L-4533A/L-4533AW/L-4033A/L-4033AW Operation Guide Introduction Press Parts External Image from the Front Left Side 14 Letter Name Explanation a Lock release button Push when opening the ink cartridge cover. b Ink cartridge lamp Indicates the status of each ink cartridge. U “Status of the Ink Cartridge Arrangement and Lamps” on page 216 c Ink Cartridge Two ink cartridges are installed for each color. d Ink cartridge cover Open when replacing ink cartridges. e Maintenance tank cover Confirm the amount of ink in the tank from the window. Also, open for inspection and cleaning. f Maintenance tank Collects ink waste fluid.