HP CP6015dn Service Manual - Page 444

Table 7-4 Control-panel messages (continued) Control panel message Description Recommended action properly, the plate movement sensors might have failed. ● Inspect the paper-pushing plate home position sensor PI14, pushing-plate leadingedge position sensor PI15, and paper-pushing motorclock sensor PI1. Make sure that the sensors are securely fastened to the chassis. Check sensor PI4, sensor PI15, and sensor PI1 for damage. ● Verify that connectors J6, J9, and J23 on the saddlestitcher controller PCA are fully seated and not damaged. Check the wiring at the sensors. ● Only if the error persists and the previous steps fail to correct the problem, replace the saddle-stitcher controller PCA. See Saddle-stitcher controller PCA (booklet maker only) on page 738. 66.12.46 Finisher: communication lost with stitcher controller PCA Error occurs when communication between the stacker-controller board and the saddlestitcher-controller board has been lost or interrupted. Control-panel diagnostics: none 1. Make sure that the finisher is properly grounded. ◦ Ensure that the finisher is latched and locked to the engine by tightening the thumbscrew inside the front door. ◦ Ensure that the grounding-frame assembly (the bar with the wheel located between the engine and the finisher) is in the down position with the wheel touching the floor and that the grounding plate is not damaged. NOTE: The grounding-frame assembly is in the up position when the finisher is shipped. It must be lowered when the finisher is installed. 2. Verify that connector J730 on the stacker controller PCA and the wiring between connector J22 on the saddlestitcher controller PCA are fully seated and not damaged. 402 Chapter 7 Solve problems ENWW