Epson AcuLaser C1750N User Manual

							Auger Mark
ProblemAction
The printed result has auger mark. The toner cartridges may be low or need to be replaced. Confirm the amount of
toner in each toner cartridge.
1. Check the toner level in the Status tab in the Status Monitor window.
2. Replace the toner cartridges as necessary.
Start Developer Stir Mode.
1. Launch the Printer Setting Utility, and click Developer Stir Mode on the
Diagnosis tab.
2. Click the Start button.
Note:
If the problem continues even though you have taken suggested actions described above, contact the
Epson local representative office or an authorised dealer.
Wrinkled/Stained Paper
Epson AcuLaser C1750 Series     User’s Guide
Troubleshooting     171
 
						

							ProblemAction
The output is wrinkled.
The output is stained.Verify that the correct print media is being used.
If not, use the print media recommended for the printer.
If excessive wrinkles occur, use paper or other media from a new package.
See also:
❏“Usable Print Media” on page 93
❏“About Print Media” on page 91
If you use the envelope, check whether the cre a s e  i s  w i t h i n  3 0  m m  o f  t h e  f o u r  e d g e s
of the envelope.
If the crease is within 30 mm of the four edges of the envelope, this is considered
normal. Your printer is not at fault.
If not, take the following actions:
❏If the envelope is #10 envelope, which is 220 mm or longer and has a flap on the
long edge, use a different size envelope.
❏If the envelope is C5, which is 220 mm or longer and has a flap on the short
edge, load it in the MPF with the flap open and facing up.
❏If the envelope is Monarch or DL, which is shorter than 220 mm, load it long
edge feed in the MPF with the flap open and facing up.
If the problem continues, use a different size envelope.
Note:
If the problem continues even though you have taken suggested actions described above, contact the
Epson local representative office or an authorised dealer.
The Top Margin Is Incorrect
ProblemAction
The top margin is incorrect. Ensure that the margins are set correctly on the application being used.
Epson AcuLaser C1750 Series     User’s Guide
Troubleshooting     172
 
						

							Note:
If the problem continues even though you have taken suggested actions described above, contact the
Epson local representative office or an authorised dealer.
Color Registration Is out of Alignment
Epson AcuLaser C1750 Series     User’s Guide
Troubleshooting     173
 
						

							ProblemAction
Color registration is out of alignment. Execute auto color registration adjustment.
1. Launch the Printer Setting Utility, and click Color Registration Adjustment on
the Printer Maintenance tab.
2. Deselect the check box next to On.
3. Click the Start button next to Auto Correct.
Clean the CTD sensor.
1. Clean the CTD sensor.
2. Launch the Printer Setting Utility, and click Color Registration Adjustment on
the Printer Maintenance tab.
3. Deselect the check box next to On.
4. Click the Start button next to Auto Correct.
See also:
“Cleaning the Color Toner Density (CTD) Sensor” on page 199
Print the color registration chart and manually correct the color registration.
1. Launch the Printer Setting Utility, and click Color Registration Adjustment on
the Printer Maintenance tab.
2. Deselect the check box next to On.
3. Click the Start button next to Print Color Regi Chart.
4. Select the paper size, and then click OK.
The color registration chart is printed.
5. Check the values with the straight lines on the chart.
6. Select the value for each color on the Printer Setting Utility.
7. Click the Apply New Settings button.
8. Click the Start button next to Print Color Regi Chart to print the color
registration chart again.
9. Adjust till all straight lines are at the value of 0.
See also:
“Adjusting Color Registration” on page 175
Note:
If the problem continues even though you have taken suggested actions described above, contact the
Epson local representative office or an authorised dealer.
Epson AcuLaser C1750 Series     User’s Guide
Troubleshooting     174
 
						

							Protrudent/Bumpy Paper
ProblemAction
Printed surface got protrudent/bumpy. Clean up the fusing unit.
1. Load one sheet of paper on the MPF, and then print a solid image all over paper.
2. Load the printed sheet with the side to be printed on facing down, and then print
a blank sheet of paper.
Note:
If the problem continues even though you have taken suggested actions described above, contact the
Epson local representative office or an authorised dealer.
Adjusting Color Registration
This section describes how to adjust the color registration when you first install the printer or after
moving it to a new location.
Performing Auto Correct
Auto Correct allows you to correct the color registration automatically.
The Operator Panel
1. Press the  (Menu) button.
2. Select Admin Menu, and then press the 
 button.
3. Select Maintenance Mode, and then press the 
 button.
4. Select Adjust ColorRegi, and then press the 
 button.
Epson AcuLaser C1750 Series     User’s Guide
Troubleshooting     175
 
						

							5. Select Auto Adjust, and then press the  button.
6. Select Are you sure?, and then press the 
 button.
Auto Correct is performed.
The Printer Setting Utility
The following procedure uses Microsoft® Windows® XP as an example.
1. Click start — All Programs — EPSON — EPSON Printer Software — EPSON AL-C1750N /
EPSON AL-C1750W — Printer Setting Utility.
Note:
The Select Printer window appears in this step, when multiple print drivers are installed on your
computer. In this case, click the name of the desired printer listed in Printer Name.
The Printer Setting Utility opens.
2. Click the Printer Maintenance tab.
3. Select Color Registration Adjustment from the list at the left side of the page.
The Color Registration Adjustment page is displayed.
4. Deselect the check box next to On.
5. Click the Start button next to Auto Correct.
The color registration is corrected automatically.
Printing the Color Registration Chart
The Operator Panel
1. Press the  (Menu) button.
2. Select Admin Menu, and then press the 
 button.
3. Select Maintenance Mode, and then press the 
 button.
Epson AcuLaser C1750 Series     User’s Guide
Troubleshooting     176
 
						

							4. Select Adjust ColorRegi, and then press the  button.
5. Select Color Regi Chart, and then press the 
 button.
The color registration chart is printed.
The Printer Setting Utility
The following procedure uses Windows XP as an example.
1. Click start — All Programs — EPSON — EPSON Printer Software — EPSON AL-C1750N /
EPSON AL-C1750W — Printer Setting Utility.
Note:
The Select Printer window appears in this step, when multiple print drivers are installed on your
computer. In this case, click the name of the desired printer listed in Printer Name.
The Printer Setting Utility opens.
2. Click the Printer Maintenance tab.
3. Select Color Registration Adjustment from the list at the left side of the page.
The Color Registration Adjustment page is displayed.
4. Deselect the check box next to On.
5. Click the Start button next to Print Color Regi Chart.
6. Select the paper size, and then click OK.
The color registration chart is printed.
Determining Values
On the color registration chart printed, find the straightest lines where the two black lines and the
colored line are most closely aligned for each color (Y, M, and C).
If you find the straightest line, make a note of the value (-5 – +5) indicated by the straightest line for
each color.
Epson AcuLaser C1750 Series     User’s Guide
Troubleshooting     177
 
						

							When the value is 0 for each color, you do not need to adjust the color registration.
When the value is not 0, enter the value according to the procedure in “Entering Values” on
page 178.
Entering Values
The Operator Panel
Using the operator panel, enter the values that you found in the color registration chart to make
adjustments.
1. Press the 
 (Menu) button.
2. Select Admin Menu, and then press the 
 button.
3. Select Maintenance Mode, and then press the 
 button.
4. Select Adjust ColorRegi, and then press the 
 button.
Epson AcuLaser C1750 Series     User’s Guide
Troubleshooting     178
 
						

							5. Select Enter Number, and then press the  button.
6. Ensure that Enter (Y,M,C) appears, and then press the 
 or  button until you reach the value
(for example, +3) displayed on the chart.
7. Press the 
 button once and move the cursor to the next color.
8. Repeat steps 6 and 7 to enter all of the digits, and then press the 
 button.
9. Ensure that Enter (LY,LM,LC) appears.
10. Press the 
 or  button until you reach the value (for example, +3) displayed on the chart.
11. Press the 
 button once and move the cursor to the next color.
12. Repeat steps 10 and 11 to enter all of the digits, and then press the 
 button.
13. Ensure that Enter (RY,RM,RC) appears.
14. Press the 
 or  button until you reach the value (for example, +3) displayed on the chart.
15. Press the 
 button once and move the cursor to the next color.
16. Repeat steps 14 and 15 to enter all of the digits, and then press the 
 button.
The top screen appears.
17. Perform steps 1 to 4 to enter the Adjust ColorRegi menu.
18. Select Color Regi Chart, and then press the 
 button.
The color registration chart is printed with the new values.
19. Adjust till all straight lines are at the value of 0. Viewing the images before and after will help.
The Printer Setting Utility
Using the Printer Setting Utility, enter the values that you found in the color registration chart to make
adjustments.
The following procedure uses Windows XP as an example.
Epson AcuLaser C1750 Series     User’s Guide
Troubleshooting     179
 
						

							1. Click start — All Programs — EPSON — EPSON Printer Software — EPSON AL-C1750N /
EPSON AL-C1750W — Printer Setting Utility.
Note:
The Select Printer window appears in this step, when multiple print drivers are installed on your
computer. In this case, click the name of the desired printer listed in Printer Name.
The Printer Setting Utility opens.
2. Click the Printer Maintenance tab.
3. Select Color Registration Adjustment from the list at the left side of the page.
The Color Registration Adjustment page is displayed.
4. Deselect the check box next to On.
5. Select the value you checked in the color registration chart, and then click the Apply New
Settings button.
6. Click the Start button next to Print Color Regi Chart.
7. Select the paper size, and then click OK.
The color registration chart is printed with the new values.
8. Adjust until all straight lines are at the value of 0. Show image of before and after adjustment will
help.
Important:
❏After printing the color registration chart, do not turn off the printer until the printer motor has
stopped running.
❏If 0 is not next to the straightest lines, determine the values and adjust the printer again.
Noise
Note:
In this section, the procedures use the Printer Setting Utility.
Epson AcuLaser C1750 Series     User’s Guide
Troubleshooting     180