CONTROLLER
B273 6-8 SM
6.3 CONTROLLER
6.3.1 MAIN PBA
The Main PBA consists of the following components:
1 Image Processor 11 Motor Driver 21 Line Transceiver
2 Processor ASIC 12 Motor Driver 22 VEDIC X-TAL
3
Flash Memory-Code
High
13 USB 23 CPU X-TAL
4
Flash Memory-Code
Low
14 CMOS-Logic 24 Modem X-TAL
5
Flash Memory-PCL6
High
15 CMOS-Logic 25 USB host X-TAL
6
Flash Memory-PCL6
Low
16 Panasonic 26 PS3 DIMM
7 SDRAM 17 Varta 27 RAM DIMM
8 SDRAM 18 FPGA 28 Jack USB
9 Modem 19 A/D Convertible 29 Jack DIN
10 SRAM 20 USB Host
The Engine Board and Controller Board are both on a single PBA and consist of
the following.
• CPU
• Printer scanner
• Line control functions
The CPU functions as the bus controller, I/O handler, motor driver, and PC inter-
face. The Main Board sends the image video data to the LSU and manages the
electrophotographic printing process.
Circuits on the PBA drive include the following:
• Main motor (paper feed, cartridge, fusing)
• Clutch driver
• Pre-Transfer Lamp driver
• Fusing lamp driver
• CCD driver
• Scan motor driver
• Modem
• Fan driver.
The signals from the Paper Feed Jam Sensor and Paper Empty Sensor are input
to the Main Board from the Power Supply PBA.
To Next Page
Loading...
