BTP-R880NP Installation manual
2) Storage temperature and humidity
：
-40
～
55
℃
，
≤
93%RH (40 )
℃
5.6 Reliability
1) Life times:
Thermal head:
100,000,000 pulses, 150 km
Auto cutter:
1,800,000 cuts
2) MTBF:
360,000 hours
3) MCBF:
60,000,000 lines
5.7 Black Mark Specifications
The printer can print on thermal paper that has black marks on the reverse side of
the heat sensitive side of the paper. The black marks are used for determining the
top-of-form. When using paper with black marks, the printer should be configured
accordingly in the Configuration setting function (see 4.2). The paper with black
marks needs the meet the following specifications:
z
L1 Mark height: 3mm
≤
L1
≤
13mm.
z
L2 Mark length: L2
≥
10mm.
z
L3 Mark spacing: 20mm
≤
L3<500mm.
z
Mark location: Mark can be located in the left, middle and right (It is only
suitable for 80mm paper rolls).
z
Reflectivity: Mark’s reflection rate should be less than 15%. The reflectivity
of all other (white) area should be higher than 85%. In between the marks
there should be any objects like graphics or text.
Note:
Marks will be measured when printing or feeding. If the sensor detects that the mark
height is larger than that default value (default mark height is 13mm), printer will
report Paper end error.
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