Epson 4880 C Service Manual

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 3915.3.5  T&B&S (Cut Sheet)This prints a special pattern and adjusts the printing position on the surface of 
the paper.†
Paper Used„
Size: A4
„
Type: Enhanced Matte Cut Sheet
†
Specifications„
Top margin: 10 ± 1 mm
„
Bottom margin:114 ± 1 mm
„
Side margin: 10 ± 0.3 mm
†
Procedure
1. Start the adjustment program and select [T&B&S (Cut Sheet)].
2. Click the [Print] button to print the adjustment pattern.
3. Measure the margins of the following three parts indicated with Figure 
5-27.
†
Top margin
†
Bottom margin
†
Side margin
4. Input the values measured in Procedure 3 to its corresponding edit 
box.
†
Top margin
†
Bottom margin
†
Side margin
5. Click the [Write] button and then click the [Print] button again to print 
the adjustment pattern.
6. Repeat Procedure 3 and Procedure 4, and click [Write].
7. If the specification values are satisfied, click [Finish]. If not satisfied, 
repeat Procedure 3 through Procedure 5 until they meet the standards.Figure 5-26. T&B&S (Cut Sheet) Screen
Figure 5-27. Adjustment Pattern

„
When measuring colors, place the adjustment pattern on 
a flat surface.
„
Make sure to perform the adjustment twice regardless 
whether the value obtained from the first measurement 
meets the specified value.
Side Margin
Bottom MarginTop Margin
5 mm 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 3925.3.6  Cutter Pressure AdjustmentAdjusts the pressure to cut papers after replacing the cutter solenoid.†
Required Tools„
Tension Gauge (10N)
†
Specifications„
500-600g
„
Pressure: Less than 85%
†
Procedure
1. Enter Maintenance Mode2.
Power off → Press Paper Source()
3. Select SELF TESTING: Adjustment.
Paper Feed(∇) x1 → Menu(>)
4. Select Adj: Cut Adj..
Menu(>)
5. Press Menu(>) to change the display from Pressure: **% to Exec. 
Adj.?.
6. Press Menu(>)  again to display the Please Wait message.
7. When the Carriage Unit detects its original point, the message 
[Exec] Key Down is displayed and the Carriage Unit is released.
8. Open the top cover, and press Menu(>) to display [Exec] Key Up 
and lower the cutter.
9. With the cutter kept lowered, measure the value five times in a row as 
pulling up the Holder, Solenoid of the Tension Gauge, and take down 
the results. Average value of the three measured figures except 
minimum and maximum values is considered to be the measurement 
result.10. If the result is below standard, press Menu(>) to raise the cutter, 
press Paper Feed(Δ) + Paper Feed(∇) to change the value (%) , 
and press Menu(>) to lower the cutter before measuring the value 
again.
This measurement and adjustment should be performed in three 
places (Right end → Center → Left end of the printer).
z
If the value is within standard (Less than 85%)
Move the Carriage Unit to the home position and turn the main 
unit power off.
z
If the value is beyond standard (More than 86%)
Perform the adjustment one more time. If the observed value still 
does not meet the standard, replace the Solenoid, CR and 
perform the adjustment again. 
Figure 5-28. Cutter Pressure Adjustment
Holder, Solenoid
Push-pull Gauge 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 3935.3.7  Nozzle Bi-D AdjustmentPerforms standard adjustment of matte black nozzle columns. Adequately 
adjusts matte black Bi-D before performing Bi-D adjustment for all nozzles.†
Paper Used„
Size: 17
„
Type:  Enhanced Matte Roll Paper
†
Procedure
1. Turn the printer power on.
2. Start adjustment program and select [Nozzle Bi-D Adjustment].
3. Click the [Print] button to print the nozzle check pattern.
The check pattern with the current setup values will be printed out.
4. Find the column where Bi-D is best aligned and input the number into 
the edit box.
5. Click the [Write] button to print the check pattern again and check it.Figure 5-29. Nozzle Bi-D Adjustment Screen
Figure 5-30. Nozzle Bi-D Adjustment Check Pattern	


The printed pattern is changed 2 steps. But you can input 1 
step unit.
20 MK = 28 (0)
28 36
Current set value 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 3945.3.8  Print Head Slant Adjustment (PF)†
Papers Required„
Size: 16
„
Type:  Premium Glossy Photo Paper
†
Procedure
1. Turn the printer power on.
2. Start up the adjusting program and select [Print Head Slant Adjustment 
(PF)].
3. Click [Print] to print the adjustment pattern.
Figure 5-31. Print Head Slant Adjustment (PF) Screen (1)4. Seeing the pattern in the direction shown in Figure 5-32, check the 
clearance gap between the second and the third blocks from the right. 
(See figure 5-32)  Measure the two intervals between the two blocks 
which are located one line lower/upper than the two continued lines 
with a magnifying glass with a scale.
z
The gap is parallel to the both blocks (Pattern 2).
Click [Next] and click [Finish] on the next screen to complete 
the adjustment.
z
The gap is not parallel to the both blocks (Pattern 1, 3).
Click [Next] and perform adjustment on the next screen. → to 
Procedure 5. 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 395Figure 5-32. Adjustment pattern
5. Open the top cover and move the Carriage Unit to the center of the 
printer.
6. Loosen the four screws (A, B, C, and D) shown in Figure 5-34 that 
secure the head.
7. Move the Cam, Inclination, R vertically and adjust the slant of the 
print head.
z
If the upper side of the gap is wider (Pattern 1):
Lower the Cam, Inclination, R.
z
If the bottom side of the gap is wider  (Pattern 3):
Raise the Cam, Inclination, R.
8. Tighten the four screws that are loosened in Procedure 6 in the order 
below. 
A → B → C → D
Move the Carriage Unit to the home position and close the top cover.
9. Click [Back] to go back to the previous screen, and perform Procedure 
3 through 8 repeatedly until the adjustment is completed. 
Figure 5-33. Print Head Slant Adjustment (PF) Screen (2)
Pattern 1
Pattern 2
Pattern 3
Paper Feed 
Direction 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 396Figure 5-34. Head Fixing Screws and the Cam , Inclination, R.3
D
Cam, Inclination,R
A
B
C
Head Fixing Screws 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 3975.3.9  Print Head Slant Adjustment (CR)†
Papers Required„
Size: 16
„
Type:  Premium Glossy Photo Paper
†
Procedure
1. Turn the printer power on.
2. Start up the adjusting program, select [Print Head Slant Adjustment (CR)] and click [Print] to print the adjustment pattern. After the printing is finished, the 
Carriage Unit moves to the center of the printer (adjustment position).
3. Click [Next] (Proceed to Screen 2).
Figure 5-35. Screens shift for Print Head Slant Adjustment (CR) 
To print out the adjustment pattern
The Carriage Unit moves 
to the home position and 
the paper is reeled off.
End of the 
adjustment
Screen 1
Screen 2Screen 4
Screen 3 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 3984. Seeing the pattern in the direction shown in Figure 5-36, check the 
clearance gap between the light magenta and magenta for both right 
and left columns of the third, ninth, and fifteenth blocks from the right.
z
No gap on both sides:
No adjustment required → Click [Next] two times (proceed to 
Screen 4), and click [Finish] to finish the adjustment.
z
Gap on any of the sides:
Adjustment required → Proceed to Procedure 5.
5. Click [Next] (Proceed to Screen 3).
Figure 5-36. Adjustment Pattern
Paper Feed 
Direction 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 3996. Open the top cover and loosen the two screws that secure the 
Stopper, Carriage shown in Figure 5-37.
7. Loosen the four head fixing screws (A, B, C, and D) shown in Figure 
5-37.
8. Move the Lever, Cam vertically and adjust the slant of the print head. 
z
Gap on the left column : Lower the Lever, Cam.
z
Gap on the right column : Raise the Lever, Cam.
9. Tighten the four screws that have been loosened in Procedure 7 in the 
order A ->B ->C ->D.
10. Secure the two screws that secure the Stopper, Carriage, and close 
the top cover. (The Carriage Unit moves to its home position.)
11.  Click [Back] twice to go back to Screen 1, and click [Print] to print the 
adjustment pattern. (Once the printing is finished, the Carriage Unit 
moves to the center of the printer (adjustment position).)
12. Click [Next]. (Proceed to Screen 2.)
13. Seeing the pattern in the direction shown in Figure 5-36, check the 
clearance gap between the light magenta and magenta for both right 
and left columns of the third, ninth, and fifteenth blocks from the right.
z
No gap on both sides:No adjustment required ->Proceed to 
Procedure 14.
z
Gap on any of the sides:Adjustment required -> Proceed to 
Procedure 6.
Figure 5-37. Head Fixing Screws and Lever, Cam

„
The position of the Lever, Cam can only be adjusted by 
moving downward. When you need to raise the Lever, 
Cam, raise it to the upper limit first and lower the 
Lever, Cam gradually.
„
Make sure to move the Lever, Cam while pressing it 
rearward, or the adjustment groove may be damaged.
A
B
C
Lever, Cam
D
Stopper, Carriage Fixing Screws
Head Fixing Screws 
						

							EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CAdjustment Basic Adjustment 40014. Check if the dots of each nozzle line are positioned as shown in Figure 
5-38.
15. Click [Next] twice to go back to Screen4, then click [Run]. The 
Carriage Unit moves to its home position and the paper is reeled off. 
Click [Finish] to finish the adjustment.
Figure 5-38. Checking the Dots Position
Cyan
Light Cyan
Cyan1/3
1/3 1/3Paper feed 
direction