Apple Color StyleWriter 1500 - Manual (Page 8)

7 Slide the ink cartridge into its place in the printer.
Don’t worry if the cartridge is tilted a little to the left for now.
Note: There are instructions inscribed inside the printer cover to remind you
how to install either the color or black ink cartridge.
8 Lower the blue lever to secure the ink cartridge in place.
As you lower the lever, the cartridge straightens.
9 Close the printer’s front cover.
Cartridge
8 Chapter 1