Adjustment Items And Overview; Servicing Adjustment Item List - Epson Stylus C87 Service Manual

EPSON Stylus C87/C88/D88

5.1 Adjustment Items and Overview

This chapter describes adjustments to be made after the disassembly/reassembly of this product.
In case that any parts are removed and assembled on the repair
C H E C K
P O I N T
product while running the Adjustment program, make sure to
turn off the printer.

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 setting At the time of Main board replacement, this adjustment is
made to write the board common information on a
destination basis.
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.
Offset input for When the Main board, CR motor, PS board or Print head
CR motor assy is changed individually, this adjustment is made to
calorific write the maximum offset to prevent the occurrence of
limitation. damage to the 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 adjustment This adjustment is made to correct the variations of paper
feed accuracy in the band printing mode to improve print
quality.
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.
Adjustment Items and Overview
Method Outline
Revision A
Used
Tool
Media
Exclusive Non-target
servicing program
Exclusive Non-target
servicing program
Exclusive Non-target
servicing program
Exclusive Photo
servicing program Quality Ink
Jet Paper
(A4)
Exclusive Photo
servicing program Quality Ink
Jet Paper
(A4)
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