Paper Feed Mechanism - Epson STYLUS 4001968 Service Manual

STYLUS 800 Service Manual

Paper Feed Mechanism

2.2.3
This printer's paper feed mechanism can feed paper either from the built-in ASF (auto sheet feeder)
or the manual feed slot. The paper feed drive motor is a 4-phase, 4t3-pole, PM-type stepping motor
that directly drives the paper feed mechanism (paper advancing operation, paper pick-up
operation). This motor also drives the pump mechanism, but only when the printer is in the
cleaning state.
)
Rev. A
Table 2-3. Paper Feed Drive Motor Specification
Item
4-phase / 48-pole PM-type stepping motor
Motor Type
35 V + 10% (31.5 - 38.5 V)
Drive Voltage
54 ~ 3
Coil Resistance
650-800 ppS
Drive Frequency
2-2 phase excitation
Excitation Mode
Figure 2-6. Paper Feed Mechanism
Description
/ pole (at 25° C, 77° F)
Q
Operating Principles
2-5