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Impact Dot Matrix Printer Mechanisms


Printing speed: 1.9 /1.2 lines
Paper roll 58/69mm
2 color printing

  • 58/69mm  paper width
  • 1.9 lines/sec (DP-555) and 1.2 llines/sec (DP-575) printing speed
  • 12/17V operation
  • Sprocket feed type available (P type)
  • 2 color printing

Model DP-555 DP-575
Printing method Serial impact dot method
Printing direction L Series Left to right(Horizontal), R Series Right to left(Horizontal)
Printing speed Approx. 1.9 lines/sec. Approx. 1.2 lines/sec.
Number of columns 24 columns 40 columns
Font 5 × 7 matrix
Character size(W × H) 1.7 × 2.75mm 1.25 × 2.75mm
Character pitch 2mm 1.5mm
Line spacing 5.5mm
Motor Voltage: 12V±1V DC / Peak current: Approx. 2.5A(12V, 25°C)
Average Current: Approx. 0.25A
Dot pulse sensor Photo interrupter
Home switch Voltage: 5V DC~20V DC / Current: 100μA ~3mA(Resistance load)
Printing solenoid Voltage: 12V±1V DC / Resistance: 4.9±0.5Ω(25°C)
Energized time: 2 dot pulses(700±50μS)/Peak current: Approx.2A
Main solenoid Voltage: 12V±1V DC / Resistance: 18.4±1Ω(25°C)
Energized time: 16ms±10%(Max.of 5 continuous seconds)
Color change solenoid Voltage: 12V±1V DC / Resistance: 18.4±1Ω(25°C)
Energized time: 20±2ms(Max.of 5 continuous seconds)
Connecting method Flexible cable(SMCD 18 × 91 ES10)
Ink ribbon cartridge Two colors (Red and Black), Single color (Black)
Spool diameter: 30mm or 35mm, width: 13mm
Paper feeding speed Approx. 8 lines/sec.
Printing paper 57.5±0.5mm 69 + 1mm
External dimensions (W × D × H) 120.5 × 114 × 44.5mm
Weight Approx. 450g
Operating temp. range 0~50°C
Paper feeding traction More than 100g (Citizen recommended paper)
Reliability Printer mechanism MCBF: 1.5 million lines / Dot head 50 million characters


Auto cutter Paper winder Ink ribbon cartridge
AC-3/3F NW-58 (DP-555), NW69 (DP-575) IR-01B, RB