DOT IMPACT PRINTER MECHANISMS
MD-911

Classification to Dot Impact Printer Mechanism

Classification by "Paper roll width"

58mm 69mm 76mm 38mm+38mm 45mm+45mm

Classification by "Printing color "

Single color (Black) Two colors (Red & Black)

Friction feed or Sprocket feed

Friction feed Sprocket feed

2 Stations

38mm + 38mm 45mm + 45mm

MD-911

Paper roll

58mm

Printing method	Serial impact dot matrix
Printing direction	One-way printing
Printing speed	Approx. 1.8 lines/sec.
Number of columns	40 columns: 180 dots/line
Font	4 × 7 matrix
Number of wires	8 pins(4 pins × 2 heads)
Character size(W × H)	Approx. 1.1 × 2.4mm
Character pitch	1.17mm(Interval of columns) 3.52mm(Interval of lines)
Motor	Voltage: 5.0V DC / Peak current: Approx. 1A / Average current: 0.3A max.
Dot pulse sensor	Photo interrupter
Home pulse sensor	Leaf switch
Printing sensor	Voltage: 5.0 +0.5 -1.2 V DC / Resistance: 1.7±0.3Ω(25°C)
Paper feeding solenoid	Voltage: 5.0 +0.5 -1.2 V DC / Resistance: 9±2Ω(25°C)
Connecting method	Copper foil patterns at 2.54mm pitch.
Driving voltage	3.5~5.5V DC
Printing paper	57.5±0.5mm
Copy	Original print + 1 copy
Ink ribbon cartridge	Single color (Black)
Paper feeding speed	Approx. 3.6 lines/sec.
External dimensions (W × D × H)	90 × 45.5 × 16mm
Weight	105g±10%
Operating temperature	0~50°C
Storage temp. range	-25~70°C
Reliability	MCBF: 1.0 million lines

MD-910- (1) SS (2) A (3)	(1) Type	910: 24 columns 911: 40 columns
	(2)Knob	SS: No knob HS: Horizontal knob VS: Vertical knob
	(3) Special feature	None: Regular model A: Cold temperature model

AW-5 (not supported by CBM-909)

IR-91B

IR-91L (Long life)