HP CM6030 Service Manual - Page 489

Table 7-4 Control-panel messages (continued) Control panel message Description Recommended action 4. Carefully clean the sensor body by gently blowing clean air across the sensor to remove dust and debris. 5. Verify that the sensor connectors (J708 and J707) are fully seated on the stacker controller PCA. 6. Replace sensor PI33 and PI34. 7. Only if the error persists, replace the stacker controller PCA. See Stacker controller PCA on page 828. 13.12.12 Finisher delay jam at PI33. The engine signals the finisher that paper is about to enter the finisher from the IPTU. The finisher's upper-feed-path-entry sensor (PI33), which detects paper entering the finisher, does not detect the paper within the expected time period triggering the error. To locate this sensor, see Detect jams in the stacker unit on page 726. Open the IPTU and the finisher top door and check the following items: ● If media is found in the IPTU but has not reached the finisher, perform the following steps: ◦ Remove and then reinstall the IPTU. Make sure that the connector is fully seated and that the IPTU is securely fastened. ◦ If the error persists, replace the IPTU. See IPTU on page 736. ● If media is jammed at the exit point of the IPTU (prior to entering the finisher), perform the following steps: ◦ Verify that the finisher is securely fastened to the engine. ◦ Make sure that the finisher and IPTU are correctly aligned. Adjust the finisher castors to obtain a uniform gap between the finisher and the engine. The engine-tofinisher gap must be the same at the bottom and the top so that the finisher is parallel to the engine. With the engine-to-finisher gap correct, make sure that the finisher paper path entry point is aligned with the IPTU exit point. ◦ Check the finisher entry-point guides for damage. ◦ Verify that the finisher rollers are turning before the media leaves the IPTU. If the rollers are not turning, test motor M9 by using the finisher component test from the control- ENWW Control-panel messages 443