Lexmark C760 Service Manual
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Repair information4-5 5060-4xx 324 M3.5x10 mm Plastite Thread Forming Transfer HVPS/RIP fan asm to RIP shield Attach 1 Front left light shield to left upper cover asm and top cover Attach 1 Front right light shield to right front cover support and top cover Attach 1 Cartridge drive assemblies to upper frame Mounting 12 Upper door hinges to upper frame (redrive) Attach 2 Inner redrive assembly to upper frame Mounting 2 Paper level sensing assembly to lower frame Mounting 3 Inner deflector/pick assembly to lower frame Mounting 1 RIP fan to RIP fan duct Attach 2 412 2.9x5.2 mm Plastite Hinge restraint to door (MPF) SEMS Attach 1 423 M3.5x9 mm Plastite Tray bias bellcrank to tray Mounting 1 484 M3.5x14 mm Machine Panhead Printhead to upper frame Mounting 12 Reference number Screw type Location Purpose Qty
4-6Ser vice Manual 5060-4 xx Removal procedures CAUTION: Remove the power cord from the printer or electrical outlet before you connect or disconnect any cable or electronic board or assembly for personal safety and to prevent damage to the printer. Disconnect any connections between the printer and PCs/peripherals. The C76xn weighs approximately 47.7 kg (105 lb) and requires at least two people to lift it safely. Make sure your fingers are not under the printer when you lift or set the printer down. Note: Some removal procedures require removing cable ties. You must replace cable ties during reassembly to avoid pinching wires, obstructing the paper path, or restricting mechanical movement. Top cover assembly Go to “Top cover assembly” on page 7-3 for part number. 1.Remove the redrive cap. 2.Remove the right light shield screw (A) type “324” on page 4-5 and screw (B) “323” on page 4-3 . Also release (C).
Repair information4-7 5060-4xx 3.Remove the right light shield. 4.Unsnap the bottom of the operator panel bezel and remove. 5.Remove the top cover mounting screws (D) from the front of the printer.
4-8Ser vice Manual 5060-4 xx 6.Remove the top cover screws (E) type “323” on page 4-4 from the rear of the printer. 7.Open the MPF and remove the top cover screw (F) type “323” on page 4-4 from the left side of the printer. 8.Remove four screws (G) holding the outer system board shield.
Repair information4-9 5060-4xx 9.Disconnect the cable from J2 (H) on the system board and pull the cable through the inner system board shield. 10.Remove the top cover.
4-10Service Manual 5060-4 xx Front lower left cover Go to “Front lower left cover” on page 7-3 for part numbers. 1.Remove the paper tray. 2.Open the front cover. 3.Open the paper path access door and carefully remove screw (A) type “323” on page 4-3, and close the door. 4.Tape front jam access door (B) if tape is available, to help hold the door in place. The spring loaded door is difficult to reassemble. Avoid disassembly of the door, unless you need to replace the paper path access door. 5.Remove the screw (C) in the front left handle cover assembly.
Repair information4-11 5060-4xx 6.Remove the front lower left cover with the paper path door attached. Paper path access door cover Go to “Paper path access door” on page 7-3 for part numbers. 1.Remove the front lower left cover. See “Front lower left cover” on page 4-10 . 2.Separate the paper path access door cover and the front lower left cover. Note: Do not lose the spring. Front left handle cover assembly Go to “Front left handle cover assembly” on page 7-3 for part number. 1.Remove the front lower left cover. See “Front lower left cover” on page 4-10 . 2.Remove the three front left handle cover assembly screws (A) type “323” on page 4-3 and remove the assembly.
4-12Service Manual 5060-4 xx Front lower right cover 1.Remove tray. 2.Remove front right handle cover assembly. See “Front right handle cover assembly” on page 4-13 . 3.Open the paper path access door and remove the left lower cover screw (A) type “323” on page 4-3. 4.Close the paper path access door and tape front jam access door (B) if tape is available, to help hold the door in place. The spring loaded latch is difficult to reassemble. Avoid unlatching the left side, if you just need access to the right screw.
Repair information4-13 5060-4xx 5.Remove the screw (C) from the front lower right cover. 6.Remove the assembly. Front right handle cover assembly Go to “Front right handle cover assembly” on page 7-3 for part number. 1.Open the front cover. 2.Remove the four front right handle cover assembly screws (A) type “323” on page 4-3 and the screw (B) from the front lower right cover. 3.Remove the assembly.
4-14Service Manual 5060-4 xx Front cover assembly Go to “Front cover assembly” on page 7-3 for part number. 1.Open the front cover assembly. 2.Remove the detent post tension spring (A). 3.Unsnap the bottom of the operator panel bezel and remove. A