Datamax Allegro 2 Operator's Manual page 24

If a label edge is not detected within 12" (305mm) of stock, the
Printer will stop feeding labels. If this occurs, refer to Section 1.4
and reload the Media, see Figure 1-6 to find the location of the
Media Sensor. If a label edge is detected, the Printer will begin to
print the Self-Test pattern. An example of a test pattern is shown in
Figure 2-1. After the test pattern has printed successfully, the
Printer's power switch must be turned 'off' and then turned 'on'
again to reset the Printer.
THR JANUARY 30 , 1997 15:17
VER : CA02-01 0111 01/16/97
SYSTEM ROM CHECKSUM : B763 IS GOOD
SYSTEM ROM CHECKS GOOD
SERIAL PORT BAUD RATE IS 96ØØ
TRANSFER SWITCH I S ON
SETUP SWITCH 1
ANALOG INPUT VALUES:
PAPER: 227
TEMP; 069
16
Setting Up Your Printer
030
2 3
ON ON ON OFF
EDGE: 152 VOLT: 121
POT: 169
Figure 2-1 Test Label
4 5 6 7
OFF OFF OFF
8
OFF
Allegro2