Appendix D-2 Product Overview Rev. A
Confidential
Outline of Printer Mechanism
Impact Dot Matrix Printer Mechanism
Printing Mechanism (Main Print Head Unit)
This mechanism consists of the main print head unit, which has nine wires vertically arranged in
one row, the head carriage assembly, platen, carriage motor, carriage feed pulley, carriage guide
shaft, carriage transmission pulley, and carriage transmission belt.
Figure D-4
Platen
Main print head unit
Carriage feed pulley
Carriage motor
Head carriage assembly
Carriage transmission belt
Carriage transmission
pulley
Carriage guide shaft
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