Homebrew PCBs

On Sat, 17 Feb 2007 23:29:29 +0100, wnnelson0 <wnnelson@...>  
wrote:

> Possibly the ink is not being pulled into
> the head? After my last try when I went to print I heard a sizzling
> from the print head (very bad sound). This was the end of any
> printing. Must have fried the board in the print head somehow. I may
> try one more time. Epson still has refurbished C88s for $50 with free
> shipping. I have a new mod in mind where I will not cut the frame but
> make new offset bushings for the roller bars to lower them. This
> should give plenty of clearance for a 1/16" carrier and 1/16" board.


Yes, the ink not being pulled in i a distinct possibility. Was the vacuum  
system on your printer working (hose not clogged etc..)?

Do you think you got some cleaner or something into the electronics from  
the outside, or do you think something inside the head broke and caused a  
leak?

$50 seems a bit much for a printer that's just going to be hacked up. Many  
dead ones from ebay suffer from a clogged vacuum hose, which is easy to  
fix. Typical symptoms are "i changed the cartridges, and since then it  
does not print". This always happens when the vaccum is clogged, because  
no new ink is sucked down (and piezo heads seem bad at pumping air). Sure  
you may get one with a head that can not be fixed, but if that happens i  
can still buy a lot of 1eur printers for $50, even with shipping if need  
be.

ST