Oce 3121, Техническое и сервисное руководство

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ed.1 SDS Description 47
*4* FUNCTION 04 PD Density Auto Correction
■
This mode must be executed in combination with 200PWM density auto cor-
rection and 600PWM density auto correction.
Note:
A, B, and D are approximate values so that optimum images may still be
obtained even if the values are outside the range; you may omit “temporary
remedy” as long as the images are optimum.
Item Description Remarks
PD density auto
correction 1) Start ‘PD PRINT’.
■
A 15-gradation test pattern will be generated.
2) Place a pile of 3 white sheets on the glass platen. Then,
start ‘WHITE MEASURE’.
■
The scanner makes a single scan.
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 or D not
OK:
suspect:
■
drum unit
■
scanning
lamp
■
laser unit
■
composite
power sup-
ply
■
analog proc-
essor PBA
■
image proc-
essor PBA
See note