Service manual

EPSON Stylus Photo R340/350 Revision A
Adjustment Adjustment by using adjustment program 103
Table 3-3. Maintenance Functions
Function Item Purpose Adjustment Outline 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 to perform a power cleaning. Non-target
Ink Charge This must be carried out after replacing the Print Head to full
fill the ink path inside the new Print Head with ink (make the
all nozzles ready for print) by ejecting the liquid preset in the
ASP Print Head.
Select this function to execute the ink sucking operation equivalent to the Initial
Charge.
Non-target
Check/Reset
Protection Counter
Check the current protection counter and reset the counter
when it has reached or come close to the upper limit. The
Waste Ink Pad must be replaced when the counter is cleared.
Select this function to read/display the current data from the specific EEPROM
address on the Main Board, and check whether the current counter value is close
to the upper limit or not.
For the reset function, select this function in the exclusive servicing program after
Waste Ink Pad replacement, and reset the corresponding data at the specific
address in the EEPROM on the Main Board.
Non-target
EEPROM Data
Copy
This function is used to read the above necessary
information from the EEPROM of the faulty Main Board
using the D4 function to reduce the auxiliary adjustment
items at the time of Board replacement.
Select this function to read the data from the faulty board. After that, change the
Main Board and then write the read data to a new board.
Non-target
Table 3-4. Check Pattern Printing
Function Item Purpose Adjustment Outline Used Media
Check pattern items
A4 Normal Paper
Print
This pattern is used to check whether adjustment results are
normal.
Select this function to print the print patterns, and check the adjustment result in
each pattern.
Plain paper (A4)
A4 Photo Quality
Ink Jet Paper Print
This pattern is used to check whether adjustment results are
normal.
Select this function to print the print patterns, and check the adjustment result in
each pattern.
Photo Quality Ink
Jet Paper (A4)
A4 Photo Paper/
Glossy Photo Paper
Print
This pattern is used to check whether adjustment results are
normal.
Select this function to print the print patterns, and check the adjustment result in
each pattern.
Glossy Photo
Paper (A4)
CD-R Print Check if the center position of CDR is correct. Print the print patterns and check the patterns for any displacement. Dummy CD
Sheet
Nozzle Check
Pattern Print
This pattern is used to check simply whether all nozzles
deliver ink or not.
Print the print patterns and check the patterns for any displacement. Plain paper (A4)