HP CP6015dn Service Manual - Page 403

Table 7-4 Control-panel messages (continued) Control panel message Description Recommended action 3. Carefully clean the sensor body by gently blowing clean air across the sensor to remove dust and debris. 4. Verify that the wiring at the sensor is not damaged and that the connector J708 on the stacker controller PCA is fully seated. 13.12.14 Finisher delay jam at PI34. Control panel diagnostics: none Upper-paper-path-entry sensor (PI33) has signaled that paper has passed but upperpaper-path exit sensor PI34 does not actuate within the expected time, suggesting that the paper has jammed between PI33 and PI34 in the upper paper path. To locate these sensors, see Detect jams in the stacker unit on page 636. 1. Remove any media jammed in the upper paper path between sensor PI33 and sensor PI34. 2. Check the paper path between sensor PI33 and sensor PI34 for obstructions that may be preventing the media from reaching PI34. 3. Verify that the PI34 sensor flag is not damaged, moves freely, and is correctly aligned with the sensor body. 4. Make sure that sensor PI34 is securely fastened to the chassis and wiring is properly connected to sensor. NOTE: Sensor PI34 is located on the front frame of the finisher, directly over the primary stapler. 5. Verify that the wiring at the sensor is not damaged and that the connector J707 on the stacker controller PCA is fully seated. 6. Only if the error persists and the previous steps fail to correct the problem, replace the stacker controller PCA. See Stacker controller PCA on page 737. 13.12.15 Finisher stay jam at PI34 Finisher's upper-paper-path-exit sensor (PI34) remains activated longer than expected suggesting that paper has jammed at the sensor. Control panel diagnostics: M31 (entrance motor), SL32 (buffer roller solenoid), and SL33 (output roller solenoid) To locate this sensor, see Detect jams in the stacker unit on page 636. PI34 is located on the front frame of the finisher, above the main stapler unit. 1. Remove any media in the upper paper path that might be activating sensor PI34. 2. Carefully clean the sensor body, by gently blowing clean air across the sensor to remove dust and debris. ENWW Control-panel messages 361