Digital BW, The Print

Have you tried squirting ammonia/water 1:9 directly through the
printhead nipples? It took two tries, but it seemed to have solved the
banding problem that couldn't be solved by any other method. I tried 'em
all. I'll keep you posted... I have noticed that ammonia dissolves
inkjet ink almost instantly, so it IS a good cleaner for these inks.

Jerry



rich8155 wrote:
> 
> Hello all,
> 
> I use an Epson 1160 with a CFS running MIS FS-N inks.  It's been
> doing quite well printing mostly on EAM and Legion Photo Matte.  On
> occasion I would get a small bit of banding but then it seems
> to "clear up" later.  Last night a very interesting thing happened
> that I want to share.  I was printing out 15 Super A3 sized images
> for a print exchange.  It's a dark interior scene of Alcatraz prison
> and has mostly darker tonal ranges with some lighter highlights.
> The first few printed just fine.  I should mention that sometimes my
> 1160 develops a squeaking noise as the rollers move the paper
> through between swings of the print heads.  By the third Super A3
> print this noise started up and slowly got a little louder.  After 6
> prints I examined closer and noticed that prints 3 thru 6 had
> banding that got progressively worse until print #6.  At first I
> thought this was a head issue so I did a nozzle check.  All looked
> fine.  I did a head cleaning to be sure, then printed another Super
> A3.  Still banding.  And still the squeak.  I decided to let the
> printer sit for a bit. About 2 hours later I printed one again,
> perfect, no banding.  Printed another, no banding.  A third.  Fine.
> But then on the fourth that squeak started up again and sure enough,
> banding.  So obviously banding, which I thought was a clogged print
> head issue, can also be a roller issue but I am still confused as to
> why and how this happens.  Somehow it seems my rollers get "tired"
> and start to less accurately move the paper forward after each head
> return.  But then later if I let the printer "cool down" it works
> fine.  In fact I finished my 15 print run of Super A3's finally but
> only doing 2 prints, then resting the printer for an hour or so,
> then 2 again.  Has any one else heard of or had this kind of
> problem?  Anyone have any clue as to what is happening and why?
> 
> Thanks.
> 
> Richard
> 
> 
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