Lexmark C 950 Service Manual

							Repair information 4-267
  5058-030
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3.Loosen the two screws securing the left cover to the booklet unit assembly.
4.Remove the booklet unit assembly left cover (A). 
Booklet unit chassis removal
1.Open the finisher front door assembly.
2.Slide the booklet unit out.
3.Remove the two screws that are securing the retainer to the machine.
4.Remove the retainer.
A 
						

							4-268  Service Manual 5058-030  
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5.Release the two latches securing the booklet unit (A) from the guides.
6.Remove booklet unit (A). 
Booklet unit gear train frame removal
1.Remove the booklet unit assembly. See “Booklet unit chassis removal” on page 4-267.
2.Remove the booklet unit motor assembly. See “Booklet folding/exit drive motor assembly removal” 
on page 4-258.
3.Remove the knife solenoid frame. See “Booklet fold solenoid frame removal” on page 4-257.
4.Remove the booklet media entrance drive motor. See “Booklet media entrance drive motor removal” 
on page 4-261.
5.Remove the booklet knife sector drive gear 42T. See “Booklet knife sector drive gear 42T removal” on 
page 4-260.
6.Remove the gear 18T.
A 
						

							Repair information 4-269
  5058-030
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7.Remove the three screws securing the booklet unit gear train frame (A) from the booklet unit.
8.Remove the booklet unit gear train frame (A). 
Buffer diverter gate removal
1.Open the finisher front door assembly.
2.Move the lower pinch guide assembly (A) to the right.
3.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313.
4.Remove the buffer diverter gate solenoid. See “Buffer diverter gate solenoid removal” on page 4-270.
A 
						

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5.Remove the link (B).
6.Move the buffer diverter gate (C) toward the rear, the left, and then forward, as shown.
7.Remove the buffer diverter gate (C).
Buffer diverter gate solenoid removal
1.Open the finisher front door assembly.
2.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313.
3.Disconnect the connector from the buffer diverter gate solenoid (A).
4.Release the harness from the clamp.
Buffer diverter gate
A
B
Rear
CA 
						

							Repair information 4-271
  5058-030
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5.Remove the two screws securing the buffer diverter gate solenoid to the finisher.
6.Remove the buffer diverter gate solenoid. 
Note:  The link (B) may remain inserted into the finisher.
7.Remove the link.
Note:  When the link is removed, the buffer diverter gate may become detached. See “Buffer diverter 
gate removal” on page 4-269.
Buffer pinch guide assembly 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.Remove the rear lower cover. See “Upper media bin front cover removal” on page 4-357.
4.Remove the stapler unit frame. See “Stapler unit frame removal” on page 4-346.
5.Lower the buffer pinch guide assembly (A) as far as it will go.
Clamp
A
Rear B
BConnector 
						

							4-272  Service Manual 5058-030  
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6.Move the buffer pinch guide assembly (A) to the right to remove the two bosses from the holes in the 
finisher.
Clamp drive motor 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.
3.Remove the two media eject unit springs (A) attached to the media eject unit assembly (B) by pushing 
them downward.
Hole in rear frame
Boss
A
Right
AB 
						

							Repair information 4-273
  5058-030
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4.Disconnect the connector from the media eject clamp motor (C).
5.Disconnect the connector from the sensor (media eject clamp HP) (D).
6.Remove the three screws securing the bracket (E) to the finisher.
7.Remove the bracket (E).
Note:  When removing the bracket, turn the media eject clamp gear 70T (F) so that it does not interact with 
the sensor (media eject clamp HP) (D).
8.Remove the two screws securing the media eject clamp motor to the bracket (E).
9.Remove the media eject clamp motor (C).
Reinstallation note:  When replacing the bracket, turn the media eject clamp gear 70T (F) so that it interacts 
with the sensor (media eject clamp HP).
Clamp paddle 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.Remove the media eject shaft assembly. See “Eject roll shaft removal” on page 4-274.
Rear
E
C
D F
Connector 
						

							4-274  Service Manual 5058-030  
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4.Remove the three clamp paddles (A) by sliding them out of the media eject shaft assembly (B).
Reinstallation note:  Replacement is easier if you lightly moisten the rubber surface of the paddles with water.
Eject roll shaft 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.Move the slip clutch gear 24T (A) toward the rear as shown to disengage the stacker bin (B).
4.Move the stacker bin down as shown to its lowest position after it is disengaged.
Note:  Make sure the stacker bin is at its lowest position before continuing.
5.Remove the upper media bin assembly. See “Upper media bin assembly removal” on page 4-356.
Right AB
A
Narrow
Wide 
						

							Repair information 4-275
  5058-030
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6.Remove the four screws securing the right panel (C) to the finisher.
7.Remove the media eject motor assembly. See “Media eject motor assembly removal” on page 4-302.
8.Release the hook of the media eject shaft gear 39T (D) from the eject roll shaft (E).
9.Remove the media eject shaft gear 39T (D).
10.Remove the 6 mm bushing (F).
11.Use a prying tool to remove the e-clip securing the eject roll shaft (E) to the rear of the finisher. 
12.Remove the 8 mm bushing (G).
13.Remove the two e-clips securing the eject roll shaft (E) to the front of the finisher.
14.Remove the 6 mm bushing (F) and the 8 mm bushing (G).
15.Move the eject roll shaft toward the rear and outward as shown.
Rear A
B
C
)F
DRearE-clipG EC
E G
F
Front E-clips 
						

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16.Remove the eject roll shaft (E).
Finisher bottom cover removal
1.Remove the two screws securing the finisher bottom cover (A) to the finisher.
2.Remove the finisher bottom cover (A).
Reinstallation note:  Make sure to put the power cord (B) into the notch on the finisher bottom cover (A).
Finisher buffer roll assembly removal
1.Remove the rear upper cover. See “Rear upper cover removal” on page 4-313.
2.Open the finisher front door assembly.
3.Remove the stapler unit cartridge. 
4.Move the stapler unit assembly by hand as far to the rear as it will go.
5.Lower the buffer pinch guide assembly (A).
E
Rear
B
Notch
A