Support for PT-E550W and corresponding label fixes. (#44)

Author: fietser28

brother_ql/labels.py

@@ -112,8 +112,8 @@ def name(self): # type: str
   Label("d12",    ( 12,  12), FormFactor.ROUND_DIE_CUT, ( 142,  142), (  94,   94), 113 , feed_margin=35),
   Label("d24",    ( 24,  24), FormFactor.ROUND_DIE_CUT, ( 284,  284), ( 236,  236),  42 ),
   Label("d58",    ( 58,  58), FormFactor.ROUND_DIE_CUT, ( 688,  688), ( 618,  618),  51 ),
-  Label("pt12",   ( 12,   0), FormFactor.PTOUCH_ENDLESS,( 170,    0), ( 150,    0),   213, feed_margin=14),
-  Label("pt18",   ( 18,   0), FormFactor.PTOUCH_ENDLESS,( 256,    0), ( 234,    0),   171, feed_margin=14),
+  Label("pt12",   ( 12,   0), FormFactor.PTOUCH_ENDLESS,( 128,    0), (  70,    0),  29, feed_margin=14),
+  Label("pt18",   ( 18,   0), FormFactor.PTOUCH_ENDLESS,( 128,    0), ( 112,    0),   8, feed_margin=14),
   Label("pt24",   ( 24,   0), FormFactor.PTOUCH_ENDLESS,( 128,    0), ( 128,    0),   0, feed_margin=14),
   Label("pt36",   ( 36,   0), FormFactor.PTOUCH_ENDLESS,( 512,    0), ( 454,    0),   61, feed_margin=14),
 

brother_ql/models.py

@@ -61,6 +61,7 @@ def name(self):
   Model('QL-1100',  (301, 35434), number_bytes_per_row=162, additional_offset_r=44),
   Model('QL-1110NWB',(301, 35434), number_bytes_per_row=162, additional_offset_r=44),
   Model('QL-1115NWB',(301, 35434), number_bytes_per_row=162, additional_offset_r=44),
+  Model('PT-E550W',  (31, 14172), number_bytes_per_row=16),
   Model('PT-P750W',  (31, 14172), number_bytes_per_row=16),
   Model('PT-P900W',  (57, 28346), number_bytes_per_row=70),
   Model('PT-P950NW',  (57, 28346), number_bytes_per_row=70),