Printing Problem

[speedo]

This is a first time issue. When I try and print my executions as usual, my printer just prints out a blank page with simply c 2202 NinjaTrader, LLC on border but no executions...same for performance page. I printed both a test page and a document from file which both printed fine so issue appears to be between NT and my printer.

[brucerobinson]

See #Big4Luck resolution - uninstall Windows Update, let it install a more recent one, continue

[speedo]

I did that several times and STILL have to uninstall the latest to print a report. I am still on Win 10 if that makes any difference.

[NinjaTrader_Jason]

Hello speedo,

Please see the link below regarding the Windows update (KB5020872) in question.

https://support.microsoft.com/en-gb/topic/december-13-2022-kb5020872-cumulative-update-for-net-framework-3-5-and-4-8-for-windows-10-version-20h2-windows-10-version-21h1-windows-10-version-21h2-and-windows-10-version-22h2-c6e3fb7e-95af-48c5-984b-42dd0441bff7

You can find a workarounds at the following link.

https://support.microsoft.com/en-gb/topic/kb5022083-change-in-how-wpf-based-applications-render-xps-documents-a4ae4fa4-bc58-4c37-acdd-5eebc4e34556

[brucerobinson]

Hello Jason and thanks

KB article says 'some' WPF apps are reporting this. It reads such that MS see it as with the apps and the fix expected from app devs.

Is this so, are we to expect a fix & if so, when.

The KB installer didn’t work for me so had to go registry edit. KB says that gives me vulnerability. The regedit disables the Dec 22 Update. As I only have this problem with NT but print daily EOD, it seems I could put disable key and delete disable key in Ninja .ico desktop shortcuts and switch the update off and on when I print.

Can you tell me conmand line to delete the key that disables the update? Instead of “reg add”, perhaps “reg del”, “reg delete”?

kind regards

[Bend70]

I am having the same issue described by speedo above on first time trying to print from NT8
The link provided by NinjaTrader_Jason has been updated by Microsoft to say that the workaround should no longer be necessary
I am running Windows 11 fully up to date, and NT 8.0.27.1 64-bit. I didn't update to latest NT yet as advised by Apex, but presume this shouldn't be critical
Any advice to get printing working please?

edit to say I just updated to NT 8.1.1.3 but same issue. Other programs print fine so seems isolated to NT

[NinjaTrader_ChristopherJ]

This issue has been reported to our Development Team and they are looking into a resolution for this behavior. I will update this thread once I receive confirmation this has been resolved.

Thank you for your patience.

[Bend70]

Thanks for referring it NinjaTrader_ChristopherJ, guessing no news yet?
could I check please:
Are you able to reproduce this issue?
Any advice for a short term solution pending Development getting to it?
As brucerobinson above I tried the KB installer but it didn't work, and I don't really want, or know how well enough, to edit registry on my own
I tried updating to 8.1.1.4 but no change
Thanks

[NinjaTrader_ChristopherJ]

This appears to be still being looked into by our development team. In the meantime can you right click in your chart->Save Chart Image then once saved print this image manually.

[Bend70]

I can, but the resulting quality is poor with everything having a slight blur on the .png file (attached portion), which is then reproduced by the printer, despite being a 1200dpi laser
I was hoping to get to something better, any other suggestions please?
Also, is it just me having this issue, or is this more widespread and reproducible please? (I'm guessing the latter if its gone to development)
Thanks

[QuantKey_Bruce]

It seems to me that what is happening when you do that is you are saving a 72 dpi (or so) image from the screen in its actual size, then expanding that image to 1200 dpi across a whole page which is causing all of the dots in between to be interpolated - this makes them fuzzy.

I tried the right click, Print option just now on a chart and it did print the whole thing the size of a page. It is kind of blurry, despite that it is a 600 dpi color laser printer in this case. It is probably blurry because if it printed the image from the screen at the right size that would correspond to the pixels it has on the printer, it might be just an inch or two wide.

What would have to happen for the chart print to be crisp is for it to be re-rendered at the printer's size and resolution. I don't think OnRender is designed to do that, at least so far. Maybe NinjaTrader can chime in with whether or not it is capable of calling OnRender with the right parameters to compose a page-sized, printer-resolution image of the chart so it prints that in perfect clarity.

[Bend70]

Thanks QuantKey_Bruce. The image I get via 'save as' from NT is 2544x1378 at 96dpi, as you said
If I do a Windows screenshot {Start_PrntScrn] of the same chart (both maximised to full screen of my 4k monitor) I get 3840x2160 at 96dpi, as expected for 4k
So a slight difference in resolution, but the Windows version doesn't have the ghosting (right hand image below), while the NT version does (left hand side)
This is what makes the resulting print so poor, much more significantly so than the resolution I believe

I understand the NT 'save as' will likely be optimised for speed/ease of sharing rather than highest quality, which makes sense
I'm no expert, but thought .png was supposedly lossless and had a vector ability, so not sure why the ghosting is necessary even for non-print use though?
And when printed it results in a very poor print

I'm assuming a direct print from NT would work as a vector, at least for the bars (as the Window screenshot seems to) so should be as sharp as the printer can manage (except for the EMA if curves have to be rasterised), and without any great user expertise to get a good result

Appreciate from your help that I can use Windows Screenshot to get a much better one-off print, but I bought the printer hoping to do many hundred similar screenshots as an initial use, and having to trim title bars etc off each one manually is a non-starter there

Looking forward to any other ideas, thanks

[QuantKey_Bruce]

Well, the grandest solution would be if NinjaTrader made it so that right-click, Print runs through OnRender with the RenderTarget set up in such a way that it creates an image that is the perfect size and resolution for the printer. But, I don't know if that is feasible. The next best thing is probably what you did - maximize the chart on your 4K monitor and screenshot that then print the screenshot because as you observe that captures crisper details than the few hundred pixels wide the non-maximized chart is which would only be 1/2" or something on the printer, smaller than a postage stamp.

[Bend70]

I found this other thread https://forum.ninjatrader.com/forum/...t-chart-images

Anyone with the same issue, I went to the workaround link from NinjaTrader_Jason in post 4 above, then followed the Update Catalog link from Microsoft for my OS and it got direct printing working, hopefully without the vulnerability of the registry workaround

But I'm now finding that the quality of the resulting direct print is worse than using the save as, then printing, suggested by NinjaTrader_ChristopherJ

Could someone from NT comment as to whether this is expected please?

I attach a portion of a 'print to PDF' so you can see its not my printer. The lower text is pin sharp, the upper text is blurry. Both are reproduced accurately on my printer. Thanks

[NinjaTrader_ChristopherJ]

Our development team is looking into this as some users are experiencing issues when printing from within the platform as referenced in your attached screenshot.