Epson Stylus Pro 7600 - UltraChrome Ink Service Manual - Page 105

PRINT HEAD, Nozzle Arrangement, Table 2-2., Relationship between Nozzle Rows and Colors

Page 105 highlights

EPSON Stylus Pro 7600/9600 Revision A PRINT HEAD Stylus Pro 7600/9600 employs a single print head which incorporates both functions for black and color. (The preceding model has two print heads, namely, head B and head C.) 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: „ Black: „ Color: „ Nozzle pitch: 96 nozzles x 7 rows = 672 nozzles (See Figure 2-3 for nozzle arrangement.) 192 nozzles (96 nozzles for each of Black1 and Black2) 480 nozzles (96 nozzles for each of cyan, magenta, light cyan, light magenta and yellow) 0.141mm (1/180 inch) for each color Table 2-2. Relationship between Nozzle Rows and Colors Ink Type Nozzle Row Color Pigment A Photo Black or Matte Black B Gray or Matte Black C C D Lc E M F Lm G Y Dye A Bk B Bk C C D Lc E M F Lm G Y A Row B Row C Row D Row E Row F Row G Row Paper Feed Direction Carriage Moving Direction Figure 2-3. Nozzle Arrangement † Drive waveform: There are three printing modes (drive waveforms) for each of use of pigment ink and use of dye ink. Table 2-3. Printing Modes (Drive Waveforms) Ink Type Waveform Ink Discharged Name (ng) Drive Frequency Print Resolution CR Speed VSD1 Pigment ink VSD2 VSD4 13.8-27.6-41.5 4.5-9.5-23.0 4.5 8.64 KHz 8.64 KHz 2 shots at 6.84 KHz H360 x V360 H720 x V360 H720 x V720 H1440 x V720 H2880 x V1440 240 CPS 240 CPS 190 CPS Operating Principles Print Mechanism Components 105

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EPSON Stylus Pro 7600/9600
Revision A
Operating Principles
Print Mechanism Components
105
PRINT HEAD
Stylus Pro 7600/9600 employs a single print head which incorporates both functions
for black and color. (The preceding model has two print heads, namely, head B and
head C.)
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:
96 nozzles x 7 rows = 672 nozzles
(See Figure 2-3 for nozzle arrangement.)
Black:
192 nozzles (96 nozzles for each of Black1 and Black2)
Color:
480 nozzles (96 nozzles for each of cyan, magenta,
light cyan, light magenta and yellow)
Nozzle pitch:
0.141mm (1/180 inch) for each color
Figure 2-3.
Nozzle Arrangement
Drive waveform:
There are three printing modes (drive waveforms) for each of use of pigment ink
and use of dye ink.
Table 2-2.
Relationship between Nozzle Rows and Colors
Ink Type
Nozzle Row
Color
Pigment
A
Photo Black or Matte Black
B
Gray or Matte Black
C
C
D
Lc
E
M
F
Lm
G
Y
Dye
A
Bk
B
Bk
C
C
D
Lc
E
M
F
Lm
G
Y
Table 2-3.
Printing Modes (Drive Waveforms)
Ink Type
Waveform
Name
Ink Discharged
(ng)
Drive Frequency
Print Resolution
CR Speed
Pigment ink
VSD1
13.8-27.6-41.5
8.64 KHz
H360 x V360
H720 x V360
240 CPS
VSD2
4.5-9.5-23.0
8.64 KHz
H720 x V720
H1440 x V720
240 CPS
VSD4
4.5
2 shots at 6.84 KHz
H2880 x V1440
190 CPS
Carriage Moving Direction
A Row
B Row
C Row
D Row
E Row
F Row
G Row
Paper Feed Direction
B Row