Description: ATR Sensor (C) output error. The output value of the ATR Sensor (C) in the Developing Unit (C) did not fall within the range between 38 and 214 for 2 consecutive times during printing.
Remedy: [Related parts] • Harnesses from the ATR Sensor (C) to the DC Controller PCB 1. ATR Sensor (C) (UN23/J1052) to Developing Unit (C) (J1042) (Unit of replacement: CABLE, DEVELOPING) 2. Developing Unit (C) (J1042) to Relay Connector (4P) (Unit of replacement: CABLE, RELAY) 3. Relay Connector (4P) to DC Controller PCB (UN04/J128) (Unit of replacement: CABLE, SENSOR) • Developing Unit (C) (Unit of replacement: DEVELOPING ASSEMBLY, C) • DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. • Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP • Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES