Epson 440 Manuale Utente

This section describes Printer Mechanism, electric circuit board (C206 PSB, C200 Main, C206PNL
board) of Stylus Color 600.

Unlike previous EPSON Ink Jet printers, printer mechanism of Stylus Color 600 does not have exclusive
mechanism to change over paper feeding and Pumping operation. In stead, this control is done by the
turning direction of paper feed/pump motor and position of carriage at that time. Also, unlike previous print
heads, print head of this printer is became one unit combined with black and CMY head. Black head has
64 nozzles, 180 dpi(vertical direction) and CMY head has 32 nozzles, 90 dpi (vertical direction). Also, since
these print head is driven by frequency 14.4KHz, this printer can print double resolution(1440 dpi/100-dpi)
than Stylus Color. Following figure2-1 shows outline of printer mechanism.

Since the head drive frequency of Stylus Color was 7.2KHz, it could be only 720-dpi printing when it
driven by 100 cps carriage speed. It performs two-pass carriage operation when Stylus Color 600
performs the 1440 dpi printing towards the horizontal line.

As major printer mechanisms in the figure 2-1, there are four major mechanisms as they are listed below.

1) Printing mechanism  2) Carriage unit  3) Paper pick up mechanism

4) Pump drive mechanism

Platen Drive Mechanism

Paper Pickup Mechanism

Pump Drive Mechanism

Carriage Motor

Paper Feed Motor

Paper Pick Up 

Trigger Lever

  Carriage Unit

(Prinr Head Unit)

Timing Belt

Pumping Position