Epson CX4400 - Stylus Color Inkjet, Service Manual

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EPSON Stylus CX4300/CX4400/CX5500/CX5600/DX4400/DX4450 Revision A
ADJUSTMENT Adjustment Items and Overview (T.B.D) 101
5.1 Adjustment Items and Overview (T.B.D)
This chapter describes adjustments necessary after the disassembly/reassembly of the printer.
5.1.1 Servicing Adjustment Item List (T.B.D)
The adjustment items of this product are as follows.
Table 5-1. Adjustment Items (T.B.D)
Function Item Purpose Method Outline Tool
Adj
ustme
nt Ite
m
s
EEPROM data copy
This function is used to read the necessary data from the EEPROM
of the faulty Main Board and write them to the new Main Board in
order to reduce the auxiliary adjustment items at the time of Board
replacement.
With the old Board installed, use the adjustment program to read out
and memorize the EEPROM data, and after exchanging with the new
Board, load the memorized data.
• Adjustment
Program
Initial settings
At the time of Main Board replacement, this adjustment is made to
write the Board common information on a destination basis. Use the adjustment program to write the Board information on a
destination basis to the Main Board. • Adjustment
Program
Head ID Input
At the time of Printhead replacement, this adjustment is made to
register the head manufacturing variations correction ID to the
printer. Use the adjustment program to input the Head QR Code label ID stuck
on the Printhead. (Supplement: Read the QR code label from left to
right on the top row and then from top to bottom in due order.) • Adjustment
Program
TOP Margin Adjustment Adjust to make the Top Margin the value you wish.
Use the adjustment program, to print the Top margin adjustment
pattern, measure the distance from Paper top edge to the TOP line, and
adjust so that it becomes within 3
± 1mm.
• Adjustment
Program
• Rule
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
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
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
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
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