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ROUTINE MAINTENANCE 5 - 17
HL7050_US_UG_FM5.5
Cleaning the corona wire
If you are experiencing print quality problems, please clean the
corona wire as follows:
1
Turn off the printer power switch, and then unplug the printer
power cord.
2
Open the top cover.
3
Take out the drum unit assembly (drum unit with the toner
cartridge).
■ We recommend that you put the drum unit Assembly on a
piece of disposable paper or cloth in case you accidentally
spill the toner.
■ To prevent damage to the printer from static electricity, do
not touch the electrodes shown in Figure 5-23.
Figure 5-23
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