Board Descriptions
A - 8
OF 5300/5600 Serv Man, P/N 59278301
(1)
Copy Mode
Figure A2.2.1 shows the picture signal route in local copy mode.
One-line picture data is transferred to A/D converter (analog/digital) via operational amplifier
from the scanning unit (CIS: contact image sensor) as an analog data. After conversion from
analog data to 6-bit digital data by A/D converter, the picture data is sent to EXSEED (image
processing LSI) and SRAM. Here, the picture data undergoes various kinds of picture
processings (EXSEED and SRAM), converted to two-level binary data (black and white) and
then sent to IOGA (scanning control). The one-line binary picture data from IOGA is stored
into DRAM. When the data for one page has been stored in the DRAM, the data is read out
from the DRAM and sent to IOGA. The data is converted into a serial data by the picture
control of IOGA and transferred to the LED print head for printing as HDATA. Writing of data
into the page memory is also possible during the printing operation.
Summary of Contents for OF5600
Page 376: ...Illustrated Parts List D 2 OKIFAX 5300 5600 Service Manual P N 59278301 1 Cabinet Assembly...
Page 388: ...Illustrated Parts List D 14 OKIFAX 5300 5600 Service Manual P N 59278301 5 Scan Unit...
Page 394: ...Illustrated Parts List D 20 OKIFAX 5300 5600 Service Manual P N 59278301 8 Option Telephone...
