OKI MC363
Troubleshooting. Paper feed jam (error code 390: Multipurpose tray)
Jam occurs immediately after the power is turned on. (Multipurpose tray)
Check item | Checking method | Action |
---|---|---|
Check condition of the paper 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 | ||
IN sensor and WR sensor lever check | Check the sensor lever shapes and operations for any problem | Replace the sensor lever(s) with proper one(s) |
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). |
In sensor and WR sensor output level check | Check the following signals by using the CU/PU board RGSNS connector : RGSNS 5pin: IN sensor RGSNS 2pin: WR sensor Confirm that the above signal levels change when the sensor lever is operated. |
Replace the sensor. |
Jam occurs immediately after paper feed is started. (Multipurpose tray)
Check item | Checking method | Action |
---|---|---|
Check condition of the paper running path | ||
Paper running path of the multipurpose tray | Check if paper is jammed or not in the paper running path. | Remove the jammed paper. |
Sheet Receive of the multipurpose tray | Confirm that the Sheet Receive has moved up normally. Confirm that the support spindle and spring of the Sheet Receive have been installed in the specified positions normally. |
Correct installation of the above parts so that the Sheet Receive moves up to the specified position normally. |
Check condition of the mechanical parts | ||
IN sensor and WR sensor lever check | Check the sensor lever shapes and operations for any problem | Replace the sensor lever(s) with proper one(s). |
Front cover | Confirm that the locks in the right and left of the front cover are locked normally. | Replace the font cover assembly |
Check the feed roller and the pickup roller. | Check if any foreign materials such as paper dust on the surface of the feed roller or of the pickup roller or not. | Remove the foreign material. |
Check if the feed roller has worn out or not | Replace the feed roller. | |
Motor operation check | ||
Paper feed motor | Confirm that the paper feed motor works normally by using the Motor & Clutch Test of the self-diagnostic mode. | Replace the CU/ PU board or the feed motor. |
Paper feed 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 |
Replace the CU/PU board. |
Clutch operation check | ||
MPT clutch and regist clutch | Confirm that the paper feed motor 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. | Replace the CU/PU board or MPT clutch or regist clutch. |
Check the system connection | ||
Paper feed motor drive 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. |
Replace the cable with the good cable that normalizes the connection condition. |
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 |
Replace the cable with the good cable that normalizes the connection condition. | |
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 |
Replace the Paper feed motor. |