2RV/2RW/2RX/2RY/3RA-3
7-59
4 Checking the paper Paper is wavy with mois-
ture or curled.
Correct or replace paper. If
difficult to replace, re-load
paper by switching top and
bottom ends or turning it over.
5 Checking the DU convey-
ing roller and DU convey-
ing pulley
The conveying perfor-
mance is lowered or slip-
page occurs (rotation not
smooth).
Clean the DU conveying
roller A,B and DU conveying
pulley A,B on their surface. If
worn don, replace them. If the
press spring is deformed,
correct and reattach it. If not
repaired, replace it.
6 Checking the driving parts The main motor drive is
not properly transmitted.
Check if the DU conveying
roller A, B smoothly rotate
manually, clean the drive
parts and reattach them if
necessary. If not repaired,
replace them.
7 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.
ā¢ Registration sensor (on the
high voltage PWB) - Main/
engine PWB (YC16)
ā¢ Main motor - Main/engine
PWB (YC9)
8 Checking the registration
sensor
The registration sensor
does not operate properly.
Clean the registration sensor
and reconnect the connector.
If not repaired, replace the
high voltage PWB (including
the registration sensor).
9 Checking the main motor The main motor does not
operate properly.
Reattach the main motor and
reconnect the connector. If
not repaired, replace it.
10 Replacing the main/engine
PWB
The main/engine PWB is
faulty.
Replace the main/engine
PWB.
Step Check description Assumed cause Measures Reference
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