Ricoh G031, Руководство по обслуживанию

Страница: 45 / 345

PRINTING
SM 2-1 G031/G032
Det
a
iled
De
s
c
ri
ptions
2. DETAILED SECTION DESCRIPTIONS
2.1 PRINTING
2.1.1 IMAGE DATA PATH
The printer control board receives the print data from the host computer (AT
compatible Windows PC or Macintosh).
•
For the G031, the printer control board has two OBI (Optional Bus Interface)
connectors to connect a network interface board (NIB), RS232C interface, or
HDD unit.
•
For the G032, the printer control board has one OBI connector.
The printer control board generates the print image data and sends it with
commands to the ECB (Engine Control Board).
The printer control board contains the image processing ASIC (ROCKY W). The
ROCKY W ASIC controls the image processing, IEEE1284 interface, DRAM, edge
smoothing, and toner saving. (ASIC: Application Specific Integrated Circuit)
The ECB contains a gate array. The gate array controls LD print timing control and
the serial interface to the printer control board.
Finally, the ECB sends the video data to the LD drive board.
D r u m
E C B
P C A T
Compatible
R O C K Y W
N I B
Macintosh
Ethernet
Parallel
Optional Bus I/F
C N .
Printer Control Board
Gate
Array
LD Drive
Board
LD Unit
G031D502.WMF