Minolta Di551 Service Manual page 456

4. Periodic check (IV) (Every 2,500,000 copies)
NO Classification
1 Drum unit (1) Toner control board unit
2 Charging (1) Charging corona unit (includ-
ing PCL)
corona unit
3 2nd paper feed (1) TSL
unit
(2) Drum driving bearing
(3) Registration roller (U)
4 Developing (1) Developing unit
unit
5 Fixing unit (1) Upper roller error detection
sensor
6 ADU (1) Registration shaft (L)
(2) Registration shaft (U)
(3) ADU registration roller (U)
(4) ADU registration roller (L)
7 Conveyance (1) TSL cover assembly
unit
5. Periodic check (V) (Every 4,000,000 copies)
NO Classification
1 Paper feed (1) Paper feed clutch (tray 1 to 3)
section
(2) Conveyance clutch (tray 1 to 3)
Number
Service item
of parts
replaced
1
4024-1017-xx
1
4024-1022-xx
4024-2093-xx
1
2
4024-2190-xx
1
4024-2627-xx
1
4024-1024-xx
1
4024-1021-xx
2
4024-2410-xx
2
4024-2411-xx
1
4024-2671-xx
1
4024-2672-xx
1
4024-2622-xx
Number
Service item
of parts
replaced
3
4024-1028-xx
3
4024-1028-xx
3-11
Implementation classification
Clea- Inspe- Lubric- Replace
ning ction ation -ment
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Implementation classification
Clea- Inspe- Lubric- Replace
ning ction ation -ment
!
!
SERVICE
Note
Note
Actual replace-
ment count:
2 million feeds