MX-M850 (serv.man39). Section 9 Maintenance - Sharp Copying Equipment Service Manual (repair manual). Page 12

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MX-M1100  MAINTENANCE  9 – 12
* After attachment, apply side seal powder (UKOG-0309FC
ZZ) to the whole surfaces of the side seal F and side seal R
evenly by using Patel (UKOG-0311FCZZ) .
19) Check the blade side seal F (a) and the blade side seal R (b)
at every 500K, and replace them at every 300K. 
* When attaching them, attach according to the reference. 
20) Remove the blue screw (a), and replace the sub blade (b).
* Tighten the blue screw (a) in the sequence of (1), (2), and
(3). 
21) Clean the cleaning brush roller (a) at every 500K.
22) Remove the screw (a). Remove the brush bearing (b), and
check at every 3000K.
23) Replace the cleaning brush roller (a).
* When attaching, the cleaning brush roller, engage the slit (b)
at the lead edge with the pin (c) in the shaft.
a
b
a
a
a
b
1
2
3
a
a
a
b
c
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