Digital BW, The Print

Hi

I recently switched my 1290 over to UT2 inks (from UT1) and I'm
getting great results from my scanned 5x4s. Unfortunately when I print
on A3+ size paper I keep getting a problem (though A3 is fine). The
papers I am using are Ilford smooth pearl A3 and Permajet glossy A3+. 

With A3+, the paper seems to get caught in the printer heads at the
very end of the printing cycle and this results in a bent corner on
the paper covered with black ink. The actual print is unaffected and I
can trim the bent corner off, but it is a pain. My main worry is that
every time this happens the red light comes on and the status monitor
says there is  a blockage, but there is nothing there. I switch the
printer off and on again and after a couple of times the red light
goes out and everything is OK again. Though I had to raise the print
heads slightly using the thick paper lever on the side of the printer
last time.

One thing that I have noticed is that there is sticky semi-dry ink on
the inside of the printer especially at the far left end where the a3+
paper extends. What should I use to clean this off? It may be that
this sticky ink is dragging the print at the end of the cycle (I've
removed my pizza wheels BTW) or the sticky ink is coming into contact
with the print heads . Anyone have any ideas?

Note that I am not printing on the last inch of paper because I have
no pizza wheels. I am told this is correct.

Thanks in advance for any ideas.

Mark.