Epson LX-86TM Spezifikationen PDF herunterladen (Seite 63)

REV.-A

The auto loading function is valid under the following conditions:

● When the printer is OFF LINE.

● Just after the signal from the paper end sensor changes from LOW to HIGH. (The leading edge of

the signal is checked for.)

2.4.6.4 Paper Feed Motor Drive Circuit

Figure 2-28 shows the paper feed motor drive circuit.

E05A03

—

.—

PFA

PFB

PFC

PFD

(3B)

CPU

PA2

CN5

al 7

“

Q16

“

3.3K

X 4

77!7

843x4

+24 +5

+J+”JL

3.3K

3 4 ‘

(lC)

5.6K

Q18

093

R17

(2B)

EMOIZW

Fig. 2-28. Paper Feed Motor Drive Circuit

The paper feed motor drive circuit is a constant voltage switching circuit

(unipolar drive), which is the

same as the carriage motor drive circuit. When output port PF of the

E05A03 is HIGH, voltage is applied

to the motor coil. When

PA2

of the CPU is HIGH, +24 V is applied to

PFCOM.

When it is LOW, +5

V is applied to

PFCOM.

2-31

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