> Jeff Medkeff wrote:
>
>
>
>
> > I have a heavy shooting schedule for the next couple days, then I'll
> get
> > back to the C86 debugging.
>
> Ok, I lied. I couldn't keep my hands off of it. I've hit on something
> that reduces the dotting, at least in the margin areas of the image.
>
> I got a copy of driver version 5.4 and sadly, it made no difference.
>
> However, I observed that the most affected area of my print was the
> right-hand margin (I was printing a 5x7 on 8.5x11 stock). There are
> probably five times the number of dots in the right margin, compared to
> any other margin. Watching the printer, I noted that the right margin
> was 'overflown' by the print head on each cycle, while the left margin
> was overflown only every few cycles. The top and bottom margins hardly
> got overflown at all.
>
> That got me thinking about high speed mode, which I determined I had
> unchecked. I think Paul Roark mentioned on his webpage that high speed
> mode is usually OK, so I checked it and reprinted.
>
> In high speed mode, the right margin doesn't get overflown by the print
> head nearly as much. And on the print, there were far fewer black dots
> in the right margin. In a 2" square area I selected, there were ~80 dots
> in the low-speed mode print, and five dots in high-speed mode print.
> This is getting to the point where you have to start looking for them
> pretty carefully to see them.
>
> So, Marty, have you been using high-speed mode?
>
> I'm not sure whether the dotting in light image areas is reduced or not.
> I don't see why it would be, but dots in toned image areas are harder
> to see. I'll have to do some further experimentation to convince myself
> either way.
>
> Anyone using C86 with EZ but not reporting small random black dots - I'd
> be interested to know whether wide right margins are affected by this
> dotting problem when you print with high-speed turned off. In lieu of
> that, if one of you wants to see the experimental prints I just made,
> I'd be happy to mail them somewhere.
>
> --
> Jeff Medkeff
> Eagle River, Alaska
>
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