Self Diagnosis; Delivery - Oce 3121 Technical & Service Manual

12 Self Diagnosis

The microprocessor of the copier's DC controller PCB is equipped with a
mechanism to check the condition of the 3-tray unit (condition of sensors, in
particular). The mechanism runs checks as necessary and indicates a specific
code on the copier's control panel if it finds an error.
Self Diagnosis
Code Cause
E540
Normal delivery of 2 size A4 copies to delivery tray 2
Sequence
Post-fixing sensor
(PS7)
Paper deflecting plate 1
solenoid (SL5)
Paper deflecting plate 2
solenoid (SL6)
Paper deflecting plate 3
solenoid (SL8)
Multitray inlet sensor
(PS19)
Delivery sensor 2
(PS17)
Multitray feeder motor
(M9)
Tray shift motor (M11)
Tray position sensor
(PS16)
ed.1
Malfunctioning of the sensor for
the detection of the home position.
Copy Start key ON
∗ 1:
The feeding motor doubles its speed of rotation when the paper deflecting plate 1
solenoid (SL5) turns OFF.
Description
The home position detection signal
is not received within 5 seconds
after the 'shift tray is home' check
is started.
∗ 1 ∗ 1

19 Delivery 523