Canon LBP3310 User Manual page 362

The overall print result is faint.
Cause 1 The setting for [Toner Density] is not appropriate.
Remedy Perform the following procedure in the printer driver.
1.
Display the [Quality] sheet.
2.
Click [Details].
3.
Drag the [Toner Density] slider toward [Dark].
Cause 2 [Toner Save] is enabled.
Remedy Perform the following procedure in the printer driver.
1.
Display the [Quality] sheet.
2.
Click [Details].
3.
Clear the [Toner Save] check box.
The overall print result is dark.
Cause 1 The setting for [Toner Density] is not appropriate.
Remedy Perform the following procedure in the printer driver.
1.
Display the [Quality] sheet.
2.
Click [Details].
3.
Drag the [Toner Density] slider toward [Light].
Cause 2 The printer is exposed to direct sunlight or strong light.
Remedy Move the printer to a place where it will not be exposed to direct sunlight or
strong light. Alternatively, move the strong light source away from the printer.
The print is uneven.
Cause 1 The toner cartridge is almost out of toner.
Remedy Take the toner cartridge out of the printer, shake it gently 5 or 6 times to evenly
distribute the toner, and then reinstall the toner cartridge.
If this does not solve the problem, replace the toner cartridge with a new
one.(See "Replacing the Toner Cartridge," on p. 7-2)
Cause 2 Paper is too moist or too dry.
Remedy Replace the paper with new paper in an unopened package. (See "Paper
Requirements," on p. 3-2)
Cause 3 The drum in the toner cartridge has deteriorated.
Remedy Replace the toner cartridge with a new one. (See "Replacing the Toner
Cartridge," on p. 7-2)
Print Quality Problems
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