Fixing Kyocera FS1900 Printer Error Codes in details

– Printer model: Kyocera FS1900
– Fix Error codes on Kyocera FS1900 model and its description:

Code: 0420
Description: Option paper feeder PF-60 communication error
Communication error between engine board and option paper feeder PF-60.
Causes: Defective gate array U204 on the engine board (KP-864). Blown-out fuse (F202) on the engine board. Improper installation between printer and option paper feeder. Defective harness (S02400) between engine board and option unit interface connector. Improper connector insertion. Defective option paper feeder PF-60.

Code: 0440
Description: Option sorter SO-60 communication error error
Communication error between engine board and option sorter SO-60.
Causes: Defective gate array U204 on the engine board (KP-864). Blown-out fuse (F202) on the engine board. Improper installation between printer and option sorters. Improper connector insertion. Defective main board (KP-948). Defective option sorter SO-60.

Code: 0460
Description: Option duplexer DU-60 communication error
Communication error between engine board and option duplexer DU-60.
Causes: Defective gate array U204 on the engine board (KP-864). Blown-out fuse (F202) on the engine board. Improper installation between printer and option duplexers. Defective harness (S02400) between engine board and option unit interface connector. Improper connector insertion. Defective option duplexer DU-60.

Code: 1210
Description: Option duplexer DU-60 side registration error
Side registration home position error of option duplexer DU-60.
Causes: Defective gate array U204 on the engine board (KP-864). Improper installation between printer and option duplexer, or each option unit. Defective harness (S02400) between engine board and option unit interface connector. Improper connector insertion. Defective option duplexer DU-60.

Code: 2000
Description: Main motor error
The main motor is overloaded.
Causes: Overcurrent in the main motor circuitry due to an excessive torque. Connector insertion error. Defective gate array U204 on the engine board (KP-864). Defective harness between engine board and engine relay board (KP-760). Defective harness between engine relay board (KP-760) and main motor.

Code: 2600
Description: Option bulk paper feeder PF-8E motor error
Motor error in the option bulk paper feeder PF-8E.
Causes: Defective harness (S02400) between engine board and option unit interface connector. Defective option bulk paper feeder.

Code: 2610
Description: Option paper feeder PF-60 (Top) paper feed motor error
Paper feed motor error in the top option paper feeder.
Causes: Defective gate array U204 on the engine board (KP-864). Defective harness (S02400) between engine board and option unit interface connector. Defective paper feeder PF-60.

Code: 2620
Description: Option paper feeder PF-60 (Middle) paper feed motor error
Paper feed motor error in the middle option paper feeder.
Causes: Defective gate array U204 on the engine board (KP-864). Defective harness (S02400) between engine board and option unit interface connector. Defective option paper feeder PF-60.

Code: 2630
Description: Option paper feeder PF-60 (Bottom) paper feed motor error
Paper feed motor error in the bottom option paper feeder.
Causes: Defective gate array U204 on the engine board (KP-864). Defective harness (S02400) between engine board and option unit interface connector. Defective paper feeder PF-60.

Code: 4000
Description: Laser scanner unit (Polygon motor) error
POLRDY* does not go low within 20 seconds after POLON goes low (When starting) or within 16 seconds after REGPAP signal goes high (during printing).
Causes: Defective gate array U204 on the engine board. Defective polygon motor. Improper connector insertion. Defective harness between laser scanner unit and engine board.

Code: 4200
Description: Laser scanner unit (Pin photo diode sensor) error
Laser beam detection failed. The pin photo diode sensor [board] (KP-746) does not deliver a horizontal synchronous signal (PD).
Causes: No laser beam due to the laser diode defect (PD). Soiled or defective pin photo diode sensor. Defective gate array U204 of engine board. Improper connector insertion. Defective harness between engine board and laser scanner unit.

Code: 5300
Description: Eraser lamp error
The ERADEAD signal (delivered from the eraser lamp blown-out detection circuit on the engine board) goes low continuously more than 1 second, while eraser lamp is on.
Causes: Blown-out eraser lamp [board KP-762]. Defective CPU U201 on the engine board. Improper connector insertion to the eraser lamp [board KP-762].

Code: 6000
Description: Fuser unit error
HTEMP remains high for longer than 4 seconds since the heater lamp is on. The heater lamp continues to be turn on for longer than 60 seconds.
Causes: Blown-out thermistor. Blown-out heater lamp. Defective CPU U201 or comparator U205 on the engine board. Improper connector insertion. Defective power supply unit. Defective harness between fuser unit and power supply unit.

Code: 6020
Description: Abnormal high temperature error
CPU U201 detected that the HTEMP* signal (Abnormal temperature of more than approximately 220 °C) is low for more than 3 seconds
Causes: Defective CPU U201 or comparator U205 on the engine board. Defective engine board (KP-864). Defective thermistor. Defective photo coupler on the power supply unit for the heater lamp.

Code: 6400
Description: Zero cross signal error
The ZCROSS signal does not reach the engine board within 3 seconds after power on.
Causes: Defective power supply unit. Defective CPU U201 on the engine board.

Code: 7001
Description: Toner motor error
Toner motor is overloaded. TNMOC is detected by sampling every other 100 ms in 2 seconds since the main and toner motors are activated following the Replace toner Clean printer message after the Toner low TK-60 is detected.
Causes: Overcurrent in the toner motor circuitry due to an excessive torque, caused by hardened toner. Defective gate array U204 on the engine board. Improper connector insertion. Defective harness between developer and high voltage unit. Defective harness between high voltage unit and engine board.

Code: 7350
Description: Toner refreshing mode error
Causes: Defective high voltage unit.

Code: 8010
Description: Option bulk paper stacker HS-8E motor error
Motor error in the option bulk paper stacker HS-8E.
Causes: Defective harness (S02400) between engine board and option unit interface connector. Defective option bulk paper stacker HS-8E.

Code: F0
Description: Main board or LCD controller board error
Communication is failed between the LCD controller board (KP-738) and the main board.fective
Causes: Defective system DIMM [board KP-893]. Defective main board (KP-948). LCD controller board (KP-738).

Code: F010
Description: System DIMM [board] error
Checksum failed with system DIMM [board KP-893] on the main board.
Causes: Defective system DIMM [board KP-893]. Improper system DIMM [board KP-893] insertion to system DIMM slot on the main board (KP-948).

Code: F020
Description: Main or expanded memory error
Checksum failed with main memory (RAM) on the main board or expanded memory (DIMM).
Causes: Defective system main memory (RAM) on the main board (KP-948). Defective main board (KP-948). Defective expanding memory (DIMM) on the main board (KP-948).

Code: F030
Description: General failure
Miscellaneous failure with the main board, other than F0, F010 and F020, above.
Causes: Defective main board (KP-948).

Code: F040
Description: Communication error
Communication between the engine board and the main board is failed.
Causes: Defective gate array (U02) on the main board. Connector failure between the engine board (KP-864) and main board (KP-948). Overrun in the engine system, deactivating the program flash ROM (U202) on the engine board (KP-864).

Code: F070
Description: Flash ROM error
CPU U201 of engine board could not write data failed to flash ROM U202. Write sequence to flash ROM is not successful. Verify error. (Written data does not match the original data.)
Causes: Defective CPU U201 or gate array U204 or flash ROM U202 on the engine board (KP- 864).