I love my Pro 100. As I said many times, that 8 color printer plus Dye ink made the most breathtaking prints ever.
The ink cost was a burden. I do print a lot. I too never had a clog anywhere.
So my looking for a Bottle Ink DYE ink printer was created..
My plain paper printing is done by my third printer; an Epson Workforce 3640.
BTW, the ET-8550 has a separate paper compartment for plain paper and is user activated.
Fred

Well, Mel (hey that rhymes)
The problem is not with the printer, it is more what I want compared to what you want.
Starting at the beginning, my Canon Pro 100 made the most breathtaking prints. It had tiny cartridges  of 13ml of ink in 8 colors
Light Gray, Gray, Black, Photo Magenta, Photo Cyan, Regular Cyan and Magenta plus Yellow.
All this detail to illustrate that One or Two cartridges were always blinking a low warning.  I printed 4 12 x 18, and it blinked and blinked. ENOUGH! Each cartridge costs 17.00 I was spending 100 dollars a month. The prints were so gorgeous that I  considered it cost of gorgeous prints, AND IT WAS USING DYE ink.
So if I was to replace the ink drinker, it had to use DYE ink.
Enter the Canon G620. Tank inks and Dye ink.  Oh my, perfect prints and after 200 8.5 x 11, my gray showed 3/4 low. I have a backup set which cost 15.00 for a huge bottle of 57ml  of Dye ink. Printer is still prominent with a real red included.
Only downside was 8.5 x 11 is maximum size.
I have a really good friend that (guess who) who checked it out plus Jose Rodriguez, guru of printers all proclaiming greatness.
I got one, and it is beautiful, prints compared to the Canon, almost identical.  It does work with 13 x 19 size, and you ca use great profiles for Epson papers.  I have a ton of Canon paper also, but I wanted to use the 13 x 19 size. So I had profiles made for the 8550 on Canon paper...

Summary,  Print quality excellent, and we hope it is well made and will last a log time.
As I was spending 100 bucks a month for Canon ink,this printer will pay for itself in 9 months.
You are welcome to call me 941 359 1933 anytime if you have more questions.
Happy new year
Fred

Do your setting and changes in Qimage.
I also have Q1 (for Windows) and it works the same.

Fred
PS if using a Mac computer makes any difference, the Q1 man will have to help.

I have the Pro 1000 driver running. Whatever paper size, paper type, etc. that you set in Qimage, those changes are mimicked in the driver. And as a bonus, with Qimage's AI running, even the quality is set to optimum,and the profile set to the matching set.
Try it. Set to semi gloss and 8.5 x 11 paper size in Qimage. Check the driver for a match. Now reset the paper to Luster and 5 x 7.
Check the driver. It is also set to 5 x 7 and Luster.
Fred

Question 2 and 3 are close to the same answer.
In Qimage on the right side when in the Printer and settings tab, there are a few icon buttons. Use the SAVE button  to the right of the Properties button to create printer setups.  Set the Printer in use, the paper size, paper type, and matching printer profile in the appropriate boxes Now SAVE giving it a name. See my  screen snap.   You can make as many setups as you like. Even for 8.5 x 11 and 13 x 19 for the same paper.
Now I want to use my ET 8550 Epson on HP Adv glossy paper. I purposely selected this situation to illustrate that paper choice is determined by what paper was used to make the printer profile.
I click the yellow folder again right next to the Properties selection box.
See screen snaps. It opens the saved setups but too many for me to wade through.
See 078 snap and you will get only pertinent setups after locating the down arrow at the bottom of the screen and selecting CURRENT PRINTER.
It shows only setups I made for that Eoson printer.
I can make various paper types and sizes.

Lets  stop here and see if you need more.
What printer do you use??
Fred

Also prevents Bird Flu

Same from Fred

Well, this takes a bit of investigation and judgement. At the top right, is a tiny eye dropper. Click  that guy onto the reddish extensions and it will embolden the LETTER of the color that is most heavily part of that hair.
In this case, the M was in bold. Sometimes, when a blue sky is too light or too dark, you may have to tweak CYAN along with blue.
The rest of the boxes are RGB showing applied red, Yellow,  Green, Cyan, Blue , Magneta,  as applied to the red channel. .. and so on. Maybe I can find the video, but just play by typing in numbers that amplify.
Fred
Found a decent video of Sel Color

https://we.tl/t-vilaci3Hjg

As I watch and read the Qimage questions that contain a workflow encompassing 4 other programs, I feel cetain that folks don't know what Qimage does. From being the best upsampler for images to making perfect prints. It has it all in one program.
For example, a girl wanted hair extensions; in a red color?
Her mom sort of wanted a print but reddish hair?
It  took 15 seconds to get the red back to normal in Qimage .
I used SEL COLOR in the image editor and lowered the magenta amplification number. Back to normal.
You can see in screen snap 074 the colors by letter. The Magenta M has an up and a down arrow. Take it from there.

OK Learn to have fun and enjoy Qimage
Fred

I'm sorry, but you are not in my league.
This morning after watching Mike's new video on the new printer feature, I set up Qimage for printing on a new paper (Epson Ultra Glossy). I saved the new setup and then went to see how it shows up in the new screen.

It's not there; wont open; WTH. I spent at least 10 minutes locating my new profile and manually selecting....etc.
Guess what. I forgot to download and install 107.
Beat that one!
Fred

First of all it works here at my house.  There are a few settings that you need to check. LINK TO box. Then you need to dot your choice. I generally use "selected" if I want the same text on two, and I hold the CTRL key and select both. If the two are copies you probably want the text in the same place on both. Position one, and QU will ask you what to do with the other one; move the same???
It's sort of tricky to explain, but seeing it is easier.
You can see that placement may call for dragging, and the first click location may make the second text way off. Just drag it . Give it the finger and drag it.
If you want to come over, I'll get pizza.
Fred

Here we are waiting for the next version of Qimage Ultimate.
Every so often, Mike springs a beta on me to see if I can understand it. He considers me the Lowest Common Denominator; if I can work it, any one can work it.
I guess I am the dumbest QU user.
The new 107 has a really great addition which makes my life easier when selecting the appropriate print setup.
I say no more.
Just wait for it:   Wait for it!
Either late today, or tomorrow for sure.

Fred

I must be doing something wrong.
I went to my eye doctor for "Pink Eye", and told him I was using Qimage to treat it. Was not improving.
He told me to call Dr. Mike, specialist.

Fred

Hi Frank,
Never worry about re-asking a question.

Have you tried the red eye removal tool in Qimage?
Hard to tell when you say, The RE tool didn't work.

Fred

OK I'll try. This is just an "understanding" of mats.  Think of the mat as a place mat under your bowl of soup. Your butler placed the soup too far from you because you were eating caviar when he served it.  Seriously, now you want to move that soup closer to you. If you push the bowl, the place mat will stay where it sits. So you have to grab the place met, and drag both the mat and the bowl. It took me a while to get the hang of it too.
Here's the secret. "SELECT" the mat and not the bowl if you want to move it.

See screen snaps.
Showing the mat as being separate from the image
063 with the yellow mat is showing uneven border as you mentioned, and most important' look at the corners of the mat and you can see little red corner highlights. That is showing the MAT is selected. If you click on the image, then that is selected.
Think soup.
Hope this helps.
Fred
PS I assume you are familiar with borders as opposed to Mats for quick EVEN borders.