Adjustment Items And Overview; Servicing Adjustment Item List - Epson Stylus C67 Service Manual

EPSON Stylus C67/C68/D68

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.
Function Item
Market At the time of Main board replacement, this adjustment is made
setting to write the board common information on a destination basis.
Head ID At the time of head replacement, this adjustment is made to
input correct head manufacturing variations and eliminate the
individual differences of print quality.
Offset input When the Main board, CR motor, PS board or Print head assy is
for CR motor changed individually, this adjustment is made to write the
calorific maximum offset to prevent the occurrence of damage to the
limitation. motor at the time of CR motor heat generation.
Head angular This adjustment is made to correct the error in the Head
adjustment mounting position (angle of the Head to the paper surface) to
keep the nozzle intervals uniform in the CR main scanning
direction.
PF This adjustment is made to correct the variations of paper feed
adjustment accuracy in the band printing mode to improve print quality.
Bi-D This adjustment is made to correct the print timing in the go and
adjustment return paths in bi-directional printing.
ADJUSTMENT
Table 5-1. Servicing Adjustment Items
Purpose
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.
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.)
Select and execute this function in the exclusive servicing program to save
the offset into the EEPROM.
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.
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.
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.
Adjustment Items and Overview
Method Outline
Revision A
Used
Tool
Media
Exclusive servicing Non-target
program
Exclusive servicing Non-target
program
Exclusive servicing Non-target
program
Exclusive servicing Photo
program Quality Ink
Jet Paper
(A4)
Exclusive servicing Photo
program Quality Ink
Jet Paper
(A4)
Exclusive servicing Plain paper
program (A4)
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