• Code: 7302
• Description: When printing from the paper tray 1, the registration front sensor does not detect paper pass within the specified time after the T1 paper feed sensor detected paper pass.
• Remedy: • Remove the jammed paper. • Add the paper properly using the paper tray 1 paper guide.
  1 Foreign object in the front of the machine Remove the foreign object. 2 Registration front actuator attachment failure Reattach the registration front actuator. 3 Connection failure of the registration front/rear sensor harness Reconnect the registration front/rear sensor harness. 4 Registration front/rear sensor PCB failure Replace the registration front/rear sensor PCB ASSY. 5 high-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 6 Damaged gears in the paper feeding system Replace the main frame L ASSY. 7 Main PCB failure Replace the main PCB ASSY.

• Code: 7401
• Description: When printing from the paper tray 2, the T2(LT or TT) paper feed sensor does not detect paper pass within the specified time while the T2(LT or TT) paper empty sensor detects some paper set.
• Remedy: • Remove the jammed paper. • Add the paper properly using the paper tray 2 paper guide.
  1 Foreign object in the front of the machine Remove the foreign object. 2 Malfunction of the LT control PCB or TT control PCB Install the latest main firmware. 3 T2(LT or TT) paper pick up roller holder attachment failure Reattach the T2(LT or TT) paper pick up roller holder. 4 T2(LT or TT) paper feed actuator attachment failure Reattach the T2(LT or TT) paper feed actuator. 5 Connection failure of the T2(LT or TT) pickup clutch harness Reconnect the T2(LT or TT) pickup clutch harness. 6 Connection failure of the T2(LT or TT) paper feed sensor harness Reconnect the T2(LT or TT) paper feed sensor harness. 7 PF kit 2 failure Replace the PF kit 2. 8 T2(LT or TT) pickup clutch failure Replace the T2(LT or TT) pickup clutch. 9 T2(LT or TT) paper feed sensor PCB failure Replace the T2(LT or TT) paper feed sensor PCB ASSY. 10 T2(LT or TT) paper empty sensor PCB failure Replace the T2(LT or TT) paper empty sensor PCB ASSY. 11 T2LT control PCB failure Replace the T2LT control PCB ASSY. 12 TT control PCB failure Replace the TT control PCB ASSY. 13 TT low-voltage power supply PCB failure Replace the TT low-voltage power supply PCB ASSY. 14 Main PCB failure Replace the main PCB ASSY.

• Code: 7402
• Description: When printing from the paper tray 2, the registration front sensor or the T2TT jam sensor does not detect paper pass within the specified time after the T2(LT or TT) paper feed sensor detected paper pass.
• Remedy: • Remove the jammed paper. • Add the paper properly using the paper tray 2 paper guide. • Install the latest main firmware.
  1 Foreign object in the front of the machine Remove the foreign object. 2 Registration front actuator attachment failure Reattach the registration front actuator. 3 T2TT jam sensor attachment failure Reattach the T2TT jam sensor. 4 Connection failure of the registration front/rear sensor harness Reconnect the registration front/rear sensor harness. 5 Connection failure of the T2TT jam sensor harness Reconnect the T2TT jam sensor harness. 6 Connection failure of the TT control PCB harness Reconnect the TT control PCB harness. 7 Connection failure of the T2LT control PCB harness Reconnect the T2LT control PCB harness. 8 Connection failure of the T2LT release clutch harness Reconnect the T2LT release clutch harness. 9 T2LT release clutch failure Replace the T2LT release clutch. 10 Registration front/rear sensor PCB failure Replace the registration front/rear sensor PCB ASSY. 11 T2TT jam sensor PCB failure Replace the T2TT jam sensor PCB ASSY. 12 TT control PCB failure Replace the TT control PCB ASSY. 13 T2LT control PCB failure Replace the T2LT control PCB ASSY. 14 high-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 15 Damaged gears in the paper feeding system Replace the main frame L ASSY. 16 Damaged gears in the LT paper feeding system Replace the LT. 17 Damaged gears in the TT paper feeding system Replace the TT. 18 Main PCB failure Replace the main PCB ASSY.

• Code: 7501
• Description: When printing from the paper tray 3, the T3(LT or TT) paper feed sensor does not detect paper pass within the specified time while the T3(LT or TT) paper empty sensor detects some paper set.
• Remedy: • Remove the jammed paper. • Add the paper properly using the paper tray 3 paper guide.
  1 Foreign object in the front of the machine Remove the foreign object. 2 Malfunction of the LT control PCB or TT control PCB Install the latest main firmware. 3 T3(LT or TT) paper pick up roller holder attachment failure Reattach the T3(LT or TT) paper pick up roller holder. 4 T3(LT or TT) paper feed actuator attachment failure Reattach the T3(LT or TT) paper feed actuator. 5 Connection failure of the T3(LT or TT) pickup clutch harness Reconnect the T3(LT or TT) pickup clutch harness. 6 Connection failure of the T3(LT or TT) paper feed sensor harness Reconnect the T3(LT or TT) paper feed sensor harness. 7 PF kit 3 failure Replace the PF kit 3. 8 T3(LT or TT) pickup clutch failure Replace the T3(LT or TT) pickup clutch. 9 T3(LT or TT) paper feed sensor PCB failure Replace the T3(LT or TT) paper feed sensor PCB ASSY. 10 T3(LT or TT) paper empty sensor PCB failure Replace the T3(LT or TT) paper empty sensor PCB ASSY. 11 T3LT control PCB failure Replace the T3LT control PCB ASSY. 12 TT control PCB failure Replace the TT control PCB ASSY. 13 TT low-voltage power supply PCB failure Replace the TT low-voltage power supply PCB ASSY. 14 Main PCB failure Replace the main PCB ASSY.

• Code: 7502
• Description: When printing from the paper tray 3, the registration front sensor or the T2/T3TT jam sensor does not detect paper pass within the specified time after the T3(LT or TT) paper feed sensor detected paper pass.
• Remedy: • Remove the jammed paper. • Add the paper properly using the paper tray 3 paper guide. • Install the latest main firmware.
  1 Foreign object in the front of the machine Remove the foreign object. 2 Registration front actuator attachment failure Reattach the registration front actuator. 3 T2/T3TT jam sensor attachment failure Reattach the T2/T3TT jam sensor. 4 Connection failure of the registration front/rear sensor harness Reconnect the registration front/rear sensor harness. 5 Connection failure of the T2/ T3TT jam sensor harness Reconnect the T2/T3TT jam sensor harness. 6 Connection failure of the TT control PCB harness Reconnect the TT control PCB harness. 7 Connection failure of the T2/ T3LT control PCB harness Reconnect the T2/T3LT control PCB harness. 8 Connection failure of the T2/ T3LT release clutch harness Reconnect the T2/T3LT release clutch harness. 9 Connection failure of the T3TT release clutch harness Reconnect the T3TT release clutch harness. 10 T2/T3LT release clutch failure Replace the T2/T3LT release clutch. 11 T3TT release clutch failure Replace the T3TT release clutch. 12 Registration front/rear sensor PCB failure Replace the registration front/rear sensor PCB ASSY. 13 T2/T3TT jam sensor PCB failure Replace the T2/T3TT jam sensor PCB ASSY. 14 TT control PCB failure Replace the TT control PCB ASSY. 15 T2/T3LT control PCB failure Replace the T2/T3LT control PCB ASSY. 16 high-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 17 Damaged gears in the paper feeding system Replace the main frame L ASSY. 18 Damaged gears in an LT paper feeding system Replace the LT. 19 Damaged gears in the TT paper feeding system Replace the TT. 20 Main PCB failure Replace the main PCB ASSY.

• Code: 7601
• Description: When printing from the paper tray 4, the T4(LT or TT) paper feed sensor does not detect paper pass within the specified time while the T4(LT or TT) paper empty sensor detects some paper set.
• Remedy: • Remove the jammed paper. • Add the paper properly using the paper tray 4 paper guide.
  1 Foreign object in the front of the machine Remove the foreign object. 2 Malfunction of the LT control PCB or TT control PCB Install the latest main firmware. 3 T4(LT or TT) paper pick up roller holder attachment failure Reattach the T4(LT or TT) paper pick up roller holder. 4 T4(LT or TT) paper feed actuator attachment failure Reattach the T4(LT or TT) paper feed actuator. 5 Connection failure of the T4(LT or TT) pickup clutch harness Reconnect the T4(LT or TT) pickup clutch harness. 6 Connection failure of the T4(LT or TT) paper feed sensor harness Reconnect the T4(LT or TT) paper feed sensor harness. 7 PF kit 4 failure Replace the PF kit 4. 8 T4(LT or TT) pickup clutch failure Replace the T4(LT or TT) pickup clutch. 9 T4(LT or TT) paper feed sensor PCB failure Replace the T4(LT or TT) paper feed sensor PCB ASSY. 10 T4(LT or TT) paper empty sensor PCB failure Replace the T4(LT or TT) paper empty sensor PCB ASSY. 11 T4LT control PCB failure Replace the T4LT control PCB ASSY. 12 TT control PCB failure Replace the TT control PCB ASSY. 13 TT low-voltage power supply PCB failure Replace the TT low-voltage power supply PCB ASSY. 14 Main PCB failure Replace the main PCB ASSY.

• Code: 7602
• Description: When printing from the paper tray 4, the registration front sensor or the T2/T3/T4TT jam sensor does not detect paper pass within the specified time after the T4(LT or TT) paper feed sensor detected paper pass.
• Remedy: • Remove the jammed paper. • Add the paper properly using the paper tray 4 paper guide. • Install the latest main firmware.
  1 Foreign object in the front of the machine Remove the foreign object. 2 Registration front actuator attachment failure Reattach the registration front actuator. 3 T2/T3/T4TT jam sensor attachment failure Reattach the T2/T3/T4TT jam sensor. 4 Connection failure of the registration front/rear sensor harness Reconnect the registration front/rear sensor harness. 5 Connection failure of the T2/T3/ T4TT jam sensor harness Reconnect the T2/T3/T4TT jam sensor harness. 6 Connection failure of the TT control PCB harness Reconnect the TT control PCB harness. 7 Connection failure of the T2/T3/ T4LT control PCB harness Reconnect the T2/T3/T4LT control PCB harness. 8 Connection failure of the T2/T3/ T4LT release clutch harness Reconnect the T2/T3/T4LT release clutch harness. 9 Connection failure of the T3/ T4TT release clutch harness Reconnect the T3/T4TT release clutch harness. 10 T2/T3/T4LT release clutch failure Replace the T2/T3/T4LT release clutch. 11 T3/T4TT release clutch failure Replace the T3/T4TT release clutch. 12 Registration front/rear sensor PCB failure Replace the registration front/rear sensor PCB. 13 T2/T3/T4TT jam sensor PCB failure Replace the T2/T3/T4TT jam sensor PCB ASSY. 14 TT control PCB failure Replace the TT control PCB ASSY. 15 T2/T3/T4LT control PCB failure Replace the T2/T3/T4LT control PCB ASSY. 16 high-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 17 Damaged gears in the paper feeding system Replace the main frame L ASSY. 18 Damaged gears in an LT paper feeding system Replace the LT. 19 Damaged gears in the TT paper feeding system Replace the TT. 20 Main PCB failure Replace the main PCB ASSY.

• Code: 7701
• Description: Error code 7701 When printing from the paper tray 5, the T5TT paper feed sensor does not detect paper pass within the specified time while the T5TT paper empty sensor detects some paper set.
• Remedy: • Remove the jammed paper. • Add the paper properly using the paper tray 5 paper guide.
  1 Foreign object in the front of the machine Remove the foreign object. 2 Malfunction of the TT control PCB Connect the TT and install the latest main firmware. 3 T5TT paper pick up roller holder attachment failure Reattach the T5TT paper pick up roller holder. 4 T5TT paper feed actuator attachment failure Reattach the T5TT paper feed actuator. 5 Connection failure of the T5TT pickup clutch harness Reconnect the T5TT pickup clutch harness. 6 Connection failure of the T5TT paper feed sensor harness Reconnect the T5TT paper feed sensor harness. 7 PF kit 5 failure Replace the PF kit 5. 8 T5TT pickup clutch failure Replace the T5TT pickup clutch. 9 T5TT paper feed sensor PCB failure Replace the T5TT paper feed sensor PCB ASSY. 10 T5TT paper empty sensor PCB failure Replace the T5TT paper empty sensor PCB ASSY. 11 TT control PCB failure Replace the TT control PCB ASSY. 12 TT low-voltage power supply PCB failure Replace the TT low-voltage power supply PCB ASSY. 13 Main PCB failure Replace the main PCB ASSY.