Epson LQ-2550 Technical Manual page 51

REV.-A
2.1.2 Printer Mechanism Operations
The Model-5560 is a serial printer mechanism equipped with a 24-pin impact dot printhead. This """
mechanism has various new features to reduce manual paper handling. A block diagram is shown in
Figure 2-2.
Printing Mechanism
@ T h e r m a l S e n s o r
@ T h e r m a l S e n s o r
PG Adjust Mechanism
- - - - - - - - - - - - - - - -
' @ P A M o t o r
Carriage Mechanism
@ C R M o t o r
@CR H. P. Sensor
@ A S M o t o r
Paper Feed Mechanism
- - - - - - - - - - - - - - - -
' @ A L S o l e n o i d
I
c
Printer Mechanism
Figure 2-2. Printer Mechanism Block Diagram
+ 3 5
I
Driver Circuit
I
+ 3 5
Driver Circuit
I
+ 3 5
I
A
I
+ 3 5
Driver Circuit
+ 3 5
A
T
Driver Circuit
I
+ 3 5
I
Driver Circuit
+ 3 5 + 5
I
Driver Circuit
I
I
+ 3 5
Driver Circuit
+ 3 5
Driver Circuit
I
I
I
ROMA Board
2-4
..%
+ 5
f
c