44043511TH Rev.2
27 /
Oki Data CONFIDENTIAL
2.3 Power Unit
This is a high voltage power unit consisting of high voltage power source circuit and a low
voltage power unit composed of a power unit consists of an AC filter circuit, low voltage power
source circuit and heater drive circuit.
(1) Low Voltage Power Unit
This circuit generates the following voltage.
(2) High Voltage Power Unit
This circuit generates the following voltage that is more powerful than +24V
necessary for the electrophotographic process, according to the control sequence
from the control PCB.
Output Voltage
Purpose
+5V (1)
PU, Logic Circuit Power Source
+5V (2)
LED Head
+5V (3)
CU
+24V
For Monitor Drive
Output
Voltage
Purpose
Remarks
CH
-0.8 to -1.4kV
Power to Electrification Roller
DB
-100 to -450V/250V
Power to Development Roller
SB
-300 to -700V
Power to Toner Supply Roller
BB
Drop from SB Output with Zener Power to Development Roller
TR
0 to 7kV
Power to Trasfer Roller
Summary of Contents for C910
Page 1: ...Oki Data CONFIDENTIAL Model X Maintenance Manual 032007A...
Page 13: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 12 6 Finisher Unit 5 Tray except for China...
Page 94: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 93 4 2 Parts Layout MAIN ViewA Next page C910 Only...
Page 95: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 94 600dpi 1200dpi Air Flow Air Flow Air flow ViewA...
Page 96: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 95 Printer Unit 120V 230V 1 2 See next page...
Page 97: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 96 Printer Unit 120V 230V 2 2 A A...
Page 98: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 97 Plate Assy Power_120V 230V...
Page 99: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 98 Base Assy 1 2...
Page 100: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 99 Base Assy 2 2 A A...
Page 101: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 100 Side R Assy...
Page 102: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 101 Side F Assy C910 Only...
Page 103: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 102 Duct Drive Assy...
Page 104: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 103 FDR Unit Regist A A C C B B...
Page 105: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 104 FDR Unit MPT A A 2...
Page 106: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 105 Eject Assy...
Page 107: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 106 Plate Top Assy...
Page 108: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 107 Job Offset Assy...
Page 109: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 108 Basket Assy...
Page 119: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 118 Plate Top...