dpi form digital printers

[Dottonedan]

Do any of you know of a good digital film printer (that prints at 600 dpi) rather than 300?  Just realized this Epson 1340 we have prints at 300.

[blue moon]

EPSON 1400 used to print at 2880, so the newer version probably supports the higher resolution too! Why do you think the limit is at 300?

Pierre

[Alex M]

Traditionally Epson worked in multiples of 360... must be a new head set up for them


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[Frog]

How do numbers like those given relate to this, that's listed for my WF1100 - 5760 x 1440 optimized dpi

btw, same resolution specs as 1400 and 1430 (that's what you meant, right Dan?)

[Dottonedan]

I'm not there now to show where, but My PC crashed over the holiday some time and I s out for repair.
In the mean time, in on a lap top using the cloud for illy and Photoshop. Had to download a trial version for AccuRip and while going thru the options it gives you the DPI of your printer model. It was only 300 as the option.

I've also looked previously at the setting in the Epson print window and saw the same thing. That's physical dpi. The printer (ink resolution) is different. I think that's what Pierre is referring to.

Alex, I'm not sure of all printers and their dpi (back in the day) when I started working in art departments, but the desktop printers (LaserWriter etc.) were all 300.   Then 600 came along and some good ones are at 1200 and 2400. At that same time period, many high end shops used imagesetters. (Wet film processing). Those started at 2400 and went up. In reality, yes, to be more precise, the numbers were more like 360, 720, 1440, 2880, etc.

That all may be "generalization" or rounding off, but I've heard many say both 300 and 360 and read it as well. Mostly all about the same time period and that is why I assume many round off. Not sure.  I remember a post by Mark Coudrey in the various dpi settings, how the build, how they determine that but would have to dig for it.

As you know, Dpi and ink droplet, and ink resolution are each different.

[Frog]

Still trying to wrap my head around all of this. Hopefully this article won't confuse me more.
https://www.lifewire.com/dpi-ppi-print-quality-settings-2769170

[Dottonedan]

The article seems a bit better.   http://www.ideastraining.com/PDFs/UnderstandingResolution.pdf

[3Deep]

I was thinking Accurip overrode the printer settings

[Sbrem]

I was thinking Accurip overrode the printer settings

I think you are correct Darryl, as ours is set at 1440 x 720 in AccuRIP (Epsom 3800)

Steve

[Dottonedan]

I was thinking Accurip overrode the printer settings

It CAN, but you can also uncheck that feature to print various lpi on the fly.  If you stay at the same lpi all the time, you will want to check that. If not, then un check it and make those changes in your Illustrator or Corel file.

[Dottonedan]

Ha!  I just realized I posted about accurip locking and unlocking the LPI when we are taking g about DPI.

[Sbrem]

Ha!  I just realized I posted about accurip locking and unlocking the LPI when we are taking g about DPI.

I did notice that, lol...

Steve

[Dottonedan]

Ha!  I just realized I posted about accurip locking and unlocking the LPI when we are taking g about DPI.

I did notice that, lol...

Steve

Still, you can't put in 5 lb of beauty (e.g. 2400dpi)  into a 2 lb turd bag (300dpi) and hope it comes out clean.  I'll check on my printer manual to see what it's at.

[Dottonedan]

If I understand it correctly, (and I am thinking I do), ink resolution is not necessarily image resolution. In digital color prints, you get more visual image quality due to saturation or (more ink resolution) Higher ink resolutions is nothing but printing the same area (more), not smaller or finer dots.  Like 3600 versus 1200. Thus, more opaque films.  If you want to print faster...you lower the ink res. It prints faster, but puts down a thinner layer of ink. So, to counteract that, you change ink weight.  Be careful tho, you could plop down too much too fast.

For printing on film with just black ink, you increase ink coverage (making your D max higher) by increasing ink resolution and ink weight droplet as another option.  But the Physical dpi of the printer has been 300 then upped it to 600 and in high end, now 1200.

Again, back in the day, the true wet film imagesetters were starting at 2400 and go up. 1200 was low end (for those). So yea, I'm trying to really find out if printer descriptions are truly 1440 ink res and if they are calling that (DPI). Remember, the ink output (spits) ink, so it's not dead on for form the smallest dot of say a single picoliter and then print directly over top of that gain and again and again to give it more density.

Case in point.  I am printing out of Photoshop at 600ppi for my (what would be vector files) for the average joe. Why Photoshop for that?  Long story. but anyhoo, assuming that my small type would be cleaner. Mine out of a Epson 1440 came out with bumps along the edges. It's sharp and clean in psd. Now, I know I had Anti-aliasing turn off on the type at 600ppi. So there should be no bumps (if ink res) really did pertain to dpi).  But I am using AccuRip and I could have swore I saw AccuRip (when looking for the proper driver update) mention along the way, that my Printer was a 300dpi printer.

[Dottonedan]

THIS explains it well and is what I expected.

https://en.wikipedia.org/wiki/Dots_per_inch