Brother HL-2400C Service Manual page 152

45 NVRAM TUNE UP
This mode is not used in normal operations, but is used when fine adjustment of the
HVPSU voltage values is required. Do not use this mode unless you are sure that you
understand the effects of making adjustments to the various charge voltages in the
HVPSU.
This mode consists of following 5 (five) subordinate modes:
Configuration of NVRAM TUNE UP
45 NVRAM TUNE UP
Note:
After performing NVRAM INITIAL in the next section, be sure to set the LP TUNE UP
value to '- 3'
45-1 LP TUNE UP
45-2 THV TUNE UP
45-3 DBV TUNE UP
45-4 CBV TUNE UP
45-5 FBV TUNE UP
V-31
<Factory Setting>
- 3
0
0
0
0