Epson Artisan 835 - What are causing these microscopic line streaks?

[rajhlinux]

I did another print with my new T2100 - with 600dpi - and promised by Epson to print fine drawings etc .

This is the first print cropped - with a glossy pigment ink on a glossy paper - with the B/W settings in the driver, but no other attempt to optimize the print - paper coatings react differently and show a varying amount of ink spread as I have seen at various times.

View attachment 16530
Various attempts have been made but w/o success so far to recreate these spikes. I still think that there could be some interference of the graphics data as it moves from a PDF file , gets converted from a vector graphics to pixel graphics file with a particular dpi, the printer driver needs to interpolate those pixels to match the printer print resolution - 600 dpi for Canon - and to match the required print size - that's several conversions in a row. I would give another PDF reader a chance to test which allows you to specify the dpi for the output/pixel file generation.

Thanks for the reply.

I will try your recommendation and will use a different PDF reader application, hopefully adobe acrobat allows me to specify the print DPI resolution.

 

[Ink stained Fingers]

I'm not sure to understand what you expect from a 'professional' printer in this case - I don't think the spikes are an issue with the printhead, it's a combination of the ink type - dye or pigment - or high density dye - and the surface of the paper - the coating - or film, and the forum members here have tried to print your layout in various ways. Epson photo printers typically run with a droplet size of 1.5 pl, but my T2100 just prints with 4 pl min - I don't think you can see that in the printout.
But it's the best that you try all discussed options since we are not getting these spikes - I'm curious what you'll find out .

 

[Ink stained Fingers]

I did another test with a WF-2010W, an entry level 4 color Epson printer running with pigment inks and 3.5pl droplets.
The print looks the same as with the T2100 - no spikes and rather clean edges with the pigment black.

 

[The Hat]

Your test prints helps much in convincing of your setup.
Wow, very clean, sharp and opaque. A+
What kind of printer model and ink are you using?

I used two different Canon printers, one runs Image Specialists dye ink and the other used Canon pigment ink.. One printer is a iP9950 and the other is a Maxify..

 

[rajhlinux]

I used two different Canon printers, one runs Image Specialists dye ink and the other used Canon pigment ink.. One printer is a iP9950 and the other is a Maxify..

Thanks for the reply.

I’m in the talks to buy a Canon Pro 200, possibly for $200.

I’m very curious and can’t find the definitive answer as to which printer is more accurate down the micron realm in print resolution, printing accurately of very fine details, the Canon Pro 200 or Epson P600?

Color is not importance to me because I’ll be using only black ink which have highest Dmax of ~5 to block UV light.

From the samples I’ve seen on this thread by various supportive members, the canon has remarkable print resolution but would like to know the comparison between the Pro 200 and P600.

 

[Ink stained Fingers]

I’ll be using only black ink which have highest Dmax of ~5 to block UV light.

D as a measure for density - originally translucent density from the analogue film days - is a logarithmic ratio to the base of 10 - a D of 5 would be a ratio of 100 000 in decimal terms which you never reach on film. And another issue the specctral behaviour of the ink - a good black in the visible range does not imply that you have the same density in the UV light range.
The starting point of this thread are 'these microscopic line streaks?' - a problem to which we didn't find an explanation yet - is it a problem with a single printer or with software-firmware or else ? I must admit that I don't have a clue at this point of time.

 

[rajhlinux]

D as a measure for density - originally translucent density from the analogue film days - is a logarithmic ratio to the base of 10 - a D of 5 would be a ratio of 100 000 in decimal terms which you never reach on film. And another issue the specctral behaviour of the ink - a good black in the visible range does not imply that you have the same density in the UV light range.
The starting point of this thread are 'these microscopic line streaks?' - a problem to which we didn't find an explanation yet - is it a problem with a single printer or with software-firmware or else ? I must admit that I don't have a clue at this point of time.

Thank you for the clarification about the behavior of UV light with relation to the D-max value. I will read more about this.

I've been extremely busy with school work and it seems like I'll never have time to troubleshoot thoroughly. I heard many suggestions to never supply the photo paper from the bottom common entrance and to supply it from the back. I guess this will prevent the photo paper from bending. I'll try that option as well.