Lexmark C 746 Service Manual

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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 4-193.
3.Remove the HCIT rear cover. See “HCIT rear cover removal” on page 4-195.
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 4-193.
3.Remove the HCIT rear cover. See “HCIT rear cover removal” on page 4-195.
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 4-206.
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 4-196.
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 4-193.
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...

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3.Release the hooks (B) securing the pass thru sensor to the top plate assembly. 
4.Remove the pass thru sensor from the top plate assembly.
5.Release the harness from the clamps (C).
6.Remove the eight screws (D) securing the elevator motor with sensor to the side frame.
7.Remove the elevator motor with sensor. 

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HCIT pick arm roll removal
1.Remove the high-capacity input tray (HCIT) media tray assembly. See “HCIT media tray assembly 
removal” on page 4-193.
2.Pull the auto compensator pick arm (A) down.
3.Remove the pick arm roll (B) from the pick roll assembly (C).
4.Repeat for the other pick arm roll (D).
Note:  Always replace the pick arm rolls as pairs.
Installation notes:
See “Pick arm roll removal and replacement” on page 4-143 to make sure the pick arm roll...

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HCIT slide assembly with spring removal
1.Remove the HCIT controller board assembly. See “HCIT controller board assembly removal” on 
page 4-199.
2.Disconnect the two springs (A) from the frame.
Note:  Leave the springs attached to the cam size sensing plate (B) and the actuator switch.
3.Slide the cam size sensing plate (B) through the access hole in the rear side frame.
4.Remove the media size actuator from the card mount option (C).
5.Snap loose the...

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6.Remove the four screws (E) securing the card mount option to the frame.
7.Remove the card mount option.
Installation note:
1.Place the card mount option into position, and secure it with the four screws.
2.Reinstall the media size actuator to the card mount option.
3.Reinstall the actuator switch with spring through the inside of the drawer. 
4.Reinstall the cam size sensing plate with spring through the access hole in the rear side.
5.Reattach the two...