• Code: C2203
• Description: Drum motor CMY steady-state error The ready signal is at the H level for 2s continuously after drum motor CMY become stable.
• Remedy: 1 Checking drum motor CMY The drum motor CMY drive are faulty. Execute U030 [Drum COL] to check the drum motor CMY operation. Check if the drive gears rotate and have no excessive load, and apply the grease (EM-LP, Part no: 7BG010009H) to the sliding section and repair the related parts so that they can rotate smoothly. Maintenanc e Mode List 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. . Drum motor CMY - Feed image PWB . Feed image PWB - Engine PWB Section 8 "PWBs" 3 Replacing drum motor CMY Drum motor CMY are faulty. Replace drum motor CMY. 4 Checking the drum unit and the developer unit The drum unit is faulty. Check if the drum or drum screw rotates by manually and if not, replace the drum unit. Detaching and reattaching the Drum Unit 5 Replacing the feed image PWB The feed image PWB is faulty. Replace the feed image PWB. 6 Firmware upgrade The firmware is not the latest version. Upgrade the engine firmware to the latest version Firmware Update 7 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB

• Code: C2300
• Description: Fuser motor error The ready signal is at the H level for 1.5s continuously during the fuser motor drive.
• Remedy: 1 Checking the fuser motor The fuser motor operation is faulty. Execute U030 [Fuser] to check the fuser motor operation. Check if the drive gears rotate and have no excessive load, and apply the grease (EM-LP, Part no: 7BG010009H) to the sliding section and repair the related parts so that they can rotate smoothly. Maintenanc e Mode List 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. . Fuser motor - Feed drive PWB . Feed drive PWB - Engine PWB Section 8 "PWBs" 3 Replacing the fuser unit The fuser unit is faulty. Replace the fuser unit. Detaching and reattaching the Fuser Unit 4 Replacing the fuser drive unit The fuser drive unit is faulty. Replace the fuser drive unit. Detaching and reattaching the Fuser Drive Unit 5 Replacing the fuser motor The fuser motor is faulty. Replace the fuser motor. Detaching and reattaching the Fuser Drive Unit 6 Replacing the feed drive PWB The feed drive PWB is faulty. Replace the feed drive PWB. 7 Firmware upgrade The firmware is not the latest version. Upgrade the engine firmware to the latest version Firmware Update 8 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB

• Code: C2500
• Description: Feed motor error The ready signal is not at the L level after passing 2s since the feed motor drive was started.
• Remedy: 1 Checking the feed motor The operation of the feed motor is faulty. Execute U030 [Feed] to check the feed motor operation. Check if the drive gears rotate and have no excessive load, and apply the grease (EM-LP, Part no: 7BG010009H) to the sliding section and repair the related parts so that they can rotate smoothly. Maintenanc e Mode List 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. . Feed motor - Feed drive PWB . Feed drive PWB - Engine PWB Section 8 "PWBs" 3 Replacing the feed motor The feed motor is faulty. Replace the feed motor. 4 Replacing the feed drive unit The feed drive unit is faulty. Replace feed drive unit. Detaching and reattaching the Feed Drive Unit 5 Replacing the feed drive PWB The feed drive PWB is faulty. Replace the feed drive PWB. 6 Firmware upgrade The firmware is faulty. Upgrade the engine firmware to the latest version Firmware Update 7 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB 8 Replacing the feed image PWB The power cantbesuppliedtothefeeddrive PWB.' Replace the feed image PWB.

• Code: C2600
• Description: PF feed motor error The ready signal is not at the L level (stable rotation) after passing 1s since the PF feed motor drive started.
• Remedy: 1 Checking the PF feed motor The PF feed motor is not properly connected, or it is faulty. Execute U247 [2PF] or [LCF] > [Motor On] to check the paper feed operation. If the PF feed motor does not operate properly, reconnect the connector of the motor. Check if the PF feed roller and the drive gears rotate smoothly and have no excessive load, apply the grease (EM- 50LP, Part no.: 7BG010009H) to the sliding section and repair the related parts so that they can rotate smoothly. Maintenanc e Mode List 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. . PF feed motor - PF PWB . PF PWB - Engine PWB (Drawer connector between the paper feeder and the main unit) Section 8 "PWBs" 3 Replacing the PF feed motor The PF feed motor is faulty. Replace the PF feed motor. Detaching and reattaching the PF Drive Unit 4 Firmware upgrade The engine firmware or the PF firmware is faulty. Upgrade the engine firmware and the PF firmware to the latest version. Firmware Update 5 Replacing the PF PWB The PF PWB is faulty. Replace the PF PWB. Detaching and reattaching the PF PWB 6 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB

• Code: C2700
• Description: Primary / secondary transfer release error The belt release motor was pressed or drove to the releasing direction, and releasing or pressing condition continued for 2.3s
• Remedy: 1 Checking the drive parts The drive transmission of the belt release motor is faulty. Execute U030 [Belt Lift]. If the motor drive is not transmitted, repair the drive transmission parts. Maintenanc e Mode List 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. . Belt release motor - Feed image PWB . Belt release sensor - Feed image PWB . Feed image PWB - Engine PWB . Feed image PWB - Low voltage PWB Section 8 "PWBs" 3 Checking the belt release sensor The belt release sensor comes off. Reattach or replace the belt release sensor. 4 Checking the belt release motor The belt release motor is not operated correctly. Reattach or replace the belt release motor. 5 Primary transfer unit replacement The primary transfer roller liftup drive section is faulty. Replace the primary transfer unit. Detaching and reattaching the Primary Transfer Unit 6 Replacing the feed image PWB The feed image PWB is faulty. Replace the feed image PWB. 7 Firmware upgrade The engine firmware is faulty. Upgrade the engine firmware to the latest version Firmware Update 8 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB 9 Replacing the low voltage PWB The power is not supplied from the low voltage PWB to the belt release motor. If the power is not supplied from the low voltage PWB, replace the low voltage PWB. Detaching and reattaching the Low Voltage PWB

• Code: C2760
• Description: Developer K/Transfer belt motor startup error 1. FG pulse of the motor does not enter for 2s continuously during driving the motor. 2. FG pulse exceeding 4000rpm was detected 10 times continuously. 3. The condition where the target speed +/-6.25% of the motor deviated continued for 2s.
• Remedy: 1 Primary transfer unit replacement The transfer belt is faulty. Replace the primary transfer unit. Detaching and reattaching the Primary Transfer Unit 2 Checking the developer K/ transfer belt motor drive transmission section The drive transmission of the developer K/transfer belt motor is faulty. Execute U030 [DLP(K)] to check the excessive load is not applied to the drive gears, roller and the belt by rotating them. After that, clean the drive section of the primary transfer unit. Maintenanc e Mode List 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. . Developer K/Transfer belt motor - Feed image PWB . Feed image PWB - Engine PWB Section 8 "PWBs" 4 Checking the developer K/ transfer belt motor The developer K/transfer belt motor is faulty. Reattach the developer K/ transfer belt motor and reconnect the connector. If not repaired, replace it. 5 Firmware upgrade The firmware is faulty. Upgrade the engine firmware to the latest version Firmware Update 6 Replacing the feed image PWB The feed image PWB is faulty. Replace the feed image PWB. 7 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB

• Code: C2810
• Description: Waste toner motor error 1. The lock detection signal shows L level during driving the waste toner motor. (0.5s x 3 times retry continuously with 2ms cycle) 2. Low level of the lock detection signal can not detect within 50ms from the switching REM signal L to H. (3 times retry with 50ms cycle)
• Remedy: 1 Checking the waste toner box The waste toner box is not properly installed. Reinstall the waste toner box. Replacing the Waste Toner Box (Operation Guide - Section 10) 2 Checking the waste toner motor The waste toner motor does not operate properly. Execute U030 [Toner Recovery] to check whether the waste toner motor operation has an excessive load or not. Then, repair it if necessary. Maintenanc e Mode List 3 Checking the drive gear The drive gear does not rotate properly. Check if the excessive load is not applied to the drive gears by rotating the gears, and clean the drive gears and the bushing, etc. 4 Replacing the waste toner box The waste toner box is faulty. Replace the waste toner box. Replacing the Waste Toner Box (Operation Guide - Section 10) 5 Checking the waste toner motor The waste toner motor is not properly connected. Reinsert the connector into the waste toner motor. 6 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. . Waste toner motor - Engine PWB Section 8 "PWBs" 7 Firmware upgrade The engine firmware is faulty. Upgrade the engine firmware to the latest version Firmware Update 8 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB

• Code: C2840
• Description: Belt cleaning motor error 1. FG pulse of the motor does not enter for 2s continuously during driving the motor. 2. FG pulse exceeding 4000rpm was detected 10 times continuously. 3. The condition where the target speed +/-6.25% of the motor deviated continued for 2s.
• Remedy: 1 Checking the primary transfer unit The primary transfer unit is not properly installed. Reinstall the primary transfer unit. Detaching and reattaching the Primary Transfer Unit 2 Cleaning the primary transfer cleaning section The roller in the primary transfer cleaning section does not rotate properly. Remove the waste toner remaining in the primary transfer cleaning section. 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. . Belt cleaning motor - Transfer PWB . Transfer PWB - Transfer connect PWB . Transfer connect PWB - Feed image PWB . Feed image PWB - Feed drive PWB . Feed image PWB - Engine PWB Section 8 "PWBs" 4 Checking the belt cleaning motor The belt cleaning motor does not operate properly. Reattach the belt cleaning motor. If not repaired, replace it. 5 Primary transfer unit replacement The cleaning drive section of the primary transfer unit is faulty. Transfer PWB or transfer connection PWB is faulty. Replace the primary transfer unit. Detaching and reattaching the Primary Transfer Unit 6 Replacing the feed image PWB The feed image PWB is faulty. Replace the feed image PWB. 7 Firmware upgrade The engine firmware is faulty. Upgrade the engine firmware to the latest version Firmware Update 8 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching and reattaching the Engine PWB 8 Replacing the feed drive PWB The feed drive PWB is faulty. Replace the feed drive PWB.