Canon imageCLASS D661, Reference Manual

Page: 65 / 82

6-8
❚
If the documents have black streaks or appear dirty after you feed them in the ADF.
The ADF roller is dirty.
• Clean the ADF roller. (
→
p. 5-3)
• For additional troubleshooting,
→
Print Quality Problems.
❚
The print quality is not what you expect; print is not clear, has missing dots or white
streaks.
The size, thickness and type of the paper you are using are not within the specifications of the machine.
• Check that the paper you are using is supported by the specifications of the machine. (
→
p. 2-1)
The cartridge may not be installed properly.
• Make sure the cartridge is installed properly. (
→
Set-up Instructions)
The toner in the cartridge may be low.
• Refer to “When to Replace the Cartridge” (
→
p. 5-4) and replace if necessary. (
→
p. 5-7)
The copy exposure may not be adjusted correctly.
• Adjust exposure correctly. (
→
p. 4-6)
❚
Copies are dirty.
The platen glass or rear side of the ADF may be dirty.
• Clean the platen glass or rear side of the ADF. (
→
p. 5-1)
The rollers inside the machine are dirty.
• Clean the rollers. (
→
p. 5-2)
There may be a scratch on the cartridge.
• Replace the cartridge with a new one.
Condensation has built up inside the machine.
• Allow at least two hours for the machine to adjust to room temperature before attempting to use it.
The machine may be installed in a location where the floor or foundation is unstable.
• Install the machine in a proper location. (
→
p. 1-1)
❚
Black lines on the copy
The read area of the platen glass is dirty.
• Clean the read area of the platen glass. (
→
p. 5-2)
❚
Copies are too dark or too light.
The copy exposure may not be adjusted correctly.
• Adjust the copy exposure correctly in the
PRINT EXPOSURE
of the
COMMON SETTINGS
of the Additional
Functions. (
→
p. 7-2)
TONER SAVER MODE
may be set to
ON
in the
COMMON SETTINGS
of the Additional Functions.
• Set
TONER SAVER MODE
to
OFF
. (
→
p. 7-2)
Print Quality Problems
NOTE