C7

OKI Type C7 is a high-capacity color toner category used by heavy-duty OKI printers such as the C9600 and C9800 series — not a printer model itself. The set comprises black 42918904, cyan 42918903, magenta 42918902 and yellow 42918901. If your OKI printer calls for Type C7, these are the cartridges it takes.

Toner Cartridges for C7

This printer works with the following toner cartridges:

Oki 42918901
Oki 42918902
Oki 42918903
Oki 42918904

Frequently Asked Questions

What toner cartridges does the C7 use?

Your C7 takes the OKI 42918901 (black), 42918902 (cyan), 42918903 (magenta) and 42918904 (yellow) toner cartridges. Since each color loads separately, you only ever replace the one that is empty.

My C7 warns toner is low but pages still look good — can I keep printing?

Not immediately. A ‘toner low’ warning on the C7 is an early heads-up, and gently shaking the cartridge buys extra pages. Order the replacement for your C7 (42918901, 42918902, 42918903 and 42918904) now so you are ready when quality drops.

My C7 prints thin white lines — could dirty LED heads be the cause?

Thin white lines down the page usually mean a dirty LED lens, not empty toner. Clean the four LED arrays inside the C7 with a dry lint-free cloth, then print a test page to confirm.