Epson DFX-9000 Service Manual page 66

Epson DFX-9000
2.2.1.1 Printhead pinout
The printhead is comprised of four 9-pin heads. The four heads are
arranged in two head pairs, Front and Rear. Head numbers 3 and 4
comprise the Rear head (inner pins in the matrix), and head numbers 1
and 2 comprise the Front head (outer pins).
The thirty six print wires are arranged in a diamond-shape as shown in
Figure 2-3, which also shows the pin-out matrix of the four printheads.
Operating Principles
Each Pin Group
consists of 9 pins
Pin-1
Pin-9
Figure 2-3. The pin-out of the four print heads
Printer mechanism
Pin-1
Pin-9
Front
Revision B
Pin Group
#1
#4
#2 #3
Rear
[Sub-Head]
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