Dell 1600n - Multifunction Laser Printer B/W Service Manual page 151

2) Flash Memory : Record System Program, and download System Program by PC INTERFACE.
FAX for Journal List, and Memory for One Touch Dial, Speed Dial List.
- Size : 4M Byte
- Access Time : 70 nsec
3) SDRAM : is used as Swath Buffer in Printing, Scan Buffer in Scanning, ECM Buffer in FAX receiving, and
System Working Memory Area
- size 32MB : 32Mbyte(Basic).
TBD MB :System Working Memory Area and Scan Buffer
TBD MB :FAX Memory Receive Area
TBD MB :Printing System Working Memory Area
- Max Frequency : 133MHz
- store Fax Receive Memory Data by using Battery
MAIN
CONTROLLER
(CPU, DMAC)
DATA
MEMORY
data bus address bus
control signals
IMAGE SENSOR
data bus
CIP4
control signals
ANALOG
FRONT END
Circuit Diagram
address bus
SRAM
SRAM
Service Manual
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