2L0
2-1-5
(2) Main charger unit
As the drum rotates in a “clean (neutral)” state, its photoconductive layer is given a uniform, positive (+) corona charge dis-
persed by the main charger wire. Due to high-voltage scorotron charging, the charging wire can get contaminated by oxi-
dization after a long run. Therefore, the charger wire must be cleaned at a specific interval. Cleaning the charging wire
prevents print quality problems such as black streaks.
Figure 2-1-8 Main charger unit
Figure 2-1-9 Drum unit and main charger unit block diagram
1
4
2
3
(1)
Main charger shield
(2)
Main charger wire
(3)
Main charger grid
(4)
Main charger wire cleaner
Main charger wire
Main charger shield
Main charger grid
Drum
High voltage
PWB
Main charger output
Zener
PWB
M
Summary of Contents for ECOSYS FS-1370DN
Page 1: ...SERVICE MANUAL Published in April 2010 842L0111 2L0SM061 Rev 1 FS 1370DN ...
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 18: ...2L0 1 1 6 This page is intentionally left blank ...
Page 21: ...2L0 1 2 3 1 Removing the tapes Procedure 1 Remove three tapes Figure 1 2 3 Tape Tape Tape ...
Page 24: ...2L0 1 2 6 This page is intentionally left blank ...
Page 57: ...2L0 1 5 5 5 Unhook seven hooks and then remove the left cover Figure 1 5 6 Left cover Hooks ...
Page 106: ...2L0 2 1 16 This page is intentionally left blank ...
Page 118: ...2L0 2 3 8 This page is intentionally left blank ...
Page 122: ...2L0 2 4 4 This page is intentionally left blank ...
Page 123: ......
Page 124: ......