Function 04 Pd Density Auto Correction - Oce 3121 Technical & Service Manual

*4* FUNCTION 04 PD Density Auto Correction

This mode must be executed in combination with 200PWM density auto cor-
I
rection and 600PWM density auto correction.
Item Description
PD density auto 1) Start 'PD PRINT'.
correction
I
2) Place a pile of 3 white sheets on the glass platen. Then,
start 'WHITE MEASURE'.
I
3) Place the 15-gradation test sheet on the glass platen.
Then, start 'DENSITY MEASURE'.
4) Check the values under A, B, and D:
20 <= A <=50
–40 <= B <= 40
0 <= D <= 8
5)If the values are as indicated, press 'DATA SET' to
highlight, and press the OK key
A, B, and D are approximate values so that optimum images may still be
Note:
obtained even if the values are outside the range; you may omit "temporary
remedy" as long as the images are optimum.
ed.1
A 15-gradation test pattern will be generated.
The scanner makes a single scan.
Remarks
A, B or D not
OK:
suspect:
drum unit
I
scanning
I
lamp
laser unit
I
composite
I
power sup-
ply
analog proc-
I
essor PBA
image proc-
I
essor PBA
See note
SDS Description 47