Brother International HL 4040CN Users Manual - English - Page 114

Routine Maintenance Drum unit 6 Order No. DR-110CL A new drum unit can print approximately 17,000 A4 or Letter size single-sided pages. Note • There are many factors that determine the actual drum life, such as the temperature, humidity, type of paper, type of toner used and so on. Under ideal conditions, the average drum life is estimated at approximately 17,000 pages. The actual number of pages that your drum will print may be significantly less than this estimate. Because we have no control over the many factors that determine the actual drum life, we cannot guarantee a minimum number of pages that will be printed by your drum. • For best performance, use only genuine Brother toner. The printer should be used only in a clean, dustfree environment with adequate ventilation. • Printing with a third-party drum unit may reduce not only the print quality but also the quality and life of the 6 printer itself. Warranty coverage does not apply to problems caused by the use of a third-party drum unit. Drum End Soon message 6 Drum End Soon If the LCD shows Drum End Soon, it means the drum unit is near the end of its life. We recommend that you replace the drum unit with a new one before there is a noticeable deterioration in the print quality. Replacing the drum unit 6 CA UTI ON While removing the drum unit, handle it carefully because it may contain toner. Every time you replace the drum unit, clean the inside of the printer. (See Cleaning on page 122.) a Turn off the printer power switch. Press the front cover release button and then open the front cover. 105