Periodic cleaning
To ensure the printer continues to function properly throughout its life, periodic cleaning is
necessary. The two areas that need periodic cleaning are the following:
● Static discharge comb (discharging unit)
● Horizontal registration/transparency (OHT) sensor
Cleaning the static discharge comb
Clean the static discharge comb at the top of the printer with the brush that is stored inside
the front cover. You should clean the static discharge comb whenever you change the black
print cartridge, whenever you replace the ETB, or whenever print quality defects occur.
Note
If you are replacing the black print cartridge, clean the static discharge comb first and then
replace the black print cartridge. (Toner might fall onto the black print cartridge during
cleaning.) Be careful not to get toner on your clothes.
If you are replacing the ETB, clean the static discharge comb with the new cleaning brush
included with the replacement ETB.
To clean the static discharge comb
1. Lift the top cover of the printer. Grasp the front cover and pull down. Remove the
cleaning brush stored inside the front cover.
2. Grasp the green handles on the ETB and pull down.
102 Chapter 4 Printer Maintenance ENWW
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