
Chapter 3
3-12
F-3-12
3.1.13 Outputs from the DC Controller PCB (1/7)
0006-9367
iR105
J513
+5V
SVR2
-B3
-B2
-B1
SVR2
SVR3
+5V
SVR3
J514
-A10
-A9
-A8
J256
J265
TS1
+5V
TS1S
-B7
-B8
-B9
J504
J139
TS2
+5V
TS2S
-B10
-B11
-B12
J504
J140
TS3
+5V
TS3S
-B15
-B16
-B17
J504
J142
-B7
-B8
J508
M-TEMP
TH1
TH2
H5
J508
-B9
-B10
S-TEMP
J190
J191
DP1
Cassette 3 paper
width detecting
volume
Cassette 4 paper
width detecting
volume
(hopper internal
toner sensor)
Developing
assembly internal
toner sensor
Fixing main
thermistor
Fluorescent
lamp heater
Temperature
sensor
Fixing sub
thermistor
Potential
sensor
(hopper internal
toner lower limit
sensor)
Potential control
PCB
J502
J2-1
J2-2
J2-4
J1-1
J1-2
J1-5
J3-4
J3-3
J3-2
J3-1
-A11
-A12
-A13
-A14
+24V
POT-ON
POT-SIG
DC controller PCB
When toner is absent, '0'.
When toner is absent, '0'.
See III. "Fixing Assembly
Temperature Control" in
Chapter 8.
When toner is absent, '0'.
See III. "Controlling the
Scanning Lamp" in Chapter 3.
J108
PD2001
Light intensity
sensor
Light intensity control
PCB
J506
J853
J852
-1
-2
-5
-1
-2
-3
-4
-5
-B1
-B2
-B3
-B4
-B5
FL-GAIN
HEAT-ON
FL-TH
OV
FL-REF
J138
J180
J187
-4
-5
-6
See D. "Detecting the Cassette
Paper Size" in Chapter 7.
See D. "Detecting the Cassette
Paper Size" in Chapter 7.
When potential control is under
way, '1'.
Analog voltage to suit surface
potential of the drum.
TH3
Summary of Contents for ImageRunner iR8500 Series
Page 1: ...Apr 5 2005 Service Manual iR8500 Series ...
Page 2: ......
Page 6: ......
Page 32: ...Contents ...
Page 33: ...Chapter 1 Introduction ...
Page 34: ......
Page 98: ......
Page 99: ...Chapter 2 Installation ...
Page 100: ......
Page 180: ...Chapter 2 2 78 F 2 272 2 1 1 3 ...
Page 181: ...Chapter 3 Basic Operation ...
Page 182: ......
Page 184: ......
Page 207: ...Chapter 4 Main Controller ...
Page 208: ......
Page 245: ...Chapter 4 4 35 F 4 72 1 2 ...
Page 246: ......
Page 247: ...Chapter 5 Original Exposure System ...
Page 248: ......
Page 252: ......
Page 306: ......
Page 307: ...Chapter 6 Image Processing System ...
Page 308: ......
Page 310: ......
Page 319: ...Chapter 7 Laser Exposure ...
Page 320: ......
Page 322: ......
Page 335: ...Chapter 8 Image Formation ...
Page 336: ......
Page 340: ......
Page 399: ...Chapter 9 Pickup Feeding System ...
Page 400: ......
Page 404: ......
Page 482: ......
Page 483: ...Chapter 10 Fixing System ...
Page 484: ......
Page 524: ......
Page 525: ...Chapter 11 External and Controls ...
Page 526: ......
Page 530: ......
Page 583: ...Chapter 12 MEAP ...
Page 584: ......
Page 586: ......
Page 589: ...Chapter 13 Maintenance and Inspection ...
Page 590: ......
Page 592: ......
Page 610: ...Chapter 13 13 18 F 13 17 1 2 3 ...
Page 648: ......
Page 649: ...Chapter 14 Standards and Adjustments ...
Page 650: ......
Page 654: ......
Page 723: ...Chapter 15 Correcting Faulty Images ...
Page 724: ......
Page 728: ......
Page 792: ......
Page 793: ...Chapter 16 Self Diagnosis ...
Page 794: ......
Page 796: ......
Page 841: ...Chapter 17 Service Mode ...
Page 842: ......
Page 1076: ......
Page 1077: ...Chapter 18 Upgrading ...
Page 1078: ......
Page 1080: ......
Page 1108: ...Chapter 18 18 28 F 18 45 3 Click Start F 18 46 4 Click Save F 18 47 5 Click OK ...
Page 1111: ...Chapter 19 Service Tools ...
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Page 1120: ......
Page 1121: ...Apr 5 2005 ...
Page 1122: ......