Epson 3800 - Stylus Pro Color Inkjet Printer, Service Manual

Page: 205 / 286

EPSON Stylus Pro 3800/3800C/3850 Revision A
ADJUSTMENT Standard Adjustment 205
5.3.3 Print Head Slant Adjustment (PF)
†
Purpose
Check the print head for slanting in the PF direction and corrects if slanted.
†
Paper Used
„
Size: A4/Letter
„
Type: Enhanced Matte Paper (US)/
Archival Matte Paper (Europe, Asia)
†
Procedure
1. Remove the HOUSING, UPPER.
2. Remove the COVER, CR.
3. Attach the OPERATION, PANEL, ASSY to the printer and connect the FFC
cable.
4. Turn the printer ON.
5. Start up the Adjustment Program and select [Print Head Slant Adjustment
(PF)].
6. Select [Visual pattern], and click [Print] to print the adjustment pattern.
7. Examine the printout patterns with print start side facing downward, measure
the top (A) and bottom (B) gaps between adjacent blocks using a calibrated
magnifying glass.
According to the measurement result, follow the instructions below.
z
A = B (Pattern2):
Click [Next] twice and then click [Run] in order to move the carriage unit
to its home position. Then, click [Finish] on the next screen to finish the
adjustment.
z
A > B, or A < B (Pattern 1, 3):
Click [Next], and start adjustment on the next screen
o
to Step 8
8. Slightly turn the Head Slant Lever left and right to correct the slant of the print
head.
z
A < B (Pattern 1): Turn the Head Slant Lever counterclockwise.
z
A > B (Pattern 3): Turn the Head Slant Lever clockwise.
9. Click [Back] to return to the previous screen. Repeat Step 6 to Step 8 until the
correct result is obtained.
Figure 5-15. Adjustment Pattern and Check Point
C H E C K
P O I N T
When removing the HOUSING, UPPER, do not remove the LOCK,
COVER, ASSY. Keep the ink cover closed and turn the ink cover
open sensor ON.
PF_Slant_Pattern_01
Paper
Feed
Paper ejecting
direction
Pattern 1 (A<B)
Pattern 2 (A=B)
Paper
A
Pattern 3 (A>B)
<Adjustment Pattern>
<Check Point>
B
A
B
A
B
Paper
Paper
<Adjustment direction>