Xerox Phaser 6140DN User Manual

							Troubleshooting
Phaser 6140 Color Laser Printer
User Guide141
7. Remove the imaging unit:
Caution:Do not drop or shake the imaging unit after removal because toner can spill from it.
Caution:Do not expose the imaging unit to any light source for more than five minutes. Prolonged 
exposure to light may damage the unit. Cover the imaging unit while it is exposed. Do not touch 
the shiny blue transfer belt unit. For details, see Internal Components on page 20 for location.
a. Turn the four peach-colored twist-locks to the left to unlock the imaging unit.
b. Grasp the imaging unit by its peach-colored pull tabs on the top edge and then pull the unit 
forward and up out of the printer.
c. Place the imaging unit on a flat surface and cover it with a sheet of paper to minimize its 
exposure to light.
8. Using a clean, dry, lint-free cloth or swab, clean all debris from the laser lens.
9. Check for and remove any debris around the imaging unit gears located on the left side of the unit.
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							Troubleshooting
Phaser 6140 Color Laser Printer
User Guide 142
10. Reinstall the imaging unit:
a. Grasp the unit by its peach-colored pull-tabs on the top edge and install the unit in the printer. 
Make sure to insert the unit into the guides in the printer and then push the unit all the way 
back into the printer.
b. Turn the four twist-locks to the right to lock the unit.
11. Fold the transfer belt unit back into place and close the printer front cover.
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							Troubleshooting
Phaser 6140 Color Laser Printer
User Guide143
Color Registration
This section includes:
•Enabling/Disabling Automatic Color Registration on page 143
•Performing an Automatic Color Registration Adjustment on page 143
•Performing a Manual Color Registration Adjustment on page 144
Color registration can be adjusted by the printer automatically if automatic adjustment is enabled, or 
you can manually adjust it. Color registration should be adjusted any time the printer is moved. You 
may also need to adjust the color registration if you are having printing problems. For details, see Print-
Quality Problems on page 135.
Enabling/Disabling Automatic Color Registration
Use the following procedure to enable or disable the automatic color registration adjustment feature.
1. On the printer control panel, press the Menu button.
2. Press the Down Arrow button to go to Admin Menu and then press the OK button.
3. Arrow down to Maintenance Mode and press OK.
4. Arrow down to Auto Regi Adj and press OK.
5. Do one of the following:
• To enable the feature, at On press OK.
• To disable the feature, arrow down to Off and press OK.
6. Press Menu to return to the main menu.
Performing an Automatic Color Registration Adjustment
Use the following procedure to perform automatic color registration adjustment.
Note:An automatic color registration adjustment is performed every time a new toner cartridge is 
installed.
1. On the printer control panel, press the Menu button.
2. Press the Down Arrow button to go to Admin Menu and then press the OK button.
3. Arrow down to Maintenance Mode and press OK.
4. Arrow down to Adjust Color Regi and press OK.
5. At Auto Adjust, press OK.
6. At Are you sure? press OK to begin the calibration.
When the adjustment is complete, the printer control panel reads Ready.
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							Troubleshooting
Phaser 6140 Color Laser Printer
User Guide 144
Performing a Manual Color Registration Adjustment
You can fine tune color registration by performing a manual adjustment. Manual color registration 
adjustment is a three-step process:
1.Printing the Color Registration Correction Chart on page 144.
2.Determining the Color Registration Values on page 144.
3.Entering Color Values on page 145.
Printing the Color Registration Correction Chart
1. On the printer control panel, press the Menu button.
2. Press the Down Arrow button to go to Admin Menu and then press the OK button.
3. Arrow down to Maintenance Mode and press OK.
4. Arrow down to Adjust Color Regi and press OK.
5. Arrow down to Color Regi Chart and press OK.
The Color Registration Chart prints.
6. Continue to Determining the Color Registration Values on page 144 to determine if an adjustment 
needs to be made.
Determining the Color Registration Values
The Color Registration Chart shows horizontal and vertical values for each color, Y (yellow), M 
(magenta), and C (cyan). Section 1 shows horizontal values, and Section 2 shows vertical values.
To determine the horizontal values:
1. In Section 1 of the Color Registration Chart, lines are displayed to the right of the color letters Y, M, 
and C. Some lines are straight and other lines are jagged. A value is listed next to each line. For 
each color, examine the lines and determine which one is the straightest. Refer to the enlarged 
illustration on the chart that gives an example of what to look for.
2. For each color, do one of the following:
• If zero (0) is the value nearest the straightest line, you do not need to adjust the color 
registration.
• If zero (0) is not the value nearest the straightest line, write down the number that is.
3. Proceed to determining the vertical values (below).
To determine the vertical values:
1. In Section 2 of the Color Registration Chart, columns of color are displayed. In the center of the 
columns is a wavy white column where there is no color. This column of white needs to be centered 
as closely as possible at 0. Refer to the enlarged illustration on the chart that gives an example of 
how to determine which number is closest to the center of the white band.
2. For each color, do one of the following:
• If zero (0) is the value closest to the middle of the white band, you do not need to adjust that 
color.
•If zero (0) is not the value closest to the middle of the white band, write down the number that 
is.
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							Troubleshooting
Phaser 6140 Color Laser Printer
User Guide145
3. If you need to make any horizontal or vertical adjustments, proceed to Entering Color Values on 
page 145.
Entering Color Values
Using the printer control panel, enter the values that you found in the Color Registration Correction 
Chart to make adjustments.
1. On the printer control panel, press the Menu button.
2. Press the Down Arrow button to go to Admin Menu and then press the OK button.
3. Arrow down to Maintenance Mode and press OK.
4. Arrow down to Adjust Color Regi and press OK.
5. Arrow down to Enter Number and press OK.
6. For setting the horizontal values, arrow down to Fa s t  S ca n and press OK.
7. Press the Up or Down Arrow button until the required value on the chart is selected, then press the 
Fo r wa rd  A r ro w button once to move the cursor to the next value that requires adjustment.
8. When the horizontal adjustments are complete, press OK.
9. Print the chart again to check the values: press the Back Arrow button, press the Up Arrow button 
to select Color Regi Chart and then press OK to print the chart. The values you just changed should 
be shown as the new 0 point.
10. If 0 is not displayed next to the straight lines, examine the chart and determine additional 
correction values. Beginning with step 7, repeat the steps to continue making adjustments until 0 is 
next to the straight lines. The color registration adjustment is complete when the straightest Y, M, 
and C lines are next to the 0 line.
11. When satisfied that the horizontal adjustment is complete, press the Menu button to return to the 
main Menu screen.
12. For setting the vertical values, repeat steps 1 through 5 and then, at Slow Scan, press OK.
13. Press the Up or Down Arrow button until the required value on the chart is selected, then press the 
Fo r wa rd  A r ro w button once to move the cursor to the next value that requires adjustment.
14. When the adjustments are complete, press OK.
15. Repeat step 9 to print and check the values.
16. If the columns of white are not centered on 0 (as much as possible), look at the chart and 
determine the new correction values. Beginning with step 7, repeat the steps to continue making 
adjustments until 0 is next to the column of white on the printed chart. The color registration 
adjustment is complete when the columns of white are centered as much as possible on 0.
17. When finished, press the Menu
 button to return to the main menu.
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							Troubleshooting
Phaser 6140 Color Laser Printer
User Guide 146
Paper Jams
This section includes:
•Preventing Paper Jams on page 146
•Clearing Paper Jams on page 147
Preventing Paper Jams
To reduce the occurrence of paper jams, follow the guidelines and instructions in Supported Paper and 
Media on page 50. It includes paper-usage guidelines and instructions for properly loading paper in 
the trays.
To prevent paper and other media misfeeds and printer jams, keep in mind the following guidelines:
• Make sure that the paper used matches the printer’s specifications for each tray.
• Media should lie flat, especially on the leading edge.
• The printer is on a hard, flat, level surface.
• Store paper and other media in a dry location away from moisture and humidity.
• Always adjust the media guides in Tray 1 after inserting the media. A guide that is not properly 
adjusted can cause poor print quality, media misfeeds, and printer damage.
• Avoid using media that is folded, wrinkled, or excessively curled.
• Avoid double feeding (remove the media and fan the sheets—they may be sticking together).
• Do not load more than one type/size/weight of media in a tray at the same time.
• Do not overfill the trays.
• Do not allow the output tray to overfill; misfeeding may occur if you allow too many sheets of 
media to accumulate at one time).
Wa rni n g:When removing jammed paper, make sure that no pieces of torn paper are left in the 
printer. If a sheet of paper is wrapped around the heat roller, or when clearing a jammed paper 
that is difficult or impossible to see, do not try to remove it by yourself. Power OFF the printer using 
the power switch on the left side of the printer, toward the back, and then contact Support for 
additional assistance.
Wa rni n g:The fuser and the surrounding area are hot and can cause burns.
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							Troubleshooting
Phaser 6140 Color Laser Printer
User Guide147
Clearing Paper Jams
This section includes:
•When Long Paper Jams on page 147
•Clearing Jams at Tray 1 on page 147
•Clearing Jams at the Manual Feed Slot on page 148
•Clearing Jams at the Fuser on page 149
•Clearing Jams at the 250-Sheet Feeder on page 149
•Clearing Jams at the Duplex Unit on page 150
When Long Paper Jams
When long paper (longer than 356 mm) jams inside the printer, cut the paper as needed, then remove 
it in the proper way depending on the place that the paper jam occurs.
Caution:If it is difficult to open the front cover, do not force it. Turn off the printer using the power 
switch on the left side of the printer, toward the back. For additional assistance, refer to the Xerox 
Support website: www.xerox.com/office/6140support.
Clearing Jams at Tray 1
1. Pull the jammed paper gently out of the paper tray and then remove any remaining paper from 
the tray.
2. Close the paper tray and then press the front cover button and open the front cover.
Wa rni n g:Some components inside the printer, such as the fuser and surrounding area, are hot and 
can cause burns.
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							Troubleshooting
Phaser 6140 Color Laser Printer
User Guide 148
3. Carefully remove any jammed paper in the printer. Confirm that there are no scraps of paper left 
inside.
Caution:Prolonged exposure to light may damage the imaging unit so do not leave the cover open 
for more than 5 minutes at a time.
4. Close the front cover.
5. Remove the tray from the printer and then carefully pull out any jammed paper remaining inside 
the printer.
6. Reinsert the tray into the printer.
Caution:Do not use excessive force on the tray; doing so could damage the tray or the inside of 
the printer.
Clearing Jams at the Manual Feed Slot
1. Pull Tray 1 out of the printer.
2. Remove any jammed or damaged paper in the tray and then close the tray.
3. Press the front cover button to open the cover.
4. Carefully remove any jammed paper in the printer. Make sure there are no torn pieces of paper 
inside the printer.
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							Troubleshooting
Phaser 6140 Color Laser Printer
User Guide149
5. Close the front cover.
Clearing Jams at the Fuser
Wa rni n g:Never touch a labeled area found on or near the heat roller in the fuser. You can get 
burned. If a sheet of paper is wrapped around the heat roller, do not try to remove it by yourself to 
avoid injuries or burns. Switch off the printer immediately and wait 40 minutes for the fuser to cool.
Wa rni n g:When removing jammed paper, make sure that no torn pieces of paper are left in the 
printer. A piece of paper remaining in the printer can cause a fire. If a sheet of paper is wrapped 
around the heat roller, or a jammed sheet of paper is difficult to see, do not try to remove the 
paper. Turn off the printer using the power switch on the left side of the printer, toward the back. 
For additional assistance, refer to the Xerox Support website www.xerox.com/office/6140support.
Caution:Do not expose the Imaging Unit to any light source for more than 5 minutes. Prolonged 
exposure to light may damage the unit. Do not touch the shiny black transfer belt unit.
1. Press the front cover button on the side of the printer and open the printer cover.
2. Being careful not to touch the fuser itself, lift the levers at both sides of the fuser to open its front 
cover and then remove the jammed paper. If the paper is torn, remove any scraps of paper 
remaining inside the printer.
3. Put the fuser tabs back into place and then close the printer’s front cover.
Clearing Jams at the 250-Sheet Feeder
Note:Paper jammed in the lower tray can block the trays above it, preventing you from opening 
them. Look for the jammed paper sequentially, starting with the lowest tray.
1. Pull out the paper trays until you find the jammed paper.
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							Troubleshooting
Phaser 6140 Color Laser Printer
User Guide 150
2. Remove all jammed and creased paper from the tray.
3. Pull the jammed paper out carefully to avoid tearing it. If the paper is torn, remove the scraps.
4. Press the front cover button and open the printer cover. Confirm that there are no scraps of paper 
remaining inside the printer.
Caution:Prolonged exposure to light may damage the imaging unit.
Wa rni n g:Some components inside the printer, such as the fuser and surrounding area, are hot and 
can cause burns.
5. Close the printer cover and then reinsert the trays.
Caution:Do not use excessive force on the tray. Doing so could damage the tray or the inside of 
the printer.
Clearing Jams at the Duplex Unit
1. Press the front cover button and open the printer cover.
Wa rni n g:Some components inside the printer, such as the fuser and surrounding area, are hot and 
can cause burns.
Caution:Prolonged exposure to light may damage the imaging unit.
2. Gently pull out the jammed paper. If you cannot find the jammed paper, go to the next step.
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