2HJ/2HK
2-1-8
Figure 2-1-12Developing section block diagram
Output*
1
: Approximately 400 V DC
Output*
2
: 100 V DC and 1.6 kV p-p (rectangular wave 3 kHz)
Bias high voltage PWB
Developing
magnet bias
output circuit
Developing
magnet bias
output circuit
Engine relay
PWB
YC5-6
YC5-7
YC5-8
YC4-25
YC4-21
YC4-11
YC4-10
YC5-2
YC5-3
YC5-4
YC5-5
TNSEN1
TNSEN2
TNSEN3
TNSEN4
HVBDATD
HVBCLKD
HVBLATD
HVCLK1
HVCLK2
HVCLK3
HVCLK4
Output*
1
Output*
2
Output*
2
Output*
1
Output*
2
Output*
1
Output*
2
Output*
1
Output*
1
Output*
2
6
7
8
2
3
4
5
CN4
CN8
CN5
CN10
CN9
CN11
CN6
CN7
D/A
converter
(IC501)
Black
developer
Yellow
developer
Cyan
developer
Magenta
developer
: Developing magnet roller
: Developing sleeve
: Toner sensor
Engine controller PWB
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