Laser Power (Pwm Circuit) - Panasonic FP-D250 User Manual

6. Laser power (PWM circuit) adjustment
Note : This adjustment is required only when the Laser unit has been replaced.
Location
(-5)
(0)
(+5)
Test print
3-48
procedure
1)Place Ledger/A3 size paper in the
sheet bypass tray.
2)Enter the service mode and select
mode " 8 ".
3)Select F8-18 and press the Start key
to make a test print.
4)Count the number of gray steps which
are visible in the F6-39 mode.
No. of Value
gray scale in F6-39
1 +5
2
+4
3
+3
4
+2
5
+1
6
0
7 -1
8
-2
9 -3
10 -4
11 -5
Example :
As four gray steps can be seen in the
figure in the left, input '+2' in the
39.
F6-