Service manual

Black Line and Bottom Gap Sensors Replacement - 2824 980358-307A
Preparations
Protect against static discharge. Your work area must be static-safe and include
a properly grounded conductive cushioned mat to hold the printer and a
conductive wrist strap for yourself.
Perform the removal steps of the Bottom Case Replacement procedure (980358-305).
Removal
1. If necessary, move the main PCBA aside.
2. Unplug the ribbon cable
! from the sensor
1 where it attaches to the main PCBA.
Note its location.
3. Carefully loosen the ribbon cable retainer
on the right side of the lower frame.
4. Use a #1 Phillips to remove the screw 2
that holds the sensor to the bottom of the
lower frame.
Assembly
1. Align the sensor so that its ribbon cable is to the rear; then, place it on the bottom of the lower
frame.
2. Replace the screw that holds the sensor to the frame; then, use a #1 Phillips driver to tighten it.
3. Align the ribbon cable into the cable retainer on carefully close the retainer.
4. Plug the ribbon cable from the sensor into its connector on the main PCBA.
Assembling the Printer
Perform the assembly steps of the Bottom Case Replacement procedure (980358-305). Check the
installation. Turn on the printer and run the AutoSense routine to get a dump mode printout. This
action test the printer's media drive and printing capabilities.
980358-001 Rev. A 53
MOVIE