Epson DFX-8000 Service Manual page 77

Table 23. Carriage Motor Specifications
Supply voltage
resistance
Armature
Table24 Encoder Specifications
Light emitting element
Light receiving element
Supply voltage
Output waveform
Phase difference
Resolution
Response frequency
Note: In actual carriage operation, one slit is equivalent to l/120 of an inch.
DC servo motor
36.5 VDC f
1 V
2.13 ohms at 77OF (25%)
LED
Photodiode
I 5 VDC +5%
Two-phase rectangular pulses (lTL level)
90
288 slits (see Note)
15 KHz
Principles of Operation
I
2-5