2RV/2RW/2RX/2RY/3RA-3
7-116
7-7 Malfunction
Content of Malfunction
(1) The main unit does not operate at all even if the power switch is turned on
(2) Toner drops over the paper conveying section.
(Final phenomenon: Toner adheres on the paper leading edge)
No. Contents Condition
(1) The main unit does not operate at all even if the
power switch is turned on
(2) Toner drops over the paper conveying section. (Final phenomenon: Toner adheres on the paper
leading edge)
(3) The login fails with other than the ID card
Step Check description Assumed cause Measures Reference
1 Measuring the input volt-
age
The power cord has no
continuity.
Plug the power cord into
another wall outlet.
2 Checking the power cord The power cord is faulty. Check the continuity in the
power cord, and replace the
power cord if there is no con-
tinuity.
3 Checking the power switch The power switch is faulty. Check the continuity between
the contacts of the power
switch. Then, replace the
power switch if there is no
continuity.
4 Checking the connection The connector is not prop-
erly connected or the wire
is faulty.
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire.
• Low voltage PWB (YC103) -
Main/engine PWB (YC20)
5 Replacing the low voltage
PWB.
The low voltage PWB is
faulty.
Replace the low voltage
PWB.
6 Replacing the main/engine
PWB
The main/engine PWB is
faulty.
Replace the main/engine
PWB.
Step Check description Assumed cause Measures Reference
1 Cleaning the developer
unit and drum unit
The developer unit or drum
unit is dirty.
Clean the developer unit and
drum unit.
2 Replacing the developer
unit
The toner is deteriorated. Replace the developer unit.