Electrical Components
B286/B289 6-100
SM
6.11.3 MCU, IPU
MCU (Main Control Unit)
This is the main control board of the machine. It does the following:
!
System
control
!
Base
engine
control
!
Scanner
control
!
Image
processing
The MCU also sends load signals and supplies power to:
!
Base engine (high voltage power pack, motors, sensors, solenoid, clutches, fusing unit,
RSS, etc.)
!
Scanner (sensors, motors, etc.)
The MCU contains two large blocks, connected by a UART: SCU and ECU.
!
SCU:
(System & Scanner Control Unit). Does overall system and scanner control.
!
ECU:
(Engine Control Unit). Does print engine and image processing control.
!
The MCU DIP switches must always be OFF (default) and they must not be
changed in the field.
Summary of Contents for B286
Page 1: ...B286 B289 SERVICE MANUAL 003165MIU...
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Page 3: ...B286 B289 SERVICE MANUAL...
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Page 5: ...B286 B289 SERVICE MANUAL 003165MIU...
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Page 35: ...INSTALLATION...
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Page 117: ...PREVENTIVE MAINTENANCE...
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Page 127: ...REPLACEMENT AND ADJUSTMENT...
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Page 186: ...Boards B286 B289 3 58 SM 9 Remove the shield cover A x12 10 Remove A MCU x4 x1 B IPU x4...
Page 198: ...Others B286 B289 3 70 SM 4 Remove the cooling fan D x 1 x 3...
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Page 217: ...TROUBLESHOOTING...
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Page 269: ...SERVICE TABLES...
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Page 507: ...DETAILS...
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Page 511: ...Overview SM 6 3 B286 B289 Details 6 1 2 MECHANICAL COMPONENT LAYOUT...
Page 526: ...Image Processing B286 B289 6 18 SM Text Mode...
Page 529: ...Image Processing SM 6 21 B286 B289 Details Patched Original Mode...
Page 530: ...Image Processing B286 B289 6 22 SM Generation Mode...
Page 552: ...Development B286 B289 6 44 SM Toner End Recovery Flow Chart...
Page 613: ...SPECIFICATIONS...
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