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HP LaserJet III-Error code 12 "Printer Open" problem



 
 
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  #1  
Old February 11th 04, 02:46 AM
my machine
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Default HP LaserJet III-Error code 12 "Printer Open" problem

This printer was just put into service 3 years ago although it was
made in 1990. It is new out of the box and has printed less than 1000
pages. When turned on it cycles through the self test and into the
printer open error. I have checked the obvious items including all
switches, DC voltage, most cable connections, ground connections and
have changed cartridges. I would scrap this machine except it is like
new, it's fast ,quite, and I have several extra cartridges. Anybody
have any ideas on fixing this problem?
  #2  
Old February 11th 04, 05:41 AM
RWatson767
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HP LaserJet III-Error code 12 "Printer Open" problem

I have a III and a IIID and I would take a look at the cover interlock switch
to see if it is operating. The switch is just inside the cover opening on the
right front as you stand in front of the printer. Try operating the switch with
a match stick a few times.

Then with the cover closed try pushing on the cover right above the switch. If
this does not work you will probably have to adjust the cover switch.
If you are the type it might be prudent to acquire a used printer to practice
doing things like adjusting a switch. It will be rewarding.
Bob AZ
  #4  
Old February 13th 04, 08:00 AM
RWatson767
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DEC
HP LaserJet III-Error code 12 "Printer Open" problem


Thanks again for your input.

I can get you one cheap but the shipping could be a bear. But it is midnight
and I will sleep on the rest.

Bob AZ
 




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