General Procedures and Information
6-18
09/06
PHASER 3124 / PHASER 3125
HVPS
The HVPS creates the high voltage of THV/MHV/Supply/Dev and supplies it to the developer part
for making best condition to display the image. The HVPS part takes the 24V and outputs the high
voltage for THV/MHV/BIAS, and the output high voltage is supplied to the toner, OPC cartridge,
and transfer roller.
•
Transfer High Voltage (THV+)
Input Voltage : 24 V DC °
±
15%
Out Voltage : Max. +1.3KV °
±
15% (Cleaning,200 Mega Ohms
)
Out Voltage Trigger : 6.5µA
Input Voltage Variation :
±
5% below (Variation 21.6V~ 26.4V)
Out Voltage Rising Time : 100 ms Max
Out Voltage Falling Time : 100 ms Max
Transfer Variation Voltage on Environment Variation : +650 V (Duty 10%) ~ 5KV (Duty
90%)
Control method on environment : THV-PWM ACTIVE, transfer active signal, of environ-
ment sensing voltage is input and get feedback current, and recalculate it to resistance.
Control method on transfer output voltage : It is controlled by changing its duty of
THVPWM signal as follows. 10% Duty : +650V, 90% Duty : +5KV
±
5%
•
Charge Voltage (MHV)
Input Voltage : 24 V DC
±
15%
Out Voltage : -1.3KV ~
±
3.2%
Out Voltage Rising Time : 50 ms Max
Out Voltage Falling Time : 50 ms Max
Out Voltage Range : 30M
Ω
~ 1000M
Ω
Output Control Signal (MHV-PWM) : CPU is HV output when PWM is low
•
Developing Voltage (DEV)
Input Voltage : 24 V DC
±
15%
Output Voltage: -350V
±
4.6%
Output Voltage fluctuation range: PWM Control
Input contrast of the output stability degree :
±
5 % or less
Loading contrast :
±
5 % or less
Output Voltage Rising Time : 50 ms Max
Output Voltage Falling Time : 50 ms Max
Output Loading range : 10Mߟ ~ 1000
Output Control Signal (BIAS-PWM) : the CPU output is HV output when PWM is low.
Summary of Contents for 3124 - Phaser B/W Laser Printer
Page 2: ......
Page 3: ...708P88624 09 06 Service Manual 708P88624 PHASER 3124 PHASER 3125 ...
Page 6: ...Introduction ii 09 06 PHASER 3124 PHASER 3125 Page intentionally blank ...
Page 18: ...Service Call Procedures 1 2 09 06 PHASER 3124 PHASER 3125 Page intentionally blank ...
Page 22: ...Status Indicator RAPs 2 2 09 06 PHASER 3124 PHASER 3125 Page intentionally blank ...
Page 42: ...Status Indicator RAPs 2 22 09 06 PHASER 3124 PHASER 3125 Page intentionally blank ...
Page 44: ...Image Quality 3 2 09 06 PHASER 3124 PHASER 3125 Page intentionally blank ...
Page 64: ...Repairs Adjustments 4 2 09 06 PHASER 3124 PHASER 3125 Page intentionally blank ...
Page 82: ...Repairs Adjustments 4 20 09 06 PHASER 3124 PHASER 3125 Page intentionally blank ...
Page 84: ...Spare Parts List 5 2 09 06 PHASER 3124 PHASER 3125 PL 1 Main Assembly ...
Page 86: ...Spare Parts List 5 4 09 06 PHASER 3124 PHASER 3125 PL 2 Frame Assembly ...
Page 88: ...Spare Parts List 5 6 09 06 PHASER 3124 PHASER 3125 PL 3 Fuser Assembly ...
Page 90: ...Spare Parts List 5 8 09 06 PHASER 3124 PHASER 3125 PL 4 Paper Path Assembly ...
Page 92: ...Spare Parts List 5 10 09 06 PHASER 3124 PHASER 3125 PL 5 Main Drive Assembly ...
Page 94: ...Spare Parts List 5 12 09 06 PHASER 3124 PHASER 3125 Page intentionally blank ...
Page 96: ...General Procedures Information 6 2 09 06 PHASER 3124 PHASER 3125 Page intentionally blank ...
Page 136: ...Wiring Diagrams 7 2 09 06 PHASER 3124 PHASER 3125 Page intentionally blank ...
Page 137: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 3 WD 1 PJ Locations Figure 1 ...
Page 142: ...Wiring Diagrams 7 8 09 06 PHASER 3124 PHASER 3125 WD 6 Phaser 3124 Main PBA 1 5 Figure 6 ...
Page 143: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 9 WD 7 Phaser 3124 Main PBA 2 5 Figure 7 ...
Page 144: ...Wiring Diagrams 7 10 09 06 PHASER 3124 PHASER 3125 WD 8 Phaser 3124 Main PBA 3 5 Figure 8 ...
Page 145: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 11 WD 9 Phaser 3124 Main PBA 4 5 Figure 9 ...
Page 146: ...Wiring Diagrams 7 12 09 06 PHASER 3124 PHASER 3125 WD 10 Phaser 3124 Main PBA 5 5 Figure 10 ...
Page 147: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 13 WD 11 Phaser 3125 Main PBA 1 11 Figure 11 ...
Page 148: ...Wiring Diagrams 7 14 09 06 PHASER 3124 PHASER 3125 WD 12 Phaser 3125 Main PBA 2 11 Figure 12 ...
Page 149: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 15 WD 13 Phaser 3125 Main PBA 3 11 Figure 13 ...
Page 150: ...Wiring Diagrams 7 16 09 06 PHASER 3124 PHASER 3125 WD 14 Phaser 3125 Main PBA 4 11 Figure 14 ...
Page 151: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 17 WD 15 Phaser 3125 Main PBA 5 11 Figure 15 ...
Page 152: ...Wiring Diagrams 7 18 09 06 PHASER 3124 PHASER 3125 WD 16 Phaser 3125 Main PBA 6 11 Figure 16 ...
Page 153: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 19 WD 17 Phaser 3125 Main PBA 7 11 Figure 17 ...
Page 154: ...Wiring Diagrams 7 20 09 06 PHASER 3124 PHASER 3125 WD 18 Phaser 3125 Main PBA 8 11 Figure 18 ...
Page 155: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 21 WD 19 Phaser 3125 Main PBA 9 11 Figure 19 ...
Page 156: ...Wiring Diagrams 7 22 09 06 PHASER 3124 PHASER 3125 WD 20 Phaser 3125 Main PBA 10 11 Figure 20 ...
Page 157: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 23 WD 21 Phaser 3125 Main PBA 11 11 Figure 21 ...
Page 158: ...Wiring Diagrams 7 24 09 06 PHASER 3124 PHASER 3125 WD 22 Connector Circuit Diagram Figure 22 ...
Page 159: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 25 WD 23 SMPS Figure 23 ...
Page 160: ...Wiring Diagrams 7 26 09 06 PHASER 3124 PHASER 3125 WD 24 HVPS 1 3 Figure 24 ...
Page 161: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 27 WD 25 HVPS 2 3 Figure 25 ...
Page 162: ...Wiring Diagrams 7 28 09 06 PHASER 3124 PHASER 3125 WD 26 HVPS 3 3 Figure 26 ...
Page 163: ...Wiring Diagrams PHASER 3124 PHASER 3125 09 06 7 29 WD 27 Phaser 3124 Block Diagram Figure 27 ...
Page 164: ...Wiring Diagrams 7 30 09 06 PHASER 3124 PHASER 3125 WD 28 Phaser 3125 Block Diagram Figure 28 ...
