80
5. TX Enable signal comes in, Tx channel starts to operate. TX channel consists of 2
channels of TX+ and TX-.
6. Enable signal basically plays a role of supplying -1350V to TX-.
7. TX-SENSING plays a role of constantly detecting the current value of 12
μ
A.
TX-SENSING signal delivers a message "LOW LEVEL' to the machine when the
transfer output current is lower than 12
μ
A,and when it is higher than 12
μ
A, it
delivers "HIGH LEVEL".
8. CHG PWM : Controls CHG and PD channel voltage. PD channel use a zenor diode
to always maintain 200V compared to GND.
9. DEV PWM : Controls DEV, TR and BL channel voltage. TR and BL voltage use
zenor diode to always maintain DEV-120V and DEV-300V compared to
DEV output voltage.
CHG
PD
DEV
TR
BL
-TX
+TX
TX-SENSING
PWR Volt.
∘
+24.5V ± 12.5% (+21.44V~+27.56V)
PWR
Current
∘
Max. 350mA
PWM
Signal
∘
Voh 5.0V Pull-up, Vol = Max. 0.8V(at Iol = 40mA, Vcc = 4.75V)
Frequency
∘
24.41KHz ± 1KHz
Rated
Output
Volt.
-1690V
-200V
-620V
DEV-
180V
DEV-
300V
-1350V
+3000V
3.3V
Summary of Contents for M611
Page 1: ...FIELD SERVICE MANUAL M611 M616 M612 M617 CS 2014 6 13 CE Confid ential...
Page 20: ...14 MFP Overview MFP Components...
Page 22: ...16 Paper Path 1 Output bin 2 Manual Tray 3 Base Unit Tray 4 Optional Tray Unit 5 Duplex Unit...
Page 43: ...37...
Page 88: ...82 3 24V Output Section...
Page 89: ...83 4 5V Output Section...
Page 90: ...84 5 AC Drive Section 6 Switching Section...
Page 91: ...85 Circuit HVPS Input Section 1 PWM Input Section...
Page 92: ...86 2 RCC Control Drive Section...
Page 93: ...87 3 High Power Output Section 4 TX SENSING...
Page 94: ...88...
Page 128: ...122 Removing Optional Acufeed Unit 1 Remove 2 harnesses and then 5 screws A...
Page 137: ...131 4 Separate the Exit frame with releasing the left and right side bolts...
Page 138: ...132 5 Release the harness bolts which are jointed to the fusing frame...
Page 157: ...151...
Page 214: ......