Description: while a new EP-87 toner cartridge is in the machine.
Remedy: 1) Poor contact in the EP-87 toner cartridge connector Action: Reinstall the relevant EP-87 toner cartridge. 2) Poor contact in the toner level sensor connector Action: Reconnect the J220 on the toner level detection PCB and J126 on the DC controller PCB. 3) Defective toner level sensor Action: Replace the toner level detection PCB. 4) Poor contact in the memory data communication line connector Action: Reconnect the J127 on the DC controller PCB. 5) Defective memory tag Action: Replace the relevant EP-87 toner cartridge. 6) Defective DC controller PCB Action: Replace it.
Code: 08
Display: Replace the Drum Cartridge
Description: appears while a new EP-87 drum cartridge is in the machine.
Remedy: 1) Poor contact in the EP-87 drum cartridge connector Action: Reinstall the EP-87 drum cartridge. 2) Poor contact in the waste toner sensor connector Action: Reconnect the J108 on the DC controller PCB. 3) Defective waste toner sensor Action: Replace the waste toner detection PCB. 4) Poor contact in the memory data communication line connector Action: Reconnect the J128 on the DC controller PCB. 5) Defective memory tag Action: Replace the EP-87 drum cartridge. 6) Defective DC controller PCB Action: Replace it.
Code: 09
Display: DENSITY SENSOR ABNORMALITY WARNING
Description: DENSITY SENSOR ABNORMALITY WARNING
Remedy: 1) Poor contact in the density sensor connector Action: Reconnect the J81 on the density detection PCB and J109 on the DC controller PCB. 2) Defective Density sensor Action: Replace the density detection PCB. 3) Defective DC controller PCB Action: Replace it.
Code: E000
Display: E000
Description: Fixing Unit Failure (start-up failure)
Remedy: 1) Broken main thermistor Action: Measure resistance between J119-4 and J119-5 on the DC controller PCB. If the result is not within about 350 kÙ to 520 kÙ (at room temperature of 25 °C), check cables from the J201 for the fixing unit to J205 for the sub thermistor. If nothing is wrong with the cables, replace the fixing film unit. 2) Broken sub thermistor Action: Measure resistance between J119-2 and J119-3 on the DC controller PCB. If the result is not within about 360 K to 530 k (at room temperature of 25 °C), check cables from the J201 for the fixing unit and J205 for the sub thermistor. If nothing is wrong with the cables, replace the fixing film unit. 3) Broken fixing heater Action: If the connector for the power supply unit between J302-1 and J302-3 has no continuity, replace the fixing film unit. 4) Poor contact in connectors Action: Reconnect the J119 on the DC controller, J302 for the power supply unit, and J201 for the fixing unit. 5) Defective power supply unit Action: Replace it. 6) Defective DC controller PCB Action: Replace it.
Code: E001
Display: E001
Description: Fixing Unit Failure (Abnormally high temperature)
Remedy: 1) Shorted main thermistor Action: Measure resistance between the J119-4 and J119-5 on the DC controller PCB. If resistance is not within 350 kÙ to 520 kÙ (at room temperature of 25 °C), check the cables from the J201 for the fixing unit to J204 for the main thermistor. If nothing is wrong with the cables, replace the fixing film unit. 2) Shorted sub thermistor Action: Measure resistance between the J119-2 and J119-3 on the DC controller PCB. If resistance is not within 360 k to 530 k (at room temperature of 25 °C),check the cables from the J201 for the fixing unit to J205 for the sub thermistor. If nothing is wrong with the cables, replace the fixing film unit. 3) Defective power supply unit Action: Replace it. 4) Defective DC controller PCB Action: Replace it.
Code: E002
Display: E002
Description: Fixing Unit Failure (abnormally low temperature)
Remedy: 1) Broken main thermistor Action: Measure resistance between the J119-4 and J119-5 on the DC controller PCB. If the result is not within 350 k to 520 k (at room temperature of 25 °C), check the cables from the J201 for the fixing unit to J204 for the sub thermistor. If nothing is wrong with it, replace the fixing film unit. 2) Broken sub thermistor Action: Measure resistance between the J119-2 and J119-3 on the DC controller PCB. If the result is not within 360 k to 530 k (at room temperature of 25 °C), check the cables from the J201 for the fixing unit to J205 for the sub thermistor. If nothing is wrong with the cables, replace the fixing film unit. 3) Broken fixing heater Action: If the connector for the power supply unit has no continuity between J302-1 and J302-3, replace the fixing film unit. 4) Poor contact in connectors Action: Reconnect the J119 on the DC controller PCB, J302 for the power supply unit, and J201 for the fixing unit. 5) Defective power supply unit Action: Replace it. 6) Defective DC controller PCB Action: Replace it.