English6You should clean this bar each time you change your tonercartridge.14. Toner cartridge - This black cylinder, installed inside the imagedrum unit, contains the black powder which is the ink for your faxmachine. You will need to install a new toner cartridge when theREPLACE TONER CART message appears on the display.15. Image drum unit - The image drum unit contains the greenphotosensitive drum which receives images from the LED printhead and transfers them to the printing paper. You will need toinstall a new drum unit when the REPLACE DRUM CARTmessage appears on the display.Control panel keys and indicators1. LCD panel: Refer to this liquid crystal display (LCD) panel forinstructions and information while your fax machine is operating orwhile you are programming your fax machine.2. Transmit resolution/!!!! YES key: This key changes the resolutionused for transmitting documents. Use STD for standard originals,FINE and EX.FINE for detailed or small print originals, andPHOTO for originals that include colours or many shades of grey.You will also use this key as the ! YES key when makingselections or to move your cursor while programming.GB4550.book Page 6 Wednesday, June 14, 2000 9:21 PM
