Epson Stylus Photo Service Manual 4
Chapter 4
Adjustment
4.1 OVERVIEW............................................................................................................4-1
4.1.1 Required Adjustments ........................................................................................................... 4-1
4.1.2 Tools Required for Adjustment.............................................................................................4-1
4.2 Adjustments..........................................................................................................4-2
4.2.1 Paper Gap Adjustment........................................................................................................... 4-2
4.2.2 Adjustment using Adjustment Program............................................................................... 4-4
4.2.2.1 Overview of Adjustment Program .............................................................................4-4
4.2.2.2 Preparation for Adjustment........................................................................................ 4-5
4.2.2.3 Ink Charge Operation................................................................................................ 4-6
4.2.2.4 VH Setting ................................................................................................................. 4-6
4.2.2.5 Head Angular Adjustment ......................................................................................... 4-8
4.2.2.6 Bi-D Alignment Adjustment .....................................................................................4-10
Chapter 4 Adjustment
4.1 OVERVIEW
This section describes the procedure for adjustments required when the printer is disassembled and
assembled for repair.
4.1.1 Required Adjustments
Table 4-1 lists all the adjustments required with this printer. If any service listed in this table is carried out,
all adjustments corresponding to that service should be performed to ensure proper operation of the
printer.
Table 4-1. Required Adjustments
Performance Order 1 2 3 4 5
Service Performed Paper-Gap
Adjustment
Replacing
the printer mechanism
Replacing
the C209 MAIN board
Replacing
the printhead unit
Replacing
the CR Motor
Replacing or disassembling
the carriage assembly
Replacing or disassembling
the PF Roller assembly
NA
NA
NA
NA NA NA NA
Ink
Charge
NA NA
NA NA NA NA
VH
Setting
Head
Angular
Adjustment
NA
Bi-D
Adjustment
NA
Note) “”: Required adjustment
“NA”: Not applicable
4.1.2 Tools Required for Adjustment
Table 4-2 lists all the tools required to make the specified adjustments.
Table 4-2. Required Tools
No. Name Adjustment Notes
1 Thickness Gauge Paper-Gap Adjustment
2 Adjustment Program
Ink Charge
VH Setting
Head Angular
Bi-D Alignment
CAUTION
Do not use rusty or deformed thickness gauge for adjustment.
Wipe off any dirt or dust from the thickness gauge before using.
Thickness: 1.04mm
EPSON Code: B776702201
Program Name: K00A10VE.BAS
Rev. A
4-1
EPSON Stylus Photo
2
4.2 Adjustments
This section describes the detail procedure of each adjustment.
4.2.1 Paper Gap Adjustment
The paper gap is a distance between nozzle surface of the printhead unit and a paper surface and is
adjusted to specified gap at the assembly. Therefore, if the carriage assembly is removed from the printer
mechanism for any reason, this adjustment should be made to fix the gap.
CAUTION
Do not scratch the surface of “PAPER GUIDE, FRONT;B” and “ROLLER, ASSEMBLY, PF”.
Be careful not to damage or make dirty the nozzle surface of the printhead unit.
[Paper gap - Right-hand side Adjustment]
1. Attach both “BUSH, PARALLEL ADJUST” (L/R) to the side frame and align the position mark on top
edge of it to a notch on the edge of the side frame.
2. Set “LEVER, PG” to front side (Position “0”).
3. Move the carriage assembly to the middle, and put the thickness gauge at the position specified in the
figure.
4. Move the carriage assembly over the thickness gauge.
WORK POINT
The thickness gauge must be placed on a flat surface of the ribs of “PAPER GUIDE, FRONT;B”.
During adjustment, always pull the timing belt to move the carriage assembly.
5. Shift the position of “BUSH, PARALLEL ADJUST, RIGHT” to backward (Gap: Narrower) until when the
thickness gauge starts sliding together with the carriage assembly when you move it to right and left for
about 20mm.
6. At the point of above step, shift the position of “BUSH, PARALLEL ADJUST, RIGHT” for one notch to
forward (Gap: Wider).
7. Then, confirm that the thickness gauge do not slide when you move the carriage assembly, with either
“LEVER, PG” is at position “0” or “+”.
[Paper gap - Left-hand side Adjustment]
8. Repeat the above step 2 to 7 with “BUSH, PARALLEL ADJUST, LEFT”.
[Gap Confirmation]
9. Repeat the step 3 to 4 again.
10. Confirm that the thickness gauge do not slide when you move the carriage assembly to right and left
for above 20mm.
11. Shift the position of “BUSH, PARALLEL ADJUST, RIGHT” for one notch to backward (Gap: Narrower)
and confirm that the thickness gauge is sliding by moving the carriage assembly. If not, return to step 1
and repeat adjustment again.
12. If the gap is correct, shift “BUSH, PARALLEL ADJUST, RIGHT” for one notch to forward (Gap: Wider).
[Fixing “BUSH, PARALLEL ADJUST”]
13. Fix both bushes with 2 screws (1 each : No.1).
When the paper gap adj ustment complete, confirm that the overlap of printhead nose and “CLEANER,
HEAD”.
1. Move the carriage assembly next to “CLEANER, HEAD”.
2. Confirm that the overlap of printhead nose and top edge of “CLEANER, HEAD” is more than 0.5mm.
4-
Rev. A
Chapter 4 Adjustment
3
Left
Rib: Avoid 2ribs from left
"ROLLER, ASSEMBLY, PF"
Figure 4-1. Paper Gap Adjustment - Thickness Gauge Setting
"PAPER GUIDE, FRONT;B"
Carriage
Assembly
"PAPER GUIDE, FRONT;B"
Right
(HP side)
[Thickness Gauge] Rib: Avoid 1 rib at right end
*Put the gauge on a flat face
*Align the center of gauge and
the ribs
"LEVER, PG"
Figure 4-2. Paper Gap Adjustment - Adjustment Procedure
Forward
(Gap: Wider)
Position Mark
Backward
(Gap: Narrower)
Side Frame
"BUSH, PARALLEL ADJUST, RIGHT"
Overlap = 0.5mm or more
Printhead
(Nose face)
"CLEANER, HEAD"
Figure 4-3. “CLEANER, HEAD” Overlap
Rev. A
4-
Loading...