Brother HL-2600CN Service Manual page 160

45-4 CBV TUNE UP
This mode should be used when image defects attributed to the OPC belt need to be
improved. Adjustment is to alter the OPC belt bias voltage against the reference value 0
(zero) in the range between the step -4 to +4.
Description of Procedures
1) Press the Reprint button after selecting "NVM
TUNE UP".
2) After selecting CBV TUNE UP Code 5, press
the Reprint button.
3) The adjustment value can be adjusted in 8
steps between -4 and +4.
After selecting a given number, press the
Reprint button.
4) Press the - button to finish the adjustment
work for CBV.
o
(a) (b)
a)
o
(b) (c)
b)
(c)
c)
o
(c) (d)
d)
V-35
LCD Message
39 FACTORY MODE
NVM TUNE UP
45 NVM TUNE UP
12345678910 12 16
45 CBV TUNE UP
-<432101234>+
45 NVM TUNE UP
12345678910 12 16