2-32 WorkCentre 3210/3220 Multifunction Printer Service ManualTheory of OperationEngine F/WControl AlgorithmFeedingWhen feeding from a paper tray, the drive of the pick up roller is controlled bythe solenoid.The printer feeds the paper from the manual feeder according to informationprovided by the manual feed sensor, and by driving the main motor, insert thepaper in front of the feed sensor.The jam errors are described in the following table:Jam ErrorsItem DescriptionJAM 0 The leading edge of the paper did not pass the Feed Sensor.■ After paper has been picked up, paper did not enter theprinter.■ After paper has been picked up, paper enters the printer, butdid not reach the Feed Sensor in the specified time.■ After paper has been picked up, and the Feed Sensor is notOn, the printer will re-pick. If after re-picking, the Feed Sensoris still not reported as On, this error occurs.This is an indication that the leading edge of the paper alreadypassed the Feed Sensor.■ Even though paper reaches the Feed Sensor, the Feed Sensoris not On.JAM 1 The paper is between the Feed Sensor and the Exit Sensor.■ After the leading edge of the paper passes the Feed Sensor,the trailing edge of the paper cannot pass the Feed Sensor inthe specified time. (The Feed Sensor cannot be Off.)■ After the leading edge of the paper passes the Feed Sensor,paper cannot reach the Exit Sensor in the specified time. (TheExit Sensor cannot be Off.)JAM 2 After the trailing edge of the paper passes the Feed Sensor,paper cannot pass the Exit Sensor in the specified time.DUPLEX JAM 1 After the trailing edge of the paper passes the Exit Sensor, theleading edge of the paper cannot reach the Duplex Jam Sensorin the specified time.DUPLEX JAM 0 After the leading edge of the paper passes the Regi Sensor, theleading edge of the paper cannot reach the Feed Sensor in thespecified time.
