Re: banding?

Many of the Epson printers have banding built in, this is especially
true when printing on Pictorico. We have a 9800 (A $5000.00 printer) and
some negatives show banding. My son kevin runs that division of our
company and has had serious discussions with Epson on this problem. The
admit it but say that we are using unauthorized materials i.e. Pictorico
and the printer is not designed to make negatives. I'll cc kevin and he
may chime in on this.

--Dick Sullvian

Donald Qualls wrote:
> Damiano Bianca wrote:
>> I do not know if the name is this (or if it is other). Job in Win XP,
>> epson 2100, original inks. Printing in A3+ I find an anomalous
>> shading in horizontal after 4/5 cm from the first line of the sheet. I
>> have tried with large, small immages, one level, tif, emptying the
>> memory….
>> I print the file as is and no-color managment. I have installed the
>> last driver epson, I printed with another 2100 and the problem is the
>> same. Banding is at 4,5 cm from the edge of the film.
>> I tried in A4 and the problem is slightly less evident.
>> What can I do?
>>
>
> Tempting to suggest there may be an ink flow problem -- if the ink
> can't get to the head fast enough, you may see a reduction in droplet
> size (translates as reduced density) once the ink pooled in the head
> has been depleted. This will be more noticeable on larger images,
> because the printer will deposit more ink per pass and thus go through
> the ready supply faster.
>
> I'd expect to see this on printers in which the ink is held in a fiber
> material in the tank; less so on those where the ink is loose or in a
> bladder.
>
> This could also occur due to head overheating with printers that use
> heat to produce the ink droplets (I wouldn't expect to see that effect
> with piezo printers); offhand I know Canon uses heat, but don't know
> for certain on Epson.
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Received on Wed Jun 6 11:28:21 2007