Epson 440 User Manual download pdf (Page 47)

EPSON Stylus Color 440/640/740 Revision A

Chapter 2 Operating Principles 47

2.1.1.3 Carriage Mechanism

Carriage mechanism is to drive the carriage with print head mounted

from left to right or vice versa. The carriage drive motor in these printers

are a 4-phase, 200-pole, stepping motor and is driven by 1-2 phase, 2-2

phase and W1-2 phase drive method for Stylus Color 440, 460, and by

2-2 phase 1-2 phase, W1-2 phase, 2W1-2 phase and 4W1-2 phase

drive method for Stylus Color 740. This stepping motor allows the

carriage to move freely to

the particular positions which is necessary for various operation, such

as paper feeding, ink absorbing, flashing, ink exchange and cleaning

operations. The tables below show carriage motor specifications and

motor controls at each mode.

Table 2-1. Carriage Motor Specifications

Table 2-2. Motor Control at Each Modes (Stylus Color 440, 640)

Table 2-3. Motor Control at Each Modes (Stylus Color 740)

Figure 2-5. CR (PF) Motor Internal Circuit Diagram

Items Description

Motor type 4-Phase/200-pole Stepping motor

Drive voltage Range 42VDC

Internal coil resistance 7.8 Ohms

10%(per phase under 25

environment)

Driving Speed(frequency)

Range[csp(Hz)]

5(60)

∼

340(4080)

Control method Bi-Pola Drive

Printing mode

Drive Speed

[CPS]

Drive frequency

[PPS]

Drive method

High Speed Skip 340 4080

W1-2, 2-2,1-2

phase drive*

Normal Printing 200 2400 W1-2, 2-2 phase drive

Capping 80 960 W1-2, 2-2 phase drive

Wiping 40 480 W1-2, 2-2 phase drive

Cap

(Valve Release)

20 240 W1-2, 2-2 phase drive

Withdrawal of cap 5 60 W1-2, 2-2 phase drive

Printing mode

Drive Speed

[CPS]

Drive frequency

[PPS]

Drive method

High Speed Skip 340 4080

W1-2, 2-2,1-2

phase drive*

Normal Printing 200 2400 W1-2, 2-2 phase drive

Capping 80 960 2W1-2, 2-2 phase drive

Wiping 40 480 2W1-2, 2-2 phase drive

Cap (Valve

Release)

20 240 4W1-2, 2-2 phase drive

Withdrawal of cap 5 60 4W1-2, 2-2 phase drive

Rotor

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Epson 440 User Manual Page 47

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