Epson Stylus Photo R1800 - Page 131

EPSON Stylus Photo R1800/R2400 Revision B
Adjustment Adjustment Items and Overview 131
Reset the 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 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.
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)
This correction is made when the actual paper feed
amount while printing on the bottom of paper differs
greatly from the theoretical value due to paper slip, exit
roller tolerances, etc.
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.
Colorimetric
Calibration
This adjustment is made to adjust the ink discharge
amount.
See Section 5.2.4 on page 147.
CR Motor Drive
Dispersion
This adjustment is made 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 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 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