Epson Stylus Photo R220 - Page 83

EPSON Stylus Photo R220/R230 Revision A
ADJUSTMENT Adjustment Items and Overview 83
Main Adjustment items
First Dot
Adjustment
This adjustment is made to correct the First Dot Position in the
CR main scanning direction.
Select and execute this function in the exclusive servicing program.
Enter the correction value in the program using the rule position of the
print pattern as a reference. The correction value is saved to the specific
EEPROM address on the Main Board.
Exclusive
servicing
program
Plain paper
(A4)
CR Motor
Deviation
Correction
When the Main Board, CR Motor or PSB/PSE Board is replaced
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.
However, when the CR Guide Shaft is replaced together with the
above part, this adjustment is made to measure the manufacturing
variations of the CR Motor and PSB/PSE Board, utilize the motor
capability to the maximum for motor heat generation control, and
prevent the motor from being damaged by 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
Table 3-2. Maintenance Functions
Function Item Purpose Adjustment 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 or skewed
injection. This function is used together with the Nozzle Check
Pattern to confirm the Cleaning effects.
Select this function in the exclusive servicing program, and execute
Cleaning 3 (CL 3).
Exclusive
servicing
program
Non-target
Ink Charge This function is used to drain the Shipping Liquid in the ASP
Print Head flow path and simultaneously fill ink in the head flow
path to make all nozzles printable and stabilize the ink in the
Print Head.
Select this function in the exclusive servicing program, and execute the
ink sucking operation equivalent to the Initial Charge.
Exclusive
servicing
program
Non-target
Table 3-1. Adjustment Items
Function Item Purpose Method Outline Tool Used Media