• Code: C0840
• Description: RTC error ("Time for maintenance T" appears) <Check at the start up>
• Remedy: 1 Executing U906 The backup battery on the main PWB is faulty, and so, the RTC settings are erased after unplugging the power cord. Execute U906 and reset the display [Maintenance T]. After that, set the date and time (RTC) through System menu. (It is necessary to perform this process every time when unplug/ plug the power cord.) Maintenanc e Mode List Date/Timer/ Energy Saver (Operation Guide - Section 8) 2 Replacing the main PWB The main PWB is faulty, or the backup battery runs out. The user call regarding C0840 is frequent even if performing the previous treatment, replace the main PWB. Detaching and reattaching the Main PWB

• Code: C0980
• Description: 24V power interruption detection 1. Detected 24 V power off signal for 1s continuously. 2. Another service call occurred when passing 100ms after detecting 24V power failure detection signal, and then 24 power supply was recovered.
• Remedy: 1 Resetting the main power The printing process is not properly executed. Turn the power switch and the main power switch off . After 5s passes, turn the main power switch and the power switch on. 2 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . Low voltage PWB - Engine PWB Section 8 "PWBs" 3 Replacing the low voltage PWB The low voltage PWB is faulty. When the +24V generation from the low voltage PWB is not stable, and it lowers, replace the low voltage PWB. Detaching and reattaching the Low Voltage PWB 4 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB

• Code: C1000
• Description: MP lift motor error 1. When the MP lift motor rotates in the descending direction, the MP position sensor does not turn on within 1850ms. 2. When the MP lift motor rotates in the ascending direction, the MP position sensor does not turn off within 1600ms.
• Remedy: 1 Checking the MP lift plate The MP lift plate does not operate properly. Repair or replace the MP lift plate on the MP tray when it does not move vertically. 2 Checking the lift lever The lift lever is not properly attached. Check if the lift lever is vertically shifted by the lift motor cam, or if it has the excessive load. Then, reattach the MP tray. Then, replace the MP tray if it is not fixed. 3 Checking the drive gear The drive gear to lift up the MP lift plate does not rotate properly. Check if the MP lift plate lift-up drive gears rotate smoothly or have no excessive load. And apply the grease (EM-50LP, Part no.: 7BG010009H) to the sliding section and repair the related parts so that they can rotate smoothly. 4 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . Main unit - Paper conveying unit . MP position sensor - Relay connector - Feed drive PWB . Feed drive PWB - Engine PWB Section 8 "PWBs" 5 Replacing the MP lift motor The MP lift motor does not operate properly. Replace the MP lift motor. 6 Checking the MP position sensor The MP position sensor is not attached properly. Reattach MP position sensor. 7 Replacing the MP position sensor The MP position sensor is faulty. Replace MP position sensor. 8 Replacing the feed drive PWB The feed drive PWB is faulty. Replace the feed drive PWB. 9 Firmware upgrade The firmware is not the latest version. Upgrade the engine firmware to the latest version Firmware Update 10 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB

• Code: C1010
• Description: Lift motor 1 error Five times consecutive detection of any one of the below condition. 1. Lift upper limit sensor 1 does not detect on even 16s passed after inserting cassette 1. 2. After turning on lift motor 1, lock signal does not release for 300ms. 3. After detecting lift upper limit sensor 1 OFF during printing, lift upper limit sensor 1 does not turn on even passing 1s from ascending control.
• Remedy: 1 Checking the lift plate The lift plate does not operate properly. Repair or replace the lift plate when it does not move vertically. 2 Checking the drive gear The drive gear to lift up the lift plate does not rotate properly. Check if the lift plate lift-up drive gears rotate smoothly or have no excessive load. And apply the grease (EM-50LP, Part no.: 7BG010009H) to the sliding section and repair the related parts so that they can rotate smoothly. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . Lift motor 1 - Feed drive PWB . Feed drive PWB - Engine PWB Section 8 "PWBs" 4 Checking lift motor 1 Lift motor 1 is faulty. Check the operation of lift motor 1, and replace it if necessary. Detaching and reattaching the Lift Motor 5 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . Lift upper limit sensor 1 - Feed drive PWB . Feed drive PWB - Engine PWB Section 8 "PWBs" 6 Checking lift sensor 1 Lift upper limit sensor 1 is not properly attached, or it is faulty. Reattach lift upper limit sensor 1. Replace it if it is not fixed. 7 Replacing the feed drive PWB The feed drive PWB is faulty. Replace the feed drive PWB. 8 Firmware upgrade The firmware is not the latest version. Upgrade the engine firmware to the latest version Firmware Update 9 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB

• Code: C1020
• Description: Lift motor 2 error Five times consecutive detection of any one of the below condition. 1. Lift upper limit sensor 2 does not detect on even 16s passed after inserting cassette 2. 2. After turning on lift motor 2, lock signal does not release for 300ms. 3. After detecting lift upper limit sensor 2 OFF during printing, lift upper limit sensor 2 does not turn on even passing 1s from ascending control.
• Remedy: 1 Checking the lift plate The lift plate does not operate properly. Repair or replace the lift plate when it does not move vertically. 2 Checking the drive gear The drive gear to lift up the lift plate does not rotate properly. Check if the lift plate lift-up drive gears rotate smoothly or have no excessive load. And apply the grease (EM-50LP, Part no.: 7BG010009H) to the sliding section and repair the related parts so that they can rotate smoothly. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . Lift motor 2 - Feed drive PWB . Feed drive PWB - Engine PWB Section 8 "PWBs" 4 Checking lift motor 2 Lift motor 2 is faulty. Check the operation of lift motor 2, and replace it if necessary. Detaching and reattaching the Lift Motor 5 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . Lift upper limit sensor 2 - Feed drive PWB . Feed drive PWB - Engine PWB Section 8 "PWBs" 6 Checking lift sensor 2 Lift upper limit sensor 2 is not properly attached, or it is faulty. Reattach lift upper limit sensor 2. Then, replace it if it is not fixed. 7 Replacing the feed drive PWB The feed drive PWB is faulty. Replace the feed drive PWB. 8 Firmware upgrade The firmware is not the latest version. Upgrade the engine firmware to the latest version Firmware Update 9 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB

• Code: C1030
• Description: PF lift motor 1 error (Paper Feeder) Object: Paper feeder or Large capacity feeder [PF-7100 (Paper Feeder)] 1. PF lift upper limit sensor 1 does not turn on after passing 16s since cassette 3 was inserted. 2. The lock-up signal is not released for 300ms after turning on of PF lift motor 1. 3. Since PF lift sensor 1 turned off during printing, PF lift upper limit sensor 1 does not turn on after passing 1s from the ascend control. [PF-7110 (Large Capacity Feeder)] 1. PF lift upper limit sensor 1 does not turn on after passing 24s since cassette 3 was inserted. 2. PF lift upper limit sensor 1 does not turn on after passing 3s from the ascend control when starting printing.
• Remedy: 1 Checking the PF lift plate The PF lift plate does not operate properly. Repair or replace the PF lift plate when it does not move vertically. 2 Checking the drive gear The drive gear to lift up the PF lift plate does not rotate properly. Check if the PF lift plate lift-up drive gears rotate smoothly or have no excessive load. And apply the grease (EM-50LP, Part no.: 7BG010009H) to the sliding section and repair the related parts so that they can rotate smoothly. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . PF lift motor 1 - PF PWB Section 8 "PWBs" 4 Checking PF lift motor 1 PF lift motor 1 is faulty. Replace PF lift motor 1. 5 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . PF lift upper limit sensor 1 - PF PWB Section 8 "PWBs" 6 Checking PF lift sensor 1 PF lift upper limit sensor 1 is not properly attached, or it is faulty. Reattach PF lift upper limit sensor 1. Then, replace it if it is not fixed. 7 Replacing the PF PWB The PF PWB is faulty. Replace the PF PWB. Detaching and reattaching the PF PWB

• Code: C1040
• Description: PF lift motor 2 error (Paper Feeder) Object: Paper feeder or Large capacity feeder [PF-7100 (Paper Feeder)] 1. PF lift upper limit sensor 2 does not turn on after passing 16s since cassette 4 is inserted. 2. The lock-up signal is not released for 300ms after turning on of PF lift motor 2. 3. Since PF lift sensor 2 turned off during printing, PF lift upper limit sensor 2 does not turn on after passing 1s from the ascend control. [PF-7110 (Large Capacity Feeder)] 1. PF lift upper limit sensor 2 does not turn on after passing 24s since cassette 4 is inserted. 2. PF lift upper limit sensor 2 does not turn on after passing 3s from the ascend control when starting printing.
• Remedy: 1 Checking the PF lift plate The PF lift plate does not operate properly. Repair or replace the PF lift plate when it does not move vertically. 2 Checking the drive gear The drive gear to lift up the PF lift plate does not rotate properly. Check if the PF lift plate lift-up drive gears rotate smoothly or have no excessive load. And apply the grease (EM-50LP, Part no.: 7BG010009H) to the sliding section and repair the related parts so that they can rotate smoothly. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . PF lift motor 2 - PF PWB Section 8 "PWBs" 4 Replacing PF lift motor 2 PF lift motor 2 is faulty. Replace PF lift motor 2. 5 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . PF lift upper limit sensor 2 - PF PWB Section 8 "PWBs" 6 Checking PF lift sensor 2 PF lift upper limit sensor 2 is not properly attached, or it is faulty. Reattach PF lift upper limit sensor 2. Then, replace it if it is not fixed. 7 Replacing the PF PWB The PF PWB is faulty. Replace the PF PWB. Detaching and reattaching the PF PWB

• Code: C1140
• Description: PF lift motor error (Side deck) Object: Side deck 1. The PF lift upper limit sensor does not turn on even 30s passed after inserting the cassette5. 2. The lock signal is detected for 200ms continuously during the operation of PF lift motor. 3. When start printing, PF lift upper limit sensor does not detect on even passing 2s from ascending control.
• Remedy: 1 Checking the PF lift plate The PF lift plate does not operate properly. Repair or replace the PF lift plate when it does not move vertically. 2 Checking the drive gear The drive gear to lift up the PF lift plate does not rotate properly. Check if the PF lift plate lift-up drive gears rotate smoothly or have no excessive load. And apply the grease (EM-50LP, Part no.: 7BG010009H) to the sliding section and repair the related parts so that they can rotate smoothly. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . PF lift motor - PF PWB Section 8 "PWBs" 4 Checking the PF lift motor The PF lift motor is faulty. Replace the PF lift motor. 5 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . PF lift upper limit sensor - PF PWB Section 8 "PWBs" 6 Checking the PF lift upper limit sensor The PF lift upper limit sensor is not properly attached, or it is faulty. Reattach the PF lift upper limit sensor. Then, replace it if it is not fixed. 7 Checking the PF PWB The PF PWB is faulty. Replace the PF PWB. Detaching and reattaching the PF PWB