Toshiba ESTUDIO170F, Service Manual

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7
January 2005 © TOSHIBA TEC e-STUDIO170F Circuit Description
7 - 13
7.2.3 Copy
There are the following two copy modes: the normal copy mode in which the documents placed are
printed one by one and the sort copy mode in which all the documents read are stored in memory
before being printed.
Fig.7-14
* Details regarding each area of SDRAM used
(3): DSC I/F > SDRAM (PIX area: Scan buffer)
(4): SDRAM (PIX area: Scan buffer) > SDRAM (SYS area: Image memory)
(5): SDRAM (SYS area: Image memory) > SDRAM (PIX area: Page memory)
(6): SDRAM (PIX area: Page memory) > PTC I/F
(1)
(2)
(3)
(4) (5) (6)
(7)
DSC I/F MODEM I/F PC I/F PTC I/F CODEC I/F
SDRAM controller
IC27
DSC
IC49
USB controller
IC53
MODEM
IC16
CODEC
PIX area* SYS area*
IC1 IC1
SDRAM SDRAM
IC1
SDRAM
IC15
ASIC
(Engine controller)
CIS LSU
Main PBA