Oki C910 Troubleshooting Manual page 28

Display Cause
Service Call RFID Reader I/
231: Error F Error
Service Call Engine Program
240: Error Memory Error
to
245: Error
247: Error
248: Error
Close the Cover The printer
310: Top Cover engine cover is
Open open.
Reset fuser After turning ON
320: Fuser the power or when
Error cover is closed, the
sensor detects that
the unit is missing.
Turn OFF the This indicates that
power and the motor has
wait for overheated and
awhile. that the printer is
321: MOTOR temporarily
OVERHEAT unusable.
Open Cover When media is
323: Paper missing, the
Thickness sensor output
Error value is outside
the standard
value. (Only for
Factory Mode)
Open Cover Sensor Output
324: Paper Difference Value
Thickness Outside Standard
Error (Only for Factory
Mode)
Open Cover Media Detection
325: Paper Value Outside
Thickness Standard
Error
Open Cover U-Heavy Mode
326: Paper Media Detection
Thickness Value Outside
Error Standard
Table 7-1-1 Operator Alarm (6/10)
Error Description and Analysis
An interface error was detected
with the RFID reader device.
01: communication error between
the RFID reader and the engine
PCB.
02: the transceiver circuit error of
the RFID reader.
03: communication error between
the RFID reader and the Tag chip.
04: the RFID Tag detection error
(more than 4 chips).
240: Flash-memory hardware error
241: Duplex flash-memory error
242: Optional tray-2 flash-memory
error
243: Optional tray-3 flash-memory
error
244: Optional tray-4 flash-memory
error
245: Optional tray-5 flash-memory
error
247: Sub-CPU flash-memory error
248: Inverter flash-memory
error
1) Check to see if the top cover
is open.
2) Check to see if the cover
switch is normal.
1) Is an Error message displayed?
2) Is the fuser unit mounted
properly?
3) Does the Error take place
again?
1) Has any abnormal substance
get mixed in with the sensor?
2) Can the paper thickness
detection be reset and
restored by opening/closing
the tray?
3) Is operation restored by
turning OFF/ON the power?
1) Has any abnormal substance
get mixed in with the sensor?
2) Can the paper thickness
detection be reset and
restored by opening/closing
the tray?
3) Is operation restored by
turning OFF/ON the power?
1) Is there any abnormal media
mixed in?
2) Has the media been fed as
overlapped sheets?
Is there any abnormal media
mixed in?
Troubleshooting Guide Page 28
Remedy
judgment
01: Same action as for error 230
02: Replace the RFID R/W
board.
03: Check the connection of the
antenna cable.
04: Check to confirm that the
number of RFID tags is
correct.
If the error still occurs after
rebooting, replace the circuit
board of the relevant unit.
Close top cover
Yes
Replace the cover switch.
No
Yes Check how the fuser is
No mounted.
Re-mount the fuser, then turn
Yes ON the power again.
Replace the Fuser Unit Assy
Wait a while then turn ON
power again.
Yes Remove obstruction/impurity.
No Normal
Yes Remove obstruction/impurity.
No Normal
Yes Remove the abnormal media.
Yes Remove the abnormal media.
600 1200
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓