Xerox Phaser 750DX User Manual

							40Phaser  750 Color Printer 
Symptom: Problem in one color only
n1 color has many vertical streaks. 
n1 color has a light vertical streak. 
n1 color is light or faded. 
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Print Quality
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							User Guide41
Solution: 
1.Adjust the color density.
a.Press Help, and scroll to Print Quality, press Menu, scroll to 
Calibrate Colors. Press Menu, scroll to Adjust Each Color. 
Press Menu. 
b.Adjust the density of the color that has problems.
2.Replace the Toner Cartridge of the color that has problems.
 
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							42Phaser  750 Color Printer 
Symptom: Problem in all four colors
nStreak through all 4 colors. 
nSpot in the same place on the page in all 4 colors. 
nRandom spots appear on every page. 
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							User Guide43
Solution:
1.The choice of media; check the following:
a.Use Tektronix media.
b.Use the correct media tray for the media you are using.
c.When using the Multi-Purpose Tray, select the correct media 
in the front panel.
2.Run Clean for Smudges. Press Help, scroll to Print Quality. Press 
Menu, scroll to Clean for Smudges. Press Ok and press Confirm.
3.Print about 25 blank pages until the problem disappears.
4.Replace Imaging Unit, or Fuser, or Fuser Roll.
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							44Phaser  750 Color Printer 
Symptom: All four colors are solid black
Prints are black (edge to edge). 
Solution: 
Remove then re-insert the Main Charge Grid. If problem persists, 
replace the Main Charge Grid.
Symptom: All four colors are extremely faded 
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							User Guide45
Solution:
1.Choice of media; check the following:
nUse Tektronix media.
nUse the correct media tray for the media you are using.
nWhen using the Multi-Purpose Tray, select the correct media 
in the front panel.
2.Relative humidity may be too low (below 30 percent relative 
humidity).
nRefer to Calibrate for Paper in the printerÕs front panel and run 
this mode:
nPress Help, scroll to Print Quality, press Menu, scroll to 
Calibrate for Paper, press Menu, print the references pages. 
Follow the instructions on these pages and adjust the transfer 
setting.
3.Replace imaging unit or transfer kit.
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							46Phaser  750 Color Printer 
Symptom: Pieces of print image missing all four 
colors
1.Pieces of the printed image are missing and reappear out of place, 
approximately 129 mm (5 in.) down the page. 
2.Media frequently wraps around the Fuser (Jam at C). 
Solution:
1.Choice of media; check the following:
nUse appropriate media in the correct tray location; refer to  
page 13 through page 28.
nPrint 10-20 blank pages of plain paper.
nTo avoid jams with Tektronix Transparencies, make sure 
that the logo strip is loaded face-down for the Multi-Purpose 
Tray and face-up for the Transparency tray.
2.If Jam at C, clear the media jam and run the front panelÕs Clean for 
Smudges cleaning routine (5 blank pages will print to clean the 
roller). Press OK and then press Confirm.
3.Replace Fuser.
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							User Guide47
Media Jams
Preventing media jams
nTo reduce the frequency of paper and transparency jams, 
use Tektronix media and occasionally clean the rollers. From the 
Help Menu, scroll to Print Quality and press OK. Scroll to the 
Help Pages and press OK. Scroll to the Paper Tips and print and 
read the tips to avoid media jams.
nWhen using the Multi-Purpose Tray, always set the media 
thickness switch for the media you are using. See page 17.
nIf the printer frequently reports Jam at Multi-Purpose, move the 
media thickness switch to a thicker setting.
Jam-Wrong Media
1.Check the trays to make sure that they contain the proper media.
a.Check all PAPER trays and remove all transparencies.
b.Check all TRANSPARENCY trays and remove all paper.
c.If printing from the Multi-Purpose Tray, make sure that the 
correct media type is selected from the front panel.
2.Open the left side door, remove the jammed media. See Jam at A 
illustrations.
Jams
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							48Phaser  750 Color Printer 
Jam at A
Solution 1
Open the left side door; remove the jammed media. 
Solution 2
Remove the media tray; remove the jammed media from inside the 
printer. 
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Jams
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							User Guide49
Jam at B (Lower Tray Assembly Only)
Solution 1
Open the lower left side door and remove the jammed media.
 
Solution 2
Remove the selected media tray (middle or lower tray) and remove the 
jammed media from inside the printer
. 
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A/LetterPaper
A/LetterPaper
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