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USER’S GUIDE
5–6
English: HL-YL User’s Guide, Chapter 5
REPLACING THE DRUM UNIT
The printer uses a drum unit to create the print images on paper. If the
Drum lamp is on, it indicates the drum unit is nearly at the end of its
life. We recommend you prepare a new drum unit to replace the current
one. Even if the Drum lamp is on, you may be able to continue to print
without replacing the drum unit for a while. If there is a noticeable
deterioration in the output print quality even before the Drum lamp
lights, then the drum unit should be replaced.
Drum
Alarm
Ready
Paper
Data
Toner
Fig. 5-9 Drum Unit Nearly at the End of its Life
!
Caution
• When removing the drum unit, handle carefully as it may contain
toner.
• You should clean the printer when you replace the drum unit. See
“CLEANING THE PRINTER” in this chapter.
✒ Note
The drum unit is a consumable, and it is necessary to replace it
periodically.
The drum unit is rated at approximately 20,000 pages. There are many
factors that determine the actual drum life, such as temperature,
humidity, type of paper and toner that you use, the number of pages per
print job, etc.. The drum life is estimated at approximately 20,000 pages
at 20 pages per job and 8,000 pages at 1 pages per job. The actual
number of pages your drum will print may be significantly less than
these estimates. 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 toner, and the product should
only be used in a clean, dust-free environment with adequate ventilation.