Jan,
Is this on all papers? I had head-strikes once until the new firmware, but I have not seen these marks on the papers I've tested. Epson Baryta, and Platine. Canson Platine, and Ilford Gold Fibre Gloss. I've also tested Epson Legacy Textured and Legacy Fibre matte papers.
Rand
Hi Rand, it is not about head strikes.
It is about the black plastic parts on both of the roll holding elements.
I have no indication it is true for all papers. On my scp9000 it was true for rolls with relatively thick fine art matte papers. It would then show up as a faint linear mark in the length of the paper some 6 cm from the side.
In an earlier post I showed photos of the plastic parts where an edge or a corner is sort of sticking out a little.
These edge or corner touched the surface of the paper, thereby altering a little bit the surface and when printed will show up as a faint line because of the changed surface texture.
I never got to working with such papers on my scp9500 because of the show stopper issues with this printer. Never the less I already noticed what looks like stuff marks on these parts on the scp9500.
Also a word of caution with Legacy Platine: reduce the platen suction, and increase the paper thickness setting to prevent/reduce the marking on the paper caused by paper feed rollers and the ridges of the platen . By increasing the thickness setting a bit, the pressure of the rollers on the paper is reduced.
The platen is not a flat plate, but has little chambers needed for the suction, and the ridges in between will cause markings.
This paper is quite soft and gets a lot softer because of the ink fluid being absorbed by the paper during the printing. On my SCP9000 I used , if memory serves me well, a paper thickness of 0.5 or 0.6 mm and the platen suction of -2 or -3 to minimize these markings. It used to be a very fine fine art gloss paper.