Epson SC-F9200 Series Service Manual page 275

SC-F9200 Series
Class Adjustment Items
Correct inclination of the Print Head in the CR
Head inclination manual direction. Print an adjustment pattern, and
adjustment visually check the pattern to see if the adjustment
(CR direction) is needed. To correct the head inclination, turn
the cam.
Correct slant of the Print Head in the PF
direction. An adjustment pattern is printed and
Head slant auto the IM Sensor scans the pattern. Based on the
adjustment scanned result, a number of steps to move the
(PF direction) lever for the adjustment is displayed. Move the
lever the number of steps to correct the head
slant.
To make the setting not to use the Head 2 nozzles
Manual Adjustment for
that overlap with the Head 1 nozzles in the sub-
Head Data Shift
scanning direction.
related
Manual Uni-d Correct the variation of the landing positions
Adjustment for Between between the Head1 and Head2 in the CR
2pcs heads scanning direction.


Ink Mark Sensor check &
Auto Adjustment

ADJUSTMENT
Table 4-2. Adjustment Items
Overview
Check if the Ink Mark Sensor has any trouble/
connection failure.
Execute IMS Position Auto Correction
(pattern detecting position correction).
Correct the detecting position of the print
pattern in the sub scan direction and the main
scan direction.
Run the nozzle check and to confirm whether
the Ink Mark Sensor detects the nozzle
clogging properly.
Symptoms that the Adjustment is Needed
If this adjustment is not made, print quality
problems such as misaligned lines, grainy image,
banding, or color unevenness may occur in the
scale of Print Head surface area.
If this adjustment is not made, the gap between
the Print Head surface and paper is kept uneven
(e.g.: the gap at the front side is wider than that at
the rear side), and causes irregularity in size and
position of printed dots. This may be observed as
print quality problems such as grainy image,
banding, or color unevenness.
---
If the variation is not corrected, misaligned
landing positions may cause print quality
problems such as misaligned lines, grainy
images, or banding.
If the IMS does not work properly, automatic
adjustments such as Manual Bi-D Adjustment
cannot be executed normally.
Overview
Service
Printer Mode Jig Media
Program
Normal
√
PGPP
mode
Normal
√
PGPP
mode
Normal
√
PGPP
mode
Normal
√
PGPP
mode
Normal
√
PGPP
mode
SE Group Confidential (Related Staff Only)
Revision C
Page
p.314
p.319
p.321
p.323
p.303
275