Konica-Minolta bizhub C552

Main body

A. Periodical maintenance1 (total counter; every 100,000 counts)

N	Section	Description/part name	Clean	Check	Replace
1	Overall	Paper feed and image conditions		●
2		Appearance	●	●
3	Conveyance section	Timing roller	●
4		Paper dust remover	●
5	Image transfer section	Around waste toner port	●
6	Processing section	Electrostatic charger wire	●
7		PH window Y/M/C/K	●
8	Duplex section	Duplex transport roller	●

B. Periodical maintenance 2 (life counter; every 150,000 counts)

N	Section	Description/part name	Clean	Check	Replace
1	Processing section	Imaging unit/Y,M,C			●
2		Toner filter			●

*1: Replace these parts when drum unit/K is replaced, or when either black 285,000 counts or color 120,000 counts is reached.

C. Periodical maintenance 3 (life counter; every 300,000 counts)

N	Section	Description/part name	Clean	Check	Replace
1	Manual bypass tray Tray 1 Tray 2 *1	Pick-up roller			●
2		Feed roller			●
3		Separation roller assy			●
4	Tray 3 Tray 4 *1	Pick-up roller			●
5		Feed roller			●
6		Separation roller			●
7	Processing section	Toner filter *2			●
8		Drum unit/K			●
9		Ozone filter *3			●

*1: Replace those three parts at the same time.
*2: Replace these parts when drum unit/K is replaced, or when either black 285,000 counts or color 120,000 counts is reached.
*3: Replace it when replacing drum unit/K.

D. Periodical maintenance 4 (life counter; every 600,000 counts)

N	Section	Description/part name	Clean	Check	Replace
1	Conveyance section	Transfer roller unit			●
2	Image transfer section	Transfer belt unit			●
3	Fusing section	Fusing unit			●
4		IH coil unit *1	●

*1: When fusing unit is replaced.