How to clean Canon PIXMA print head, flushing clogged nozzles on a print head

Clean a print head while it is inside a PIXMA printer - flushing the ink port with print head cleaner using refill syringe and plastic tube. This works for PIXMA printers using the following cartridges: PGI-580 / CLI 581, PGI-570 / CLI 571, PGI-550 / CLI 551, PGI-525 / CLI-526, PGI-270 / CLI-271, PGI-250 / CLI-251, PGI-225 / CLI-226, PGI-280 / CLI-281 Print head cleaner by Octopus: https://www.octopus-office.de/shop/en/printer-ink/nozzle-cleaner-cartridge-cleaner/5161/print-head-cleaner-set-for-canon-pixma-nozzle-cleaner-with-extension-hoses?sPartner=Youtube001 @AMAZON search for: B076525TKK