Tektronix Phaser 600, Руководство по обслуживанию

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Service Manual 6-9
Troubleshooting
6
Print feed jams -- internal jam error
Paper feed jams, noted as internal jams, occur if the left or right of the paper is
less than 8 mm (1.3 in.) from the respective end of the drum, or the left or right
edge of the media cannot be detected at all by the printhead’s left and right
paper-edge sensors. Media shorter or narrower than 17.75 cm (7 inches) causes
an internal jam.
During X-axis initialization
1. Look for an obstruction on the X-axis rails. Ensure the printhead is not
striking one of the ink loader flags.
During clamp initialization
1. Check the operation of the paper clamp. Ensure that it is securely
clamping the paper and pulling the paper as the drum rotates.
2.
Inspect the clamp stopper to ensure it has not been bent and therefore
incorrectly operating the clamp.
During media loading
1. Check the paper-eject path for obstructions.
2.
Ensure the leading edge of the media is straight and square. Check the
roll holder for a loose endcap.
3. Ensure that roll media is correctly loaded on the roll holder with the
adjustable end on the left end of the roll.
4.
Using diagnostics, ensure the skew sensors operate correctly.
5. Using diagnostics, check the left and right printhead sensors are
operating correctly.
During printing
1.
Check that the space between the drum and the clamp is correct when
the clamp is in the ready position. Refer to the Chapter 9 topic “Paper
clamp alignment” on page 9-11. Also ensure that the clamp is parallel
with the back tension blade.
2.
Check that the Y-motor drive belts are properly tensioned. Refer to the
Chapter 9 topic “Y-axis motor belt and drum belt tension” on page 9-7.
3. Inspect the drum for shiny spots near the ends that could “fool” the
printhead’s paper edge sensors. Clean the drum.