Epson Stylus Photo 1390 - Page 133

EPSON Stylus Photo 1390/1400/1410 Revision B
ADJUSTMENT Adjustment Items and Overview 133
First Dot Position To adjust the print starting position in the CR main scanning direction. 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.
PW Sensor Adjustment 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.
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.
PF Deterioration
Compensation Counter
Reset
The deterioration amount of the PF Roller Shaft is reflected to 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.
1. Select and execute this function in the Adjustment Program.
2. Reset the PF deterioration counter.
Reset PF deterioration
counter (write the
maximum value)
The PF deterioration compensation counter can be reset only 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.
1. Select and execute this function in the Adjustment Program.
2. Reset the PF deterioration counter.
PF Adjustment To carry out correction 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.
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
Main Board.
PF Adjustment
(Bottom Margin)
To carry out correction when the actual paper feed amount differs greatly
from the theoretical value due to paper slip, exit roller tolerances, etc.
while printing on the bottom of paper.
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
Main Board.
CR Motor Drive Dispersion To measure the manufacturing variations of the CR Motor and PS Board
to make the most of the motor capabilities for motor heat generation
control.
1. Select/execute this function in the Adjustment Program.
2. After the execution, the variations are automatically measured and the measurement values
are written to the EEPROM on the Main Board.
CR Motor Drive Dispersion
(Maximum value)
CR Dispersion Measurement can be performed only when the Carriage
Shaft is new. To reduce the ancillary work in servicing, enter the worst
value (on which heat generation limit is easily imposed) if the Carriage
Shaft has not been replaced.
1. Select/execute this function in the Adjustment Program.
2. After the execution, the dispersions are automatically measured and the worst value is written
to the EEPROM on the Main Board.
Table 5-1. Adjustment Items
Adjustment Purpose Method Outline