Xerox WorkCentre 3220 Service Manual

2-20 WorkCentre 3210/3220 Multifunction Printer Service Manual
Theory of Operation
Controller Part
■ Performs electro-photography
■ Memory control (DDR2 SDRAM, NOR FLASH, Serial FLASH, EEPROM)
■ Handles signal between each driver and PC interface
■ Clock generation
Engine Part
■ Motor Control (BDLC, Stepping)
■ ADF Motor Interface (ADF reserved)
■ LSU (2 beam LVDS Type) control
■ Fuser control (On/Off)
■ I/O signal handling (Sensor/Clutch signal)
■ OPE/ CIS / MODEM / SCF control
■ CRUM control
■ Fan control
Asic (CHRUS3)
Description Specifications
Package
■ 412 PBGA (Total pad number: 412 [each])
Voltage
■ Core Voltage: 1.0 V
■ I/O Pad Voltage: 3.3 V
CPU Core
■ ARM926EJS (16KB I-cache, 16 KB D-cache)
Operating Frequency
■ 400 MHz
DDRC
■ DDR 1, 2 Combo
■ 32 Bits Data Width (internal), 16 Bits Data Width
(external)
■ 133 MHz DRAM interface
■ 16 to 128 MB Array (up to 512 MB total)
■ Supports 4 AHB Slave Ports for individual memory
access
■ Supports 4 bank DDR1 SDRAM and 4 & 8 bank DDR2
SDRAM
■ Supports up to 4 DRAM ranks (chip select output)
ROMC
■ 2 channel NOR Flash Controller
IOC
■ Supports 4 channel external I/O device, 2 channel DMA
I/O
DMAC
■ Contains 3 channels
HPVC
■ Supports 32 bits AHB Master I/F
■ A4 2400 dpi, A3 1200 dpi addressable
■ Supports 200, 300, 400, 600 dpi
■ Supports 4 channels single/dual beam

Xerox WorkCentre 3220 Specifications

General

Print Technology	Laser
Print Resolution	Up to 600 x 600 dpi
Copy Resolution	Up to 600 x 600 dpi
Scan Resolution	Up to 4800 x 4800 dpi (enhanced)
Fax Transmission Speed	33.6 Kbps
Standard Paper Capacity	250 sheets
ADF Capacity	50 sheets
Monthly Duty Cycle	Up to 30, 000 pages
Functions	Print, Copy, Scan, Fax
Memory	64 MB
Duplex Printing	Manual
Operating System Compatibility	Windows, Mac OS, Linux
Connectivity	USB 2.0, Ethernet
Maximum Paper Size	8.5 x 14 in (Legal)