Printhead Specifications; Ink Sequence - Epson Stylus Photo R1800 Service Manual

EPSON Stylus Photo R1800/R2400

8.3.1 Printhead Specifications

The Printhead of this product is a F-Mach head.
The following shows the arrangement of the nozzles and the color
arrangement of each nozzle line when viewed the Print Head from behind.
7.620mm
(216/720inch)
2.258mm 2.258mm
(64/720inch) (64/720inch)
Line A Line C
Line B
0.071mm
(1/360inch)
Carriage moving direction
Figure 8-2. Nozzle Arrangement
Table 8-4. Nozzle Lines and the Corresponding Ink Color
Line
A
B
C
D
E Photo-black / Matte-black
F
G
H
Stylus Photo R2400
7.620mm 7.620mm
(216/720inch) (216/720inch)
2.258mm 2.258mm
(64/720inch) (64/720inch)
Paper feeding
Line E LineG
Line D Line F Line H
31.89mm
41.66mm
Ink
Light Light Black
Light Magenta
Light Cyan
Light Black
Cyan
Magenta
Yellow

8.3.2 Ink Sequence

Displacement cleaning / replacement cleaning
This printe provides 2 patterns of combination of black inks in the E row.
Refer to Table 8-4 "Nozzle Lines and the Corresponding Ink Color" on page 203
When replacing the ink cartridges using the 2 patterns that are mentioned
above with the carriage unit at the home position, 2 types of displacement
cleaning are performed to prevent a new ink from mixing with a old one.
If the ink types are not displaced in the E row, a replacement cleaning is
performed instead of a displacement cleaning.
Cartridge displacement CL
3.09g (0.425g per color)
Cartridge replacement CL1: each color
direction
Suction amount 3.09g (0.386g per color)
Cartridge replacement CL2: each color
Suction amount 3.14g (0.393g per color)
0.141mm
(1/180inch)
Accessories
Revision B
.
203