A SERVICE OF

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172 MFP disassembly/assembly ENWW
Procedure
1 Remove the drum unit. See “Drum unit” on
page 152.
2 Remove the charging corona unit. See
“Corona unit” on page 159.
3 Remove the cleaning blade.
4 Release the power supply pin in contact
with the toner guide roller shaft.
5 Remove the cleaner idle gear.
6 Remove the screws securing the front and
rear positioning parts.
7 Remove the toner guide roller.
8 Reinstall the above parts following the
removal steps in reverse.
Screw Positioning part
Toner guide roller
Power supply pin
Cleaner idle gear
Screw
Positioning part