Lexmark C 950 Service Manual

							Repair information 4-327
  5058-030
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5.Remove the two screws securing the bracket (B) to the finisher.
Note:  The upper media bin vertical cover (C) has slots that make access to the screws easier, as shown.
6.Remove the bracket (B).
7.Release the hooks securing the sensor (lower media exit) (A) to the bracket.
8.Remove the sensor (lower media exit) (A).
Sensor (media eject clamp HP) removal
1.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313.
2.Remove the upper media bin assembly. See “Upper media bin assembly removal” on page 4-356.
A
BFront Clamp
Connector
Right
B
AAccess slots
C 
						

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3.Remove the two media eject unit springs attached to the media eject unit assembly by pushing them 
downward.
4.Remove the media eject clamp motor assembly. See “Clamp drive motor removal” on page 4-272.
5.Release the hooks of the sensor (media eject clamp HP) (A) from the bracket (B).
6.Remove the sensor (media eject clamp HP) (A).
Sensor (media eject shaft HP) removal
1.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313.
2.Disconnect the connector from the sensor (media eject shaft HP) (A).
3.Rotate the media eject clutch actuator (B) by hand so it clears the sensor (media eject shaft HP) (A).
Right
Springs
B
A
B 
						

							Repair information 4-329
  5058-030
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4.Release the hooks securing the sensor (media eject shaft HP) (A) to the bracket (C).
5.Remove the sensor (media eject shaft HP) (A).
Sensor (punch carriage shift HP) 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 punch carriage assembly. See “Punch carriage assembly removal” on page 4-308.
4.Remove the one screw securing the bracket (A) to the punch carriage unit (B).
Rear
B
AC
Connector 
						

							4-330  Service Manual 5058-030  
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5.Release the hooks securing the sensor (punch carriage shift HP) (C) to the bracket (A).
6.Remove the sensor (punch carriage shift HP) (C).
Sensor (punch hole select), sensor (punch cam front), and sensor (punch unit HP) 
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 punch carriage assembly. See “Punch carriage assembly removal” on page 4-308.
4.Remove the screw securing the bracket (A) to the punch unit assembly (B).
AB
C
A
B 
						

							Repair information 4-331
  5058-030
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5.Disconnect the connector from the sensor (punch hole select) (C), the sensor (punch cam front) (D), or the 
sensor (punch unit HP)
 (E).
6.Release the hooks securing the sensor(s) to the bracket.
7.Remove the sensor(s).
Reinstallation note:  Make sure the color coded-connectors are connected to the proper sensors, as shown.
Sensor (punch unit motor encoder) 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 top cover. See “Top cover removal” on page 4-355. 
5.Remove the punch carriage assembly. See “Punch carriage assembly removal” on page 4-308.
6.Disconnect the connector from the punch unit motor assembly (A).
7.Disconnect the connector from the sensor (punch unit motor encoder) (B).
8.Remove the harness from the clamp.
C
D
A
E White Black Blue
Connector
Connector 
						

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9.Remove the two screws securing the bracket (C) to the punch unit assembly (D).
10.Release the hooks securing the sensor (punch unit motor encoder) (B) to the bracket (C).
11.Remove the sensor (punch unit motor encoder) (B).
Sensor (punch unit side registration pair) with bracket 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 top cover. See “Top cover removal” on page 4-355. 
5.Remove the punch carriage assembly. See “Punch carriage assembly removal” on page 4-308.
6.Remove the screw securing the cover (A) to the punch unit assembly (B).
7.Remove the cover.
BB
ClampA
C
D
Connector 
						

							Repair information 4-333
  5058-030
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8.Remove the two screws securing the paper guide (C) to the punch unit assembly (B).
Note:  Do not remove the harness attached to the paper guide (C).
9.Turn the paper guide (C) upside down.
10.Remove the two screws securing the bracket (D) to the paper guide (C).
11.Remove the bracket (D).
12.Remove the two connectors from the sensor (punch unit side registration pair) (E).
13.Release the hooks securing the sensors (punch unit side registration pair) (E) to the bracket (D).
14.Remove the sensor (punch unit side registration pair) (E).
Note:  The two sensors are identical.
Sensor (punch waste box set) removal
1.Open the finisher front door assembly.
2.Pull the punch waste box.
3.Disconnect the connector from the sensor (punch waste box set) (A).
)
BA
D
C
Connectors
CD E
Connectors 
						

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4.Release the hooks securing the sensor (punch waste box set) (A) to the finisher.
5.Remove the sensor (punch waste box set) (A).
Sensor (stacker bin level encoder) removal
1.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313.
2.Disconnect the connector from the sensor (stacker bin level encoder) (A).
3.Release the harness from the clamp.
4.Remove the screw securing the bracket (B) from the stacker bin lift motor assembly (C).
A
Connector
A
B
CRear Clamp
ClampConnector 
						

							Repair information 4-335
  5058-030
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5.Release the hooks securing the sensor to the bracket (B).
6.Remove the sensor (stacker bin level encoder) (A).
Sensor (stacker bin level F) 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.
3.Disconnect the connector from the sensor (stacker bin level F) (A).
4.Remove the screw securing the sensor (stacker bin level F) (A) to the finisher.
5.Remove the sensor (stacker bin level F) (A).
Sensor (stacker bin level R) 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.
Front
A Connector 
						

							4-336  Service Manual 5058-030  
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3.Disconnect the connector from the lift tray height sensor (stacker bin level R) (A).
4.Remove the screw securing the sensor (stacker bin level R) (A).
5.Remove the sensor (stacker bin level R) (A).
Sensor (stacker bin upper limit) or sensor (stacker bin no media) removal
1.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313.
2.Remove the rear lower cover. See “Upper media bin front cover removal” on page 4-357.
3.Remove the stacker media bin assembly. See “High capacity feeder (HCF) removals” on page 4-363.
4.Remove the stacker bin lift motor assembly. See “Stacker bin lift motor assembly removal” on 
page 4-341.
5.Remove the four screws securing the metal cover (A) to the finisher.
ARear
Connector