Canon imagePROGRAF GP-4000 - Manual (Page 393)

Important
• Never touch the metal contacts (A). This may damage the maintenance cartridge. •
5. Open maintenance cartridge cover. 5.
6. Hold the used maintenance cartridge by the grip (B) with one hand and put your other 6.
hand under the maintenance cartridge to hold it firmly on the bottom, keeping it level as
you pull it out.
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