Chapter 44-12NO : Repair the wiring.Tray up/down mechanism4) Is there any abnormality in the tray up/down mechanism?YES : Repair the tray up/down mechanism.Tray 1 shift motor (M107)/Finisher controller PCB5) Does it improve when the tray 1 shift motor is replaced?YES : EndNO : Replace the finisher controller PCB.4.4.1.10 E542;Tray 2 shift motor error 0009-2597Tray 2 paper surface sensor 1 (PI115)/Tray 2 paper surface sensor 2 (PI120)1) Check the tray 2 paper surface sensor 1 and the tray 2 paper surface sensor 2. Does it operate normally?NO : Replace the sensor.Tray 2 shift area sensor PCB2) Check the tray 2 shift area sensors 1 to 3. Do the sensors operate normally?NO : Replace the tray 2 shift area sensor PCBWiring3) Is the wiring between the finisher controller PCB and tray 2 shift motor nor-mal?NO : Repair the wiring.Tray up/down mechanism4) Is there any abnormality in the tray up/down mechanism?YES : Repair the tray up/down mechanism.Tray 2 shift motor (M108)/Finisher controller PCB5) Does it improve when the tray 2 shift motor is replaced?YES : EndNO : Replace the finisher controller PCB.4.4.1.11 E584;Shutter malfunction 0009-2598Shutter home position sensor (PI113)1) Check the shutter home position sensor. Does the sensor operate normally?NO : Replace the sensor.Wiring2) Is the wiring between the finisher controller PCB and stack ejection motor, and between the finisher controllerPCB and shutter clutch normal?NO : Repair the wiring.Shutter mechanism3) Is there any abnormality in the shutter mechanism?YES : Repair the shutter mechanism.Stack ejection motor (M102)/Shutter clutch (CL101)/Stack ejection lower roller clutch (CL102)/Finisher controllerPCB4) Does it improve when the stack ejection motor, the shutter clutch and the stack ejection lower cluch are replaced?YES : End