The Arrangement Plan Of Principal Elements; Printer Board; Control Integrated Circuit - Sharp AR-P13 Service Manual

1.

The Arrangement Plan of Principal Elements

The arrangement and function of the principal elements in each substrate are described in this chapter.
1.1

Printer Board

1.1.1

Control Integrated Circuit

U2
PCI I/F
Controller
U13
ASIC
Rector
U24
PowerPC
603e
U26
Parallel
Controller
• PowerPC 603e (U24)
200MHz, 64-bit microcomputer
This is the main element in the printer board, and this controls most of the following programs of the printer function.
• Double Finger (U25)
The Control Integrated Circuit for printer function.
Control of the bus interface, memory, DMA, timer function, and interruption.
• Parallel Controller (U26)
This controls the communication with the computers connected in parallel.
This performs communication of print data and status signals in conformity to the IEEE-1284 compatible mode, Nibble
mode, and ECP mode.
• RECTOR (U13)
This controls the compression and decompression of print data.
• PLD (U3)
This controls PowerPC and Rector to PCI interface of print data.
• PCI I/F Controller (U2)
This controls the communication to the copier AR-650.
It operates the communication of print data and status signals with PCI bus.
U3
PLD
U25
Double
Finger
4-1