Ricoh Aficio SP C311N Information page 98

Replacing Consumables
D
Hold the print cartridge and shake it from side to side five or six times.
Even distribution of toner within the bottle improves print quality.
E
Remove the cover from the print cartridge.
6
F
Check the toner color and location correspond, and carefully insert the
print cartridge vertically.
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ASH007S
ASH008S
ASH009S