Cleaning The Developing Unit - Konica Minolta bizhub PRO 920 Service Manual

3. PERIODIC CHECK
3.10.4

Cleaning the developing unit

A. Periodic cleaning cycle
• Developing unit: Every 500,000 prints
B. Procedure
[1]
[3]
[2]
[1]
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[2]
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[3]
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Field Service Ver2.0 Aug.2005
1.
Pull out the photo conductor section from the
main body. (See "3.7.1 Removing/reinstalling the
photo conductor section.")
2.
Remove the developing unit from the photo con-
ductor section. (See "3.10.2 Replacing the devel-
oping unit and the developing suction assembly.")
3.
Remove the developing unit cover /1 from the
developing unit. (See "3.10.3 Replacing the devel-
oper.")
4.
Remove the scattering prevention board [2] from
the developer control blade [1].
5.
Clean the scattering prevention board with the
cleaning pad.
6. Clean the developer control blade [1], seat [2]
under the developing roller, and both ends [3] of
the developing roller with the cleaning pad/vac-
uum cleaner.
Note
• Be careful not to bend the lower sheet [2].
7.
Clean up the rear side of the developing unit cover
/1 [1].
8.
Reinstall the above parts following the removal
steps in reverse.