HP color laserjet 4500 Manuale Utente

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NVRAM initialization
69
2
NVRAM initialization
NVRAM initialization should always be executed immediately after 
replacing the firmware or the formatter board. This procedure aligns the 
firmware with the formatter. Not performing NVRAM initialization could 
result in deterioration of print quality. Before initializing NVRAM, be sure 
to gather and write down the information listed below, if possible.
Total page count and color page count.
Print a configuration page to obtain both page counts and the 
serial number.
Percentage of life remaining for both the transfer kit and the fuser 
kit.
From 
SERVICE MODE
 
on the printer display panel, press 
M
ENU
.
Go to 
SERVICE MENU
 and press 
I
TEM
.
Use the 
V
ALUE
 +/- 
keys to go to 
TRANSFER MAINT 
COUNT=XXXXXXX 
and write down the exact numbers shown.
Go to 
FUSER MAINT COUNT=XXXXXXX 
and write down the exact 
numbers shown.
Serial number.
To initialize NVRAM
1
Hold down both the 
C
ANCEL
 J
OB
 and 
S
ELECT
 keys until all the LED 
lights are on, then release the keys.
2
Press 
C
ANCEL
 J
OB
.
3
Press 
S
ELECT
.
After replacing the firmware or the formatter board, the following 
settings are changed or lost. If you do not wish to accept the new 
values, use Service Mode to enter the previous settings that you wrote 
down prior to initializing.
Total page count and total color page count (counter resets to 
0
)
Transfer kit percentage of life remaining (gauge resets to 100 
percent)
Fuser kit percentage of life remaining (gauge resets to 100 percent)