Epson 2200 - Stylus Photo Color Inkjet Printer Service Manual page 189

EPSON Stylus PHOTO 2100/2200
Function Item
Head angular This adjustment is made to correct the error in the
adjustment Head mounting position (angle of the Head to the
print surface) to keep the nozzle intervals uniform
in the main scanning direction.
PF adjustment This adjustment is made to correct the variations of
paper loading accuracy in the band printing mode
to improve print quality.
PW sensor This adjustment is made to correct the mounting
adjustment position of the PW sensor on a software basis to
minimize the paper detection error caused by the
variations of the mounting position.
Bi-D adjustment This adjustment is made to correct the print timing
in the go and return paths in bi-directional printing.
Pixel shift adjustment This adjustment is made to correct the variations of
the ink injection speeds of the Nozzle lines in VSD
4 printing to reduce the displacements of the image
in high resolution.
CR timing belt This adjustment is made to prevent a tooth skip
tension adjustment between the CR motor and Timing belt, which
occurs with the increased size of the CR, in order to
optimize the Timing belt tension.
ADJUSTMENT
Table 5-1. Servicing Adjustment Items
Purpose
Select this function in the exclusive servicing program and print the
adjustment pattern. Check the displacement amount of the pattern and
move the Adjust lever on the right side face of the CR unit as required.
Print the exclusive pattern again and adjust the displacement amount.
Select this function in the exclusive servicing program and print the
adjustment patterns (9 patterns). Select and enter the pattern number that
has the smallest gap and overlap. The correction value is saved to the
specific EEPROM address on the Main board.
Select this function in the exclusive servicing program and print the
adjustment patterns. Select the pattern number 5mm away from each edge,
and enter that number in the program. The correction value is saved to the
specific EEPROM address on the Main board.
Select this function in the exclusive servicing program and print the
adjustment patterns to check the displacement amounts of the patterns.
Select/enter the pattern number that has the smallest displacement amount
in the program. Print the exclusive patterns again and adjust the
displacement amount. The correction value is saved into the EEPROM.
In the VSD 4 mode, select the pattern that has the smallest displacement
amount from the printed rule patterns per line, and enter it into the
program. The correction value is saved into the EEPROM.
Insert a thickness gauge (0.3mm or less) between the Pulley frame and
Fixing plate and secure the Fixing plate.
Adjustment Items and Overview
Method Outline
Revision B
Used
Tool
Media
• Exclusive servicing
Photo
program
Quality Ink
• Adjust lever built in Jet Paper 2
the CR unit (A4)
Exclusive servicing Plain Paper
program (A4)
Exclusive servicing Plain Paper
program (A4)
Exclusive servicing Photo
program Quality Ink
Jet Paper 2
(A4)
Exclusive servicing Photo
program Quality Ink
Jet Paper 2
(A4)
Thickness gauge Target
0.3mm
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