Description: The path between the sub hopper and the developing assembly is clogged with toner.
The developing assembly toner sensor detects the absence of toner, while the sub hopper toner sensor detects the presence of toner. With the developing clutch turned on, the hopper feedscrew motor is rotated for 1 sec intermittently 194 times; still, the developing assembly toner sensor does not detect the presence of toner.
Remedy: Replace the developing assembly toner sensor. Replace the sub hopper toner sensor. Replace the DC control PCB.
Code: E024-0000
Description: The developing assembly connector is disconnected.
The connection detection signal is absent continuously for 100 msec.
Remedy: Replace the developing assembly toner sensor. Connect the connector. Replace the DC controller PCB.
Code: E025-0000
Description: The hopper motor or the bottle motor is faulty.
The sub hopper toner sensor connection detection signal is absent for 100 msec 10 times in sequence.
Remedy: Replace the sub hopper toner sensor. Connect the connector. Replace the detection PCB.
Code: E025-0001
Description: The hopper motor or the bottle motor is faulty.
While the hopper motor is rotating, the motor error lock signal is detected continuously 4 times every 56 msec. Or, while the bottle motor is rotating, the motor error lock signal is detected 22 times in sequence every 10 msec.
Remedy: Replace the hopper motor. Replace the bottle motor. Replace the DC controller PCB.
Code: E032-0001
Description: The NE controller counter malfunctions.
An open circuit is detected for the count pulse signal.
Remedy: Turn off the main power, and check the cable for an open circuit; then, turn the main power back on.
Code: E064-0001
Description: The voltage of the power supply is faulty (high-voltage error).
The value read from the EEPORM is outside a specific range.
Remedy: Turn off and then back on the main power. Replace the EEPROM.