Toner Smear
If toner smears appear on the leading edge (as it passes through the printer) of the paper, the paper guides are dirty. Clean the printer as described in Chapter 7.
If toner on the paper is loose or can be wiped off easily, your fuser may be damaged. Contact your authorized HP dealer or your HP service representative.
Background Gray Toner Shading
If the amount of background toner shading becomes unacceptable:
∙Lower the density setting. (See “Print Density” earlier in this chapter.) This decreases the amount of background shading.
∙Replace the toner cartridge.
∙Change the paper to a lighter basis weight.
∙Check the printer’s environment; very dry (low humidity) conditions can increase the amount of background shading.
If these procedures do not fix the problem, the transfer roller may need to be replaced. Contact your authorized HP dealer or your HP service representative.
Repetitive Defects
If any of the following marks appear repeatedly on the printed side of the page, replace the toner cartridge:
∙If a repetitive mark occurs every 3 3/4 inches (94 mm) in the direction the paper passes through the printer, the toner cartridge drum is damaged.
∙If a repetitive mark occurs every 2 inches (51 mm) in the direction the paper passes through the printer, the developer roller is damaged.
∙If black lines occur every 1 1/2 inches (38 mm) on the back of the page, the charger roller is damaged.
If defects occur every 2 3/8 inches (61 mm) on the back of the page, the transfer roller has toner on it. This problem will likely correct itself after a few pages.
6 Print Quality
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Print Quality
