Epson 4003353 Service Manual page 81

OVERVIEW
4.1
This section describes the adjustments that are required when the printer is disassembled and
assembled after repair. Since this printer has both the black head and color head, it needs new
adjustments not required fix previous printers. Perform the suitable adjustments by referring to the
following table.
The adjustments must be performed in the order indicated. Always follow the correct order.
When performing steps 1-5, perform the cleaning operation for the black and CO1OY print
heads. The cleaning operation is needed because pn"nting the sample patterns fm the head
angle, Bi-11 alignment, and the head gap increases the viscosity of the ink and the printer
following adjustments in the order shown:
the old one. At this time, use the carti"dges exclusively for Semice (Monochrome: 1020626,
Work Contents
When replacing the M-4A1O
printer mechanism
When replacing or
disassembling the
C137 MAIN board or printer
mechanism
When replacing or
disassembling the black head
(board)
When replacing or
disassembling
the color head (board)
When replacing or
disassembling
both the color and black head
When replacing or
disassembling
the mriage unit
Rev. A
vertical,
Table 4-1. Required Adjustments
1. Bi-D alignment adjustment (See section 4.1.2)
2. Head gap adjustment (See section 4.1.3)
3. Internal timer reset operation (See section 4.1.8)
1. Destination data writing operation (See section 4.1.1)
2. Bi-D alignment adjustment (See section 4.1.2)
3. Head gap adjustment (See section 4.1.3)
1. Blackhead angle adjustment (See section 4.1.4)
2. Black - Color head vertical adjustment (See section 4.1.5)
3. Head gap adjustment (See section 4.1.3)
4. Bi-D alignment adjustment (See section 4.1.2)
1. Color head angle adjustment (See section 4.1.6)
2. Black - Color head vertical adjustment (See section 4.1.5)
3. Head gap adjustment (See section 4.1.3)
4. Bi-D alignment adjustment (See section 4.1.2)
1. Color head angle adjustment (See section 4.1.6)
2. Black head angle adjustment (See section 4.1.4)
3. Black - Color head vertical adjustment (See section 4.1.5)
Head gap
4. adjustment (See section 4.1.3)
5. Bi-D alignment adjustment (See section 4.1.2)
1. Platen gap adjustment (See section 4.1.7)
Adjustment Contents
Adjustments
4-1