Epson Stylus CX1500 ME100 Service Manual page 32

EPSON Stylus CX1500/ME100
Following explains the basic components for the Print Head.
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PZT
PZT is an abbreviation of Piezo Electric Element. Based on the drive waveform
generated on the Main Board, the PZT selected by the nozzle selector IC on the
Print Head pushes the top of the ink cavity, which has ink stored, to eject the ink
from each nozzle on the nozzle plate.
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Electric Poles for CSIC
This Electric Poles connects the CSIC chip mounted on the Ink Cartridge. By
using this poles, current ink consumption amount data is red out from the CSIC
chip. And, the latest ink consumption amount data is written into the CSIC chip.
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Nozzle Plate
The plate with nozzle holes on the Print Head surface is called Nozzle Plate.
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Filter
When the Ink Cartridge is installed, if any dirt or dust around the cartridge needle
is absorbed into the Print Head, there is a great possibility of causing nozzle clog
and disturbance of ink flow, and alignment failure and dot missing finally. To
prevent this problem, a filter is set under the cartridge needle.
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Ink Cavity
The ink absorbed from the Ink Cartridge goes through the filter and then is stored
temporarily in this tank called "ink cavity" until PZT is driven.
Electric poles for CSIC
Nozzle selector board
CSIC Memory chip PZT
* Head ID for the Print Head is
Nozzle plate
stored to the EEPROM.
Figure 2-3. Print Head sectional drawing
OPERATING PRINCIPLES
Needle
Ink cartridge
Filter
Cavity
Overview
Revision A
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