HP Color LaserJet Enterprise CM4540 Service Manual - Page 658
Table 3-26, Causes and solutions for stapler/stacker stationary jams
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Table 3-26 Causes and solutions for IPTU stationary jams (continued) Cause Solution Poor contact exists in the IPTU media feed sensor connector. Reconnect the connector (J553) on the IPTU controller PCA. The IPTU media feed sensor is defective. Run a manual sensor test to verify that the IPTU media feed sensor is functioning properly. If it is not, replace the IPTU media feed sensor. Paper is wrapped around the delivery roller in Remove the wrapped paper. the product. Table 3-27 Causes and solutions for stapler/stacker feed delay jams Cause Solution Poor contact exists in the stapler/stacker media feed sensor connector (SR1). Reconnect the connector (J451) on the stapler/stacker controller PCA. The stapler/stacker media feed sensor (SR1) is defective. Replace the stage unit. Poor contact exists in the inlet solenoid drive connector. Reconnect the connector (J462) on the stapler/stacker controller PCA and the connector (J120) of the inlet solenoid. The inlet solenoid is defective. Replace the inlet solenoid. Poor contact exists in the stapler/stacker media feed sensor (SR5) connector. Reconnect the connector (J453) on the stapler/stacker controller PCA. The stapler/stacker media feed sensor (SR5) is defective. Replace the stage top unit. Poor contact exists in the inlet solenoid drive connector. Reconnect the connector (J462) on the stapler/stacker controller PCA and the connector (J120) of the inlet solenoid. The inlet solenoid is defective. Replace the inlet solenoid. Table 3-28 Causes and solutions for stapler/stacker stationary jams Cause Solution The lever for the stapler/stacker media feed sensor (SR2) is set incorrectly or damaged Check the sensor lever to make sure it is set correctly. If it is damaged, replace the stage unit. The spring of the stapler/stacker media feed sensor (SR2) lever is unhooked. Check the spring and place it in correct position. Poor contact exists in the stapler/stacker media feed sensor (SR1) connector. Reconnect the connector (J451) on the stapler/stacker controller PCA. The stapler/stacker media feed sensor (SR2) is defective. Replace the stage unit. Poor contact exists in the stapler/stacker feed Reconnect the connector (J461) on the stapler/stacker controller PCA. motor drive connector. The stapler/stacker feed motor is defective. Replace the stapler/stacker feed motor. 606 Chapter 3 Solve problems ENWW
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