BIXOLON IMPACT PRINTER SRP-270 - Manual (Page 58)

Rev. 3.02 - 58 -
SRP-270
8-1-10-6 Ribbon feeding
When the carriage motor rot ate s counter clockwise and the carriage motor gear rotates in the direction of
arrow A, the Gear Reduction B' Gear Reduction A Gear Reduction B, rotate in the directions of arrows B,
and C, B' respectively.
This causes the Lever Ribbon Feeder Assy to move in the direction of arrow E, rotating round the Gear
Reduction A shaft in the center, until the Gear Reduction B goes in with the Gear Reduction C.
Since the Gear Reduction C and the ribbon feeder are always engage d, the ribbon feeder rotates in the
direction of arrow G.
When the carriage motor rotates in the reverse direction and the carriage motor gear rotates in the direction
of arrow H, the Lever Ribbon Feeder Assy moves in the direction of arrow F, disengaging the Gear reduction
B from the Gear Reduction C.
Therefore, the ribbon feeder Assy rotates in the direction of arrow G only when the carriage motor rotates
counterclockwise.
Then the ribbon feed and ribbon hold rollers in the ribbon cassette, which are engaged with the ribbon feeder
Assy, rotate and the ribbon is feed.
* Operation of Color change
Color change system consists of Ribbon feeding Mechanism in section 8-1-10-6 and Ribbon Shifting
Mechanism.
Shifting Mechanism on Ribbon consisted of Head carriage Assy, Ribbon Frame, Lever color change,
solenoid Assy as shows in figure.