Epson LQ-1170 - Carriage Movement Mechanism

REV.-A
2.1.2 Carriage Movement Mechanism
A timing belt is connected to the carriage on its lower side. With the printhead installed, this carriage
moves in either direction along the carriage guide shaft. The carriage is driven by the carriage motor,
a stepping motor that drives the timing belt via the belt drive pulley. The home-position sensor detects
when the carriage is in the home position.
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Carriage
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Carriage Guide Shaft
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Figure 2-2. Carriage Movement
The paper-thickness adjustment lever allows the printer to
use paper of different weights (or
thicknesses). The user can change the platen gap on the carriage guide shaft by moving this lever.
Changing the position of the lever turns the carriage guide shaft and moves the carriage either toward
or away from the platen. Moving the
paper-thickneS.S adjustment Iever to the fourth position or
slows the printing speed to protect the
printhead. The PG sensor reads the current position
paper-thickness adjustment
Iever.
higher
of the
PG Sensor
{’:’””.
Shaft
Figure 2-3. Moving the Paper-Thickness Adjustment Lever
? .,
2-2