NAME
DESCRIPTION
SIGNAL KIND
TDCAS_
Transfer drum cleaner clutch solenoid drive signal (Drive at LOW)
DRIVE
TDON_
Transfer discharger ON signal (The transfer discharger voltage is outputted at LOW.)
CONTROL
TDPOS
Transfer drum home position sensor signal (Detection at HIGH)
SENSE
VIDEO_
Video signal (Bit image data signal)
DATA (IMAGE DOT)
VSYNC_
Vertical sync signal (VSYNC) ICU sends print data according to the timing of this signal.
(Outputted for every sheet of print.
SYNCHRONOUS
WDTO_
Watch dog timer monitor (LOW when the CPU is hung up to inhibit operations of the loads.)
(IC10 output is cut.)
MONITOR
WR_
Light strobe signal
STROBE
WTBS_
Waste toner bottle sensor (Detection of full or waster toner bottle installation) detection
signal (LOW: waste toner bottle installed/waste toner bottle is not full)
SENSE
YBSON_
Developing bias ON signal (Yellow) (At LOW, developing bias voltage is outputted.)
CONTROL
YDSEN
Toner concentration sensor detection signal (Yellow) (The output voltage is inversely
proportional to toner concentration.)
SENSE (ANALOG)
YMAGC_
Developing clutch drive signal (Yellow) (Drive at LOW)
DRIVE
YTCONS_
Toner supply clutch solenoid drive signal (Yellow) (Drive at LOW)
DRIVE
3. Video I/F
A. Print data flow block diagram
B. Connection between ICU and PCU
HOST COMP
I/F
ICU
VIDEO I/F
HSYNC
PAGE
PAGAK
VSYNC
PRINT(DATA)
PCU
SCANNING UNT
SYNC
LDON
VIDEO
PRSTT
LEND
DATA LINE
CPU
GATE ARRAY
LASER DIODE
MIRROR
LASER
SENSOR
READY
CBSY
PAGE
PAGAK
CRDY
SRDY
CMD
STS
HSYNV
VSYNC
DATA
RES
GND
+5V
6A
6B
8B
5B
7B
7A
9B
9A
8A
10A
10B
5A
1A,2A,3A,4A
1B,2B,3B,4B
Controller
ICU
(Interface Control unit)
Engine
PCU(Process Control Unit)
IOT(Image Output Terminal)
ESS
(Electronic Sub-System)
SHARP SERVICE MANUAL JX8200SM [13] ELECTRICAL SECTION
13 – 38
Содержание JX-8200
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