Canon iR7086, Service Manual

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Chapter 4
4-1
4.1 Construction
4.1.1 Construction/Functions
0010-7836
iR7105 / iR7095 / iR7086
F-4-1
Component Description
[1] Main controller PCB controls the system; controls the memory; serves as an interface for printer/reader inputs/outputs; processes
images; controls the control panel; controls the network communications
[2] SRAM retains service mode settings and HDD management information
(backed up by a lithium battery)
[3] DDR SDRAM
(image memory) temporarily stores image data; temporarily stores system software
(capacity: 1 GB)
[4] Boot ROM holds the start-up program
[5] Hard disk retains image data; holds system software (40 GB)
[6] Lithium battery backs up data in SRAM
Life: about 10 years
[7] PCI slot (peripheral component
interconnect) connects the PCI expansion board (optional) using the functional expansion slot; the PCI expansion board
accommodates an encryption board and a voice board (options)
[8] USB (H) port USB 2.0 host I/F
[9] USB (D) port USB2.0 device I/F
[10] Network port Ethernet I/F
[11] Reader I/F PCB Reader I/F
[12] Video PCB executes pixel/line conversion; controls the laser scanner motor
DCON
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