Lexmark C736 Service Manual
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Repair information4-19 5026 Go Back Previous Next Cover removals Front access cover assembly removal See Front access door cover assembly for the part number for the models you need on page 7-3. 1.Remove the paper tray. 2.Disconnect the transfer module cable (A). 3.Press the two tabs (B) to release the front access door cover assembly. 4.Press the two tabs (C) on either side of the transfer module, and lift out the transfer module. Note: Leave the photoconductor units on the transport belt when removing. Warning: To avoid damaging the photoconductor drum, hold the photoconductor units by their handle and place the photoconductor units on a clean surface. Never expose the photoconductor units to light for a prolonged period of time. See “Handing the photoconductor unit” on page 4-2 for additional information. AC B
4-20Service Manual 5026 Go Back Previous Next 5.Looking down at the keyed end of the restraint (D), twist the end clockwise, slide the restraint upward through the slit (E), and slip the end of the restraint through the keyed hole (F). Repeat for the other side. DF E
Repair information4-21 5026 Go Back Previous Next 6.Close the front access door assembly. 7.Remove the two screws (G) that attach the pivot pin to the front access door cover assembly. 8.Remove the bracket (H). 9.Remove the front access cover assembly. Left cover removal See “Left cover” on page 7-3 for the part number. 1.Remove the paper tray. 2.Remove the waste toner assembly. See “Waste toner assembly removal” on page 4-174. 3.Open the front access door. 4.Open the top access door. 5.Remove the two screws (A) on the bottom and one screw higher up (B). 6.Press the locking tab (C). GH AB C
4-22Service Manual 5026 Go Back Previous Next 7.Remove the screws (D) from the rear left cover. 8.Lift, and remove the left cover and rear left cover together. Note: Because the paper tray dust cover is loose at this point, set it aside. Note: If you are removing the left cover to access another part, leave the left cover and the rear left cover attached, and you are done. If you need to replace the left cover FRU, continue with the next step to remove the separate rear left cover FRU.
Repair information4-23 5026 Go Back Previous Next 9.Separate the left cover and rear left cover by sliding the left rear cover as shown to disengage the latch (E).
4-24Service Manual 5026 Go Back Previous Next Operator panel assembly removal See “Operator panel assembly, with card” on page 7-3 for the part number. Warning: When replacing any one of the following components: •Operator panel assembly •System board •Top access cover assembly Only replace one component at a time. Replace the required component, and perform a POR before replacing a second component listed above. If this procedure is not followed, the printer will be rendered inoperable. 1.Remove the top access cover assembly. See “Top access cover assembly removal” on page 4-40. 2.Turn the top access cover assembly over. 3.Remove the nine screws (A) securing the position guide.
Repair information4-25 5026 Go Back Previous Next 4.Remove the four screws (B) from the operator panel card. Note: Observe the position of the ground cable (C). 5.Disconnect the operator panel cable (D). D
4-26Service Manual 5026 Go Back Previous Next 6.Gently turn the operator panel card over, and disconnect both display cables (E). Note: The ribbon cable has a latch (F) that needs to be lifted to disconnect the cable. 7.Turn the top access cover assembly over. 8.Gently use a flathead screwdriver to pry out the lens from the bezel back cover. GH
Repair information4-27 5026 Go Back Previous Next 9.Remove the display from the lens. Note: The operator panel assembly consist of the display and the operator panel card.
4-28Service Manual 5026 Go Back Previous Next Operator panel bezel removal See Operator panel bezel on page 7-3 for the part number. 1.Open the front cover. 2.Rotate the operator panel to its highest position. 3.Using a flathead screwdriver or similar tool, unsnap the locking tabs on the upper left and the upper right of the bezel. The tabs on the right and left side will then release. 4.Rotate the bezel down, and remove the bezel. Installation note: When reinstalling or replacing the bezel, insert the bottom of the bezel first, ensuring that the bezel bottom portion fully seats.