Epson Stylus Photo R1900 Service Manual page 139

EPSON Stylus Photo R1900/R2880/R2000
Adjustment
Multi Sensor Adjustment This adjustment is made to correct a detection position error,
(Ink Mark Sensor which is caused by the displacement of the Ink Mark Sensor
Adjustment) mounting position, on a software basis.
Bi-D adjustment This adjustment is made to correct the print timing in the go and
return paths in bi-directional printing.
First dot position This function adjusts the print starting position in the CR main
adjustment scanning direction.
PW adjustment This adjustment is made to correct the PW Sensor mounting
position on a software basis to improve a paper detection error
caused by the variation of the mounting position.
Initialize PF The deterioration amount of the PF Roller Shaft is reflected to
deterioration offset the paper feed correction amount. Every time a sheet of paper is
fed, the deterioration amount is counted on the basis of the
original counter value setting.When the PF Roller Shaft or
Printer Mechanism has been replaced during repair, the PF
deterioration counter must be reset.
Disenable PF The PF deterioration compensation counter can be reset only
deterioration offset when the PF Roller Shaft is new. To reduce the ancillary work in
servicing, enter the maximum value (value for which
deterioration compensation is not made) if the PF Roller Shaft
has not been replaced.
PF adjustment This correction is made when the actual paper feed amount
differs greatly from the theoretical value due to paper slip, PF
roller tolerances, etc. during paper feed for printing.
PF adjustment (Bottom This correction is made when the actual paper feed amount
Margin) while printing on the bottom of paper differs greatly from the
theoretical value due to paper slip, exit roller tolerances, etc.
Colorimetric calibration This adjustment is made to adjust the ink discharge amount.
Adjustment
Table 5-1. Adjustment Items
Purpose
1. Select and execute this function in the Adjustment Program.
2. Pattern printing and adjustment are automatically executed.
Supplement: Be sure to confirm that there are no dots missing before executing this adjustment.
1. Select and execute this function in the Adjustment Program.
2. Pattern printing and adjustment are automatically executed.
Supplement: Be sure to confirm that there are no dots missing before executing this adjustment.
1. Select this function in the Adjustment Program and print the adjustment pattern.
2. Select a pattern number 5mm away from each edge, and enter that number in the program.
3. The correction value is saved to the specific EEPROM address of the Main Board.
1. Select this function in the Adjustment Program and print the adjustment pattern.
2. Select a pattern number 5mm away from each edge, and enter that number in the program.
3. The correction value is saved to the specific EEPROM address of the Main Board.
1. Select and execute this function in the Adjustment Program.
2. Reset the PF deterioration counter.
1. Select and execute this function in the Adjustment Program.
2. Reset the PF deterioration counter.
1. Select this function in the Adjustment Program and print the adjustment pattern.
2. Select or measure the adjustment value, and write it to the specific EEPROM address on the
1. Select this function in the Adjustment Program and print the adjustment pattern.
2. Select or measure the adjustment value, and write it to the specific EEPROM address on the
See
Adjustment Items and Overview
Method Outline
Main Board.
Main Board.
"5.2.4 Colorimetric Calibration" (p.153).
Revision E
139
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