Lexmark T654dn User Manual

The system board has two connections for an optional flash memory or firmware card. Only one of each may be installed,
but the connectors are interchangeable.
CAUTION—SHOCK HAZARD: If you are accessing the system board or installing optional hardware or memory
devices sometime after setting up the printer, then turn the printer off, and unplug the power cord from the
wall outlet before continuing. If you have any other devices attached to the printer, then turn them off as well,
and unplug any cables...

4Push the card firmly into place.
Notes:
The entire length of the connector on the card must touch and be flush against the system board.
Be careful not to damage the connectors.
5Replace the system board cover and close the system board door.
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Installing an Internal Solutions Port
The system board supports one optional Lexmark Internal Solutions Port (ISP). Install an ISP for additional connectivity
options.
Note: This task requires a flathead screwdriver.
CAUTION—SHOCK HAZARD: If you are accessing the system board or installing optional hardware or memory
devices sometime after setting up the printer, then turn the printer off, and unplug the power cord from the
wall outlet before continuing. If you have any other devices attached to the...

aUnplug the printer hard disk interface cable from the system board, leaving the cable attached to the printer
hard disk. To unplug the cable, squeeze the paddle at the plug of the interface cable to disengage the latch
before pulling the cable out.
bRemove the screws holding the printer hard disk in place.
cRemove the printer hard disk by pulling it upward to unseat the standoffs.
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dRemove the thumbscrews that attach the printer hard disk mounting bracket to the printer hard disk, and then
remove the bracket. Set the printer hard disk aside.
4Remove the metal cover from the ISP opening.
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5Align the posts of the plastic tee to the holes in the system board, and then press downward until the tee snaps
into place. Be sure each post of the tee has latched completely, and that the tee is seated firmly onto the system
board.
6Install the ISP onto the plastic tee. Angle the ISP over the plastic tee, and then approach the plastic tee so that any
overhanging connectors will pass through the ISP opening in the system board cage.
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7Lower the ISP toward the plastic tee until the ISP is seated between the guides of the plastic tee.
8Insert the long thumbscrew and turn it clockwise enough to hold the ISP in place, but do not tighten the thumbscrew
at this time.
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9Attach the two provided screws to secure the ISP mounting bracket to the system board cage.
10Tighten the long thumbscrew.
Note: Do not overtighten the thumbscrew.
11Insert the plug of the ISP interface cable into the receptacle of the system board.
Note: The plugs and receptacles are color coded.
12If a printer hard disk was previously installed, then attach the printer hard disk to the ISP. For more information,
see “Installing a printer hard disk” on page 29. Additional printer setup28
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13Replace the system board cover and close the system board door.
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Installing a printer hard disk
The optional printer hard disk can be installed with or without a Lexmark Internal Solutions Port (ISP).
Note: This task requires a flathead screwdriver.
CAUTION—SHOCK HAZARD: If you are accessing the system board or installing optional hardware or memory
devices sometime after setting up the printer, then turn the printer off, and unplug the power cord from the
wall outlet before continuing. If you...

3Locate the appropriate connector on the system board.
Note: If an optional ISP is currently installed, then the printer hard disk must be installed onto the ISP.
To install a printer hard disk onto the ISP:
aUsing a flathead screwdriver to loosen the screws, remove the thumbscrews that attach the printer hard disk
mounting bracket to the printer hard disk, and then remove the bracket.
bAlign the standoffs of the printer hard disk with the holes in the ISP, and then press downward on the printer
hard...