Epson 440 Manuale Utente

Carriage mechanism is to drive the carriage with print head mounted from left to right or vice versa.
The carriage drive motor in this printer is a 4-phase, 200-pole, stepping motor and is driven by
1-2phase, 2-2phase and W1-2phase drive method. 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 shows carriage motor
specifications and motor controls at each mode.

Motor type

4-phase/200-pole Stepping motor

Drive voltage Range

42VDC 

•}

 5%

Internal coil resistance

7.8 ohms

•}

10%(per phase under

25

••

environment)

Driving speed(frequency) range[csp(pps)]

5(60)

•`

340(4080)

Control method

Bi-Pola Drive

High speed skip

340

4080

W1-2, 2-2,1-2phase

drive*

Printing(Normal)

200

2400

W1-2phase drive

Printing(SLQ)

100

1200

W1-2phase drive

Capping

80

960

W1-2phase drive

Wiping

40

480

W1-2phase drive

Cap(valve release)

20

240

W1-2phase drive

Withdrawal of cap

5

60

W1-2phase drive

 *Note 1): 

The reason why plural drive methods exist is that following some sequences described below

    exist in the each mode and stable carriage operation and printing are performed individually
    by different drive methods. This drive method is especially necessary for high speed skip.

• 

Acceleration 1 mode 

•¨

 

• 

Acceleration 2 mode 

•¨

 

• 

Deceleration 1 mode 

•¨

 

• 

Deceleration 2 mode

Rotor

A

/A

/B

B

C200 MAIN Board

Connecter CN6(CN7)