DesignJet Z5400 where to find high quality pics

[Roderos]

Hi

I ended up getting Z5400 for free but one of my friends, it is in full working order with full high yield original inks from HP, I just want to sell it.

I tried to print an A4 page from flash drive in jpg format and everything works great.

I want to show to potential buyers the printing quality on a gloss photo paper (I have it). Do I need any specific picture format to print on A0? Any requirements to the amount of pixels? Where can I find some pictures to show the best printing quality of this printer?

Buyers mostly will need this for posters, banners, canvas etc

I never used DesignJet and large format printers before so sorry if the questions might loom a but silly 😝 

[Valsimot]

Find a high-resolution desktop wallpaper full of colors and print that.

[Roderos]

What is the recommended resolution for the picture if I want to print it A0 with a maximum quality in colour? 

Also, does that picture need to be in any specific format .tff etc?

[Valsimot]

tiff is better than jpg, the higher the resolution print will be higher in quality.

[Roderos]

Can you please recommend some services where its possible to find high resolution pictures? As just from Google Pictures I can't find that good quality.

[Valsimot]

check shutterstock.com

[Repairatrooper]

Personally, your best option is to print the embedded demo pictures. High resolution and sized properly, you do not need to mess with any software or paying for prints.

[Roderos]

Hi

When I tried to print demo page on A4 few days ago everything was fine. I just tried to print high resolution picture and probably because I set a wrong paper type, picture came almost all pink. It started printing with blue sky and after few seconds everything was printing in pink-black.

I ran a diagnostic page and photo black, light grey, cyan and yellow not printing. I ran a printhead cleaning now but it didn't solve the problem.

Can a wrong paper type cause this? What should I do?