Construction; Construction/Functions - Canon imageRUNNER 7095 Service Manual

4.1 Construction

4.1.1 Construction/Functions

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