Epson Stylus pro 7700m, Service Manual

Page: 79 / 139

4.1.4 Black Head Angle Adjustment
The black head angle adjustment is required when the black head is replaced or disassembled. If
this adjustment is not correct, a white banding problem may occur, or the color head timing may
not match the black head timing. The following figure illustrates the black head angle adjustment.
The black head angle is adjusted with linear and angular spacers. A linear spacer is attached to both
sides of the head base, and an angular spacer is attached only to the right side of the head base.
Spacers for the black head come in different shapes for the thickness needed. The following figure
shows the relationship between the shape and thickness.
Black He ad
(Angle Adjustment Concept)
Black Head
(Reverse Side)
Head Base
Carriage
Angular Spacer
Linear Spacer
(Spacer Setting Position)
Figure 4-2. Black Head Angular and Linear Spacers
0.05
0.10
0.15
0.20
0.25
0.05
0.12
0.19
0.26
0.33
0.47
0.54
0.61
0.68
0.75
0.40
Angular Spacers (For Black Head)
Linear Spacers (Only Use for Black Head)
Spacer Name Spacer Name Thickness Thickness
Shape Shape
angular spacer BK
angular spacer BK:B
angular spacer BK:C
angular spacer BK:D
angular spacer BK:E
linear spacer K
linear spacer J
linear spacer I
linear spacer
linear spacer B
linear spacer C
linear spacer D
linear spacer E
linear spacer F
linear spacer G
linear spacer H
Figure 4-3. Types of Spacers and Relationship between
Shape and Thickness
Stylus Pro XL Adjustments
Rev. A 4-5