Maintenance Procedure Of The Write Section; Replacing The Write Unit - Konica Minolta bizhub 500 Service Manual

3. PERIODIC CHECK
3.6

Maintenance procedure of the write section

3.6.1

Replacing the write unit

Warning
• Be sure not to turn on the write unit with it shifted from its regular installation position.
• Be absolutely sure not to remove the write unit cover. Otherwise, laser beams get in your eyes and
you may suffer loss of sight.
• Be absolutely sure not to remove the write unit for about 2 minutes after you turn off the main
power switch (SW1) or the power switch (SW2).
A. Periodically replaced part/cycle
• Write unite : Every 1,250,000 prints *1
: Every 900,000 prints *2
*1 500/420
*2 360
B. Procedure
[1]
26
1
[2]
[4]
[3]
50gaf2c020na
Confidential – for internal use only, do not distribute
Field Service Ver.2.0 Jan. 2007
1.
Remove the developing unit from the main body.
(See P.38)
2.
Remove the drum unit from the main body.
(See P.30)
3. Pull out the dust-proof glass cleaning rod [1].
4.
Remove the cleaning knob [4] from the dust-proof
glass cleaning rod [1] by rotating it in the arrow-
marked direction [3] with the section indicated by
[2] as a fulcrum.
5. Replace the dust-proof glass cleaning rod [1] to its
original position.
Note
• Be sure to push in fully the dust-proof glass
cleaning rod [1] so that it does not come in
contact with the main body frame when
removing the unit.