39
The LED driver (MSM6731BWAF) corrects the LED illumination by controlling the LED current. The LED
illumination can be set in 16 steps, with 7 steps in the direction of illumination increase in relation to the
standard value, and 8 steps in the direction of decrease. For this reason, the LED correction data is a
4-bit data for each dot.
The relationship between the LED correction data and LED current correction steps with the LED driver
(MSM6731BWAF) used in an LED head is shown below.
LED Correction Data
Correction Data
msb b3
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
b2
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
b1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
lsb b0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Correction
Step
Correction
Mode
+16%
+14%
+12%
+10%
+8%
+6%
+4%
+2%
0%
-2%
-4%
-6%
-8%
-10%
-12%
-14%
Correction by
increasing
illumination
Correction by
decreasing
illumination
No correction
Summary of Contents for 10i
Page 10: ...10 7 PostScript program SIMM...
Page 48: ...48 Upper cover unit Figure 3 2 Upper cover...
Page 119: ...119 Figure 6 5 Contact Power supply sensor board Contact plate for transfer roller...
Page 136: ...136 Figure 8 2 Upper cover unit 2 3 1...
Page 175: ...175 CN3 CN2 SEN2 5 2 PCB Layout OLEV 11 PCB...
Page 176: ...176 Figure 6 1 Multi Purpose Feeder 9 5 7 6 4 1 2 3 8 6 PARTS LIST...
Page 191: ...191 5 2 PCB Layout TQSB 2 PCB CONTROLLER MOTOR DRIVER SEN2 SEN1 OSC PU MOTOR...
Page 192: ...192 Figure 6 1 High Capacity Second Paper Feeder 1 2 4 3 5 6 PARTS LIST...
Page 195: ...195 SECTION1 CABINET CASSETTE ASSEMBLY 8 1 2 3 4 iv 5 6 i i iv 7...
Page 196: ...196 SECTION2 MECHANICAL ASSEMBLY 21 9 11 10 12 13 23 22 14 24 15 16 iii ii 17 19 18 20 A A B B...