Datamax DMX E E-4204 - Manual (Page 39)

E-Class 29
4.5.2 Label Alignment = AUTO
In this mode, the printer automatically calculates the ‘ALIGN LENGTH’
thus eliminating the need to physically measure the label. This mode is
usually preferred in applications that require frequent media changes to
labels of different lengths.
To perform an Auto Alignment, in Normal Mode press and hold the
FEED button (about 4 seconds). The printer will feed labels to calculate
the label length. Following the calculation, the printer will save the
measurement and align to the top of form position. Auto Alignment can
result in wasted labels during the measurement process (the longer the
label length the greater the waste).
Special Case Auto Alignment when the Present Sensor enabled -
If the printer is equipped with the Present Sensor option and that feature
is enabled, while the label length is being calculated the printer will pause
and illuminate the PAUSE Light after each movement. You must press
the Pause Button for the alignment to continue. This allows you to
remove any labels as required; however, labels should not be forcibly
removed since they may not actually be positioned for removal but only
at an interim position required for measurement.
4.5.3 Label Alignment = NO
When Label Alignment is not enabled (i.e., set to NO), printing begins at
the current label position without alignment, assuming the label is at the
start of print position. Additionally, if the label length is short, labels
between the printhead and the media sensor may be unused.