Brother HL-3450CN Service Manual page 165

CHAPTER 5 CONTROL PANEL OPERATION
46
This mode can initialize (data clear) all the data in the NVRAM on the MCTL PWB.
BEFORE USING THIS MODE, THE VALUES FROM '34 TOTAL PAGES' AND '35 EACH
IMAGE' MUST BE READ TO ENABLE THE CORRECT VALUES TO BE RESET USING
FUNCTIONS 47 AND 48.
NOTE:
x
Do not perform this mode other than when replacing the MCTL PWB.
x
After performing this mode, be sure to set the LP TUNE UP value to '- 3'.
1) Press the Reprint button after selecting
Screen (a) "NVRAM INITIAL".
2) Select YES if NVRAM INITIAL should be
executed. If not select NO.
Press the Reprint button so that the RAM
INITIAL will be executed. (All the data will be
cleared.)
3) Following modes should be executed to set
the RAM data.
43: MARGIN ADJUST
44: LIFE PERIOD SET
45: NVRAM TUNE UP
47: TOTAL PAGE SET
48: EACH IMAGE SET
49: NEXT LIFE SET
When setting NVRAM TUNE UP, set LP
TUNE UP +4.
NVRAM INITIAL
Description of Procedures
(a)
CAUTION
a)
o
(b)
b)
o
(b) (c)
c)
5-40
LCD Message
39 FACTORY MODE
NVRAM INITIAL
46 NVRAM INITIAL
YES / NO
39 FACTORY MODE
DP CHECK