HP CP6015dn Service Manual - Page 442

Table 7-4 Control-panel messages (continued) Control panel message Description Recommended action M5: The alignment motor, located in the booklet making area of the finisher, drives the two alignment plates that adjust the side edges of the stacked paper so that the paper in the stack is perfectly aligned with one another. Error occurs when the aligning-plate homeposition sensor (PI5) does not turn on when the aligning plate motor (M5) has been driven for 500 pulses. Also occurs when the aligning-plate homeposition sensor (PI5) does not turn off when the aligning-plate motor (M5) has been driven for 50 pulses. Observe the alignment plates during a booklet-maker stacking operation. ● If the alignment plates move during the operation, perform the following steps: ◦ Check sensor PI5 for damage. ◦ Verify that the sensor flag is not damaged, moves freely, and is correctly aligned with the sensor body. ◦ Make sure that the sensor is securely fastened to the chassis. ◦ Carefully clean the sensor body by gently blowing clean air across the sensors to remove dust and debris. ◦ If the alignment plates or the alignment-plates drive gear has been removed or replaced, make sure that the plates are correctly aligned with each other on the drive gear. ● If the alignment plates do not move during the operation, perform the following steps: ◦ Remove motor M5 and check the gears between the motor and alignment plates for damage. Replace components as necessary. ◦ Verify that connector J7 on the saddle-stitcher controller PCA is fully seated and not damaged. Check the wiring at the M5 motor. ◦ Replace the alignment motor M5. ◦ Only if the error persists and the previous steps fail to correct the problem, replace the saddlestitcher controller PCA. See Saddle-stitcher controller PCA (booklet maker only) on page 738. 400 Chapter 7 Solve problems ENWW