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Eng
OKI ES5442
Troubleshooting. Error code 391. Jam occurs immediately after the power is turned on. (1st tray)
Check condition of the paper running path
Check item |
Checking method |
Action in case of NG |
Paper running path of the front unit |
Open the front cover check if paper is not jammed in the paper running path. |
Remove the jammed paper. |
Check condition of the mechanical parts
Check item |
Checking method |
Action in case of NG |
Hopping sensor and IN 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 item |
Checking method |
Action in case of NG |
Check the detection condition of the sensor signal. |
Confirm that the sensor signals are normally detected by using the Maintenance Menu SWITCH SCAN function. |
Replace the CU/PU board, or appropriate sensor(s) or connection cord(s) |
Hopping sensor and IN sensor output level check |
Check the following signals by using the CU/ PU board HPSNS and RGSNS connector : HPSNS pin 2: Hopping sensor RGSNS pin 5: IN sensor Check that the above signal levels are changed by operating the levers of the sensors. |
Replace the CU/PU board. |