Canon imageCLASS D1650 All-in-One Monochrome Laser Printer - Manual (Page 619)

Are you using appropriate paper?
● Check usable paper, and replace with appropriate paper.
Available Paper(P. 675)
Loading Paper(P. 139)
Does a void appear at the center of dark text or lines?
● Change the setting for . Setting to may solve the problem.
(P. 480)
● If you set to , the print density may vary depending on the ambient humidity.
Is the machine installed in an environment where the temperature changes
rapidly and drastically?
● When the temperature changes rapidly in the environment where the machine is installed, condensation
occurs, which may cause fading or bleeding in images and text. If is set to ,
condensation inside the machine will be removed. Condensation removal may be performed automatically
due to temperature change.
(P. 484)
● While condensation removal is being performed, printing may not be performed properly and blank paper
may be output.
● If you set to , you need to keep the machine turned ON to maintain the effect of condensation
removal.
Are you using the machine in an environment with high humidity?
● Change the setting for . Setting to may solve the problem.
(P. 480)
● If you set to , the print density may vary depending on the ambient humidity.
Is the amount remaining in toner cartridge running low?
● Check how much the amount remaining in toner cartridges is left, and replace the toner cartridges as
necessary.
● Regardless of the displayed toner level, the toner cartridge may have reached the end of its lifetime due to
the machine's environmental conditions and the deteriorated materials in the cartridge. Replace the toner
cartridge.
Replacing the Toner Cartridge(P. 566)
Troubleshooting
611