4 Troubleshooting

Print quality problems

Black-and-white prints

In the front panel’s Printer Defaults menu, check the default setting for Print

instead of color

Mode. If it is set to Black Only, change the setting to Color.

 

 

 

If your printer is a Phaser 740L printer (check the nameplate on the front of the printer), it

 

will only print in black and white until you add color with the 740LCS Color Kit.

 

 

Print shows a single color (a)

Replace the color Toner Cartridge.

that is not uniform

 

or

 

Print shows a single color (b)

 

with many vertical streaks

 

(both light and dark) of

 

slightly different density and

 

non-uniform color.

 

a

b

Print appears faded in a single color.

Check the density setting: From the front panel, access the Calibrate Colors menu and print the Color Reference Page. Compare the settings to the examples on the Color Density Samples and, if necessary, adjust the density in the front panel. Refer to page 119.

Replace the color Toner Cartridge soon (depending on the complexity of your prints, you can continue to print up to 100 more pages).

A single color has a wide, light, vertical streak.

Replace the color Toner Cartridge.

72Phaser 740 and 740L Laser Printers

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Tektronix 740L manual Print quality problems