Brother HL-4000CN Service Manual page 259

Never touch a high-voltage or live section during high-voltage output.
Never touch a drive section during driving.
Output a laser beam with all the covers attached.
To avoid damage, do not keep the laser ON for a long time.
(Turn it to OFF within several seconds.)
4.8.3 NVM Edit
Refer to Section 6. NVM LIST.
Function: Reading or writing NVM
Operation procedure:
1. Enter the Diag. (C/E) mode.
2. Select [IOT Diag] with the
3. Go advance to [NVM Edit] with
button.
4. Select a necessary item for the address section (Ad) with the
The NWM data is read and two to four items are displayed from the input address.
Edit NVM
Ad0001=00000000*
Press the
5. Change the numeric value at the desired data section with the
Edit NVM
Ad0001=c6d0d6d0
If the data section is changed, the * mark disappears to indicate that the current
NVM value has changed.
6. Press the Form Feed/Set button to write the NVM value.
Reference:
Display example of address 01fa
Edit NVM
Ad01fa 14 1e fc 21
and
and
Cursor
or button to moves the cursor to the left or right.
V-49
WARNING
CAUTION
buttons and press the Form Feed/Set button.
buttons and press the Form Feed/Set
and buttons.
buttons.