TA Triumph-Adler FAX 925 - Manual (Page 14)

English
Chapter 1 - Introduction 6
13. LED print head - This black bar is the part of your fax machine
which writes received or copied images onto the image drum unit.
You should clean this bar each time you change your toner
cartridge.
14. Toner cartridge - This black cylinder, installed inside the image
drum unit, contains the black powder which is the ink for your fax
machine. You will need to install a new toner cartridge when the
REPLACE TONER CART message appears on the display.
15. Image drum unit - The image drum unit contains the green
photosensitive drum which receives images from the LED print
head and transfers them to the printing paper. You will need to
install a new drum unit when the REPLACE DRUM CART
message appears on the display.