Re: HP Won't Power On
- From: w_tom <w_tom1@xxxxxxx>
- Date: Mon, 02 Jul 2007 10:26:36 -0700
On Jul 2, 11:06 am, tober...@xxxxxxxxx (KW) wrote:
I have an HP Business Inkjet 1200. I bought it about a year ago, but it
was a refurb. It's always worked well.
We had a thunderstorm last night, and the power went out. I have the
printer plugged into a surge suppressor, but I wasn't able to shut down
the computer before the power outage. Nothing else seems to be
affected.
I can't get the printer to power on. When I press the power button,
nothing happens.
Protectors that don't have a dedicated 'less than 10 foot'
connection to earth may even contribut to damage of the adjacent
appliance. It may then earth that surge, destructively, through a
printer. Your printer suffered damage when on a plug-in protector?
Yes, we have seen that often. And it makes no difference whether the
appliance is powered on or off. Destructive surges seek earth
ground. Either they are earthed before entering the building, or they
may find earth ground, destructively, through household appliances.
Any protection that works adjacent to the printer is already inside
the printer. But adjacent protectors can even shunt a surge,
destructively through that protection.
What does a protector do? Does it stop or absorb what three miles
of sky could not? That is what plug-in protectors promote.
Reality: protector simply connects all wires together during a
surge. If one wire is 'less than 10 feet' to earth ground, then a
surge is earthed; no damage. But if adjacent to the appliance, then a
surge simply has more wires to find earth ground.
Where did that plug-in protector even claim to provide protection in
numerical specs? Don't take my word for it. Where in that full page
of specs, where does it list each type of surge and numbers for that
protection. It does not. It hopes you will *assume* all surges are
same.
Take a $3 power strip. Add some $0.10 parts. Sell it for $25 or
$150. With profit margins that high, then why would they be fully
honest. Better is to promote myths even in the newsgroups.
Powering off or leaving it on makes no electrical difference. Do
you really believe that tiny gap in a switch will stop what three
miles of sky could not? Effective 'whole house' protectors have that
essential and dedicated wire to earth ground. Effective 'whole house'
protector earths before a surge can enter the building. No earth
ground means no effective protection. 'Whole houes' protectors feature
that eseential earthing wire. Even your power strip protector
'forgot' to claim protection in its numerical specs.
Power outages don't damage any electronics. But the surge that
might precede that outage can create damage. Your plug-in protector
may have earthed a surge destructively through your printer. That is
common when using protectors without a short and dedicated connection
to earth. You should consider 'whole house' protectors from
manufactures with responsible names. About $1 per protected appliance
verses how much for that plug-in protector? Effective protectors even
cost tens of times less money.
.
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- From: KW
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