Coil Resistance And Printhead Cable Signals - Epson DFX-8500 Service Manual

DFX-8500

COIL RESISTANCE AND PRINTHEAD CABLE SIGNALS

The following table provides the coil resistance for the motor, head fan, plunger, and printhead.
Table 5-3. Motor, Fan, Plunger, and Printhead Coil Resistance
Part
Carriage (CR) motor
Print Feed (PF) motor
Ribbon Feed (RF) motor
Platen Gap (PG) motor
Head fan
Plunger
Printhead
Shield Cable
Printhead Cable Board
5-4
Coil Resistance
1.66 Ω + 10 %
2.80 Ω + 10 % at 25
150 Ω + 10 % at 25
250 Ω + 18 Ω at 25
61 Ω + 4.3 Ω at 25
9 Ω + 5 % at 25
2.93 Ω + 0.2 Ω at 25
2
1
3
Figure 5-3. Printhead FPC
o
C
o
C
o
C
o
C
o
C
o
C
Double-sided Adhesive Tape
C
B
A
4
5
Printhead Cable
Protection Sheet
Printhead FPC