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Mike Chaney's Tech Corner > Mike's Software > Qimage Ultimate > Incomplete print - how to diagnose??
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Author Topic: Incomplete print - how to diagnose??  (Read 8231 times)
bgrigor
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« on: September 09, 2016, 08:26:09 PM »
ARGH! I just had a client's 10 foot long canvas print from Qimage Ultimate (v2017.102) crap out right at the very end!  Angry

What I see is that a section of the image wasn't printed starting at 9.25" from the end *but* the solid black edge was printed right to the end. It appears the image is being printed in 3" swaths across the canvas, so what I see is 2 1/2 swaths of white space inside the solid black edge where there should be image in the last 9.25" of the print. The first 112" are fine.

The specifics of the file: TIFF, 36488 x 10388 pixels @ 300 ppi (121.63" x 34.63").

The specifics of the job from the log:

This file is a Qimage print job.
A print job contains all information necessary to restore Qimage to a certain "state" including all images in the
queue and all settings such as page size, paper type, printer profile, margins, etc.

* Qimage v2017.102
* Printing to: HP Designjet Z3200ps 44in Photo PCL3
* Page: 44.000 x 124.000 in.  (600 x 600)
* Printer ICC profile: HP Designjet Z3200ps, BC Lyve Canvas (RC, BPC)
* Interpolation: Max-600 PPI/Max-600 PPI/Fusion
* Print sharpening: On
* Global filter: Off
* Print filter: Off
* Canvas shrinkage comp: 0.00
* Copies of each page: 1
* Job started: 2016-09-09 09.53.21
* Job finished: 2016-09-09 10.03.58
1,U:\Jobs\J2016\J2016093 Michaela Davidson Morning Surf\Morning Surf.30 x 120_117x30_BSBW.tif,34.63,121.63

I have tried to print this image to a file @ 600 ppi and Qimage can't do it for lack of resources.

Are there other ways to debug this?

Thanks.
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bgrigor
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« Reply #1 on: September 09, 2016, 10:24:20 PM »
Here is a photo of the end of the print job showing the issue. If you look closely, you can see that the solid black edge was printed to the end, but there is a large area of missing image.
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bgrigor
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« Reply #2 on: September 10, 2016, 06:17:19 PM »
I re-ran job with the HP driver print-preview enabled and it shows that Qimage is not generating a complete print. I'm not sure what I can do the file to get a full print. Any suggestions appreciated.
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bgrigor
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« Reply #3 on: September 10, 2016, 07:14:51 PM »
I re-sampled the file to 85 ppi and re-ran the job letting Qimage up-sample to the full print size, again using the HP driver print-preview. The file specs this time were PSD, 10328 x 2933 px @ 85 ppi (121.51" x 34.51"), PSD file.

The same thing happened.

Here are the job specs:
This file is a Qimage print job.
A print job contains all information necessary to restore Qimage to a certain "state" including all images in the
queue and all settings such as page size, paper type, printer profile, margins, etc.

* Qimage v2017.102
* Printing to: HP Designjet Z3200ps 44in Photo PCL3
* Page: 44.000 x 124.000 in.  (600 x 600)
* Printer ICC profile: HP Designjet Z3200ps, BC Lyve Canvas (RC, BPC)
* Interpolation: Max-600 PPI/Max-600 PPI/Fusion
* Print sharpening: On
* Global filter: Off
* Print filter: Off
* Canvas shrinkage comp: 0.00
* Copies of each page: 1
* Job started: 2016-09-10 11.49.42
* Job finished: 2016-09-10 12.01.12
1,U:\Jobs\J2016\J2016093 Michaela Davidson Morning Surf\(SOLD Morning Surf_TRANSFORMED_117x30_BSBW.psd,34.54,121.63
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Terry-M
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« Reply #4 on: September 11, 2016, 08:07:44 AM »
Have you seen this in Help:
Quote
Trouble when printing images:

Trouble that includes an error message could indicate problems with corrupted images or memory: see above. Trouble like partial prints, not all prints printing, blank pages, or anything that deals with missing information in prints (with no error message) is usually related to a data bottleneck in the operating system. Due to its print optimization, Qimage sends more data to your printer than most software, so you may or may not see issues with other software while at the same time experiencing trouble with Qimage. The suggestions below will help eliminate printing problems caused by improper Windows configuration:

In Qimage, click "Edit", "Preferences", "Printing Options" and set the spool "Format" to "Raw - Large Prints".

If your printer is on a network and has a print queue, make sure that the queue size limit is large enough to accommodate the data being sent by Qimage.

Terry
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« Reply #5 on: September 11, 2016, 03:26:20 PM »
I have a theory on this one.  First, some background.  If QU's progress gets to 100% and says finished processing without any errors, all the data was sent to the driver: QU gets confirmation from Windows that Windows has successfully passed the information on to the driver.  At that point, we're looking at the driver not being able to process all the data it received.  At the size you are printing and with QU set to 600x600, the driver will be getting about 4.5 GB of data.  It looks to me like the driver has a 4GB limit (that would not be uncommon as that's the limit of a 32 bit unsigned integer).  So I think what is happening is that you are seeing the driver cut off when it has received 4GB of data (about the 95% mark which seems to agree with your print/preview).

To avoid this, I would suggest setting QU's resolution numbers on the main window to "High" instead of "Max" so that QU interpolates to 300 PPI instead of 600 PPI.  600 PPI is really overkill anyway on that size print, particularly since your original is 300 PPI.  Try that and use the print preview (to confirm, without using paper) and see if that allows you to get the full image.

Regards,
Mike
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bgrigor
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« Reply #6 on: September 11, 2016, 04:11:27 PM »
Mike, you nailed it. I just ran with the Interpolation set to High-300 PPI and the HP driver print preview shows a complete print, which I feel fairly confident I can release to the printer.

I will report this issue to HP.

Thanks as always for a great product and great support!

Brad
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bgrigor
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« Reply #7 on: September 11, 2016, 04:15:40 PM »
Quote from: Terry-M on September 11, 2016, 08:07:44 AM
Have you seen this in Help:
Quote
Trouble when printing images:

Trouble that includes an error message could indicate problems with corrupted images or memory: see above. Trouble like partial prints, not all prints printing, blank pages, or anything that deals with missing information in prints (with no error message) is usually related to a data bottleneck in the operating system. Due to its print optimization, Qimage sends more data to your printer than most software, so you may or may not see issues with other software while at the same time experiencing trouble with Qimage. The suggestions below will help eliminate printing problems caused by improper Windows configuration:

In Qimage, click "Edit", "Preferences", "Printing Options" and set the spool "Format" to "Raw - Large Prints".

If your printer is on a network and has a print queue, make sure that the queue size limit is large enough to accommodate the data being sent by Qimage.

Terry

Terry, my settings are Print Spooler Format: EMF - Fast Printing. How does RAW differ (besides the speed) and is there any impact on print quality?

Cheers!

Brad
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