TROUBLESHOOTING

5.1.3 Coil Resistance

The following table provides the coil resistance for the motor, head fan, plunger, and printhead.

Table 5-2. Motor, Fan, Plunger, and Printhead Coil Resistance

Part

Coil Resistance

CR motor

1.66 ohms + 10 %

PF motor

2.80 ohms + 10 % at 25oC

RF motor

150 ohms + 10 % at 25oC

PG motor

250 ohms + 18 ohms at 25oC

Head fan

61 ohms + 4.3 ohms at 25oC

Plunger

9 ohms + 5 % at 25oC

Printhead

2.93 ohms + 0.2 ohms at 25oC

Shield Cable

Double-sided Adhesive Tape

C

Head FPC

2

1

 

B

 

A

 

 

 

3

 

 

 

5

4

 

 

 

Head Cable

Protection Sheet

Head Cable Board

Figure 5-3. Disconnect Printhead FPC

Rev. B

5-3

Page 177
Image 177
Epson DFX-8500 service manual Motor, Fan, Plunger, and Printhead Coil Resistance Part