Lexmark C 746 Service Manual
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Repair information4-95 5026 Go Back Previous Next 14.Remove the 5 V interlock switch cable from the restraint (N) on the backside of the EP drive. 15.Remove the EP drive. Installation notes: 1.Push the actuator rack all the way to the right (A). 2.Pull the link all the way up (B). A B
4-96Service Manual 5026 Go Back Previous Next 3.Fasten the 5 V interlock cable into the cable retainer (C) on the bottom of the EP drive. 4.Align the gear so the first gear tooth (D) of the top cover camshaft meshes with the first two gear teeth (E) after the flat area in the EP drive actuator rack, and then seat the right side of the top cover camshaft into the boss (F) on the EP drive. E D Flat area (gap) F
Repair information4-97 5026 Go Back Previous Next 5.Hold the drive in place while replacing the first of the seven screws, then continue replacing the rest of the screws (G).
4-98Service Manual 5026 Go Back Previous Next 6.Replace the two screws (H) from the inside. 7.Replace the three screws (J) on front. 8.Wind the camshaft cable (K) around the cartridge 1/fuser cables about four times to make sure they do not interfere with or are damaged by the fuser motor. 9.Connect the cartridge 1/fuser motor cable (two connectors) (L), and place the cables in the cable retainers (M).
Repair information4-99 5026 Go Back Previous Next 10.Connect the cartridge 2/cartridge 3 motor cable (two connectors) (N), and make sure the cable is in the cable clamps (O). 11.Hold the motor driver card in place and reinstall the two screws (P) to secure the motor driver card. 12.Connect the three connectors (Q), and secure the cables in the cable clamps (R). 13.Reinstall the low-voltage power supply (LVPS). 14.Replace the right and rear covers. 15.Replace the transport belt module and developer units. 16.Replace the cartridges and the fuser. 17.Replace the paper tray. ON O R R Q P
4-100Service Manual 5026 Go Back Previous Next Front door assembly removal See the part number for the Front door assembly for the specific model you need on page 7-7. 1.Remove the front access cover assembly. See “Front access cover assembly removal” on page 4-29. 2.Remove the rear frame cover. See “Rear frame cover removal” on page 4-47. 3.Remove the LVPS. See “Low-voltage power supply (LVPS) removal” on page 4-119. 4.Disconnect the JTPS1 cable (A) from the system board. 5.Release the left and right front door assembly cable springs (B) from the front door assembly. BB
Repair information4-101 5026 Go Back Previous Next 6.Open the front door assembly. 7.Unwrap and remove the cable from the left and right pulleys (C). 8.Close the front door assembly, and remove the mounting screw (D) and the cap (E).
4-102Service Manual 5026 Go Back Previous Next 9.Open the front door assembly, slide it to the right, and remove. You need to press firmly to slide the front door assembly to the right. Installation note: See “Front door assembly front cable (left) removal” on page 4-103 and “The longer cable installs on the left side of the printer.” on page 4-106 for proper installation of the cable restraints.
Repair information4-103 5026 Go Back Previous Next Front door assembly front cable (left) removal 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. BC A
4-104Service 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