7 – 9
Chapter 7 Wiring Diagrams and Signal Information
♦
LVPS overcurrent protection circuit
This circuit stops all outputs, if the power supply voltage 24VDC, 5VDC, or 3.3VDC is shorted.
The circuit is reset, when after the cause of short was removed, the power is turned off, and then
on again after certain time.
* Note that the 5 V power supplies for the ESS and operation panel are excluded. The 5 VDC
power supplies cannot be restored since they use a fuse.
♦
LVPS overvoltage protection circuit
This circuit stops all outputs, if the power supply voltage 24VDC, 5VDC, or 3.3VDC exceeds the
specified voltage respectively.
At this time, the operating point is 32VDC or less for 24VDC, 7VDC or less for 5VDC, or 4.4V or
less for 3.3VDC.
The circuit is reset, when the power is turned off, and then on again after certain time.
♦
REAR FAN output circuit
For the xFAN REAR ON (H) signal, the output voltage varies depending on the status of FAN
LOW signal and FAN STOP signal.
LVPS FAN is controlled by FAN STOP signal only.
♦
Output stop by I/L Switch
Output is stopped by I/L Switch. +24VDC output from LVPS is stopped by turning off the I/L
Switch connected to LVPS.
Signal line name
Description
24V OSC OFF
Control signal for +24 VDC output (High: Output is stopped)
HEAT1
Control signal of Main Lamp placed in FUSER ASSY (LAMP
lights up at "High: HEAT1" and "Low:xHEAT1")
xHEAT1
HEAT2
Control signal of Sub Lamp placed in FUSER ASSY (LAMP
lights up at "High: HEAT1" and "LowxHEAT1")
xHEAT2
HEAT EN
Control signal for AC power supply for Main Lamp and Sub
Lamp placed in FUSER ASSY (High: AC power supply is output)
IL OPEN
Signal for opening/closing INTERLOCK SWITCH (High: Switch
opens)
SLEEP
Control signal for Sleep Mode (High: Output is stopped at +24
VDC, +5 VDC and +3VDC)
xREAR FAN STOP
Control signal for REAR FAN (High: Fan rotates)
xREAR FAN LOW
Control signal for REAR FAN (High: Fan rotates at high speed/
Low: Fan rotates at low speed)
ALM FAN REAR
Alarm signal for REAR FAN (High: Fan fails)
xLVPS FAN STOP
Control signal for LVPS FAN (High: Fan rotates)
LV TYPE
Identifying signal for LVPS
ALM FAN LVPS
Alarm signal for LVPS FAN (High: Fan fails)
FAN LOW
FAN STOP
FAN REAR ON(H)
High
High
24V
Low
High
15V
High
Low
0V
Low
Low
0V
Содержание 5110cn - Color Laser Printer
Страница 1: ...Dell 5110cn Service Manual 12 Nov 2007 ...
Страница 11: ...Intro 9 4 5 6 Caution label regarding Print Head Ida_Sec00_008FA ...
Страница 17: ...Chapter 1 Troubleshooting Chapter 1 Troubleshooting CONTENTS ...
Страница 126: ...1 109 Chapter 1 Troubleshooting 3 5 1 Image Quality Specifications Test chart 1 Parallelism 2 Perpendicularity ...
Страница 127: ...1 110 Chapter 1 Troubleshooting 3 Skew 4 Linearity 5 Magnification Error ...
Страница 178: ...Chapter 2 Operation of Diag Chapter 2 Operation of Diag CONTENTS ...
Страница 241: ...2 63 Chapter 2 Operation of Diag Yellow 20 Black 20 YMC 20 Leg_Sec02_007FA Leg_Sec02_008FA Leg_Sec02_009FA ...
Страница 250: ...Chapter 3 Removal and Replacement Procedures RRPs Chapter 3 Removal and Replacement Procedures RRPs CONTENTS ...
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Страница 263: ...3 13 Chapter 3 Removal and Replacement Procedures RRPs Blank Page ...
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Страница 272: ...3 22 Chapter 3 Removal and Replacement Procedures RRPs RRP1 5 COVER ASSY REAR PL1 1 17 Ten03005KA 6 4 7 5 ...
Страница 278: ...3 28 Chapter 3 Removal and Replacement Procedures RRPs RRP1 8 RIGHT FRONT COVER PL1 1 22 Ida_Sec03_008FB 4 2 3 ...
Страница 284: ...3 34 Chapter 3 Removal and Replacement Procedures RRPs RRP1 11 LEFT FRONT COVER PL1 1 28 Ida_Sec03_011FA 2 1 2 2 ...
Страница 294: ...3 44 Chapter 3 Removal and Replacement Procedures RRPs RRP2 2 RETARD ASSY PL2 1 12 Ida_Sec03_015FB 2 2 3 2 3 3 2 1 2 1 ...
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Страница 306: ...3 56 Chapter 3 Removal and Replacement Procedures RRPs RRP3 5 SWITCH PL3 2 10 Ida_Sec03_020FA 2 3 4 5 ...
Страница 308: ...3 58 Chapter 3 Removal and Replacement Procedures RRPs RRP3 6 HARNESS ASSY OPFPLG PL3 2 11 Ida_Sec03_021FA 2 3 3 4 ...
Страница 310: ...3 60 Chapter 3 Removal and Replacement Procedures RRPs RRP3 7 PAPER PICKUP ASSEMBLY PL3 3 1 Ida_Sec03_022FB 5 5 6 4 ...
Страница 312: ...3 62 Chapter 3 Removal and Replacement Procedures RRPs RRP3 8 ROLL ASSY TURN PL3 3 2 Ida_Sec03_023FB 5 5 7 8 3 4 6 ...
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Страница 359: ...3 109 Chapter 3 Removal and Replacement Procedures RRPs RRP5 5 DRIVE ASSY FUSER PL5 2 25 Ida_Sec03_049FB 9 3 8 7 7 7 6 ...
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Страница 388: ...3 138 Chapter 3 Removal and Replacement Procedures RRPs RRP5 16 ROLL EXIT PL5 4 16 Ten03062KA 3 1 4 2 1 3 2 5 2 2 6 ...
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Страница 452: ...3 202 Chapter 3 Removal and Replacement Procedures RRPs RRP9 7 MACHINE CONTROL UNIT MCU PL9 1 16 Ida_Sec03_112FB 7 7 7 ...
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Страница 458: ...3 208 Chapter 3 Removal and Replacement Procedures RRPs RRP9 8 SENSOR HUM PL9 1 20 Ida_Sec03_095FB 3 5 6 ...
Страница 462: ...3 212 Chapter 3 Removal and Replacement Procedures RRPs RRP9 10 OPTION HDD ASSY PL9 1 25 Ten03119KA 2 3 4 5 4 2 2 2 ...
Страница 467: ...Chapter 4 Plug Jack P J Connector Locations Chapter 4 Plug Jack P J Connector Locations CONTENTS ...
Страница 475: ...Chapter 5 Parts List Chapter 5 Parts List CONTENTS ...
Страница 482: ...5 7 Chapter 5 Parts List Blank Page ...
Страница 489: ...5 14 Chapter 5 Parts List PL3 2 Paper Feeder 2 3 Illustration 1 2 6 5 P471 P171 J17 3 4 4 7 4 4 10 8 9 11 12 Ten05004KA ...
Страница 495: ...5 20 Chapter 5 Parts List PL4 2 Retard Regi assy 2 2 Illustration ...
Страница 497: ...5 22 Chapter 5 Parts List PL5 1 Chute Assy In Out 1 4 Illustration ...
Страница 499: ...5 24 Chapter 5 Parts List PL5 2 Chute Assy In Out 2 4 Illustration ...
Страница 503: ...5 28 Chapter 5 Parts List PL5 4 Chute Assy In Out 4 4 Illustration ...
Страница 505: ...5 30 Chapter 5 Parts List PL6 1 Xerographics Illustration J151 J15 3 4 5 6 4 2 7 1 Ref PL7 1 Ten05012KA ...
Страница 509: ...5 34 Chapter 5 Parts List PL7 2 Development 2 2 Illustration ...
Страница 511: ...5 36 Chapter 5 Parts List PL8 1 Drive Illustration 1 3 3 2 P481 P491 Ten05015KA ...
Страница 512: ...5 37 Chapter 5 Parts List PL8 1 Drive List Item Parts name 1 DRIVE ASSY DEVE 2 DRIVE ASSY MAIN 3 CLAMP ...
Страница 517: ...5 42 Chapter 5 Parts List Blank Page ...
Страница 528: ...6 9 Chapter 6 Principles of Operation Blank Page ...
Страница 540: ...6 21 Chapter 6 Principles of Operation 3 1 2 Reference diagram ...
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Страница 558: ...6 39 Chapter 6 Principles of Operation 3 8 2 Reference diagram ...
Страница 560: ...6 41 Chapter 6 Principles of Operation 3 9 2 Reference diagram Ten06036KA DEVELOPER DRIVE ASSEMBLY MAIN DRIVE ASSEMBLY ...
Страница 581: ...Chapter 7 Wiring Diagrams and Signal Information Chapter 7 Wiring Diagrams and Signal Information CONTENTS ...
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