Panasonic DP-8032, Service Manual

Page: 228 / 397

228
DP-8032/8025
2008 Ver.1.2
3. Control Method
4. QUANTUM Adjustment
Compensation Values after DP-8032 / 8025 Adjustment
Reference for DP-8060 / 8045 / 8035
F5-25 QUANTUM ON
F6-80: QUANTUM Exposure Voltage
F6-81: QUANTUM Bias DC Voltage
F6-82: QUANTUM Charge Voltage
Print Density Data
Print Density Data
Image Density
Image Density
Ideal
Curve
High Density
(Black Patch)
Low Density
(Check Patch)
Control Point
255
0
255 0
Table1
Table2
Table3
Table4
Table5
Text, T/P Mode Control Photo Mode Control
Check Pattern
Black Density
Pattern
Black Density: Laser
Pulse Width Duty Control
Laser Pulse Duty Control
at the edge of the print image.
QUANTUM II
Black Density: Grid Voltage (HVPS)
and Laser Power Control
Toner
Laser
Laser
ON
Print Data Input
Printed Data Output
Toner
Print Image Edge Control
Detects the edge of the image and
controls the laser pulse width
(On/Off timing).
QUANTUM adjusts
the pulse width (On/Off
timing) of the Laser to
maintain constant copy
quality.
In Photo Mode, QUANTUM
selects the optimum photo
mode table.
F5-25 QUANTUM ON
F6-80: QUANTUM Photo Mode Read
F6-81: QUANTUM Halftone Read (Laser Duty of Checkered Pattern)
F6-82: QUANTUM Black Read (Laser Duty of Black Pattern)
*1: Select Photo Mode : Gamma Table Number
*2: Laser Pulse Width Duty from 50% (127) to 100% (255)
F5-25 QUANTUM OFF
F6-95: Manual Photo Adjustment (1-5)*1
F6-96: Manual Halftone Adjustment (Laser Duty of Checkered Pattern) (127-255)*2
F6-97: Manual Black Adjustment (Laser Duty of Black Pattern) (127-255)*2