Print Server Card; Ar-Nc4T - Sharp AR-P13 Service Manual

1.2

Print Server Card

1.2.1

AR-NC4T

J3
Printer
Board
Interface
• CPU (U100)
33 MHz, 32-bit microcomputer
This is the main element for Print Server Card and controls most of the printer actions.
• Ethernet IC (U220A)
This controls the data communication with computers.
Communication is in LAN connection of 10BASE-T/100BASE-TX.
• 10/100BASE-TX TRANS (U6)
This operates the converting data of between Ethernet IC and LAN.
• EEPROM (U900A)
8Kbyte EEPROM
This stores the setting details of the network environments. This is a fixed memory in which the data can be saved and
deleted. The details saved in it are preserved even if the power of the machine is turned off.
• Flash ROM (U400A)
1Mbyte Flash ROM
This houses the operating programs for the Print Server Card.
• DRAM (U700A, 720A)
512Kbyte x 2=1Mbyte DRAM
Work Memory for the CPU
• 10/100BASE-TX Interface (J2A)
This is the connector of LAN cable for 10BASE-T and 100BASE-TX.
• Printer Board Interface (J3)
This is the connector connects the Print Server Card to the printer board.
U100
CPU
U220A
Ethernet IC
4-17
512Kbyte DRAM x 2
U400A
U900A
1Mbyte
8Kbyte
Flash ROM
EEPROM
10/100BASE-TX
U6
10/100BASE-TX
TRANS
Interface
J2A