When The Toner Is Low - Epson AcuLaser C900 Reference Manual

Do not install used developer cartridges into the printer.
If you have moved a developer cartridge from a cool to a
warm environment, wait for at least one hour before installing
it to prevent damage from condensation.
Warning:
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When the toner is low

When the toner is low, you need to move the cartridge to the
replacement position.
Follow these steps to set the cartridge that is near the end in the
replacement position.
For Windows
1. Make sure that the printer is not in use.
2. Click Printer Setting on the printer driver's Optional Settings
menu. The Printer Setting dialog box appears.
3. Select the color of toner to be changed from the Change Toner
list.
4. Click Start.
Do not touch the toner. Keep the toner away from your eyes.
If toner gets on your skin or clothes, wash it off with soap and
water immediately.
Keep developer cartridges out of the reach of children.
Do not dispose of used developer cartridges in fire, as they
may explode and cause injury. Dispose of them according to
local regulations.
Replacing Consumable Products
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