Function 06 600Pwm Density Auto Correction - Oce 3121 Technical & Service Manual

*4* FUNCTION 06 600PWM Density Auto Correction

You must execute this mode in combination with PD density auto correction
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and 200PWM density auto correction.
Item
600PWM density
auto correction
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
Description
1) Start '600PWM PRINT'.
A 15-gradation test pattern will be generated.
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2)Place a pile of 5 white sheets on the glass platen.
Then, start 'WHITE MEASURE'.
The scanner makes a single scan.
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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 <= 60
-70 <= B <= 20
0 <= D <= 8
5)If the values are as indicated, press 'DATA
SET' to highlight, and press the OK key.
Remarks
A, B or D not OK:
suspect:
drum unit
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scanning lamp
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laser unit
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composite pow-
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er supply
analog proces-
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sor PBA
image processor
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PBA
See note
SDS Description 49