Xerox Phaser 6500N User Manual

							Troubleshooting
Phaser 6500 Color Laser Printer
User Guide131 Partial blanks, creased paper, or 
blotted printing.The paper is damp. Replace the paper.
The paper is outside the 
recommended specification 
range.Replace the paper with a recommended 
size and type. For details, see Supported 
Paper on page 48.
The transfer belt unit or the 
fuser is not installed correctly.Reinstall the transfer belt unit or the 
fuser. For details, see the instruction 
sheets in the documentation packet 
that came with your printer.
The toner cartridges are not 
Xerox
® toner cartridges.Verify that the toner cartridges meet 
specifications and replace if necessary. 
For details, see Consumables on 
page 108.
Condensation inside the printer 
causes partial blanks or creased 
paper.Turn on the printer and leave it on for at 
least one hour to get rid of the 
condensation. If the problems still occur, 
for assistance see the Xerox
® Support 
website:
www.xerox.com/office/6500support
Vertical blanks. The laser is being blocked. Remove the imaging unit and clean all 
debris from the laser lens with a lint-free 
cloth. For details, see Cleaning the 
Imaging Unit and Laser Lens on 
page 133.
The transfer belt unit or fuser is 
old or damaged.Check the condition of the transfer belt 
unit and fuser, and replace if necessary.
The toner cartridges are not 
Xerox
® toner cartridges.Verify that the toner cartridges meet 
specifications and replace if necessary.
Slanted printing. The paper guides in the trays 
are not set correctly.Reset the paper tray guides. For details, 
see Loading Paper on page 51.
Horizontal bands, 
approximately 22 mm wide, 
appear vertically every 73 mm.The imaging unit has been 
exposed to too much light; 
possibly from leaving the front 
door open too long.Replace the imaging unit.
SymptomCauseSolution
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							Troubleshooting
Phaser 6500 Color Laser Printer
User Guide 132Colors are blurry or there is 
white area around objects.Color-to-color alignment is not 
correct.Perform an automatic color registration 
adjustment. For details, see Color 
Registration on page 136.
SymptomCauseSolution
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							Troubleshooting
Phaser 6500 Color Laser Printer
User Guide133
Cleaning the Imaging Unit and Laser Lens
If prints have voids or light streaks through one or more color, use the following instructions to clean 
the imaging unit and laser lens.
Note: Do not use warm water or cleaning solvents to remove toner from your skin or clothing. 
Warm water sets the toner and make it difficult to remove. If toner gets on your skin or clothing, 
brush it off, blow it off, or wash it off with cold water and mild soap.
1. Switch off the printer at the power switch located on the left side of the printer toward the back.
2. Wait until the printer has cooled (about 40 minutes).
3. Remove Tray 1 and set it aside.
4. Open the printer by pressing the front cover button on the right side of the printer near the top.
5. Fold down the transfer belt unit, being careful not to touch its shiny surface.
6. Using a flashlight, inspect the gaps in the imaging unit and remove any paper debris from the area. CAUTION: Do not expose the imaging unit to strong light, and minimize its 
exposure to light in general to five minutes or less if possible.
p6500-023p6500-024
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							Troubleshooting
Phaser 6500 Color Laser Printer
User Guide 134
7. Remove the imaging unit:
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. 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 can 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 19.
p6500-025
90º
p6500-026
p6500-042
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							Troubleshooting
Phaser 6500 Color Laser Printer
User Guide135
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.
p6500-041
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							Troubleshooting
Phaser 6500 Color Laser Printer
User Guide 136
Color Registration
This section includes:
•Enabling/Disabling Automatic Color Registration on page 136
•Performing an Automatic Color Registration Adjustment on page 136
•Performing a Manual Color Registration Adjustment on page 137
The printer automatically adjusts the color registration when automatic adjustment is enabled. You 
can manually adjust color registration at any time the printer is idle. Adjust the color registration any 
time the printer is moved. If you are having printing problems, adjust the color registration. For details, 
see Print-Quality Problems on page 128.
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. Press the Down Arrow button to scroll to Maintenance Mode and press OK.
4. Press the Down Arrow button to scroll to Auto Regi Adjust and press OK.
5. Do one of the following:
• To enable the feature, at On press OK.
• To disable the feature, press the Down Arrow button to scroll to Off and press OK.
6. Press the Return button 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. Press the Down Arrow button to scroll to Maintenance Mode and press OK.
4. Press the Down Arrow button to scroll to Adjust Color Regi and press OK.
5. At Auto Adjust, press OK.
6. At the prompt, Are you sure?, press the Up Arrow or Down Arrow button to select Ye s.
7.  Press OK to begin the calibration.
When the adjustment is complete, the printer control panel displays Ready.
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							Troubleshooting
Phaser 6500 Color Laser Printer
User Guide137
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 137.
2.Determining the Color Registration Values on page 137.
3.Entering Color Registration Value on page 138.
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. Press the Down Arrow button to scroll to Maintenance Mode and press OK.
4. Press the Down Arrow button to scroll to Adjust Color Regi and press OK.
5. Press the Down Arrow button to scroll to Color Regi Chart and press OK.
6. Press the up Arrow or Down Arrow button to select Ye s, then press OK.
The Color Registration Chart prints.
7. Continue to Determining the Color Registration Values on page 137 to determine if an adjustment 
is necessary.
Determining the Color Registration Values
The Color Registration Chart shows horizontal and vertical values for each color. The horizontal values 
are:
•LY = left yellow
•LM = left magenta
• LC = left cyan
• RY = right yellow
• RM = right magenta
• RC = right cyan
The vertical values are:
• PY = paper feed direction yellow
• PM = paper feed direction magenta
• PC = paper feed direction cyan
To determine the horizontal values:
1. In the top section of the Color Registration Chart, lines are displayed next to the color letters LY, 
LM, LC, RY, RM, and RC. 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 shows how to determine the closest number.
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.
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							Troubleshooting
Phaser 6500 Color Laser Printer
User Guide 138
• If zero (0) is not the value nearest the straightest line, write down the number that is closest.
3. Proceed to determining the vertical values described in the following procedure.
To determine the vertical values:
1. In the lower section of the Color Registration Chart, columns of color are displayed with a wavy 
white column where there is no color. Identify the column of white that is the straightest. Refer to 
the enlarged illustration on the chart that shows how to determine the closest number.
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 closest.
3. If it is necessary to make any horizontal or vertical adjustments, proceed to Entering Color 
Registration Value on page 138.
Entering Color Registration Value
Using the printer control panel, enter the values that you found in the Color Registration Correction 
Chart to make adjustments.
1. On the control panel, press the Menu button.
2. Press the Up Arrow or Down Arrow button to select Admin Menu, then press the OK button.
3. Press the Up Arrow or Down Arrow button to select Maintenance, then press OK.
4. Press the Up Arrow or Down Arrow button to select Adjust Color Regi, then press OK.
5. Press the Up Arrow or Down Arrow button to select Enter Number, then press OK.
6. Adjust the Left Horizontal registration values:
a. Press the Up Arrow or Down Arrow button to select the LY value from the Color Registration 
Correction Chart. Press the Fo r wa rd  A r ro w button to adjust the next value.
b. Press the Up Arrow or Down Arrow button to select the LM value from the Color Registration 
Correction Chart. Press the Fo r wa rd  A r ro w button to adjust the next value.
c. Press the Up Arrow or Down Arrow button to select the LC value from the Color Registration 
Correction Chart. Press OK to move to the next screen.
7. Adjust the Right Horizontal registration values:
a. Press the Up Arrow or Down Arrow button to select the RY value from the Color Registration 
Correction Chart. Press the Fo r wa rd  A r ro w button to adjust the next value.
b. Press the Up Arrow or Down Arrow button to select the RM value from the Color Registration 
Correction Chart. Press the Fo r wa rd  A r ro w button to adjust the next value.
c. Press the Up Arrow or Down Arrow button to select the RC value from the Color Registration 
Correction Chart. Press OK to move to the next screen.
8. Adjust the Process Vertical registration values:
a. Press the Up Arrow or Down Arrow button to select the PY value from the Color Registration 
Correction Chart. Press the Fo r wa rd  A r ro w button to adjust the next value.
b. Press the Up Arrow or Down Arrow button to select the PM value from the Color Registration 
Correction Chart. Press the Fo r wa rd  A r ro w button to adjust the next value.
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							Troubleshooting
Phaser 6500 Color Laser Printer
User Guide139
c. Press the Up Arrow or Down Arrow button to select the PC value from the Color Registration 
Correction Chart.
9. When the registration value adjustments are complete, press OK.
10. Print the chart again to check the values:
a. Press the Up Arrow or Down Arrow button to select Color Regi Char, then press OK.
b. Press the Up Arrow or Down Arrow button to select Ye s, then press OK.
Note: For details, see Printing the Color Registration Correction Chart on page 137.
11. If 0 is not displayed next to the straight lines, examine the chart and determine additional 
correction values.
12. When satisfied that the horizontal adjustment is complete, press the Back button to return to the 
Ready screen.
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							Troubleshooting
Phaser 6500 Color Laser Printer
User Guide 140
Color Balance
The printer automatically rebalances the color when printer consumables are replaced, or when 
changes in environmental conditions occur. To performance this manually one time, use the following 
procedure.
To adjust the color balance for the printer:
1. On the control panel, press the Menu button.
2. Press the Up Arrow or Down Arrow button to select Admin Menu, then press the OK button.
3. Press the Up Arrow or Down Arrow button to select Maintenance, then press OK.
4. Press the Up Arrow or Down Arrow button to select Drum Refresh, then press OK. 
5. At the Are you sure? prompt, press OK.
The process runs automatically. Wait about three minutes for the process to complete and the 
printer to return to Ready.
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