I just tried a 10 inch by 360 inch print on the Z3200 PCL3 and it printed without issue.  Can you give me the specs on the 800MB image: what is the resolution of that image?

Edit: also, the length limit on a Canon Pro 4000 is 125 inches.  How is he getting 360 inches?

Regards,
Mike

The file would be good to have but in absence of the actual file, just knowing the exact resolution of the 800MB image and the exact print size chosen would help.

Attached is what I get when I try to create a custom size on the Pro 4000: max is 125.98 inches.  I did discover that if you click "Size Options" instead and SAVE a size, you can go to ~700 inches so there appears to be a way to do it.  Why they limit you on the custom size method, I don't know.

Mike

Mike, the odd thing is that Bernard etc finally decided to bundle 3 of the files in one image, total 2.5 GB, 8 bit, 280 PPI, >72x960 cm print area, and print from Photoshop on the iPF Pro 4000, with your size creation of the 4000 driver in mind. He phoned me at 75% of the length printed, fingers crossed, and the print was ready some hours ago. Now he has to fold the leporellos and cut them while folded .........

I guess further back in time they never hit that length in pixels (lower resolution files), though they reduced the resolution for the trials this time to get this job done and it failed with QU. Might still be another cause given the error text.

My jobs did not go beyond 5 meter if I recall it correctly. I used Qimage's print to file then to first set multiple images after another for a 5m long leporello image. Three of the files then on the print page, some white extra for tolerance at both ends,  1mm white +border and dashed lines along the length for cutting by hand later on. Folded after cutting, cut the extra white at the ends then. Worked well. Not my favorite jobs.

Met vriendelijke groet, Ernst

http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
March 2017 update, 750+ inkjet media white spectral plots

Thank you Mike for the advice so far,

Done all the possibilities. I like to have a continuing dash line along the length of the print (not between pages) and an easy nesting of 3 or 4 leporellos in the width of the roll of paper. So far it worked for me. Breaking up a leporello because it is more efficient on the roll paper when a single one has to be printed is harder to sell to a customer but price does wonders then.

Met vriendelijke groet, Ernst

http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
March 2017 update, 750+ inkjet media white spectral plots

Mike, never thought about that method, dashed or solid does not matter. I could use a bit more instruction on that method. Edit; more in the sense that I used that feature and abandoned it as it does things I would not expect when I change the images sizes on the print preview. Tried it again and it is the same. I doubt I would use that for the task discussed in the thread.

More often I had a need for just two lines to indicate where to cut and leaving the other opposite sides unmarked, the cut marks etc do not have that choice I think. For example when on a sheet or roll an image + border just fits when the print margin is added (5 or 12mm) so I do not use any cut marks etc in settings then and measure manually for the cut. The other example as a fast way to get an uneven border. I know you added a feature for the last, photo mattes. I would not object to a choice like that in the cut mark etc section. As a matter of fact I would not mind another feature; the possibility to have cut marks On or Off per image on the print page, had a job this week that could use that.

In the end, all roads lead to Rome.

Met vriendelijke groet, Ernst

http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
March 2017 update, 750+ inkjet media white spectral plots