>yellow ink wont print

Check the ink level
Start with checking the ink level in your toner. ... Since you have a problem with printing in Yellow color check Yellow or Magenta ink level. If its ink level doesn't appear, it could be an issue with either Yellow or Magenta cartridges. Two fix the issue, you can try to perform Clean Printhead.
https://windowsreport.com/printer-wont-print-yellow/

Any error messages on the printer digital screen or the desktop? I take it the "The ink is fine" means that there is ink in the cartridges!

Try a test print via the Control Panel> Printers and Faxes> properties > Print test page.

First try to replace the yellow toner cartridge. After that, try re-seating the cartridge (take out the cartridge and place it back in carefully making sure it is seated correctly). If this does not resolve the issue, clean the print heads and connections on the cartridge. This can be done by removing the cartridge and swabbing the connections with a Q-tip dipped in rubbing alcohol. Also, while the cartridge is removed, swab the connections to the cartridge that are inside the printer where the cartridge is seated.

See if the ink cartridges are installed correctly. It may be that your Magenta and Yellow ink cartridges need to change places. So, try replacing the cartridges, put the Magenta where the Yellow is, and the Yellow where the Magenta is.
Usually the ink cartridge placement follows this order:
Cyan, Magenta, Yelow, Black, so see if the cartridges on your printer match. Also, check to see if there are color markings on the print-head itself, and make sure the markings match the cartridge inks.
If the ink cartridges are aligned properly and the Black is printing out just fine, you may be looking at a software issue, and you'll need to remove the printer from the Devices list (go to Start -> Control Panel -> System), unplug the printer from the PC and restart. Then, install the drivers first, and after that plug in the printer cable to the PC.

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> will not print yellow or orange

Yellow is one of the printer's "primary" colours.
Orange is mix of "red" and "yellow".

So, an empty "yellow" cartridge, or clogged ink-jets would cause your symptoms.

the problem is not with the printer but it is with the ink that might be damaged, this is located inside the printer

plz check printer alignment & printer ink stuats, is that possible other ink were not active.

The ink cartridges on your Canon Pixma MP500
print head not problem your yellow cartridge &black
problem

go to start>>control panel>> administrative tools>> services
search for "print spool" and any other listing related to the printer. stop the process by high light the service, right click on the mouse and stop.
open up the printer form start>>printer & faxes.
deleted all the print job that are in the queue.
go back to the service section above. and restart the services.

what are you trying to print in black? the best way to test out a black ink is to open word pad and type some thing random and print it and see if that works. if you have a all in one printer u might have 2 inks one color and one black in the printer