• Code: C0301
• Description: Suction fan’s failure to turn The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
• Causes: • Suction fan (FM1) • Paper feed/transport drive board (PFTDB)
• Remedy: 1 Check the connector between FM1-relay CN278-relay CN271B-PFTDB CN10 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM1 operation check PFTDB CN10-3 (REM) PFTDB CN10-5 (LOCK) 5-P 4 Replace FM1 5 PFTDB ICP2 conduction check 6 Replace PFTDB

• Code: C0351
• Description: Paper cooling fan/in’s failure to turn The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
• Causes: • Paper cooling fan/in (FM13) • Printer control board (PRCB)
• Remedy: 1 Check the connector between FM13-relay CN325- PRCB CN1 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM13 operation check PRCB CN1-11 (LOCK) 7-K 4 Replace FM13 5 Replace PRCB

• Code: C1003
• Description: PK communication error <When FS-535+PK-521 is installed> When a communication error is detected between the FS control board (FSCB) and the punch control board (PKCB).
• Causes: • Punch control board (PKCB) • FS control board (FSCB)
• Remedy: 1 Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord, and turn ON the main power switch. 2 Rewrite the firmware. 3 Replace PKCB 4 Replace FSCB

• Code: C1004
• Description: FNS communication error When the FS control board (FSCB) is receiving data, a communication error is detected.
• Causes: FS control board (FSCB)
• Remedy: 1 Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord, and turn ON the main power switch. 2 Rewrite the firmware. 3 Replace FSCB (FS-534/FS-535)

• Code: C1005
• Description: ZU communication error. When the ZU control board (ZUCB) is receiving data, a communication error is detected.
• Causes: ZU control board (ZUCB)
• Remedy: 1 Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord, and turn ON the main power switch. 2 Rewrite the firmware. 3 Replace ZUCB

• Code: C1080
• Description: RU communication error When the RU control board (RUCB) is receiving data, a communication error is detected.
• Causes: RU control board (RUCB)
• Remedy: 1 Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord, and turn ON the main power switch. 2 Rewrite the firmware. 3 Replace RUCB

• Code: C1081
• Description: SD communication error When a communication error is detected between the FS control board (FSCB) and the SD drive board (SDDB).
• Causes: • SD drive board (SDDB) • FS control board (FSCB)
• Remedy: 1 Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord, and turn ON the main power switch. 2 Rewrite the firmware. 3 Replace SDDB (SD-511/SD-512) 4 Replace FSCB. (FS-534/FS-535)

• Code: C1102
• Description: Main tray up/down motor’s drive malfunction <When FS-534 is installed> • While the exit tray is being lifted, the main tray upper position sensor (PS26/PS27) is not blocked and the main tray upper position detect switch (SW2) is not turned ON, even after the main tray up/down motor (M11) turns by the set number of times. • While the exit tray is being lowered, the main tray full detection sensor (PS29) is not blocked after the set period of time has elapsed after the main tray up/down motor (M11) is turned ON. <When FS-535 is installed> • The main tray upper limit sensor (PS44/PS45) is turned ON even after the set period of time has elapsed while the main tray up/down motor (M5) is energized. • The staple paper exit top surface sensor (PS7) is unblocked even after the set period of time has elapsed while the main tray up/down motor (M5) is energized.
• Causes: <When FS-534 is installed> • Main tray up/down motor (M11) • Main tray upper position sensor/R (PS26) • Main tray upper position sensor/F (PS27) • Main tray full detection sensor (PS29) • Main tray upper position detect switch (SW2) • FS control board (FSCB) <When FS-535 is installed> • Main tray up/down motor (M5) • Main tray upper limit sensor/in (PS44) • Main tray upper limit sensor/out (PS45) • Staple paper exit top surface sensor (PS7) • FS control board (FSCB)
• Remedy: When FS-534 is installed: 1 Check the motor and sensor connectors for proper connection, and correct as necessary. 2 Check the connector of M11 for proper drive coupling, and correct as necessary. 3 PS26 I/O check, sensor check FSCB J14<A>-5 (ON) FS-534 2-C 4 PS27 I/O check, sensor check FSCB J14<B>-8 (ON) FS-534 3-C 5 PS29 I/O check, sensor check FSCB J14<A>-8 (ON) FS-534 4-C 6 SW2 operation check FSCB J10-1 to 2 FS-534 8-K 7 M11 operation check FSCB J9<A>-9 to 10 FS-534 10-C to D 8 Replace M11 9 Replace FSCB. When FS-535 is installed: 1 Check the motor and sensor connectors for proper connection, and correct as necessary. 2 Check the connector of M5 for proper drive coupling, and correct as necessary. 3 PS44 I/O check, sensor check FSCB CN24-2 (ON) FS-535 8-L 4 PS45 I/O check, sensor check FSCB CN18-1 to 3 FS-535 13-D 5 PS7 I/O check, sensor check FSCB CN23-15 (ON) FS-535 13-L 6 M5 operation check FSCB CN22-1 to 11 FS-535 5-L 7 Replace M5 8 FSCB ICP1 conduction check 9 Replace FSCB