"Alexandre Domingos F. Souza" wrote:
>
> >Funny you should say that....
> >I have over a dozen of those LaserJet III printers at work. All broken! All

ALL the broken ones I have (15 odd) have a problem with paper pickup.
Replacing the rubber roller fixes them, but there has GOT to be a better
way
since it is so time consuming to replace.
Has anyone had any success with using a 'rubber renue' compound
on the roller?
The MG chemicals 'Rubber Renue' works for all of 2 days and then it's
back to iffy paper pickup. Is there something better out there?

> >with the same symptom: Fuser error or paper jam message. It sounds like the
> >capacitors in the AC power supply have dried out.
> >Days of swapping fusers and toner carts, and I would gladly trade them all
> >for a Deskjet 500!
>
>         This is the simplest problem I've ever seen in all printers I fixed, And the dumbest one. HP when doesn't do it in the entrance, does it in the exit ;o)
>
>         This printer has the fuser controlled by an SCR. A BT136 or something. This BT is not heatsinked. So it fails. And gives this error you are seeing.

Thanks for the detailed instruction on repair. If I find a roller
solution, I'll add the heatsink, but I haven't seen this problem
in any of 50 odd LJ2/3 printers around here. Must be the 120V
power vs 220V.

>         I've fixed some 100s of HP2 and HP3 printers with the same problem. That's the only thing that happens on these printers, beyond fuser destruction. Nice printer to have! ;o)))

So what are you doing differently that you don't have pickup roller
problems? A4 paper isn't THAT much smaller than 8.5x11.

>
>         BTW, I need the A4 paper cassete and the fuser assembly or only the

Isn't the fuser the same for ALL variations of this series (except for
the
lamp voltage)?

>fuser roller (the one covered with teflon) of the HP3. In USA it seems to be

The roller for the HP2 is the same as the HP3. There are many USA
suppliers
who will sell it to you cheaply. Hopefully postage isn't too high
to Brazil.

>trash, in Brazil it is expensive to the hell! Maybe some friend from the list have a spare around ;o))) My HP3 became a dead brick, and I miss her working :o(((

Yes, they are really solid printers, which is why I've collected
many that were being 'trashed' in the hope that I could find a
rubber roller solution that lasted. This is a common problem so
surely there is a solution for it.

Robert

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