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2.1
Control Board
The control board consists of a single chip CPU, Program & Font ROM's, one or two DRAMs, an
EEPROM, a host interface circuit, and a mechanism driving circuit.
(1) Single chip CPU
The single chip CPU is a custom CPU (32-bit internal bus, 16-bit or 32-bit external bus, 25.54
MHz clock with input frequency from a 12.27 MHz clock) which incorporates the RISC CPU
and its peripheral devices, and has the following functions:
Built-in device
Function
Chip select controller
Control of ROM, DRAM and I/O device
Bus controller
DRAM controller
DMA controller
Transfer of image data from DRAM to video output port
Parallel interface controller
Control of Centronics parallel interface
Video output port
Control of LED head
LED STB output port
Timer
Generation of various control timing
Monitoring of paper running and paper size
Serial I/O port
Control of operator panel, EEPROM, and options
I/O port
Input and output of sensor and motor signals
(2) Program & Font ROM
OKIPAGE 6e/6ex
The Program & Font ROM store the PCL5e emulation program and various types of fonts.
Mask ROM is used for a Program & Font ROM. The mounting location of this Program & Font
ROM varies depending on the type of ROM (for the mounting location see 7.2).
PS Board
The Program & Font ROM store the PostScript program and various types of fonts. Mask
ROM is used for a Program & Font ROM (for the mounting location see 7.3).
Summary of Contents for OKIPAGE 6e
Page 5: ...1 CONFIGURATION...
Page 9: ...1 4 4 High Capacity Second Paper Feeder 5 Multi Purpose Feeder...
Page 15: ...2 OPERATION DESCRIPTION...
Page 48: ...3 PARTS REPLACEMENT...
Page 52: ...3 4 Upper cover unit Figure 3 2 Stacker clamp Upper cover Stacker...
Page 79: ...4 ADJUSTMENT...
Page 97: ...5 PERIODICAL MAINTENANCE...
Page 100: ...6 TROUBLESHOOTING PROCEDURES...
Page 145: ...6 45 Contact Power supply board Contact plate for transfer roller Figure 6 5...
Page 146: ...7 WIRING DIAGRAM...
Page 150: ...7 4 2 Power Supply Board 26 25 1 2 3 PS Board LQ8A 2 OKIPAGE 6ex...
Page 164: ...7 18 2 Option RAM Board LQME PCB...
Page 166: ...8 PARTS LIST...
Page 171: ...Figure 8 3 Base unit I 8 J 6 0 F 9 H 7 C 5 4 E 3 A 4 E M 2 1 D K L 8 5...
Page 179: ...A 7 ON LINE Ready Press key Setting completed ON LINE HP4...
Page 212: ...E 1 Appendix E Multi Purpose Feeder Maintenance...
Page 228: ...E 17 OEL INT 1...
Page 229: ...E 18 Status message display Ready LED display OFF BLINKING ON Undefined...
Page 233: ...E 22 5 2 PCB Layout OLEV 11 PCB...
Page 234: ...E 23 6 PARTS LIST 1 3 7 5 6 4 8 2 Figure 6 1 Multi Purpose Feeder...
Page 236: ...F 1 Appendix F High Capacity Second Paper Feeder Maintenance...
Page 249: ...F 14 OEL INT...
Page 250: ...F 15 Logo print Status message display Ready LED display OFF BLINKING ON Undefined...
Page 254: ...F 19 5 2 PCB Layout OLEV 12 PCB...
Page 255: ...F 20 6 PARTS LIST Figure 6 1 High Capacity Second Paper Feeder 4 6 3 8 2 7 1 9 5...