Lexmark C 950 Service Manual

Repair information 4-27
  5058-030
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10.Using a flat-blade screwdriver, release the three hooks (B) securing the ATC sensor PCB to the machine.
11.Remove the ATC sensor PCB.
Re-installation note: When replacing the ATC sensor PCB, ensure that the five connections are properly 
reconnected.
B 

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Bridge PCBA removal
1.Remove the rear upper cover. See “Rear upper cover removal” on page 4-16.
2.Disconnect the input option cable (A).
3.Remove the eight screws (B) securing the PCBA door to the machine. 

Repair information 4-29
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4.Release the two clamps (C) to release the harness.
5.Swing the PCBA door open.
6.Remove the RIP PCBA. See “RIP PCBA removal” on page 4-147. 

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7.Disconnect all the cables from the bridge PCBA.  

Repair information 4-31
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8.Remove the six screws (D) securing the bracket.
9.Gently detach the bridge PCBA from the upper engine PCBA.
10.Remove the bracket.
11.Remove the three screws (E) securing the bridge PCBA to the bracket.
12.Remove the bridge PCBA.
C toner auger removal
1.Remove the printer front door. See “Printer front door removal” on page 4-10.
2.Remove the transfer belt cleaner. See “Transfer belt cleaner removal” on page 4-175.
3.Remove the waste toner box....

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10.Lift the plastic gate, and push it in to prevent the toner from spilling.
11.Squeeze the two latches (A) to release the upper part of the auger.
12.Detach the lower portion (B) of the auger from the developer unit.
1
2 

Repair information 4-33
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Warning:  The lower portion (B) of the auger is prone to damage. Extra care is required in handling this part.
A
B 

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13.Remove the C toner auger.
Re-installation note: Ensure that the rubber sleeve (C) is attached properly to prevent toner spillage. 
Center exhaust fan removal
1.Remove the rear upper cover. See “Rear upper cover removal” on page 4-16.
2.Disconnect the input option cable (A).
C 

Repair information 4-35
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3.Remove the eight screws (B) securing the PCBA door to the machine.
4.Release the two clamps (C) to release the harness.
5.Swing the PCBA door open. 

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6.Locate the fan (D).
7.Disconnect the cable (E) and then push the two latches (F) to release the fan.
8.Remove the center exhaust fan.