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Author Topic: Different borders  (Read 29391 times)
Oldfox
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« on: August 04, 2010, 07:00:01 AM »

This is my first post here. I have been using Qimage some time now.Basicly I am happy with the product. However a couple of times I have torn my grey hairs. My knowledge of Qimage is still far from good, so some of the problems have been caused by this.

Here is one problem which I encountered the other day and I have not found a solution to it. The problem will probably pop up for me some day again and maybe somebody else has had too.

The other day I printed some photos with my Epson 3800. I planned to print four images to A4 sheet and then use my trimmer paper cutter to cut one sheet to four photos.

Because I had quite many photos I planned to make it easy. So I planned to use the paper cutter only three times per A4 sheet (one cut to halve the A4 and then same again with the two halves) ending with 4 photos from one A4.

I like to have white borders in my photos. I knew that Qimage has option to include white borders "automatically". This is where the troubles came. No matter what I tried I did not get even borders to my photos, so I ended up using the paper cutter a lot.

Afterwards I examined the task more closely, and I found out that it was not easy at all. There are a lot of variables involved (basically in two pieces of software: Qimage and the Epson driver).

Here is what I wanted to do:



The size of A4 is 297x210 mm. That makes 148.5x105 mm per image. Using 10 mm border in each side leaves 128,5x85 mm (ratio 1.511765) for the image itself. The originals were 1.5 in ratio, so I had to crop them a bit to get ratio 1.511765.
I used Qimage Professional Edition (version 2009.268) with :
- Custom size 2 col x 2 rows
- Auto Cropping: Off
- Print Orientation: Unlock
- Borders: B
- Border 1: 5mm
- Border 2: 5mm
In the Epson driver I had:
- Source: Sheet
- Borderless: Yes
- Size: A4
- Page Layout: Layout: Output Paper: Same as Paper Size

This is the best I could produce. The borders are not the same in each side, however.



The borders shown in the output from Epson Print Preview are exactly the same as in the actual print (the colours are not).

Here I used different colours for the borders to show the problem. In the final print the border colors are all white.

As you can see the borders are not the same:
1) In the top there is a small white border (0.5mm).
2) In the center there is a white border (1.5mm).
3) The bottom border is cropped (1mm).
4) In the left there is very small whiter border (less than 0.5 mm, hardly visible in the screen)

There is an option in Qimage I also tried. Page Formatting -> Borderless Overspray/Expansion -> Disable. This seemed to cancel the borderless option in the Epson driver and result was worse than above.

It is possible to change to the Amount Enlargement for the borderless print (Main -> Paper Settings -> Expansion). Changing the Expansion from Max (factory setting) to Mid or Min, gave also worse result in my case.

So that leaves the question: Is it possible to have exactly the same borders in 4 images in one sheet?

(I would not like to start calculating and including the borders in actual images itself).
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Ernst Dinkla
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« Reply #1 on: August 04, 2010, 07:25:16 AM »

The day Qimage gives correct feedback on mm sizes you can create equal borders. As long as it rounds off actual sizes from say 1,4 to 1 mm in some menus you will get issues like you reported. It is meanwhile a five year old request: let all feedback be precise to 0,1 mm. We need that in the metric world.


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/


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Terry-M
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« Reply #2 on: August 04, 2010, 07:39:58 AM »

Quote
The day Qimage gives correct feedback on mm sizes you can create equal borders.
I don't think the problem is anything to do with that, it's related to the fact that Oldfox is using borderless and the expansion affects the sizes.
He's also got cropping off so the images will not fill a quadrant (4 images per page), hence the extra white space.

Sorry Oldfox, I've not time at present to look in detail and simulate here but will try later on today. There may be some clues in what I said above but using borderless is always dodgy for accurate sizing, even with expansion disabled in Qimage.
A screen shot from Qimage would be helpful too, right hand side of main screen and the full page editor.
Terry
« Last Edit: August 04, 2010, 08:35:34 AM by Terry-M » Logged
Terry-M
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« Reply #3 on: August 04, 2010, 08:51:46 AM »

Hi Oldfox,
Quote
I've not time at present to look in detail and simulate here but will try later on today
I've now checked.
I was a little puzzled that you first mentioned 10mm and then 1.5mm B1 and 2.5mm B2 borders and the screen shot appeared to show something like 5mm for each Huh?
However I simulated with  each at 5mm on an R800.
First:
Quote
Using 10 mm border in each side leaves 128,5x85 mm (ratio 1.511765) for the image itself. The originals were 1.5 in ratio, so I had to crop them a bit to get ratio 1.5117
There was no need to do this with the image, just use print cropping (scissors icon) and it's done for you precisely.

I set up A4 borderless with Custom 2x2 = 4 per page and border as above. Expansion was disabled in Qimage.
LIke you, from print preview the borders looked unequal with some white spaces in strange places, ie. at the top in my case.
See attached screen shot below.
I then did the same but without borderless set, ie. normal page margins.
See attached below, although the image black outline does not show so well, the borders are equal and the only white space are the page margins as expected.
Conclusion: the borderless setting creates some distortion so for accurate dimensions, don't use it!  Shocked
Terry
« Last Edit: August 04, 2010, 08:53:42 AM by Terry-M » Logged
Oldfox
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« Reply #4 on: August 04, 2010, 09:42:45 AM »

Quote
I was a little puzzled that you first mentioned 10mm and then 1.5mm B1 and 2.5mm B2 borders and the screen shot appeared to show something like 5mm for each Huh?

B1 = B2 = 5mm as you figured. (there should be colons in my text, maybe they show up different in your screen).

Anyway, thx for quick answer(s), I'll have to study them more later this week.

/old Fox

ps. the same post has been in Steve's Digicams' Qimage Support Forum two weeks now, no replies, 184 views (now)...
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Terry-M
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« Reply #5 on: August 04, 2010, 09:53:56 AM »

Quote
(there should be colons in my text, maybe they show up different in your screen).
You are right, I did not look carefully enough on my hi res screen Roll Eyes

Quote
ps. the same post has been in Steve's Digicams' Qimage Support Forum two weeks now, no replies, 184 views (now)...
That web site is dead duck now as far as Qimage is concerned it's all here now  Grin
Terry
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BrianPrice
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« Reply #6 on: August 04, 2010, 11:05:14 AM »

Hi

I think you are asking a lot of the 3800 to expect millimetre perfect paper feed. It's not the best printer I've used in this respect, although in most other ways it's fantastic.
Given that you are using white borders I don't think a mm would be noticed, and you also have the problem of trimming to a 1mm tolerance.

Brian
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Ernst Dinkla
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« Reply #7 on: August 04, 2010, 07:35:18 PM »

Hi


Given that you are using white borders I don't think a mm would be noticed, and you also have the problem of trimming to a 1mm tolerance.

Brian

Brian, do you use the metric system or "imperial"?


met vriendelijke groeten, Ernst Dinkla

spectral plots of +100 inkjet papers:
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm

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BrianPrice
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« Reply #8 on: August 05, 2010, 06:33:47 AM »

Quote
Brian, do you use the metric system or "imperial"?

Ernst

I can work in either without too much trouble. I suppose I think in inches but measure in millimetres. In the 'old' days when we were totally Imperial we didn't use tenths of inches, just 1/8ths, 1/16ths, 1/64ths, etc.

Brian
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Ernst Dinkla
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« Reply #9 on: August 05, 2010, 07:25:10 PM »

Brian,

It is not the computing metric<>imperial I'm thinking off, I have to do it often too. I ask this because a 1mm difference on a 10mm border is quite visible. That's the kind of borders the thread started with. And cutting that kind of borders with a 1mm error would show in my opinion. Cutting with 0.25mm precision is doable. One way or another I get the impression that the 1mm looks smaller in the imperial eye than in the metric eye. It is less than 1/25th of an inch so to speak.


met vriendelijke groeten, Ernst Dinkla

spectral plots of +100 inkjet papers:
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
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Terry-M
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« Reply #10 on: August 05, 2010, 09:23:22 PM »

Ernst et al,
Quote
I ask this because a 1mm difference on a 10mm border is quite visible. That's the kind of borders the thread started with. And cutting that kind of borders with a 1mm error would show in my opinion. Cutting with 0.25mm precision is doable.
Here are some real facts.
I printed the white images with different set borders shown attached below, the numbers are the set mm border sizes in QU.
I measured each one with a hand held measuring microscope  and, (within the limitations of a hand held device resting on the print), each ones measurement matched the number on the print.
I can even see the differences on the print - that comes from practice at looking at small differences in the engineering industry.
Conclusion, Qimage in metric mode is VERY precise, is at least 0.10 mm, 2 hairs' width, good enough?
End of story
Terry
(edited)
« Last Edit: August 05, 2010, 09:59:09 PM by Terry-M » Logged
Ernst Dinkla
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« Reply #11 on: August 06, 2010, 07:34:11 AM »

Ernst et al,

End of story
Terry
(edited)

Terry,




Terry,

The thread took a different turn with Brian's: "Given that you are using white borders I don't think a mm would be noticed, and you also have the problem of trimming to a 1mm tolerance". That was what I commented on.

You are entirely right on Qimage's precision in metrics and inches and I did not argue that fact, I know it is like that. My first comment in this thread wasn't correct, I hadn't noticed that Oldfox used a borderless print setting in both trials, I thought he did it only in the second attempt and used mm fractions in the first attempt.

Remains the fact that in several menus when you use an x,5mm choice or even more precise the backfeed in the menu isn't showing the actual size in mm's. It rounds it off to whole mm's. Which can lead to related issues as I notice in practice.


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/
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Oldfox
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Posts: 38


« Reply #12 on: August 06, 2010, 07:45:09 AM »

Quote
Conclusion: the borderless setting creates some distortion so for accurate dimensions, don't use it!  Shocked
Terry
Hi,

You are right about the distortion with borderless. Thinking the way borderless is achieved, this is obvious.

I tried your suggestions (no borderless, print cropping on) and got the same result as you. However, there are the Epson physical margins which should be cut away.

I found out that there are also Page Margins within Qimage. So I changed the right margin to -8m giving total right margin -4.966mm. The result was promising (attach 1, qimage11.gif).
Next I changed all four Page Margins to -8mm. The preview in Qimage looked still promising. See the white lines indicating the boundary of "image" to be printed (attach 2, qimage12.gif).
However the Epson Print Preview looks nearly the same as with default Page Margins. (attach 3, qimage13.gif).

Even more puzzled

/old Fox

I suppose my problem should be possible to solve with Qimage. Qimage "knows" the Epson physical margins. All it has do is to include them when calculating the final output.
« Last Edit: August 06, 2010, 07:49:50 AM by Oldfox » Logged
Oldfox
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« Reply #13 on: August 06, 2010, 07:45:55 AM »

Last attachment here:
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Terry-M
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« Reply #14 on: August 06, 2010, 09:12:46 AM »

Hi Oldfox,
Quote
I found out that there are also Page Margins within Qimage.
These are the same as the driver produces; Qimage is just reporting what they are, not a separate or additional value - until you edit in Qimage.
Just to say, Page Margins are not the same as Image Borders!
Quote
So I changed the right margin to -8m giving total right margin -4.966mm.
I don't think you can use negative values when using a normal page set-up, it only works on borderless. That's why the print preview looks the same, It tried it once.
Quote
I suppose my problem should be possible to solve with Qimage. Qimage "knows" the Epson physical margins. All it has do is to include them when calculating the final output.
Yes, it does that already.
Quote
.... However, there are the Epson physical margins which should be cut away.
Yes, you'll have to live with that I'm afraid.
Your Qimage 11 attachment, did that have negative margins? I can't see why some border should be missing on the rhs. This should all be very straightforward
I wonder if Brian could try to simulate this set-up on his 3800 and see what the preview looks like; I can't see why your preview should not look like mine on an R800 - reply #3, second attachment, above.
Terry
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