2 Check the fan for possible overload and correct as necessary. Remedy: 1 Check the connector between FM5-relay CN13-PRCB CN14 for proper connection and correct as necessary.The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary. Description: Suction fan motor malfunction.4 Check the connector between SD1-relay CN4-relay CN6-PRCB CN8 for proper connection and correct as necessary. 3 Check the connector between PS4-relay CN6-PRCB CN8 for proper connection and correct as necessary. 2 Check M1 for correct drive coupling and correct as necessary. Remedy: 1 Check the connector between M1-PRCB CN6 for proper connection and correct as necessary.This trouble code is displayed if the PS4 is not unblocked after the retry While the bypass lift sensor (PS4) is blocked, if the PS4 is not unblocked after the lapse of a given period of time after the bypass pick-up solenoid (SD1) is turned ON, the machine retries the lifting motion. This trouble code is displayed if the PS4 is not blocked after the retry When a print cycle is completed, a jam is fixed, or the power switch is turned ON, if the bypass lift sensor (PS4) does not change from the unblocked to blocked condition after the lapse of a given period of time after the bypass pick-up solenoid (SD1) is turned ON, the machine retries the depressing motion. Description: Bypass tray lift-up failure.
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