General Procedures and Information
6-50 5/08 Phaser 3435
-Solution: Install a suitable print cartridge (the same supplier's). (A unique key has been 
applied.) 
Low Toner 
- Contents: This message shows up when a message "remaining toner: 10%" is displayed in 
a cartridge count information. 
-Solution: It means that a toner in the print cartridge has been almost ended. Prepare the new 
print cartridge. 
Replace Cartridge 
- Contents: It means the life span of a print cartridge (except a toner part) has been ended. 
Even though a case that a toner is refilled, the rest of major parts have been ended, so entire 
print cartridge might be replaced. 
- Solution: If an Print Cartridge Life cycle Problem, in a worst case, a toner overflows and it 
may cause a system fail. Therefore, recommend a user to replace a print cartridge.