Subj : H-P DeskJet 639C
To   : Roy J. Tellason
From : Matt Mc_Carthy
Date : Thu Aug 11 2005 01:48 am

10 Aug 2005, 04:29, Roy J. Tellason (1:270/615), wrote to Matt Mc_Carthy:

Hi Roy.

 MMC>> The linefeed signals are either not getting from the processor 
 MMC>> to the driver chips, or from the driver chips to the motor.  If 
 MMC>> you can 'unplug' or 'release' the cables and re-seat them with 
 MMC>> no benefit, it is probably going to be too difficult to trouble
 MMC>> shoot, and I would have to agree with the 'boat anchor' 
 MMC>> scenario! :-((

 RJT> Jeez,  doesn't anybody fix this stuff any more?  (Feeling more 
 RJT> and more like this skillset I've been honing for decades now is 
 RJT> completely obsolete...)

Heh!  Myself, I'm slowing a bit, just have too much 'broken stuff' that I know 
I'll never live long enough to get around to, and even if I did, no one would 
want that old 'obsolete' stuff.   :-((

The last dot matrix I fixed was one I was printing my daughter's school papers 
on when it died on a Sunday night!  [25 years ago!].  I _had_ to get it going, 
and found one section of a quad driver was dead.  I cut out the dead section 
and replaced it with a TiP transistor, and it is still running.  I've since 
collected a fair bunch of working ink jets, and they are much easier to move 
around to wherever I need them.  Since I only print about one page per month I 
don't keep any printers connected to the computers.  

I actually changed from the dot matrix to the ink jets when I discovered my 20 
year old supply of dot matrix ink had all jelled up in the bottles!  I tried 
several solvents to get it flowing again, but not much luck.  Not even WD-40 
thinned it!

Hey, when WD-40 fails, it's time to quit!   :-))


     Good luck...  M.

--- Msged/386 TE 06 (pre)
 * Origin: Matt's Hot Solder Point, New Orleans, LA (1:396/45.17)

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