Sharp JX-8200 Service Manual page 194

SHARP SERVICE MANUAL JX8200SM [13] ELECTRICAL SECTION
NAME
CTMGB Toner motor drive control signal B (Color) (Pulse signal)
D0 Operation panel display data signal
D1 Operation panel display data signal
D2 Operation panel display data signal
D3 Operation panel display data signal
DATA_ Print data signal Outputted from ICU in synchronization with HSYNC.
DLON_ Discharge lamp drive signal (Drive at LOW)
DOP_ Cabinet open/close detection signal (LOW when cabinet open/Scanner unit, drive power,
and driver lines are stopped.)
DVMLK_ LOW when developing motor rotation reaches the specified level (normal rotation).
DVMON_ Developing motor drive signal (Drive at HIGH)
EXPE Paper empty detector signal (option paper feed unit) (HIGH when detected)
EXPFC_ Paper transport roller clutch drive signal (Option paper feed unit) (LOW at drive)
EXPS0 Option cassette size detection signal 0
EXPS1 Option cassette size detection signal 1
EXPS2 Option cassette size detection signal 2
EXPUS_ Paper pick-up clutch drive signal (Option paper feed unit) (Drive at LOW)
EXPUSD Option paper feed unit installation detection signal (Detection at HIGH)
FMON_ Fan motor drive signal (Fusing section) (Drive at LOW)
FMON2_ Fan motor drive signal (Rear section) (Drive at HIGH)
FMSCL Clock signal for NV-RAM
FMSDA NV-RAM data signal (Various control data, counter data, etc.)
FSCOM Fusing motor drive power (+24V)
FSMA Fusing motor drive signal A (Pulse signal)
FSMA_ Fusing motor drive signal A_ (Pulse signal)
FSMB Fusing motor drive signal B (Pulse signal)
FSMB_ Fusing motor drive signal B_ (Pulse signal)
FSMD Fusing motor drive clock signal
FSMDA Fusing motor drive control signal A (Pulse signal)
FSMDA_ Fusing motor drive control signal A_ (Pulse signal)
FSMDB Fusing motor drive control signal B (Pulse signal)
FSMDB_ Fusing motor drive control signal B_ (Pulse signal)
FSUF_ Fusing unit fuse cut drive signal (Used to blow off the fuse at LOW.)
FSUFN Fusing unit fuse cut detection signal (Used to check the fuse to detect that the developing
unit is a new one or not. LOW when new one.)
GAMMA Image density sensor detection signal (During image correction, toner patch image density
is detected. During print operation, paper jam detection is performed.)
In color toner image detection, the greater the toner concentration is, the higher the sensor
output is. In black toner image density detection, on the contrary, if the sensor output
remains at high level during printing, it is judged as a paper jam.
GBL_ Main charger grid voltage control signal (Output voltage switch signal)
GBM_ Main charger grid voltage control signal (Output voltage switch signal)
GMCON Image density sensor LED current control signal (The higher the voltage is, the greater the
LED current is.)
GRAS_ Lift clutch drive signal (Drive at LOW)
HFIN_ Manual paper feed paper detection signal (Detection at LOW)
HLON_ Heater lamp drive signal (Drive at LOW)
HLSEN_ Heater lamp monitor signal (Used to monitor ON/OFF of the heater lamp. LOW when the
heater lamp is ON.)
HSYNC_ Laser beam horizontal sync signal (Left margin reference signal) (Made from SYNC_
(SYNCG) signal)
KBSON Developing bias ON signal (Black) (Bias voltage for developing is outputted at LOW.)
KDSEN Toner concentration sensor detection signal (Black) (The output voltage is inversely
proportional to toner concentration.)
KDVF_ Developing unit fuse cut drive signal (Black) (Used to blow off the fuse at LOW.)
KDVFN Developing unit fuse cut detection signal (Black) (Used to check the fuse to detect that the
developing unit is a new one or not. HIGH when new one.)
KMAGC_ Developing clutch drive signal (Black) (Drive at LOW)
KTMA Toner motor drive signal A (Black) (Pulse signal)
DESCRIPTION
13 – 35
SIGNAL KIND
CONTROL
DATA
DATA
DATA
DATA
IMAGE DATA
DRIVE
DETECT/SWITCH
STATUS
DRIVE
DETECT
DRIVE
SENSE
SENSE
SENSE
DRIVE
DETECT
DRIVE
DRIVE
CLOCL
DATA
POWER
DRIVE
DRIVE
DRIVE
DRIVE
CLOCK
CONTROL
CONTROL
CONTROL
CONTROL
DRIVE
DETECT
SENSE (ANALOG)
CONTROL
CONTROL
CONTROL
DRIVE
DETECT
CONTROL
MONITOR
SYNCHRONOUS
CONTROL
SENSE (ANALOG)
DRIVE
DETECT
DRIVE
DRIVE