9.7 CLEANING SOLENOID CIRCUIT
The main PCB energizes RA301 and 303 for 0.3 seconds to 38 V for
the cleaning blade solenoid at the initial solenoid activation. The RA301 and
303 are then turned off and +24 V is supplied to the cleaning solenoid.
The main PCB sends a pulse signal to the coil overload sensor through the
interface PCB. When the overload sensor is actuated, the pulse signal is
returned to the main PCB. The main PCB is monitoring this signal change for
toner collection coil blocking.
Main PCB
DC Drive PCB
Interface PCB
Overload
Sensor
Cleaning
Sol
Scan 2
Scan 2
A171D527.wmf
31 July 1995
CLEANING
2-65
Summary of Contents for FT8680
Page 3: ...SECTION 1 OVERALL MACHINE INFORMATION ...
Page 8: ...MEMO 31 July 1995 SPECIFICATIONS 1 5 ...
Page 23: ...6 5 IMAGE OVERLAY MODE 2ND SIDE A171V505 wmf PAPER PATH 31 July 1995 1 20 ...
Page 24: ...SECTION 2 DETAILED SECTION DESCRIPTIONS ...
Page 133: ...Timing Chart 1 Stack 2 Paper Feed A171D551 wmf A171D552 wmf 31 July 1995 DUPLEX 2 109 ...
Page 159: ...SECTION 3 INSTALLATION ...
Page 177: ...SECTION 4 SERVICE TABLES ...
Page 229: ...SECTION 5 REPLACEMENT AND ADJUSTMENT ...
Page 362: ...SECTION 6 TROUBLESHOOTING ...