Chapter 6
6-2
F-6-1
[1] Y/M laser driver
[2] Y/M video signal
[3] Y/M laser control signal
[4] Scanner motor control signal
[5] C/Bk video signal
[6] C/Bk laser control signal
[7] BD circuit
[8] BD signal
[9] C/Bk laser driver
[10] Imaging lens
[11] Reflecting mirror
[12] Polygon mirror
[13] Scanner motor
M-CON : main controller
D-CON : DC controller
The machine's laser scanner unit uses a single scanner motor (polygon mirror motor) to scan 4 laser beams across the surface of the photosensitive drum, thus saving
space (1-polygon mirror/4-laser beam method; Note 2).
The laser/scanner unit uses the following sequence when making a full-color print:
1) The print command arrives from the main controller. In response, the DC controller turns on the scanner motor to rotate the 6-facet mirror.
2) When the scanner motor starts to rotate, the DC controller uses the scanner motor control signal and the BD signal to make sure that the scanner motor rotates
at a specific speed.
3) When the revolution of the scanner motor has reached a specific speed, the DC controller sends video signals for individual colors (YMCBk) to the laser driver
PCB.
4) In response, the respective laser driver turns on the laser diode.
5) The resulting laser beam hits the 6-facet mirror, which is rotating at a specific speed.
6) The laser beam then is reflected by the 6-facet mirror, and is moved to the imaging lens and the reflecting mirror found in front of the mirror to reach the surface
of the photosensitive drum.
Drum
Y
M
C
Bk
Drum
Drum
Drum
[2] [3]
[4]
[5]
[6]
[8]
[11]
[11]
[12]
[10]
[10]
[13]
[1]
[12]
[10]
[10]
[10]
[10]
[11]
[11]
[7]
[9]
D-CON
M-CON
Summary of Contents for iR C3380 series
Page 1: ...Aug 29 2006 Service Manual iR C3380 2880 Series...
Page 2: ......
Page 6: ......
Page 23: ...Chapter 1 Introduction...
Page 24: ......
Page 26: ......
Page 52: ......
Page 53: ...Chapter 2 Installation...
Page 54: ......
Page 127: ...Chapter 3 Basic Operation...
Page 128: ......
Page 130: ......
Page 136: ......
Page 137: ...Chapter 4 Main Controller...
Page 138: ......
Page 160: ......
Page 161: ...Chapter 5 Original Exposure System...
Page 162: ......
Page 188: ...Chapter 5 5 24 F 5 68 4 Remove the original sensor 2 hook 1 F 5 69...
Page 189: ...Chapter 6 Laser Exposure...
Page 190: ......
Page 192: ......
Page 206: ......
Page 207: ...Chapter 7 Image Formation...
Page 208: ......
Page 256: ......
Page 257: ...Chapter 8 Pickup Feeding System...
Page 258: ......
Page 262: ......
Page 303: ...Chapter 9 Fixing System...
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Page 306: ......
Page 321: ...Chapter 10 Externals and Controls...
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Page 326: ......
Page 336: ...Chapter 10 10 10 F 10 10 2 Remove the check mark from SNMP Status Enabled...
Page 337: ...Chapter 10 10 11 F 10 11...
Page 359: ...Chapter 11 MEAP...
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Page 401: ...Chapter 12 RDS...
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Page 411: ...Chapter 13 Maintenance and Inspection...
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Page 416: ...Chapter 13 13 2 F 13 1 8 9 1 2 3 3 5 6 7 10 11 12 13 14 4...
Page 421: ...Chapter 14 Standards and Adjustments...
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Page 424: ......
Page 431: ...Chapter 15 Correcting Faulty Images...
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Page 459: ...Chapter 16 Self Diagnosis...
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Page 462: ......
Page 481: ...Chapter 17 Service Mode...
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Page 484: ......
Page 571: ...Chapter 18 Upgrading...
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Page 603: ...Chapter 19 Service Tools...
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Page 609: ...Aug 29 2006...
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