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
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
Pap
e
r Feed
Directio
n
B row C row
D row E row
F row G row
H row
Summary of Contents for Stylus Pro 4800 Portrait Edition
Page 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 113: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 156: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 200: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 366: ...C H A P T E R 5 ADJUSTMENT ...
Page 448: ...C H A P T E R 6 MAINTENANCE ...
Page 457: ...C H A P T E R 7 APPENDIX ...