114
SEP 2004
Ver. 1.2
DP-1520P/1820P/1820E
3. PWM Adjustment
1) Ensure that Ledger / A3 Size Paper is loaded in one of the Trays, and pull out the remaining trays
(including the bypass tray) to disable them.
2) Press “
FUNCTION
”, “
ORIGINAL SIZE
”, and “
3
” keys sequentially to enter the Service Mode.
3) Press the "
8
" key to enter the F8 Mode (Service Adjustment).
4) Press the "
START
" key.
5) Press the "
1
", "
8
" and "
SET
" keys sequentially to enter the F8-18 "
C18 PRT PWM ADJ. PTN.
".
6) Press the "
START
" key to begin the LSU PWM Pattern Printing.
Sample:
4 gray patches are visible in the illustration, the value of the uppermost patch position is "+2" in
our example.
7) Press the "
STOP
" key.
8) Press the "
6
" and the "
START
" keys to enter the F6 Mode (Adjust Parameters).
9) Select "
39 LSU Unit PWM ADJUST
".
10) Press "
SET
" button and enter the value of the gray patch, as established in Step (6).
4.
LSU Adjustment
Test Pattern
In our sample, 4 patches
are visible.
(0)
+2
(-5)
(+5)
Summary of Contents for Workio DP-1820P
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