Epson Stylus C67 - Adjustment Items and Overview; Servicing Adjustment Item List

EPSON Stylus C67/C68/D68 Revision A
ADJUSTMENT Adjustment Items and Overview 77
5.1 Adjustment Items and Overview
This chapter describes adjustments to be made after the disassembly/reassembly of this product.
5.1.1 Servicing Adjustment Item List
The adjustment items of this product are as follows. For details of the adjustment items, refer to the detailed procedures and sketches of the adjustment items.
Table 5-1. Servicing Adjustment Items
Function Item Purpose Method Outline Tool
Used
Media
Main adjustment items
Market
setting
At the time of Main board replacement, this adjustment is made
to write the board common information on a destination basis.
Select and execute this function in the exclusive servicing program to save
the following data into the EEPROM.
Market ID, CSIC printer ID, D4 setting (USB, parallel), First Dot
adjustment fixed value.
Exclusive servicing
program
Non-target
Head ID
input
At the time of head replacement, this adjustment is made to
correct head manufacturing variations and eliminate the
individual differences of print quality.
Enter the ID of the head QR code label applied to the Printhead into the
exclusive servicing program to save it to the EEPROM on the Main board.
(Supplement: Read the QR code label from left to right on the top row and
from top to bottom in due order.)
Exclusive servicing
program
Non-target
Offset input
for CR motor
calorific
limitation.
When the Main board, CR motor, PS board or Print head assy is
changed individually, this adjustment is made to write the
maximum offset to prevent the occurrence of damage to the
motor at the time of CR motor heat generation.
Select and execute this function in the exclusive servicing program to save
the offset into the EEPROM.
Exclusive servicing
program
Non-target
Head angular
adjustment
This adjustment is made to correct the error in the Head
mounting position (angle of the Head to the paper surface) to
keep the nozzle intervals uniform in the CR main scanning
direction.
Select this function in the exclusive servicing program and print the
adjustment pattern. Check the displacement amount of the pattern. Print
the exclusive pattern again and adjust the displacement amount.
Exclusive servicing
program
Photo
Quality Ink
Jet Paper
(A4)
PF
adjustment
This adjustment is made to correct the variations of paper feed
accuracy in the band printing mode to improve print quality.
Select this function in the exclusive servicing program and print the
adjustment patterns (9 patterns). Select and enter the pattern that has the
smallest gap and overlap. The correction value is saved to the specific
EEPROM address on the Main Board.
Exclusive servicing
program
Photo
Quality Ink
Jet Paper
(A4)
Bi-D
adjustment
This adjustment is made to correct the print timing in the go and
return paths in bi-directional printing.
Select this function in the exclusive servicing program and print the
adjustment patterns to check the displacement amounts of the patterns.
Select/enter the pattern number that has the smallest displacement amount
in the program. Print the exclusive patterns again and adjust the
displacement amount. The correction value is saved into the EEPROM.
Exclusive servicing
program
Plain paper
(A4)