Epson PP-100 User Manual page 54

Note:
Wait for 4 seconds or more before removing the ink cartridge.
3. Push the expended cartridge so the cartridge is slightly pushed out.
(If the ink in the cartridge is low, it is indicated by a flashing ink cartridge light.)
Note:
If an ink cartridge is low, you may continue to use it until it is expended. To confirm the status
of each ink cartridge, see the following section:
& See "Using EPSON Total Disc Monitor" on page 73.
4. Carefully pull the expended cartridge straight out of the slot. Dispose of it properly.
5. Remove the new ink cartridge from the package.
Replacing Ink Cartridges
54