Lexmark C736 Service Manual

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Wireless network card removal
1.Remove the rear frame cover. See “Rear frame cover removal” on page 4-33. 
2.Disconnect the wireless cable from the system board at J5 (A), by squeezing the tabs at either end 
together.
3.Remove the two screws (B) that secure the card into place. 

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4.Pop the posts (C) on the card from the sockets (holes) in the system board.
Note:  If you are removing the wireless network card to access another part, leave the antenna attached to the 
card, and you are done. If you need to replace the wireless network card FRU, continue with the next step to 
remove the separate wireless network antenna FRU.
5.Remove the wireless network antenna. See “Wireless network antenna removal” on page 4-175. 

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Option removals
HCIT media tray assembly removal
Note:  When removing the high-capacity input tray (HCIT) media tray assembly, it is not necessary to remove it 
from the base machine and the caster base.
1.Open the HCIT media tray assembly (A) until it reaches a stop.
2.Press the latches (B) on the left and right side of the HCIT tray slides.
3.Slide the HCIT media tray assembly out of the drawer.
B
B
A 

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HCIT front tray cover removal
Note:  When removing the high-capacity input tray (HCIT) front tray cover, it is not necessary to remove the 
HCIT media tray assembly from the base machine and the caster base.
1.Remove the HCIT media tray assembly. See “HCIT media tray assembly removal” on page 4-191.
2.Remove the six screws (A) securing the HCIT front tray cover to the media tray assembly.
3.Remove the HCIT front tray cover. 

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HCIT rear cover removal
1.Remove the four screws (A) securing the HCIT rear cover to the drawer.
2.Remove the HCIT rear cover. 

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HCIT right cover removal
1.Carefully remove the printer or multifunction printer from the high-capacity input tray (HCIT) and remove 
the HCIT from the caster base.
2.Remove the HCIT media tray assembly. See “HCIT media tray assembly removal” on page 4-191.
3.Remove the HCIT rear cover. See “HCIT rear cover removal” on page 4-193.
4.Remove the six screws (A) securing the HCIT right cover to the drawer.
5.Remove the HCIT right cover.
A
A 

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HCIT left cover removal
1.Carefully remove the printer or multifunction printer from the high-capacity input tray (HCIT), and remove 
the HCIT from the caster base.
2.Remove the HCIT media tray assembly. See “HCIT media tray assembly removal” on page 4-191.
3.Remove the HCIT rear cover. See “HCIT rear cover removal” on page 4-193.
4.Remove the six screws (A) securing the HCIT left cover to the drawer.
5.Remove the HCIT left cover.
A
A 

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Feed with bushing roller removal
1.Remove the high-capacity input tray (HCIT) top plate assembly. See “Top plate assembly removal” on 
page 4-204.
2.Remove the four screws (A) securing the pass thru sensor bracket to the top plate assembly.
Note:  The bushing may come off when removing the pass thru sensor bracket.
3.Remove the screw (B) securing the 46T gear (C) to the top plate assembly.
4.Remove the 46T gear.
5.Snap loose the feed roller (D), and...

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HCIT controller board assembly removal
1.Remove the HCIT right cover. See “HCIT right cover removal” on page 4-194.
2.Disconnect the seven connectors (A) from the HCIT controller board.
3.Remove the ground screw (B) from the HCIT controller board.
4.Remove the two screws (C) securing the HCIT controller board to the card mount option.
5.Remove the HCIT controller board.
A
BC 

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HCIT drawer slide assembly removal
The left and right drawer slide assemblies are the same, and only one is in a package. The instructions below 
are for removing the left slide, but removing the right slide is similar.
1.Remove the HCIT media tray assembly. See “HCIT media tray assembly removal” on page 4-191.
2.Remove the three screws (A) securing the HCIT drawer slide to the side frame.
3.Remove the HCIT drawer slide.
HCIT elevator motor with sensor...