Sharp AL-2050 用户手册

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页码 112
TROUBLESHOOTING AND MAINTENANCE
84
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Close the front cover and 
then the side cover by 
pressing the round 
projections near the side 
cover open button. The error 
indicator will go out and the 
ready indicator will light up.
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DRUM CARTRIDGE REPLACEMENT
The useful life of the drum cartridge is approximately 18,000 copies. When the 
internal counter reaches approximately 17,000 copies, the error indicator will light up 
and "A DRUM CARTRIDGE WILL BE NEEDED SOON" will appear in the display. 
For more information on purchasing a drum cartridge, see "ABOUT SUPPLIES AND 
OPTIONS" (p.90). Wh
en the error indicator blinks and "REPLACE THE DRUM 
CARTRIDGE" appears in the display, the machine will stop operating until the 
cartridge is replaced. Replace the drum cartridge at this time.
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When closing the covers, be sure to close the front cover securely and 
then close the side cover. If the covers are closed in the wrong order, 
the covers may be damaged.
Do not remove the protective cover on the drum portion (black paper) of 
a new drum cartridge before use. The cover protects the drum against 
external light.
Caution
Caution