Description: Deck left lift of the paper feeder PF- 75 position problem • Deck level switch 1 does not turn on within 30 s of paper deck motor 1 turning on.
Causes: Defective deck level switch 1. Poor contact of deck level switch 1 connector terminals. Defective paper deck motor 1. Poor contact of paper deck motor 1 connector terminals. The deck left lift does not rise properly.
Remedy: Check if CN5-7 on the desk main board goes low when desk level switch 1 is turned off. If not, replace desk level switch 1. Reinsert the connector. Also check for continuity within the connector cable. If none, repair or replace the cable. Check for continuity across the coil. If none, replace paper desk motor 1. Reinsert the connector. Also check for continuity within the connector cable. If none, repair or replace the cable. Check the gears and belts, and remedy if necessary.
Code: 2000
Description: Drive motor problem • LOCK ALM signal remains high for 1 s, 1 s after the drive motor has turned on.t
Causes: Poor contact in the drive motor connector terminals. Defective drive motor rotation control circuit. Defective drive transmission system. Defective engine controller PWB.
Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the drive motor. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any. Replace the engine controller PWB.
Code: 2500
Description: Paper feed motor problem • LOCK ALM signal remains high for 1 s, 1 s after the paper feed motor has turned on.
Causes: Poor contact in the paper feed motor connector terminals. Defective paper feed motor rotation control circuit. Defective drive transmission system. Defective engine controller PWB.
Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the paper feed motor. Check if the rollers and gears rotate smoothly. If not, grease the bushings and gears. Check for broken gears and replace if any. Replace the engine controller PWB.
Code: 2600
Description: Deck conveying motor of the paper feeder PF-75/desk drive motor of the paper feeder PF-75 problem • No pulse is input within 500 ms of the start-up. • No pulse is input within 100 ms of the previous pulse input.
Causes: Defective deck conveying motor board/desk drive motor board. Deck conveying motor /desk drive motor does not rotate correctly (the motor is overloaded). Poor contact in the deck conveying motor/desk drive motor connector terminals.
Remedy: Replace the deck conveying motor board/ desk drive motor board and check for correct operation. Check the gears and remedy if necessary. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable.
Code: 4000
Description: Polygon motor synchronization problem • When the polygon motor starts, the motor does not become stable even after 20 s.
Causes: Poor contact in the polygon motor connector terminals. Defective polygon motor. Defective power supply unit. Defective power supply from engine controller PWB. Defective engine controller PWB.
Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the LSU. Check if 24 V DC is supplied to YC2-1 on the engine controller PWB. If not, replace the power supply unit. Check if 24 V DC is output from YC8-10 on the engine controller PWB. If not, replace the engine controller PWB. Replace the engine controller PWB.
Code: 4010
Description: Polygon motor steady-state problem • When high-speed rotation from lowspeed rotation is requested, the motor does not become stable even after 20 s.
Causes: Poor contact in the polygon motor connector terminals. Defective polygon motor. Defective power supply unit. Defective power supply from engine controller PWB. Defective engine controller PWB.
Remedy: Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Replace the LSU. Check if 24 V DC is supplied to YC2-1 on the engine controller PWB. If not, replace the power supply unit. Check if 24 V DC is output from YC8-10 on the engine controller PWB. If not, replace the engine controller PWB. Replace the engine controller PWB.