Refill HP-934 XL, HP-935 XL inkjet cartridge

The XL versions of HP-934 and HP-935 have two tanks inside. Refilling these cartridges is really easy if You work with this refill instruction.
Cartridge´s weight FULL XL-version
HP-934 Black XL 67g
HP-935 Cyan, Magenta, Yellow XL 28g
The XL-cartridges are used in the printer models HP Officejet Pro 6320, Pro 6820, Pro 6830.
High quality, pigmented refill inks from OCTOPUS®: https://www.octopus-office.de/shop/en...
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