Epson Stylus C58/C59/ME 2/C79/D78/C90/C91/C92/D92/T20/T20E/T23/T26/S20/T10/T11/ME 30/T21/T24/T27/S21 Revision E
ADJUSTMENT Adjustment Items and Overview 71
Confidential
Adjustment Items
Head angular adjustment
Adjust the vertical/horizontal tilt that occur
when installing the Head, by the software.
Use the adjustment program to print the adjustment pattern and
adjust to meet the standard.
• Adjustment
Program
A4
(Plain paper)
Bi-D adjustment
This adjustment is made to correct the print
timing in the go and return paths in bi-
directional printing.
Use the adjustment program to print out the adjustment pattern,
and enter the adjustment value of the printed pattern with no
black/white streaks in the block.
Adjustment items are, each dot sizes (ECO/VSD1/VSD2/
VSD3) x Colors (Black/Color), total of 8 types.
• Adjustment
Program
A4
(Plain paper)
First dot adjustment
Correct the print timing by the software to
make the start printing position of the main
scan direction to the value you wish.
Use the adjustment program to print the adjustment pattern and
enter the adjustment value of printed position 5mm from the left
edge.
• Adjustment
Program
• Rule
A4
(Glossy paper)
PF Band adjustment
This adjustment is made to correct the
variations of Mechanism, or the paper feeding
accuracy.
Use the adjustment program to print out the adjustment pattern,
evaluate the pattern based on the criteria, and register the
appropriate adjustment value to the printer.
• Adjustment
Program
A4
(Plain paper)
CR heat protection control
Assuming production variation of the CR
Motor and the PS Board, operate this to use the
motor capacity to the maximum when the CR
Motor generates heat.
Select the replaced parts in the adjustment program, then
operate this adjustment to automatically write the appropriate
adjustment value.
• Adjustment
Program
--
Table 5-2. Maintenance Items
Function Item Purpose Method Outline Tool Used Media
Maintenance Items
Head Cleaning
This function is used to execute Cleaning
efficiently when ink is not delivered from the
Head properly, e.g. dot missing.
Use the adjustment program to execute Cleaning, then execute
nozzle check printing.
• Adjustment
Program
A4 / Letter
(Plain Paper)
Ink charge
When replacing the Head, this function is used
to fill ink in the flow path of the Head in the
ASP to make all nozzles printable and stabilize
the ink in the Printhead.
Use the adjustment program to execute ink charge, then
execute nozzle check printing.
• Adjustment
Program A4 / Letter
(Plain Paper)
Waste ink pad counter read out/
Initialization
Initialize the Waste ink pad counter for
replaced parts after maintenance error
occurred. Also, when counter full is close, pad
exchange/counter initialization may be
executed to prevent re-fixing.
After exchanging the Waste ink pad, initialize the counter by
the adjustment program.
• Adjustment
Program
--
Table 5-1. Adjustment Items
Function Item Purpose Method Outline Tool Used Media
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