Kyocera FS-6020 - The Message Self Test Remains When the Printer Is Started

FS-6020
1-5-18
Problem Causes Check procedures/corrective measures
(4)
The message
“Face-down tray
paper full”
remains.
(5)
The paper size is
not recognized as
the size set with the
paper size dial of
the cassette.
(6)
The message “Self
test” remains
when the printer is
started.
(7)
No message is
displayed when the
power switch is
turned on. (All dots
of LCD are on.)
(8)
No message is
displayed when the
power switch is
turned on. (All dots
of LCD are off.)
Defective face-down tray
paper full sensor.
Defective engine/high
voltage PWB.
Defective cassette size
switch.
Defective connection
between the cassette size
switch and the engine/high
voltage PWB.
Defective engine/high
voltage PWB.
Defective main PWB.
Defective main PWB.
Defective code ROM PWB
on the main PWB.
Defective operation panel
PWB.
Defective power cord
connection.
Defective power cord.
Defective power source
PWB.
Defective main PWB.
Defective operation panel
PWB.
Defective connection
between the main PWB
and the engine/high
voltage PWB.
Short circuit of electric
wiring occurs in any
electric part and the
overcurrent detection
function of the power
source PWB stops output
of 5 V DC and 24 V DC
power supply.
If the level at pin No. 2 of the YC13 connector on the engine/
high voltage PWB remains low when the actuator of the face-
down tray paper full sensor is not operating, replace the face-
down tray paper full sensor.
Replace the engine/high voltage PWB. (See page 1-6-26.)
Check to see if the level at pin Nos. 1 (CAS2), 2 (CAS1), and 4
(CAS0) of the YC7 connector on the engine/high voltage PWB
changes to H or L when each cassette size switch is pressed. If
any problem is found, replace the cassette size switch.
Check to see if the harness (S02821) between the cassette size
switch and the engine/high voltage PWB is damaged or if the
connector YC7 on the engine/high voltage PWB is improperly
connected. If any problem is found, repair or replace the relevant
component.
Replace the engine/high voltage PWB. (See page 1-6-26.)
Replace the main PWB. (See page 1-6-25.)
Replace the main PWB. (See page 1-6-25.)
Replace the code ROM PWB.
Replace the operation panel PWB.
Check to see if the power cord is securely connected to the
outlet and the printer AC inlet.
Replace the power cord.
Replace the power source PWB. (See page 1-6-29.)
Replace the main PWB. (See page 1-6-25.)
Replace the operation panel PWB.
Check to see if the harness (S02833) between the main PWB
and the engine/high voltage PWB is damaged or if the connector
YC7 on the main PWB is improperly connected. If any problem
is found, repair the relevant component.
Check to see if any electric part or wiring is damaged. If any
problem is found, repair or replace the relevant component.