Epson LX-86TM Especificaciones descargar pdf (Pagina 74)

REV.-B

2.5.4

Ribbon

Feed Mechanism

The ribbon feed mechanism consists of the ribbon cartridge and the ribbon feed

driving gearalways turns counterclockwise, via the geartrains shown in Table 2-6,

direction of the timing belt.

Table 2-6 Ribbon Feed Gear Train

section. A ribbon

irrespective of the

Direction of Movement of Carriage

Gear Train

Left to right (arrow

●

)

Belt driven pulley

Planet gear (1)

Planet gear (2)

Ribbon driving gear

Right to left (arrow ~)

Belt driven pulley

Planet gear (1)

Planet gear (3)

Planet gear (4)

Ribbon driving gear

Figure 2-41 shows ribbon feed mechanism. The inked ribbon is inside the cartridge case in an endless

state, held between the ribbon feed and ribbon pressure roller mounted on the ribbon driving gear.

The rollers are driven by the movement of the gear, and the inked ribbon is fed.

A ribbon breaking spring is attached at the exit of the cartridge case to prevent the ribbon from slacking.

A ribbon mask is installed for preventing the ribbon from staining the paper.

Ribbon Feed Roller

‘k

Ribbon

‘

ressure

‘O’’er\

Ribbon Transmission Gear

‘ane””w

Ribbon Driving Gear

Ribbon

riage

Breaking

Spring

Fig. 2-41. Ribbon Feed Mechanism

2-42

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 141 142

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