Epson R2000 Service Manual

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment 151
Confidential5. Set the jig in place on the PF Roller Shaft as shown in the figure below.
Left side:  Inside of PF Roller left end (E-ring)
Right side: Clearance between PF Roller right end (Right Bushing 8) and left 
end of Upper Paper Guide
Center:  Clearance between the 2nd Upper Paper Guide and 3rd one from 
the left
Figure 5-15. Setting the PF Roller Shaft Position Adjustment Jig (2)6. Turn the Center Support Bushing Cam so that the long hand position is +30 from 
the “0” adjustment position.
7. Tighten the Center Support Bushing Cam and the Center Support Bushing with the 
screws.
The following page shows print samples when adjustment of the PF Roller Shaft Center 
Support Positions are inside and outside the specified value range. 

Check for any dirt on the PF Roller Shaft when performing the 
following procedure.







Standard Value: 30 ± 50m
Adjustment Resolution: 50

+30 must be set to compensate for the thickness of the coating 
on the PF Roller Shaft.
Make sure that the position of the short hand is the same as at 
“0” adjustment.



The figure below shows the positional relationship between the 
Center Support Bushing Cam and the Dial Gage.
Figure 5-16. Positional Relationship between Center Support 
Bushing Cam and the Dial Gage

Check the adjustment value again as it deviates slightly when the 
screw is tightened.
 down
 up
Center Support 
Bushing Cam 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment 152
Confidential
Figure 5-17. Outside the Specified Value Range Figure 5-18. Inside the Specified Value Range
Unevenness 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment 153
Confidential5.2.4  Colorimetric CalibrationThis calibration is performed to compensate the ink discharge amount when the 
following parts are replaced:
Print Head
Main Board
PS Board
The following tools are used for this adjustment:
Archival Matte Paper/Enhanced Matte Paper (A4 or letter-size): 
1 sheet (for printing Calibration Chart)
Plain paper (A4 or letter-size): 1 sheet (for checking the nozzles)
PC (OS: Windows XP/Me/2000/98)
The following drivers must be installed on the PC:

Printer Driver for the model to be adjusted

USB Driver for the Calibrator
Calibrator (GretagMacbeth Eye-One with a UV filter)

Scanning ruler (supplied with the Calibrator)

Calibration plate that contains a white reference tile
(Calibrator accessory)
Colorimetric Calibration Tool (program)
Black paper (A4 size or larger) (A paper printed in solid black can also be 
used.)
Figure 5-19. The Calibrator and the Accessories
5.2.4.1  Overview of the Colorimetric CalibrationPurpose
Measuring the color of the ink discharge amount information and registering/
controlling this information improves calibration accuracy and ensures consistent 
color quality.
To reduce unit-to-unit and mode-to-mode variations in color.
To improve the accuracy of the Ink Counter.
The Color ID can improve the Ink Counter accuracy, which reduces the 
running cost of ink.
Colorimetric Calibration Technology
The Principle
The ink discharge amount characteristic of a printer is measured by measuring 
color difference (L*a*b*) of a printed chart with a calibrator. Created Color 
ID information based on the obtained L*a*b values is stored on the printer. 
When printing, the printer sends the Color ID to the printer driver to 
compensate the number of ink droplets (dot generation rate) for each of nine
1 
different sized droplets of each color. This method allows mass-produced 
printers to provide consistent print quality reducing unit-to-unit variation.
Example: Compensation of Ink Amount Ejected from a Print Head
               (dot generation rate)

When the standard printer generates ten dots.
If the ink discharge amount is insufficient by 10%, this is compensated by 
generating 11 dots. 
Note 1: Three different sized droplets (small, medium, large) for each of three 
waveforms (VSD1, 2, 3)
Head ID
In the conventional color calibration with a Head ID, the print head 
characteristics (weight of discharged ink) are measured and compensated. The 
following shows the correlation between conventional Head ID adjustment 
and Colorimetric Calibration.
Calibrator Scanning RulerWhite 
Reference 
Tile
Calibration Plate



As color measurement is performed with the fully assembled 
product, the electrical characteristics which are unique to each 
Main/Power Board are also compensated in addition to the Print 
Head. 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment 154
Confidential
Supplement: Regarding remaining ink amount
When the Ink Counter detects ink out, a certain amount (safety margin) of ink is 
still remaining in the cartridge to prevent the print head from damages caused by 
printing without ink. This safety margin is important especially for a printer that 
discharges larger amount of ink.
The figure below illustrates the concept of this safety margin.
Figure 5-20. Concept of Remaining Ink Amount Table 5-6.The Difference in Calibration Method between Head ID and 
Colorimetric Calibration.
Conventional Head ID adjustment
Colorimetric Calibration
In the print head manufacturing 
process, ink discharge amount of each 
head is actually measured to get 
individual characteristic information. 
The information is stored on the printer 
as Head ID to control the print head.By printing and measuring a color 
chart, a variation from the standard 
machine is obtained and registered as 
the correction value (Color ID) to 
control the amount of ink droplets.

Before performing Colorimetric Calibration, the conventional 
Head ID must be pre-registered. This is because the Head ID 
contains information to create a waveform to drive the head, which 
is also required for the Colorimetric Calibration.

If you do not perform Colorimetric Calibration after performing 
Head ID adjustment, the printer will be controlled only by the Head 
ID, which affects the following.
Ink Counter
The ink consumption counter table switches from the table for 
Color ID to the one for Head ID. This change causes an ink out 
error to occur 2 to 5 percent earlier than when using the table 
for Color ID. 
Color Quality
Color quality will be at the same level as that of printers 
adjusted by the conventional Head ID, and the same color 
quality as mass-produced printers cannot be maintained.
100%
100%
Actual ink amount
Ink counter amount
Printer A 
Ink discharge amount is low
Printer B 
Ink discharge amount is standard
Printer C 
Ink discharge amount is high
Remaining amount of ink when the 
counter shows ink out.Margin amount of ink 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment 155
Confidential5.2.4.2  Adjusting Method of the Colorimetric CalibrationThe following illustrates the overall workflow.
Figure 5-21. Overall Workflow1. Connect the printer and the calibrator with the PC to which the Colorimetric 
Calibration Tool for the printer is installed using USB cables. Then turn the printer 
on.
2. Start up the Colorimetric Calibration Tool.
3. Load one sheet of A4 or letter-size plain paper, and click “Next” to print a nozzle 
check pattern.
4. Check the printed nozzle check pattern.
When there are broken lines or missing segments
Run a head cleaning from the printer driver, then reprint a nozzle check 
pattern and check it.
When there are no broken lines or missing segments
Click “Next” to go to the Calibration Chart print screen.
Figure 5-22. Printing and checking a nozzle check pattern



The Color ID Calibration Chart is designed to be printed in a 
completely non-compensated state. Therefore, there is no need to 
delete an existing Color ID from EEPROM when printing out a 
Calibration Chart.
Printing of a Calibration ChartUSB ID / printing date/time / nozzle check patternDrying of the Calibration Chart (five minutes)
Confirmation of USB ID / printing date/time
Measure the Calibration Chart.
Convert the color values (Lab) to Color ID 
from color measurement data.
Write the Color ID to a printer. Printing of a nozzle check pattern
Head cleaning Remove each ink cartridge, and shake it 
four or five times, then reinstall it. Connect the printer and calibrator to the PC, 
and start the Colorimetric Calibration Tool.
The Colorimetric Calibration Tool 
performs this process automatically.
START
END OKNG



Install the printer driver for Stylus Photo R1900/Stylus Photo 
R2880 and USB driver for the calibrator to the PC in advance.
To prevent inks from settling down at the bottom, remove the 
ink cartridges, and shake them four or five times, then reinstall 
them to the printer before starting.



If there are broken lines or missing segments, repeat the head 
cleaning until they are eliminated. 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment 156
Confidential5. Load one sheet of A4 or letter-size Archival Matte Paper/Enhanced Matte paper to 
print the Calibration Chart.
Figure 5-23. Printing a Calibration Chart
Figure 5-24. Illustration of Calibration Chart6. After the Calibration Chart is printed, allow it to dry for five minutes. During this 
time, check the nozzle check pattern on the chart. If there are broken lines or 
missing segments, click [Print Calibration Chart again], and return to Step 5. If 
there are no broken lines or missing segments, click [Next].
Figure 5-25. Drying the Chart
7. Connect the Calibrator to the PC and click [Color Measuring]. The color 
measurement procedure screen operated by the Calibrator control plug-in (DLL) is 
displayed on screen overlapping the Colorimetric Calibration Tool.
Figure 5-26. Color Measurement



The recommended air temperature range for printing a Calibration 
Chart is 15°C to 28°C.
2007-09-21 16:07 ( GMT 2007-09-21 07:07)
USBID:3030334852469D2F58 OS:Win BlackInk:Photo/Matte
Printer:EPSON PX-G5300 2007-09-28 16:02 ( GMT 2007-09-28 07:02)
126 calibration patches
Nozzle check pattern Print TimeUSB ID (18 alphanumeric digits) + OS + Black ink typeColor measurement limit time(7 days after the print time) Product name (R1900/R2880)



If there are broken lines or missing segments observed in the nozzle 
check pattern for the Gross Optimizer, there’s no need to reprint 
the check pattern.
When there are broken lines or 
missing segments 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment 157
Confidential8. Place the Calibrator on the calibration plate, and click [Calibrate]
Figure 5-27. Preparing the Calibrator
9. After confirming that you are within the color measurement time limit, place the 
Calibration Chart sheet on a black paper, put the scanning ruler on the Chart sheet, 
then click [OK].
Figure 5-28. Preparing the Calibration Chart10. Follow the on-screen messages to measure the Chart. After the color measurement 
is finished, click [OK].
Figure 5-29. Starting the Color Measurement

The white reference tile on the calibration plate should be clean. 
Clean off any dirt with alcohol or other organic solvent.
The calibration plate and the Calibrator are used as a pair. Do 
not use a calibration plate supplied with an another Calibrator.
2007-09-21 16:07 ( GMT 2007-09-21 07:07)
USBID:3030334852
Printer:EPSON PX 2007-09-28 16:02 ( GMT 2007-09-28 07:02)
Calibration Chart
Check the 
time here.
Color measurement 
“completed” rowsPatches in the completed rows are displayed in colors created 
according to the measurement result.
Color measurement 
“not completed” rowsRows that have not been measured are displayed in pale color.
Arrow Indicates the start position of color measuring.
Cursor Automatically moves up when color measurement of a row is 
completed.
Scroll buttons Scroll the cursor up or down. (These buttons are available for 
already measured rows or the row currently being measured.)
This button is 
enabled after color 
measurement is 
completed. Color Patch grid
21
3
5
4 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment 158
Confidential11. Click [Next], and write the Color ID to the printer. After the writing has finished, 
the Colorimetric Calibration Tool automatically checks the Color ID.
Figure 5-30. Writing of Color ID12. When the following screen is displayed, click [End], and turn the printer OFF then 
back ON again to end the adjustment. This action reflects the color measurement 
values on the printer.
Figure 5-31. END
Be sure to start the measurement from the top side of the chart.
Be sure to measure colors at each row two times.
During color measurement, do not allow the Calibrator to rub 
against unmeasured patches on the chart.
Prevent the ruler and Calibrator from coming off the chart 
sheet during color measurement. Doing so will cause incorrect 
color measurement.
During color measurement, measure only the patches on the 
chart sheet. Do not measure other parts such as the USB ID 
text string.
When there is an error possibility in measuring color, a 
warning mark ( ) appears at the patch in question. In such 
case, make sure to measure the row that includes the patch 
with a warning mark again.
If the number of scanned patches does not match the number of 
patches on a single row, the cursor stops at that row, the error 
mark ( ) appears on all of the patches on that row, and the 
following error message is displayed:
“Color measuring by Eye-One calibrator has failed. 
Measure colors of the failed row again.” 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment 159
Confidential5.2.5  ASF Guide Roller LDs Position AdjustmentWhen installing the Guide Roller LDs, the position of the Guide Roller LDs must be 
adjusted so that the positions of the LD Roller Shaft and Retard Roller are optimized in 
order to maintain the paper feed accuracy.5.2.5.1  Adjusting the Position of the ASF Guide Roller LDs1. After installing the 4.4.6 ASF Assy 
(p106)
, loosen the two C.B.S. M3x6 screws 
that secure the Guide Roller LD.
Figure 5-32. Guide Roller LD2. Turn Combination Gear 29.11 on the right side of the ASF Assy CCW to raise the 
Hopper to the upper limit position (until the Hopper Pad contacts the LD Roller).
Figure 5-33. Raising the Hopper



When only removing the ASF Assy, you do not need to perform this 
adjustment. In that case, mark the installing positions of the Guide 
Roller LDs before removing them, and make sure to align the 
markings when installing the Guide Roller LDs. (Refer to 4.4.6 ASF 
Assy (p106) )
Front
2) C.B.S. M3x6
(8±1 kgf.cm)
Dowel
Rib
LD Roller Shaft
Guide Roller LD
Guide Roller LD
Combination Gear 29.11
Hopper PadLD Roller 
						

							EPSON Stylus Photo R1900/R2880/R2000Revision E
Adjustment Adjustment 160
Confidential3. Light the printers inside through a gap between the Roll Paper Frame and the ASF 
Assy with a penlight, and look the tab on the Retard Roller Holder at the back of 
the two reference tabs on the ASF Assy through the notch. After making sure that 
the two reference tabs are aligned when viewed edge-on, adjust the position of the 
Retard Roller Holder Tab by pressing the Guide Roller LD (0 digit side) so that it 
is placed within the range as shown in the simplified diagram in Figure 5-34.
Figure 5-34.
Aligning the Position of the Guide Roller LD (0 Digit Side)
4. Align the guide pin and tab on the 0 Digit Side Guide Roller LD with the 
positioning holes on the Main Frame, and tighten the Guide Roller LD (0 Digit 
Side) with the screws. (See Fig.5-35.)
5. Check the position of the Retard Roller Holder Tab again through the notch. If it is 
not inside the range, remove the screws on the Guide Roller LD (0 Digit Side), and 
repeat steps 2 to 4 to set the tab within the range.
6. Check the clearance in both ends of the positioning hole that the Guide Roller LD 
Tab is inserted. And align Guide Roller LD (130 Digit Side) to the same height, 
and tighten with the screws.
Figure 5-35.
Checking the Position of Tab on the Guide Roller LD
Roll Paper Frame
Notch
Reference 
tabsRetard Roller 
Holder tab
Reference 
Tabs
Retard Roller Holder Tab
Lower Limit
Upper Limit
Aligning position for bottom of Retard 
Roller Holder tab with reference tabsAligning position for top of Retard 
Roller Holder tab with reference tabs



The following are the possible troubles for misadjustment.
Gap
Tab
Guide pin
Tab Position
Trouble
Above upper limit• Paper feed mistakes caused by non-feed
• Skewing of business cards
Below lower limit
• Multiple-sheet feeding