Board Layout
Board Block Diagram
This machine employs the GW (Grand Workware) architecture, which allows the printer to be expanded
by installing simple modular components (ROM DIMMs) in the controller board or installing optional
boards in the two controller board slots.
Here is a brief summary of the boards and their functions. For more details, refer to the Point-to-Point diagram
and list of components supplied with the printer.
BICU (Base Engine and Image Control Unit)
Controls all machine functions both directly and through other control boards.
LDB (Laser Diode Board)
Powers the laser diode. Output level is controlled to compensate for changes in temperature and humidity
to maintain constant laser write intensity.
Controller
Controls memory and all peripheral devices. Two SD card slots are provided, one for servicing (firmware
updates) and one for SD card options. In addition to the RAM and NVRAM, the NIC and USB functions
are also built into this controller. The HDD unit is also attached to the controller board. The Controller Board
has external slots to accommodate the following interfaces:
Board Layout
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Summary of Contents for A-P4
Page 1: ...Model A P4 Machine Code G147 SERVICE MANUAL May 12th 2006 Subject to change...
Page 27: ...Installation Flowchart 1 Installation 26 1...
Page 59: ...3 Reattach the application cover x1 1 Installation 58 1...
Page 65: ...2 Preventive Maintenance 64 2...
Page 72: ...Left Covers 1 Left upper cover A x4 2 Controller cover B x2 Covers and Common Procedures 71 3...
Page 82: ...Laser Unit 81 3...
Page 103: ...5 Cover C x2 6 Gear D x1 7 Lower paper feed unit E x2 x1 3 Replacement and Adjustment 102 3...
Page 128: ...Duplex Unit Duplex Cover Removal 1 Duplex unit cover A x4 Duplex Unit 127 3...
Page 181: ...4 Troubleshooting 180 4...
Page 289: ...Self Diagnostic Test Flow 5 Service Tables 288 5...
Page 306: ...Controller Block Diagram Board Layout 305 6...
Page 319: ...What Happens When a New Unit Is Detected 6 Details 318 6...
Page 367: ...6 Details 366 6...
Page 379: ...MEMO 378...
Page 380: ...MEMO 379...
Page 381: ...MEMO 380...