Epson 4880 C Service Manual

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 4115.3.18  Ink DischargeBefore removing the Damper (Valve Assy., Head), discharge the ink remaining 
in the equipment by following the procedure below.†
Procedure
1. Turn the printer power on.
2. Start up the adjustment program and select [Ink Discharge].
3. Click the [Run] tab.
4. When a pop-up window appears, click [OK].
5. Confirm that the Please Remove Ink message is displayed on the 
LCD, and pick up the ink levers on both sides to remove all the ink 
cartridges.
6. Press Menu(>) to display Set Lever (L/R), and lower the ink 
levers.
7. Press Menu(>) to change the display to Dischg. Washfluid. The 
ink discharge begins at this time.
8. The display turns to Set Cleaning I/C when the ink discharge is 
finished. Pull up the ink levers on both sides to install the ink 
cartridges.
9. Press Menu(>) to display Set Lever (L/R), and lower the ink 
levers.
10. Press Menu(>) to start the head cleaning. The display changes to 
Head Cleaning.
11. The display turns to Please Remove CL I/C when the head cleaning 
is completed. Pull up the ink levers on both sides to remove the ink 
cartridges.
12. Press Menu(>) to display Set Lever (L/R), and lower the ink 
levers.
13. Press Menu(>) to discharge the cleaning liquid. The display changes 
to Dischg. Washfluid.
14. Click [Finish] on the Ink Discharge screen when the discharge is 
finished.Figure 5-56. Ink Discharge 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 4125.3.19  Initial Ink Charge†
Procedure
1. Turn the printer power on.
2. Start the adjustment program and select [Initial Ink Charge].
3. Press the F5 key and Initial Ink Charge will start.
4. After Initial Ink Charge is completed, click the [Finish] button.
Figure 5-57. Initial Ink Charge
5.3.20  Cleaning†
Procedure
1. Turn the printer power on.
2. Start the adjustment program and select [Cleaning].
3. Press F1~F4 key to start cleaning.
4. When cleaning is completed, click the [Finish] button.
Figure 5-58. Cleaning

Check the amount of ink remaining before starting Initial Ink 
Charge. If the remaining ink is less than 50%, replace the ink 
cartridge with a new one and then start the procedure.
Key
Cleaning
Ink consumption amount
Processing time
F1 CL1 Approx. 2.7 g/ 8 colors Approx. 1 minute and 10 seconds
F2 CL2 Approx. 3.5 g/ 8 colors Approx. 1 minute and 10 seconds
F3 CL3 Approx. 7.4 g/ 8 colors Approx. 1 minute and 10 seconds
F4 CL4 Approx. 9.25 g/ 8 colors Approx. 3 minutes and 30 seconds 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 4135.3.21  Rear Sensor AdjustmentWhen the rear sensor has been replaced, the AD value for setting a paper 
detection standard must be acquired and stored in the Main Board.†
Required Tool„
Microtrace #300 (A4)
†
Procedure
1. Enter Maintenance Mode 2.
Power off → Press Paper Source ()
3. Select SELF TESTING: Adjustment.
Paper Feed (-) x 1 → Menu (>)
4. Find Adj: Rear AD.
Paper Feed (-) x 2
5. Raise Paper Lever.
6. Insert Microtrace from rear paper feed slot and set it in the position 
shown by Figure 5-59, and then lower the Paper Lever.
7. Press Menu (>)  2 times and the panel display will change as shown 
below.
[Enter] Start → Exc.
8. Start acquisition of AD value by pressing Menu (>).
RearAD: *** *** *** will be shown in the display approximately 15 
seconds later.
9. Confirm that RearAD: *** *** *** is displayed, raise the [Paper Lever] 
and take out the Microtrace.
10. Lower the Paper Lever and turn off the printer power.Figure 5-59. Setting the Microtrace

If Retry AD Adjust is displayed in the panel at this time, the 
sensor has failed. Replace the sensor with a new part and 
execute the adjustment again.
Microtrace 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 4145.3.22  Colorimetric Calibration (Color ID)5.3.22.1  Adjustment OverviewPURPOSE
By registering/controlling information concerning the ink droplets, this product 
improves calibration accuracy and ensures stable color quality. (Difference in 
color among individual products or each mode is reduced.) (Refer to 2.5 
Colorimetric Calibration (Color ID) Overview (p155) )PRINCIPLE
The calibration is performed by measuring a printed correction pattern with a 
calibrator. ID information that is calculated based on the acquired color values 
(L*,a*,b*) is transmitted to the printer driver, and the printer driver corrects the 
dot generation amount for each dot size x each color in the print data. 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 4155.3.22.2  Adjusting MethodTOOLS REQUIREDADJUSTMENT WORKFLOW
The workflow of the adjustment is explained in this section. There are two 
types of the workflow; the one is for performing adjustment at a place same as 
the repair (parts replacement) work site, the other is for performing adjustment 
in a different place from the repair work site as the adjustment (color 
measuring) could not be executed on site.†
Entire process workflow
Performing adjustment continuously at the same place where the 
repairment is carried put.
†
Separate process workflow
Performing adjustment (color measuring) in a different place from the 
repair work site Figure 5-60. Adjustment Workflow Table 5-10. Tools Required
Tool
Application/Specification
Plain Paper (A4) For nozzle check and printing surface protection
Plain Paper (A3) For alignment check
EPSON Enhanced (Archival) 
Matte Paper (A4)For printing charts
Computer Following drivers should be installed beforehand.
†
Printer driver for this product
†
USB driver for the calibrator
GretagMacbeth eye-one (i1) 
(Calibrator)With UV filter
Calibration plate (White plate) Accessory provided with the calibrator
Scanning ruler (Scale) Accessory provided with the calibrator
USB cable To connect the computer and the calibrator
Black sheet Should be larger than A4
Clear file Required when sending charts
At repair work site At repair work site
At repair work site At color-mesuring site
Cleaning
Nozzle check
Alignment check
Print calibration chart
Measure color
Generate color ID data
Enter the data
Write the color ID
Check the color ID Cleaning
Nozzle check
Alignment check
Print calibration chart
Measure color
Write the color ID
Print validation chart
Measure color
Output the result
  
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 416ADJUSTMENT PROCEDURE (ENTIRE PROCESS WORKFLOW)
1. Turn the printer power on.
2. Start the adjustment program, and select [Colorimetric Calibration Tool].
3. Click [Run] to start the “Colorimetric Calibration Tool”.
4. Click the [Perform entire process] button.
5. Make sure that the  READY message is displayed on the printer LCD, 
and click [Next].
6. Select the connected printer from the printer list, and check if the LCD 
panel backlight of the printer flashes by clicking [Confirming flashing of the 
backlight].
7. Click [Next], then the message that prompt you to agitate the ink inside the 
cartridges will be displayed.
8. Click [OK] to start the cleaning.
Figure 5-61. Colorimetric Calibration ID Startup Screen
	


If the printer has not been used for more than two weeks, it 
is recommended to agitate the ink inside the cartridges to 
get an accurate result. Remove all the ink cartridges from the 
printer, and shake them gently for four or five times. 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 417 9. Load an A4-sized paper vertically on the paper tray, select  Automatic 
Nozzle Check from the “Types of Nozzle Check” box , and click [Next] to 
start the nozzle check.
10. Load an A3-sized paper horizontally on the paper tray and click [Next] to 
perform the alignment check.
11. Check the alignment pattern. If there is any defect, click [Cleaning] to 
execute cleaning.
If the check pattern is appropriate, click [Next].
12. Load an A4-sized Archival Matte Paper vertically on the paper tray, and 
click [Next] to print the calibration chart.
Figure 5-62. Entire Process Screen	


Clicking the [Skip alignment check] button will let you 
proceed to the next step without performing the alignment 
check.

Never touch the printed calibration chart. 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 418 13. Make sure there is no missing dots in the nozzle check pattern at the 
bottom of the calibration chart.
If there are missing dots, click [Print Calibration Chart Again]. The 
calibration chart will be printed again after performing cleaning.
If there are no missing dots, let the chart stand for five minutes until it dries 
out paying attention not to touch the chart.
14. When the calibration chart dries out (after five minutes), click [Next].
15. Connect a calibrator to the computer, and click [Measure].
16. Place the calibrator on the calibration base plate, and click [Calibrate]
17. Keep the calibrator remain set on the base plate, hold down the button on 
the side of the calibrator until it beeps.
Once the calibration completed normally, following screen appears.
Figure 5-63. i1CalibratorFigure 5-64. Entire process screen
18. Make sure that the date and time printed in the second line on the upper 
left of the chart (measurable time and date) is within the range displayed 
under the heading GMT on the lower screen. (If the date and time is not 
within the range, it is necessary to print the cart again.)
19. Refer to Figure 5-66, lay the chart on the black paper (or sheet) with the 
upper part of the chart facing left side, and set the scanning ruller onto the 
bottom most patch line.
Do not contaminate the white plate of the calibration base 
plate. If tainted, use alcohol to clean the plate.
Button
Calibration plate
i1 calibrator
White plate 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 419Figure 5-65. Measurable Time and Date Check
Figure 5-66. Setting the Chart and the Scanning Ruller
2005-04-11  14:44 (GMT  2005-04-11  05:44)
2005-04-18  14:39 (GMT  2005-04-18  05:39)S/N:0000000000 OS:Win BlackInk:Matte
Printer:EPSON PX-6500
Nozzle check 
pattern Calibration patch2005-04-11  14:44 (GMT  2005-04-11  05:44)
2005-04-18  14:39 (GMT  2005-04-18  05:39)S/N:0000000000 OS:Win BlackInk:Matte
Printer:EPSON Stylus Pro 4800
Printed date and time
Main unit serial number
Measurable date and time
Product name
OS type Black ink type
Set the scanning ruler with its guide gap matched with the patch. 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 420 20. Click [OK] and follow the instructions (following procedure) displayed on 
the screen to perform color measuring.
1.Set the calibrator with its measuring part matched with measuring start 
position (margin) as shown in Figure 5-68.
2.Press down the button on the side of the calibrator.
3.When it beeps, keep holding down the button and scan the patch along 
the calibration guide to measuring end position (margin).
4.Once the measuring is complete, release the button.
5.Repeat Step 1 through 4 twice for the same patch line.
6.Repeat Step 1 through 5 to measure the bottommost line to the top 
line. (The line that needs to be measured is displayed on the screen.)
21. Once all the lines (8 lines) are measured, click [OK].
Figure 5-67. Color Measuring ScreenMeasured lines Currently 
measured line Unmeasured lines

When measuring colors, pay attention to the instructions 
below.„
Take more than 10 seconds to measure one line.
„
Keep the scan speed constant as possible.
„
Measure each of the lines twice. (Measure the line as 
instructed on the program screen.)
„
Place the chart on a flat surface. The calibrator and the 
ruler must be attached firmly to the chart in order to 
measure the colors accurately.
„
Do not scan any places other than the one shown in 
Figure 5-68.
„
If a color-measuring error occurs or the measured values 
are completely out of the standard values, a warning 
mark ( ) appears. In this instance, check the 
instructions mentioned above and retry the color 
measuring again. 
„
If an error mark (  ) appears, check the instructions 
mentioned above and retry the color measuring again.