and right-click it,

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and go to printer properties,

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and go to the advanced tab, we'll see

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that the radial button
for spool print documents

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so program finishes
printing faster is selected,

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and the option is to start
printing immediately.

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That's the default in Windows,

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and it's the best way
to reduce the chances

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of an out of memory error.

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If you have it set to start printing

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after last page is spooled,

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then everything is spooled,

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and then everything is
sent to the printer.

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worse than that, is printing
directly to the printer.

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And then the whole file just goes right

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to the printer with no
spooling whatsoever.

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And, you know, in that
case you better have a lot

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of RAM on your printer.

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So in some cases, the
printer's RAM itself might need

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to be upgraded.

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And whenever installing RAM to a printer,

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take all the same precautions you would

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when working on a PC.

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So, you know, but always
check that spooling.

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Whoever's having, whoever
created that issue

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on the printer, you know,
the message shows up

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on the LCD on the printer, but
whoever created that issue,

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whoever did the actual last print job,

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check their spooling on their system.

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So you could take advantage
of the power of Windows,

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and that desktop computer.

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And finally, no image on the
printer display whatsoever.

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If you have no image here,

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well you wanna check your connections.

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You wanna check if the
printer is in sleep mode

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or off altogether and
check the power cable.

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In rare cases, there's
an internal connector,

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a flex cable that connects this display

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to the main circuit board,
the PCB in the printer.

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So watch out for no image on
a printer display whatsoever.

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And so that's about it for this portion

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of the troubleshooting for printers.

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Error codes, the LCD,
it can tell you a lot,

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and make sure you use the documentation

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for the printer as well.

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And so that ends this sub lesson.