Lexmark C760 Service Manual
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Appendix A—Service tipsA-7 5060-4xx Finisher alignment This tip provides detailed instructions for aligning the finisher to the printer. The sides of the finisher must be parallel with the printer and at the same height, or you may have paper feeding problems. There are four locations where adjustments can be made to correctly align the finisher with the printer. There are two adjustment casters on the left (the side closest to the printer) and two on the right, underneath the platform cover. Note: The short finisher left casters adjust with caster bolts, while the tall finisher left casters adjust with wingnuts. How the casters are adjusted depends on whether you have the short or tall finisher. Short finisher –Printer –Optional duplex unit –Three additional 500-sheet drawers –Printer stand –Finisher Finisher Printer Duplex unit 500-sheet drawers Printer stand
A-8Service Manual 5060-4 xx Tall finisher –Printer –Optional duplex unit –One additional 500-sheet drawer –Optional 2000-sheet drawer –Finisher PrinterFinisher Duplex unit 500-sheet drawer 2000-sheet drawer
Appendix A—Service tipsA-9 5060-4xx Step 1: Secure the printer Completely stabilize the printer before the finisher alignment process is started. How this is done depends on whether you have a short or tall finisher. Short finisher 1. Attach caster brakes (A) to the two back legs of the printer caster base. 2.Screw the caster brakes onto the legs of the caster base. 3.Adjust the leveling feet (B) on the caster brakes so they securely touch the floor. Ta l l f i n i s h e r Adjust the four leveling feet (C) on the bottom of the 2000-sheet drawer so all four securely touch the floor. C
A-10Ser vice Manual 5060-4 xx Step 2: Align the pin Adjust the two casters on the left side (closest to the printer) to raise or lower the finisher as needed, so the pin (D) on the printer properly aligns with the hole in the finisher (the pin should freely slide into the hole). Short finisher 1. Insert the Allen wrench (E) into either caster bolt (F). 2.Rotate the wrench in the appropriate direction to adjust the height of the finisher (clockwise raises the finisher). 3.Repeat with the other caster bolt. D
Appendix A—Service tipsA-11 5060-4xx Ta l l f i n i s h e r Loosen or tighten the wingnuts (G) to adjust the height of the finisher (clockwise raises the finisher). Step 3: Align the bumper pads Adjust the two casters on the right side (under the platform cover) to raise or lower the finisher as needed so the two bumper pads on the finisher lightly touch the printer. This ensures that the gap (H) between the printer and finisher is the same from top to bottom. H
A-12Ser vice Manual 5060-4 xx Short and tall finisher 1. Lift the platform cover. 2.Insert the Allen wrench (E) into either caster bolt (J). 3.Rotate the wrench in the appropriate direction to adjust the height of the finisher (clockwise raises the finisher). 4.Repeat with the other caster bolt. Step 4: Adjust the tilt If necessary, adjust the tilt of the finisher so that the front is flush with the front of the printer. This can usually be done by adjusting the two front casters (those closest to the finisher door). Note: When adjusting the tilt, be sure that the adjustments made in steps 1 and 2 are maintained. Additional adjustments may be necessary in those locations. If the finisher wobbles after making adjustments in steps 1, 2, and 3, make sure each caster touches the floor. XX
Appendix A—Service tipsA-13 5060-4xx Step 5: Connect the finisher and printer Push the finisher against the printer, making sure the gap in the front is the same as the gap in the back. When adjoining the finisher and the printer, make sure that the finisher cable is out of the way of the paper path. If the cable folds itself between the finisher and the printer, disconnect the cable, twist it one time, and then reconnect it. This may help the cable bend the other direction. Finisher alignment quick check Use this table to make sure all alignments have been made. Make sure: To make adjustments, see: 1. The printer is secured to the floor. “Step 1: Secure the printer” on appendix page A-9 2. The finisher’s height is correct. The pin should align with the hole in the finisher, and the finisher should easily dock to the printer without interference or binding with the pin. “Step 2: Align the pin” on appendix page A-10 3. The finisher is vertically aligned to the printer. The finishers two bumper pads should lightly touch the printer. “Step 3: Align the bumper pads” on appendix page A-11 4. The finishers tilt is correct. The printer and finishers front covers should be flush together at top and bottom. If you run your hand across them from side to side they should feel as if they are one part. “Step 4: Adjust the tilt” on appendix page A-12 5. The finisher is squarely docked to the printer. The printer and finishers top covers should have the same distance between them at the front and rear when docked. “Step 5: Connect the finisher and printer” on appendix page A-13 XX
A-14Ser vice Manual 5060-4 xx Duplex option deflector button replacement 230 Paper Jam - duplex deflector fails During a duplex job, the duplex option fails to actuate the deflector in the fuser and the paper is diverted away from the duplex. The duplex option does not receive the sheet and prompts a 230 Paper Jam message. Replace the rubber deflector button with the enclosed compression spring deflector button. Replacing the button 1.The FRU kit contains two parts that should be assembled as shown. 2.Remove the deflector button by pulling up.
Appendix A—Service tipsA-15 5060-4xx 3.Place the new button into the cam. 4.Verify the new button moves freely by pressing the button firmly down and watching it snap back. Note: Leave the button in the up position.