Print Head - Epson Stylus CX1500 ME100 Service Manual

EPSON Stylus CX1500/ME100

2.1.2 Print Head

The Print Head is the same U-CHIPS type as the previous printer (Stylus C41/C42/
C43/C44/C45/C46), and makes it possible to perform multiple shot printing and
variable dot printing.
The Print Head nozzle configuration is as follows.
V
Nozzle layout
Black : 48 nozzles x 1 row (nozzle pitch of row: 1/120 inch)
Color : 45 nozzles x 1 row (nozzle pitch of row: 1/120 inch)
The nozzle layout when viewed from the back surface of the Print Head is shown below.
2.2578mm (32/360")
#B48
#B1
Figure 2-2. Nozzle layout
OPERATING PRINCIPLES
16.5mm
#Y15
#Y1
#M15
#M1
#C15
#C1
The Print Head has the Electric Poles (CSIC Connectors) to store the ink consumption
amount data into the CSIC chip mounted on the Ink Cartridge. By storing the ink
consumption amount data, this printer can detect the ink consumption status, such as
Ink Low/Out condition.
The basic operating principles of the Print Head, which plays a major role in printing,
are the same as the previous printer (Stylus C41/C42/C43/C44/C45/C46); on-demand
method which uses PZT (Piezo Electric Element). In order to uniform the ejected ink
amount, the Print Head has its own Head ID (6-digits code for this Print Head for
Stylus CX1500/ME100) which adjusts PZT voltage drive features.
So, you are required to store the Head ID pasted on the Print Head into the EEPROM
by using the Adjustment program when replacing the Print Head, the Main Board Unit,
the Printer Mechanism with new one. (Note: there are no resistor arrays to determine
the Head ID on the Main Board.) And then, based on the stored Head ID into the
EEPROM, the Main Board generates appropriate PZT drive voltage.
Overview
Revision A
31