Lexmark C 950 Service Manual

							Repair information 4-307
  5058-030
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Paddle shaft removal
1.Open the finisher front door assembly.
2.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313.
3.Remove the media eject unit assembly. See “Media eject unit assembly removal” on page 4-303.
4.Loosen the screw securing the knob (A) to the paddle shaft (B) on the front of the finisher.
5.Remove the knob (A).
6.Remove the one e-clip securing the paddle shaft (B).
7.Remove the bushing (C).
8.Loosen the two screws securing the belt tensioner bracket (D) to the rear of the finisher.
9.Release the hook of the sub paddle drive gear 23T (E) from the paddle shaft (B).
10.Remove the sub paddle drive gear 23T (E).
11.Remove the e-clip and the 6 mm bushing (C).
12.Move the paddle shaft (B) toward the rear of the finisher and outward.
13.Remove the paddle shaft (B).
B
C
A E-clip
Screw
Front 
						

							4-308  Service Manual 5058-030  
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Reinstallation notes:
•The tension of the belt (exit) (F) is automatically adjusted by the force of the spring attached to the belt 
tensioner bracket (D).
•Tighten the two screws in the order shown.
Punch carriage assembly removal
1.Open the finisher front door assembly.
2.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313. 
3.Remove the upper media bin assembly. See “Upper media bin assembly removal” on page 4-356.
4.Remove the connector from the sensor (punch carriage shift HP) (A).
5.Remove the top cover. See “Top cover removal” on page 4-355. 
6.Release the harness from the punch carriage assembly (B).
7.Remove the connector from the punch carriage shift motor assembly (C).
8.Release the two punch unit assembly harnesses from the three clamps on the rear of the finisher.
9.Disconnect the two punch unit assembly harnesses from the main harness.
10.Remove the screw securing the grounding wire (D) to the punch unit carriage assembly (B).
Rear
BC
E
DF
Rear
D Tighten
second
Tighten first 
						

							Repair information 4-309
  5058-030
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11.Remove the two screws on the rear securing the punch carriage assembly (B) to the finisher.
A B
E
D
Rear Clamp
ClampClamp C
ConnectorsConnector
Connector 
						

							4-310  Service Manual 5058-030  
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12.Remove the two screws on the front securing the punch carriage assembly (B) to the finisher.
13.While moving the belt (buffer/transport) (E) to the left as shown, pull the punch carriage assembly (B) 
gently out of the rear of the finisher.
Warning:  Do not force the punch carriage assembly (B) out of the finisher. Be sure to hold the unit firmly to 
avoid dropping it.
Reinstallation notes:
Warning:  Make sure the punch carriage assembly is able to shift back and forth completely without binding the 
harnesses, or damage will occur.
•Do not force the punch unit into the finisher.
•Be sure to hold the punch carriage assembly firmly to avoid dropping it.
•Make sure all harnesses are properly clamped.
•Make sure the harnesses do not come into contact with any rotating mechanisms.
Punch carriage shift motor assembly removal
1.Open the finisher front door assembly.
2.Remove the upper media bin assembly. See “Upper media bin assembly removal” on page 4-356.
3.Remove the top cover. See “Top cover removal” on page 4-355. 
4.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313.
5.Remove the punch carriage assembly. See “Punch carriage assembly removal” on page 4-308.
6.Remove the two screws securing the cover (A) to the punch carriage assembly (B).
7.Remove the cover (A).
BFront 
						

							Repair information 4-311
  5058-030
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8.Remove the two screws securing the punch carriage shift motor assembly (C) to the punch unit 
assembly
 (B).
9.Remove the punch carriage shift motor assembly (C).
Punch unit motor assembly removal
1.Open the finisher front door assembly.
2.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313. 
3.Remove the upper media bin assembly. See “Upper media bin assembly removal” on page 4-356.
4.Remove the connector from the sensor (punch carriage shift HP) (A).
5.Remove the top cover. See “Top cover removal” on page 4-355. 
6.Remove the punch carriage assembly. See “Punch carriage assembly removal” on page 4-308.
7.Disconnect the connector from the punch unit motor assembly (A).
8.Disconnect the connector from the sensor (punch unit motor encoder) (B).
9.Remove the harness from the clamp.
A
C
B 
						

							4-312  Service Manual 5058-030  
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10.Remove the two screws securing the punch unit motor assembly (A) to the punch unit assembly (C).
11.Remove the punch unit motor assembly.
B
A Clamp
C
Connector 
						

							Repair information 4-313
  5058-030
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Rear lower cover removal
1.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313.
2.Remove the four screws securing the rear lower cover (A) to the finisher.
3.Remove the rear lower cover (A).
Rear upper cover removal
1.Release the hook of the bridge unit hookup cover (A) to the finisher.
2.Disconnect the bridge unit harness from the finisher.
A 
						

							4-314  Service Manual 5058-030  
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3.Remove the four screws securing the rear upper cover (B) to the finisher.
4.Remove the rear upper cover (B).
Right eject cover removal
1.Remove the finisher front door assembly. See “Finisher front door assembly removal” on page 4-280.
2.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313.
A
BHook 
						

							Repair information 4-315
  5058-030
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3.Remove the two screws securing the right eject cover (A) to the finisher.
4.Remove the right eject cover (A).
Sensor (booklet compiler media entrance) removal 
1.Remove the booklet unit chassis. See “Booklet unit chassis removal” on page 4-267.
2.Remove the booklet unit assembly left cover. See “Booklet unit assembly left cover removal” on 
page 4-266.
3.Disconnect the connector from the sensor (booklet compiler media entrance) (A).
4.Remove the screw securing the sensor (booklet compiler media entrance) bracket from the booklet unit 
chassis.
5.Remove the screw securing the sensor (booklet compiler media entrance) (A) from the bracket.
6.Remove Sensor (booklet compiler media entrance) (A).
A
Right
Connector
A
Left 
						

							4-316  Service Manual 5058-030  
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Sensor (booklet end guide HP) removal 
1.Remove the booklet unit assembly. See “Booklet unit chassis removal” on page 4-267.
2.Remove the booklet unit assembly left cover. See “Booklet unit assembly left cover removal” on 
page 4-266.
3.Disconnect the connector from the sensor (booklet end guide HP) (A).
4.Release the hooks securing the sensor (booklet end guide HP) (A) from the booklet unit.
5.Remove sensor (booklet end guide HP) (A).
Sensor (booklet front tamper HP) removal
1.Remove the booklet unit assembly. See “Booklet unit chassis removal” on page 4-267.
2.Remove the booklet unit assembly left cover. See “Booklet unit assembly left cover removal” on 
page 4-266.
3.Disconnect the connector from the booklet front tamper sensor.
Connector
A
Left