Epson LQ 1050 - B/W Dot-matrix Printer - Printer Mechanism Operation; Printhead; Carriage Mechanism

REV.-A
2.2 PRINTER MECHANISM OPERATION
The printer mechanism is a 9-pin serial dot matrix impact mechanism. Figure 2-2 shows a drawing of
the mechanism. The name in the rectangles indicate relationship between each mechanism and the
control circuit on the PEGX board.
u
E05A15HA
D
E05A15HA
CN7
E05A15HA
/
Paper End Sensor
----
Plunger
Platen
v“’’’’” “’”
‘r““ “ ‘ “ ‘ ““I
Cantrol Circuit
Feed Motor
Ribbon
Feed
I
)Kl
+
+
(O
Carriage Motor
Home Position
CN6
Printhead
Carriage Motor
Drive
Control
Circuit
Circuit
Figure 2-2. Printer Mechanism Block Diagram
The printer mechanism is composed of the following:
●
Printhead
● Carriage Mechanism
● Home Position Sensor
● Ribbon Feed Mechanism
● Paper Feed Mechanism
2-3