78 EasyCoder PX4i and PX6i Service Manual
Chapter 8 — Print Unit
• Check that the media is routed as close to the center section as the
guides allow.
• Enter the Setup Mode and go to Setup Mode→Print Defi nes→LSS
Test→LSS Auto (Fingerprint) or Setup Mode→Test/Service→LSS
Test→LSS Auto (IPL).
• The menu should look like this with the cursor placed in the center:
LSS Auto
• Gap or slot detection:
Lift the printhead and pull out the media slowly. When the LSS detects
a gap or a detection slot, the cursor moves to the right.
LSS Auto
• Black mark detection:
Lift the printhead and pull out the media slowly. When the LSS detects
a black mark, the cursor moves to the left.
LSS Auto
• It is possible to refresh the centered cursor position by pressing the <d>
key.
• If the cursor behaves as described above, the LSS is working and is prop-
erly aligned with the gaps, slots, or black marks.
• If the cursor does not react on a gap, slot, or black mark, check this:
- Is the LSS laterally aligned with the slots or black marks?
- Are both the upper and lower part of the LSS aligned with each
other?
- Is the transfer ribbon properly loaded so it does not interfere with the
LSS?
- Are the sensors clean from dust and the LSS guides free from stuck
labels or other objects that will interfere with the light that goes from
one part of the LSS to the other? If not, clean as described in the
User's Guide.
- Does the media have some kind of preprint that can disturb the
detection?
- Is there too little difference between the black marks and the sur-
rounding areas?
- Does the liner have too little transparency?
- Does the LSS work with another type of media? (Remember to
change the Media Type setup and perform a new testfeed.)
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