Epson Stylus Photo R2000s Series Service Manual page 212

Stylus Photo R1900/R2880/R2000/R2000s/SC-P400 Series
Adjustment
Main Head ID input
adjustment
Head angular
adjustment
Bi-d adjustment
PW adjustment
PF/EJ adjustment
CR motor heat
protection control
PF motor heat
protection control
Factory settings
SC-P400 Series
Table 9-7. Servicing Adjustment Item List
Purpose
When replacing the printhead, reduces head
manufacturing variations, which may cause individual
differences in print quality.
Corrects the error in the printhead mounting position
(head angle) on a software basis to maintain the print
quality.
Corrects the print timing in the go and return paths in bi-
directional printing.
Corrects the PW sensor mounting position on a software
basis to improve the error in paper detection caused by the
variation of the mounting position.
When the actual paper feed amount differs greatly from
the theoretical value due to paper slip, PF roller
tolerances, etc. when feeding paper during printing.
Measures and corrects the electrical variation of the CR
motor and the power supply board.
Measures and corrects the electrical variation of the PF
motor and the power supply board.
Configures the settings for cleaning to be carried out at the
next power-on. Also, deletes the fatal error history.
Method Outline
1. Select this function in the adjustment program.
2. Enter the ID of the Head QR Code Label (29 digits) applied
on the printhead.
1. Select this function in the adjustment program.
2. Print the pattern and check the misalignment, and then
enter the number of the least misaligned pattern (band,
raster offset)
1. Select this function in the adjustment program.
2. Print the pattern and enter the number of the pattern
without any lines on the block.
1. Select this function in the adjustment program.
2. Enter the number of the patterns 5 mm away from each
edge.
3. Enter the number of pattern that overlaps on the vertical
line on the left in the first dot position box.
1. Select this function in the adjustment program.
2. Print the pattern and enter the number of the pattern
without any lines on the block.
1. Select this function in the adjustment program.
2. The variations are measured and the measurement values
are written to the EEPROM on the Main Board
automatically.
3. Restart the printer.
1. Select this function in the adjustment program.
2. Correction value is automatically calculated and written in
the main board.
1. Select this function in the adjustment program.
2. Carry out the adjustment.
Adjustment
Revision I
Remarks
The correction value is not
reflected in the reprinted
pattern even if the selected
number is entered.
If you enter the selected
number and print the pattern
again, the pattern with the
selected number comes in the
center.
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