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5.5.15 Auto Alignment Input Sensor
1. Remove the cabinet (see 5.5.1).
2. Remove the 4 screws mounting the mechanism to the baseplate.
3. Remove the 2 screws in the PCB upper corners or, if the PCB has button fasteners, pry each
upper corner free and fold the PCB down.
4. Disconnect the Input Sensor cable from J5 of the Main PCB.
5. Remove the Auto Alignment Skew Sensor (see 5.5.14)
6. Remove the input tray support.
7. Remove the screw fastening the input sensor to the left side plate. Keep the sensor mounting spacer that is
freed when the sensor mounting screw is removed.
8. Mount the new sensor and route its cable back under the document drive to the Main PCB. Assure the
cable does not run under the gate or gate assembly hardware.
9. Push the mechanism toward the front right corner of the baseplate before fastening them.
10. Insure that the sensor PCB sits flush against the baseplate and left edge of the input guide and that the
sensor cable passes under the sensor mounting spacer.
11. Reverse the procedure in steps 1 to 6.
12. Adjust the input tray height (See 5.4.7).
13. Adjust the TOP, INDEX and EJECT HOLD offsets so that inserted documents are correctly positioned
(See 5.2). Record any new values on the parameter label.
14. Calibrate the skew sensor (See 5.4.14).
5.5.16 Ribbon Drive Cable
1. Before proceeding, read the rest of this procedure to insure that the correct routing of the new cable is
understood. Refer to assy. drawing 73255-1 for DP6 or 73255-4 for DP7.
2. Remove the cabinet (see 5.5.1). Move the carriage to the center. If working with a DP7, remove the home
sensor from the left pivot arm. If working with a DP7 or if there are 2 ribbon cable springs on the DP6 left
pivot arm, remove the old cable and upper spring and skip to Step 7.
3. Remove the screw from the middle of the right pivot arm slot. Slide the cable ball ends to the middle of the
slot to release them from the arm and remove the cable. Discard the screw and cable.
4. Remove the cotter pin mounting the ribbon cable yoke and spring to the middle of the left pivot arm slot.
Discard the pin, yoke and spring.
5. Insert the long cotter pin (supplied) through the lower hole in the left pivot arm slot until the pin loop
contacts the arm hole and then bend the pin legs flush against the arm and around the edges of the arm.
Similarly mount the short cotter pin to the pivot arm slot upper hole..
6. Attach one of the springs (supplied) to the lower cotter pin loop.
7. Kinking the new cable during installation can shorten its life. Keep a slight tension on the cable while routing
so it will not unwind.
8. Attach one cable end to the lower spring mounted on the pivot arm.
9. Route the cable under the rear ribbon drive pulley and then over the top of the rear pulley.
10. Route the cable end back under the rear pulley so that it passes (DP6:behind, DP7:in front of) the previous
wrap.
11. Route the cable through the bottom pivot arm hole, through the channel of the plastic ribbon cable retainer
(supplied) and back through the top pivot arm hole.
12. Thread the cable end over the top of the front drive pulley.
13. Route the cable around the front pulley and again thread it over the top of the front pulley so it passes
(DP6:behind, DP7: in front of) the previous wrap.
14. Attach the cable end to the other spring and stretch the spring just enough to attach it to the upper spring
fastening loop.
15. Move the carriage back and forth. Check for smooth travel of the cable around the two pulleys and for
equal tension on both springs.
16. Reinstall the DP7 left home sensor.
