Epson Stylus Pro 4400 - Printing Mechanism (Print Head); Relationships of Colors to Nozzles by Mode; Relationship between Nozzle Rows and Colors

EPSON Stylus Pro 4400/4450/4800/4880/4880C Revision C
Operating Principles Printer Mechanism Components 116
2.2.1 Printing Mechanism (Print Head)
The printing method uses the unique EPSON MACH method of previous
models.
The Print Head incorporates a thermistor. According to the temperature around
the head detected by the thermistor, the CPU on the Main Board controls the
ink discharge speed and the amount of ink to be discharged.
 Printing method: On-demand ink-jet
 Nozzle configuration: 180 nozzles x 8 rows = 1440 nozzles
(Refer to Figure 2-1 for nozzle arrangement.)
 Nozzle pitch : 0.141mm (1/180 inch) for each color
Figure 2-1. Nozzle Arrangement
Table 2-2. Relationships of Colors to Nozzles by Mode
Mode Model Color
Number of
Nozzles for
Each Color
4 Colors
Stylus Pro 4400
Stylus Pro 4450
• Matte Black x 2
• Cyan x 2
• Magenta x 2
• Yellow x 2
360
8 Colors
Stylus Pro 4800
• Matte Black /
Photo Black
• Light Black
• Cyan
• Magenta
• Yellow
• Light Cyan
• Light Magenta
• Light Light Black
180
Stylus Pro 4880
Stylus Pro 4880C
• Matte Black /
Photo Black
• Light Black
• Cyan
• Vivid Magenta
• Yellow
• Light Cyan
• Vivid Light
Magenta
• Light Light Black
180
Table 2-3. Relationship between Nozzle Rows and Colors
Nozzle Row
8 Color Mode 4 Color Mode
Stylus Pro 4800
Stylus Pro 4880
Stylus Pro 4800C
Stylus Pro 4400
Stylus Pro 4450
A Light Light Black Light Light Black Matte Black
B Light Magenta Vivid Light Magenta Matte Black
C Light Cyan Light Cyan Magenta
D Light Black Light Black Magenta
E Photo Black /
Matte Black
Photo Black /
Matte Black
Cyan
F Cyan Cyan Cyan
G Magenta Vivid Magenta Yellow
H Yellow Yellow Yellow
Carriage Moving Direction
A row
Paper Feed Direction
B row C row D row E row F row G row H row