Digital BW, The Print

I'm glad you got it to work. I also know that a similar procedure is 
outlined by a MIS customer on their site. Here is what I know, from an 
 Epson 760 tech repair manual:

Page 78 thru 88, roughly, are devoted to aligning/ realigning the 
printhead with special software, licensed only to Epson repair techs 
(I tried to buy a copy, then beg one<g>), and only running on Windows 
98 thru the LPT port. This is a signifigant fraction of the manual, 
which shows you how to take apart and build a 760 from pieces. BTW, 
the software is designed for not only the 760, but the 860 and the 
1160 as well.

You have to do something called a "Printhead Angular Adjustment" and a 
"Bidirectional Adjustment". If you install a new printhead, you also 
must do an "Initial Ink Charge" followed by inputting a "Printhead 
Voltage ID" into the software. If you remove more things like the 
carriage unit, there are more adjustments.

The software also lets you reset the waste-ink counter, which counts 
how many times the printer has gone thru cleaning cycles. After a very 
huge number, the printer is programed to disable itself. Not many 
people know this, so don't do excessive cleanings<g>

The software also can check info on the "USB ID" and "Market 
Destination". I think this latter keeps track of where the printer was 
orignally meant to be sold.

The alignments can be easily done with printouts, a screwdriver- but 
you need the software too. As to whether the alignments are really 
needed or not-you'd have to make up your own mind.
Jim H.  






--- In DigitalBlackandWhiteThePrint@y..., Keith Cooper 
<yahoogroups@n...> wrote:
> Hello
> 
> Some time ago I was given a dried up Epson 800. With nothing to lose 
I
> removed the heads and after soaking them in a 5mm deep pool of 
Isopropyl
> alcohol for a few hours, put them in an ultrasonic cleaning bath (I 
use it
> for mapping pens and lend it to friends for jewellery :-))
> 
> I also used a small syringe and some tubing to force alcohol through 
the
> jets
> 
> After a few minutes of zapping in the bath, they were dried and put 
back in
> the printer - and worked fine (and continue to do so)
> 
> Was I lucky that they still worked?
> How robust are the heads?
> 
> There were no alignment problems afterwards, they seemed to fit back 
in very
> positively.
> 
> bye for now   
> 
> Keith Cooper