Feed Jam (Error Code 380); Jam Occurs Immediately After The Power Is Turned On - Oki C310dn Maintenance Manual

Oki Data CONFIDENTIAL
Check item
(3-2-4) Check the system connection
Paper feed motor Check the connection condition of the cable.
drive cable Check if the connector is connected in the half-
way only or not, and check if the connector
is inserted in a slanted angle or not. Check
also that cables are assembled without any
abnormality.
Paper feed motor Check that any cable is not pinched during
drive cable assembling of the printer.
Pull out the CU/PU board HOPSIZE connector
1, and check the following at the side of the
connector.
Short circuit between pin-1 – FG
Short circuit between pin-2 – FG
Short circuit between pin-3 – FG
Short circuit between pin-4 – FG
Paper feed motor Remove the HOPSIZE connector
PU board and check that approx. 3.4 can be
measured between pin-1 -pin-2 at the cable end,
and that approx. 5 can be measured between
pin-3 -pin-4 respectively.
(3-2-5) Solenoid operation check
Feed clutch Confirm that the paper feed solenoid works
normally by using the Motor & Clutch Test of the
self-diagnostic mode.
Pull out the cassette for the rollers to be seen,
and check operation.
(3-2-6) Check the system connection
Feed clutch cord Check the connection condition of the cable.
Check if the connector is connected in the half-
way only or not, and check if the connector
is inserted in a slanted angle or not. Check
also that cables are assembled without any
abnormality.
Cord for feed clutch Check that any cable is not pinched during
assembling of the printer.
Pull out the CU/PU board HOC connector
14, and check the following at the side of the
cord.
44346001TH Rev.1
Check operation Actions for NG
results
Replace the
cable with the
good cable
that normalizes
the connection
condition.
Replace the
cable with the
good cable
that normalizes
the connection
condition.
of the Replace the
paper feed motor.
Replace the
CU/PU board
or the feed
solenoid.
Replace the
cable with the
good cable
that normalizes
the connection
condition.
Replace the
clutch and
properly
assemble
appropriate
parts.

7.5.2. (4) Feed jam (error code 380)

(4-1) Jam occurs immediately after the power is turned on.

Check item
(4-1-1) Check condition of the paper running path
Paper running path Open the front cover check if paper is not
of the front unit jammed in the paper running path.
(4-1-2) Check condition of the mechanical parts
Hopping sensor, Check the sensor lever shapes and operations
IN sensor and WR for any problem.
sensor lever check
(4-1-3) Check condition of electrical parts
Check the detection Confirm that the sensor signals are normally
condition of the detected by using the Maintenance Menu
sensor signal. SWITCH SCAN function.
Hopping sensor, Check the following signals by using the CU/
IN sensor and WR PU board HPSNS and RGSNS connector 16:
sensor output level HPSNS pin 2: Hopping sensor
check RGSNS pin 5: IN sensor
RGSNS pin 2: WR sensor
Confirm that the above signal levels change
when the sensor lever is operated.
7. TROUBLESHOOTING
Check operation Actions for NG
results
Remove the
jammed paper.
Replace the
sensor lever(s)
with proper
one(s).
Replace the
CU/PU board
or appropriate
connection
cords.
Replace the
appropriate
sensor(s).
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