• Code: E7-12
• Description: Shading correction (output level) trouble DETAIL 1) CCD output abnormality during shading correction 2) CCD level output recognition error during shading correction
• Remedy: Scanner (reading) optical system does not transmit images (light) normally 1) Scanner (reading) optical system dirt 2) Scanner (reading) optical parts installing position shift REMEDY (Check) 1) Scanner (reading) optical system dirt 2) Scanner (reading) optical parts installing position adjustment (CCD unit, lens, mirror, copy lamp, copy lamp light quantity sensor, shading correction sheet) (Remedy) 1) Scanner (reading) optical system cleaning 2) Scanner (reading) optical parts installing position adjustment (CCD unit, lens, mirror, copy lamp, copy lamp light quantity sensor, shading correction sheet) (After work) 1) Copy density adjustment. TROUBLE POSITION CAUSE CCD level output recognition error during shading correction 1) CCD unit trouble 2) MCU PWB image signal (CCD) input circuit trouble REMEDY (Check) 1) CCD unit output 2) MCU PWB image signal (CCD) input circuit (Remedy) 1) CCD unit replacement 2) MCU PWB replacement (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values. TROUBLE POSITION CAUSE Copy lamp light quantity abnormality 1) Copy lamp trouble 2) Copy lamp control PWB trouble 3) Copy lamp light quantity adjustment trouble REMEDY (Check) 1) Copy lamp 2) Copy lamp control PWB 3) Copy lamp light quantity level (Remedy) 1) Copy lamp replacement 2) Copy lamp control PWB replacement 3) Copy lamp light quantity level adjustment (After work) 1) Copy density adjustment

• Code: E7-14
• Description: ASIC (MCU PWB) trouble DETAIL ASIC (MCU PWB) malfunction.
• Remedy: ASIC internal register operation trouble ASIC (MCU PWB) trouble REMEDY (Check) (Remedy) MCU PWB replacement (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values.

• Code: E7-15
• Description: Shading correction (white level) trouble DETAIL 1) White level output abnormality during shading correction 2) White level output recognition error during shading correction
• Remedy: Scanner (reading) optical system does not transmit images (light) normally. 1) Scanner (reading) optical system dirt 2) Scanner (reading) optical parts installing position shift REMEDY (Check) 1) Scanner (reading) optical system dirt 2) Scanner (reading) optical parts installing position (CCD unit, lens, mirror, copy lamp, copy lamp light quantity sensor, shading correction sheet) (Remedy) 1) Scanner (reading) optical system cleaning 2) Scanner (reading) optical parts installing position adjustment (CCD unit, lens, mirror, copy lamp, copy lamp light quantity sensor, shading correction sheet) After work 1) Copy density adjustment. TROUBLE POSITION CAUSE White level output recognition error during shading correction 1) CCD unit trouble 2) MCU PWB image signal (CCD) input circuit trouble REMEDY (Check) 1) CCD unit output 2) MCU PWB image signal (CCD) input circuit (Remedy) 1) CCD unit replacement 2) MCU PWB replacement (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values. TROUBLE POSITION CAUSE Copy lamp light quantity abnormality 1) Copy lamp trouble 2) Copy lamp control PWB trouble 3) Copy lamp light quantity adjustment trouble REMEDY (Check) 1) Copy lamp 2) Copy lamp control PWB 3) Copy lamp light quantity level (Remedy) 1) Copy lamp replacement 2) Copy lamp control PWB replacement 3) Copy lamp light quantity level adjustment (After work) 1) Copy density adjustment.

• Code: H2-00
• Description: Fusing temperature sensor (thermistor) trouble DETAIL 1) Fusing temperature sensor (thermistor) output level abnormality 2) Fusing temperature sensor (thermistor) output level recognition error.
• Remedy: Fusing temperature sensor (thermistor) signal recognition error 1) Fusing temperature sensor (thermistor) trouble 2) MCU PWB fusing temperature sensor (thermistor) input circuit trouble REMEDY (Check) 1) Fusing temperature sensor (thermistor) 2) MCU PWB fusing temperature sensor (thermistor) input circuit (Remedy) 1) Fusing temperature sensor (thermistor) replacement 2) MCU PWB replacement 3) Reset the trouble with SIM 14. (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values.

• Code: H3-00
• Description: Fusing high temperature trouble DETAIL 1) Fusing temperature sensor (thermistor) output level abnormality 2) Fusing temperature sensor (thermistor) output level recognition error
• Remedy: Fusing temperature sensor (thermistor) signal recognition error 1) Fusing temperature sensor (thermistor) trouble 2) MCU PWB temperature sensor (thermistor) input circuit trouble 3) Fusing temperature sensor (thermistor) dirt REMEDY (Check) 1) Fusing temperature sensor (thermistor) 2) MCU PWB fusing temperature sensor (thermistor) input circuit (Remedy) 1) Fusing temperature sensor (thermistor) replacement 2) MCU PWB replacement 3) Fusing temperature sensor (thermistor) cleaning 4) Reset the trouble with SIM 14. (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values. TROUBLE POSITION CAUSE Heater lamp control signal trouble 1) MCU PWB heater lamp control circuit trouble REMEDY (Check) 1) MCU PWB (Remedy) 1) MCU PWB replacement 2) Reset the trouble with SIM 14. (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values. TROUBLE POSITION CAUSE Heater lamp drive trouble 1) Power PWB heater lamp drive circuit trouble REMEDY (Check) 1) Power PWB (Remedy) 1) Power PWB replacement 2) Reset the trouble with SIM 14. (After work).

• Code: H4-00
• Description: Fusing low temperature trouble DETAIL 1) Fusing temperature sensor (thermistor) output level abnormality 2) Fusing temperature sensor (thermistor) output level recognition error.
• Remedy: Fusing temperature sensor (thermistor) signal recognition error 1) Fusing temperature sensor (thermistor) trouble 2) MCU PWB fusing temperature sensor (thermistor) input circuit trouble REMEDY (Check) 1) Fusing temperature sensor (thermistor) 2) MCU PWB fusing temperature sensor (thermistor) input circuit (Remedy) 1) Fusing temperature sensor (thermistor) replacement 2) MCU PWB replacement 3) Reset the trouble with SIM 14. (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values. TROUBLE POSITION CAUSE Heater lamp control signal trouble 1) MCU PWB heater lamp control circuit trouble REMEDY (Check) 1) MCU PWB (Remedy) 1) MCU PWB replacement 2) Reset the trouble with SIM 14. (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values. TROUBLE POSITION CAUSE Heater lamp drive trouble 1) Power PWB heater lamp drive circuit trouble REMEDY (Check) 1) Power PWB (Remedy) 1) Power PWB replacement 2) Reset the trouble with SIM 14. (After work)

• Code: L1-00
• Description: Scanner (reading) feed trouble. 1) The scanner (reading) feed operation is not performed. 2) The scanner (reading) feed operation is not recognized.
• Remedy: The scanner (reading) mechanism operation is not smoothly made. 1) Scanner (reading) mechanism lock 2) Scanner (reading) mechanism wear. (Check) 1) Scanner (reading) drive section assembly 2) Scanner (reading) sliding section (rail, shaft) (Remedy) 1) Grease up. 2) Scanner (reading) section parts replacement 3) Reset the trouble with SIM 14. (After work) 1) Adjust when the scanner (reading) section parts are disassembled. Scanner home position sensor (MHP) signal recognition error 1) Scanner home position sensor (MHP) trouble 2) MCU PWB scanner home position sensor (MHP) input circuit trouble REMEDY (Check) 1) Scanner home position sensor (MHP) 2) MCU PWB scanner home position sensor (MHP) input circuit (Remedy) 1) Scanner home position sensor (MHP) replacement 2) MCU PWB replacement 3) Rest the trouble with SIM 14. (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values. Scanner (reading) motor drive trouble 1) Scanner (reading) motor trouble 2) MCU PWB scanner (reading) motor control circuit trouble REMEDY (Check) 1) Scanner (reading) motor 2) MCU PWB scanner (reading) motor control circuit trouble (Remedy) 1) Scanner (reading) motor replacement 2) MCU PWB replacement 3) Reset the trouble with SIM 14. (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values.

• Code: L3-00
• Description: Scanner (reading) return trouble. 1) The scanner (reading) dose not return. 2) The scanner (reading) return completion is not recognized.
• Remedy: The scanner (reading) mechanism operation is not smooth. 1) Scanner (reading) mechanism lock 2) Scanner (reading) mechanism wear REMEDY (Check) 1) Scanner (reading) drive section assembly 2) Scanner (reading) sliding section 9rail, shaft) (Remedy) 1) Grease up 2) Scanner (reading) section parts replacement 3) Rest the trouble with SIM 14. (After work) 1) When the scanner (reading) section parts are disassembled, adjust. Scanner home position sensor (MHP) signal recognition error 1) Scanner home positions sensor (MHP) trouble 2) MCU PWB scanner home position sensor (MHP) input circuit trouble REMEDY (Check) 1) Scanner home position sensor (MHP) 2) MCU PWB scanner home position sensor (MHP) input circuit (Remedy) 1) Scanner home position sensor (MHP) replacement 2) MCU PWB replacement 3) Reset the trouble with SIM 14. (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values. TROUBLE POSITION CAUSE Scanner (reading) motor drive trouble 1) Scanner (reading) motor trouble 2) MCU PWB scanner (reading) motor control circuit trouble REMEDY (Check) 1) Scanner (reading) motor 2) MCU PWB scanner (reading) motor control circuit (Remedy) 1) Scanner (reading) motor replacement 2) MCU PWB replacement 3) Reset the trouble with SIM 14 (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values.