HP Color LaserJet Enterprise CM4540 Service Manual - Page 655
Jams in Tray 3
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Table 3-22 Causes and solutions for pickup stationary jams Cause Solution Multiple feed of media Replace any worn or deformed parts (tray separation pad, tray feed roller, MP tray pickup roller or MP tray separation pad). If replacing the MP tray separation pad, you must replace the right door assembly. See Right-door assembly on page 145. Check the separation pad and MP tray separation pad to see if they are firmly seated and coupled with the torque limiter. Replace the separation pad and feed roller for Tray 2 and Tray 3. If the MP tray pickup roller if defective, replace the roller. See Pickup roller (Tray 1) on page 114. If the MP tray separation pad is defective, replace the right door assembly. See Right-door assembly on page 145. The secondary transfer roller is not set correctly. Place the secondary-transfer-roller unit in the correct position. The secondary-transfer roller is worn or deformed. Replace the secondary-transfer-roller assembly. See Secondary transfer assembly on page 204. Poor contact of the drum 3 drive connector Reconnect the connectors of the ITB motor (J42) and the DC controller PCA (J121). The drum motor 3 is defective. Execute the drum 3 driving test in the actuator-drive mode. If the motor is defective, replace the ITB motor. The ITB does not rotate smoothly. Replace the ITB. See Intermediate transfer belt (ITB) on page 120. Jams in Tray 3, 4, and 5 Table 3-23 Causes and solutions for pickup delay and pickup stationary jams Cause Solution The paper-feeder pickup roller is worn or deformed. Replace the pickup roller. See Feed and separation rollers (Trays 2-5) on page 113. The paper-feeder separation roller is worn or Replace the separation roller. See Feed and separation rollers (Trays 2-5) deformed. on page 113. The paper-feeder feed roller is worn or deformed. Replace the feed roller. See Feed and separation rollers (Trays 2-5) on page 113. Poor contact of the paper-feeder media-feed sensor connector (1, 2, or 3) ● Tray 3: Reconnect connectors (J408) and (J13) ● Tray 4: Reconnect connectors (J406) and (J22) ● Tray 5: Reconnect connectors (J403) and (J32) A tray feed sensor is defective. Run the manual sensor test to verify that the paper-feeder media feed sensor is functioning properly. See Tray/Bin manual sensor test on page 393 for information. If it is not, replace the pickup assembly of the specific tray. See Pickup assembly (optional paper feeder) on page 313. ENWW Clear jams 603
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