OKI MC361
Troubleshooting. Paper running jam (error code 381) 1
Jam occurs immediately after the power is turned on.
Check item | Checking method | Action |
---|---|---|
Check condition of the running path. | ||
Paper running path of the front unit | Check if paper is jammed or not in the paper running path. | Remove the jammed paper. |
Check condition of the mechanical parts | ||
Check the sensor lever of the WR sensor. | Check if shape and movement of the sensor levers have any abnormality or not. | Replace the sensor lever with the good sensor lever. |
Check condition of electrical parts | ||
Check the detection condition of the sensor signal | Confirm that the sensor signals are normally detected by using the SWITCH SCAN function of the maintenance menu. | Replace the CU/PU board, or appropriate sensor(s) or connection cord(s). |
Check the sensor lever of the WR sensor. | Check the following signal by using the CU/ PU board RGSNS connector : RGSNS 2pin: WR sensor Confirm that the above signal levels change when the sensor lever is operated. |
Replace the sensor. |
Jam occurs immediately after a paper is taken into printer.
Check item | Checking method | Action |
---|---|---|
Check condition of the paper running path | ||
Paper running path on the belt. | Remove the ID unit and check if paper is jammed or not in the paper running path. | Remove the jammed paper. |
Check condition of the mechanical parts | ||
Check the sensor lever of the WR sensor. | Check if shape and movement of the sensor levers have any abnormality or not. | Replace the sensor lever with the good sensor lever. |
Motor operation check | ||
Paper feed motor driver, belt motor driver and ID motor | Confirm that the paper feed motor, belt motor and ID motor work normally by using the Motor & Clutch Test of the selfdiagnostic mode. Check if any load exists or not. |
Replace the CU/ PU board or the feed motor or the belt motor or the ID motor or the ID unit or the belt unit. |
Paper feed motor driver, belt motor driver | Pull out the CU/PU board HOP connector, and check the following at the side of the connector: Between 1pin – FG: Several MΩ Between 2pin – FG: Several MΩ Between 3pin – FG: Several MΩ Between 4pin – FG: Several MΩ Pull out the CU/PU board BELT connector, and check the following at the side of the connector: Between 1pin – FG: Several MΩ Between 2pin – FG: Several MΩ Between 3pin – FG: Several MΩ Between 4pin – FG: Several MΩ |
Replace the CU/PU board. |
Check the system connection | ||
Feed motor drive cable, ID motor drive cable, belt motor drive cable, fuser drive cable | Check the connection condition of the CU/ PU board HOP connector, DCID connector, DCHEAT connector, BELT connector 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. |
Normalize the connection condition. Replace the cable with the normal cable. |
Pull out the CU/PU board HOP connector, and check the following at the side of the connector: Between 1pin – FG: Do not short-circuit Between 2pin – FG: Do not short-circuit Between 3pin – FG: Do not short-circuit Between 4pin – FG: Do not short-circuit Pull out the CU/PU board BELT connector, and check the following at the side of the connector: Between 1pin – FG: Do not short-circuit Between 2pin – FG: Do not short-circuit Between 3pin – FG: Do not short-circuit Between 4pin – FG: Do not short-circuit |
Normalize the connection condition. Replace the cable with the normal cable. |
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MPT clutch cable | 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. |
Normalizes the connection condition. Replace the clutch. |
MPT clutch | Pull out the CU/PU board MPC connector, and check the following at the side of the connector. Between 1pin – FG: Do not short-circuit Between 1pin – 2pin: About 240Ω |
Replace the clutch and properly assemble appropriate parts. |
Paper feed motor | Pull out the CU/PU board HOP connector, and check the following at the side of the connector. Between 1pin – 2pin: 3.4Ω or 5Ω Between 3pin – 4pin: 3.4Ω or 5Ω Pull out the CU/PU board BELT connector, and check the following at the side of the connector. Between 1pin – 2pin: 3.4Ω or 5Ω Between 3pin – 4pin: 3.4Ω or 5Ω |
Replace the Paper feed motor. |