Brother HL-2600CN Series, Service Manual, Page: 61 / 385

IV-10
1.1.3 Details of Each Process
1 Charging
The charging process ensures that the OPC belt is evenly charged by the charger
system.
(1) Structure of the Charger Unit (Refer to Fig.4-8 and Fig.4-11)
i) The charger unit is located as shown in Fig.4-8.
ii) The charger unit consists of the case, corona wire and grid.
iii) The charger unit charges the OPC belt surface to the potential -V
0
(V) with the
corona charge.
iv) The charger unit has the grid controlled to the constant voltage ZD(V) for even
charging.
(2) Process of Charging (Refer to Fig.4-12.)
i) The status of the OPC belt surface before charging is -CBV(V).
ii) The charger unit charges the OPC belt surface evenly to -V
0
(V) by generating a
negative charge.
ZD
CBV CHV
Fig.4-11
-V
0
Fig.4-12
Charging
Grid
Cleaning
(Blade)
Corona wire
Case