Epson DLQ-3500 Reference Manual page 44

Caution:
c
Never use the knob to adjust the tear-off position; this may
damage the printer or cause it to lose the tear-off position.
Note:
Your tear-off position setting remains in effect until you change it, even
if you turn off the printer.
1. Press the Pause button if the printer is printing.
2. Make sure the Tear Off/Special Paper lights are flashing
(the paper is at the current tear-off position). You may need
to press the Tear Off/Special Paper button to advance the
paper to the tear-off position.
3. Hold down the Pause button for about three seconds. The
Pause light begins flashing and the printer enters the Micro
Adjust mode.
4. Press the LF/FF D button to feed paper backward, or press the
Load/Eject U button to feed paper forward, until the paper
perforation is aligned with the tear-off edge of the printer
cover.
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Paper Handling
Pause Paper Out
3sec
Micro Adjust
LF/FF Load/Eject