Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@y..., "jimhayes361" 
<jimhayes@j...> wrote:
(snip)

> 
> 1) If you remove the carts and examine the gold tines in the 
printhead 
> carefully, are any out of alignment, touching each other, twisted, 
> bent too far out or in, etc? I have heard that chips that fall out 
of 
> the cart can cause the tines to get bent when cart is removed. 
Maybe 
> something less serious but still enough of a disruptive force on 
> contacts has caused a misalignment (just takes one contact skewed). 
I 
> now use a small soldering tip to melt the nubbins on the cart over 
the 
> chips. Also remember that even if not shorting, what will happen 
when 
> a cart is put in? Will the tines depress so as to short or not make 
> contact when a cart is inserted?

BINGO!! I had looked before but didn't see that on the color socket 
of the first printer one of the pins is bent completely up and into 
the groove above.

On the brand new printer one finger in the black cartridge socket is 
slightly crimped.

Both are in a position to line up with the little chip holding nubs 
on the carts.

They don't look user repairable. #@%&#!!! Oh boy. $1,000 worth of 
printers and the warantee probably isn't going to cover it.

And now I need to buy a soldering! <G> :-(!

Well at least I know what the problem and solution is. Many thanks!

Martin



> 
> 2)I wish I remembered the details of the post, but someone once had 
an 
> 1280 with blinking lights, going weird, motionless. There was some 
> sequence of button pushing/holding that if done just right, 
released 
> the printer from this and it returned to normal.
> 
> 3) Static electrical discharge to the chip? Or are there pits on 
the 
> gold plated surface of the chip board from repeated QB7 resetting? 
> Frankly, since the Epson carts didn't work either, my bets are on 
#1 
> above, if any.
> 
> Martin let me know about this, it worries me too...
> Jim H.