
I have an Eco 3600 refillable printer. I didn't have access to the printheads to use the syringes. Instead, I soaked a paper towel in Magic Bullet liquid and placed it under the print head. You can find videos on the Internet that describe how to do this. You will need to leave the paper towel under the printhead for about 4 hours. Then you need to clean the printhead with the printer maintenance function. Then your printer will print like new (better than new in my case).

Cool Toner 055H Compatible Toner Cartridge Replacement for Canon: High-Quality Ink for Your Printer (Black Cyan Magenta Yellow, with Chip, 4-Pack)
12 Review

Inkjet MFP Canon PIXMA G3415, color, A4, black
17 Review

Cartridge NV Print MLT-D111L for Samsung, black
13 Review

HP LaserJet 1102/1130/1132/1210 Compatible Cartridge Cactus CS-CE285AS
22 Review

Sennheiser PC 8 2 Cancelling Microphone
71 Review

Logitech HD Webcam C270: Crisp 720p Widescreen Video Calling & Recording (960-000694), Lightweight and Portable at 3.15 lb.
192 Review

Renewed Logitech G PRO X Wireless Lightspeed Gaming Headset with Blue VO!CE Mic Filter for Immersive Gaming Experience
122 Review

π» Get Amazing Video Quality with Logitech HD Pro Webcam C920 (Discontinued Edition)
83 Review