• Code: C020
• Description: Developer drive motor abnormality: Thedeveloper drive motor is not rotating normally.
• Causes: Developer unit Feeding/developing drive unit Paper feeding/developer unit drive motor Drum TBU drive unit LGC board 1st/2nd drawer feed roller Bypass unit Paper feeding drive section Transport roller
• Remedy: Developer unit • Check if the developer material is caked. • Check if there is any abnormality in the row of gears on the rear side of the developer unit. • Check if the amount of developer material is proper. Development drive unit/Paper feeding drive unit • Check if there is any foreign matter between the gears. • Check if there is any damage on the gear tooth surface. • Check if there is any scratch on the caliber or the shaft of each gear. • Check if the proper amount of grease is applied to the caliber or the shaft of each gear. • Check if there is any damage to the developer drive output coupling. Paper feeding/developer unit drive motor • Check that the motor is rotated normally. (03-112) • Connector check • Harness check Drum TBU drive unit • Check if there is any foreign matter in the row of the color developer drive gears. • Check if there is any damage on the tooth surface of the color developer drive gears. • Check if there is any scratch on the caliber or the shaft of each color developer drive gear. • Check if the proper amount of grease is applied to the caliber or the shaft of each color developer drive gear. • Check if there is any damage to the developer drive output coupling. LGC board • Board check • Connector check (CN391, CN392) • Harness check 1st/2nd drawer feed roller • Check if the 1st drawer feed roller is overloaded. • Check if there is any damage to the roller coupling. Bypass unit • Check if the bypass feed roller is overloaded. • Check if there is any damage to the row of the bypass unit gears. Paper feeding drive section • Check if there is any foreign matter between the gears. • Check if there is any damage on the gear tooth surface. • Check if there is any scratch on the caliber or the shaft of each gear. Transport roller • Check if the PFU transport roller is overloaded.

• Code: C040
• Description: PFP motor abnormality: The PFP motor is not rotating normally. (the case that paper can be fed from any drawer except the PFP)
• Causes: PFP motor PFP board LGC board
• Remedy: 1 Is the PFP motor working? (Perform the output check: 03-109/159) Yes 2 No • Check if the connector J952 of the PFP motor is disconnected. • Check if the connector CN245 on the PFP board is disconnected. • Check if the connector CN241 on the PFP board is • Check if the connector CN371 on the LGC board is disconnected. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the PFP motor board, PFP board and LGC board are short circuited or open circuited. 2 Is the LED on the PFP motor board lit without flashing? Yes 3 No • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the PFP motor board, PFP board and LGC board are short circuited or open circuited. 3 PFP board • Check if the PLL lock signal CN945-7 pin output from the PFP board is always “L” level. • Check if the voltage supplied to the microcomputer input terminal IC5-17 pin is always “L” level.

• Code: C130
• Description: 1st drawer tray abnormality: The tray-up motor is not rotating or the 1st drawer tray is not moving normally. (the case that paper can be fed from any drawer except the 1st drawer)
• Causes: Tray-up motor DRV board LGC board Tray-up sensor
• Remedy: 1 Does the tray go up? (Perform the output check: 03-242, 243) Yes 2 No • Check if the connector of the tray-up motor is disconnected (J1079, CN457). • Check if the connector on the DRV board is disconnected. (CN450, CN451, CN457) • Check if the connector on the LGC board is disconnected (CN361, CN362). • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor pattern on the LGC board is short circuited or open circuited. 2 Is the tray-up sensor working? (Perform the input check: 03-[ALL]OFF/ [0]/[E], 03-[FAX]ON/[4]/[E] Yes 3 No • Check if the connector of the sensor is disconnected (CN460, J1088, J1094, J1097, J1103). • Check if the connector on the DRV board is disconnected. (CN450, CN451, CN460) • Check if the connector on the LGC board is disconnected (CN361, CN362). • Check if the slit reaches the sensor. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor pattern on the LGC board is short circuited or open circuited. 3 DRV board • Check if the conductor pattern on the DRV board is short circuited or open circuited. 4 LGC board • Check if the conductor pattern on the LGC board is short circuited or open circuited.

• Code: C140
• Description: 2nd drawer tray abnormality: The tray-up motor is not rotating or the 2nd drawer tray is not moving normally. (the case that paper can be fed from any drawer except the 2nd drawer)
• Causes: Tray-up motor DRV board LGC board Tray-up sensor
• Remedy: 1 Does the tray go up? (Perform the output check: 03-242, 243) Yes 2 No • Check if the connector of the tray-up motor is disconnected (J1079, CN457). • Check if the connector on the DRV board is disconnected. (CN450, CN451, CN457) • Check if the connector on the LGC board is disconnected (CN361, CN362). • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor pattern on the LGC board is short circuited or open circuited. 2 Is the tray-up sensor working? (Perform the input check: 03-[ALL]OFF/ [0]/[E], 03-[FAX]ON/[4]/[E] Yes 3 No • Check if the connector of the sensor is disconnected (CN460, J1088, J1094, J1097, J1103). • Check if the connector on the DRV board is disconnected. (CN450, CN451, CN460) • Check if the connector on the LGC board is disconnected (CN361, CN362). • Check if the slit reaches the sensor. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor pattern on the LGC board is short circuited or open circuited. 3 DRV board • Check if the conductor pattern on the DRV board is short circuited or open circuited. 4 LGC board • Check if the conductor pattern on the LGC board is short circuited or open circuited.

• Code: C150
• Description: PFP upper drawer tray abnormality: The PFP upper drawer tray-up motor is not rotating or the PFP upper drawer tray is not moving normally. (the case that paper can be fed from any drawer except the PFP upper drawer)
• Causes: Tray-up motor PFP board LGC board Tray-up sensor
• Remedy: 1 Does the tray go up? (Perform the output check: 03-278, 280) Yes 2 No • Check if the connector of the tray-up motor is disconnected. (CN5, CN50) • Check if any of the connectors CN241, CN242 and CN244 on the PFP board is disconnected. • Check if the connector CN371 on the LGC board is disconnected. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the PFP board and LGC board are short circuited or open circuited. 2 Is the tray-up sensor working? (Perform the input check: 03- [COPY]ON/[5]/[A], 03- [COPY]ON/[5]/[E] Yes 3 No • Check if the connector of the sensor is disconnected. • Check if any of the connectors CN241, CN244 and CN246 on the PFP board is disconnected. • Check if the connector CN371 on the LGC board is disconnected. • Check if the slit reaches the sensor. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the PFP board and LGC board are short circuited or open circuited. 3 LGC board • Check if the conductor pattern on the LGC

• Code: C160
• Description: PFP lower drawer tray abnormality: The PFP lower drawer tray-up motor is not rotating or the PFP lower drawer tray is not moving normally. (the case that paper can be fed from any drawer except the PFP lower drawer)
• Causes: Tray-up motor PFP board LGC board Tray-up sensor
• Remedy: 1 Does the tray go up? (Perform the output check: 03-278, 280) Yes 2 No • Check if the connector of the tray-up motor is disconnected. (CN5, CN50) • Check if any of the connectors CN241, CN242 and CN244 on the PFP board is disconnected. • Check if the connector CN371 on the LGC board is disconnected. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the PFP board and LGC board are short circuited or open circuited. 2 Is the tray-up sensor working? (Perform the input check: 03- [COPY]ON/[5]/[A], 03- [COPY]ON/[5]/[E] Yes 3 No • Check if the connector of the sensor is disconnected. • Check if any of the connectors CN241, CN244 and CN246 on the PFP board is disconnected. • Check if the connector CN371 on the LGC board is disconnected. • Check if the slit reaches the sensor. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the PFP board and LGC board are short circuited or open circuited. 3 LGC board • Check if the conductor pattern on the LGC

• Code: C180
• Description: LCF tray-up motor abnormality: The LCF tray- up motor is not rotating or the LCF tray is not moving normally. (the case that paper can be fed from any drawer except the LCF)
• Causes: LCF tray-up motor LCF board LGC board LCF tray-up sensor LCF tray bottom sensor
• Remedy: 1 Does the tray move? (Perform the output check: 03-271) Yes 2 No • Check if the connector of the LCF tray-up motor is disconnected. (CN5, CN50) • Check if any of the connectors CN100, CN101 and CN103 on the LCF board is disconnected. • Check if the connector CN371 on the LGC board is disconnected. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the LCF board and LGC board are short circuited or open circuited. 2 Are the LCF tray-up sensor and LCF tray bottom sensor working? (Perform the input check: 03-[COPY]ON/[8]/[A], 03-[COPY]ON/[8]/[E]) Yes 3 No • Check if the connectors of the sensors are disconnected. (CN6, CN63, CN64) • Check if any of the connectors CN100, CN104 and CN105 on the LCF board is disconnected. • Check if the connector CN371 on the LGC board is disconnected. • Check if the slit reaches the sensors. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the LCF board and LGC board are short circuited or open circuited. 3 LGC board • Check if the conductor pattern on the LGC board is short circuited or open circuited.

• Code: C1A0
• Description: LCF end fence motor abnormality: The LCF end fence motor is not rotating or the LCF end fence is not moving normally. (the case that paper can be fed from any drawer except the LCF)
• Causes: LCF end fence motor LCF board LGC board LCF end fence home position sensor LCF end fence stop position sensor
• Remedy: 1 Is the LCF end fence motor working? (Perform the output check: 03-207) Yes 2 No • Check if the connector of the LCF end fence motor is disconnected. (CN5, CN51) • Check if any of the connectors CN100, CN101 and CN103 on the LCF board is disconnected. • Check if the connector CN371 on the LGC board is disconnected. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the LCF board and LGC board are short circuited or open circuited. 2 Are the LCF end fence home/stop position sensors working? (Perform the input check: 03-[COPY]ON/[8]/[H], 03- [COPY]ON/[8]/[G]) Yes 3 No • Check if the connectors of the sensors are disconnected. (CN4, CN40, CN400, CN403) • Check if either of the connectors CN100 or CN107 on the LCF board is disconnected. • Check if the connector CN371 on the LGC board is disconnected. • Check if the slit reaches the sensors. • Check if the connector pins are disconnected or the harnesses are open circuited. • Check if the conductor patterns on the LCF board and LGC board are short circuited or open circuited. 3 LGC board • Check if the conductor pattern on the LGC board is short circuited or open circuited.