Canon LBP 2900 2900i User's Guide

							Handling the Printer5-28
Routine Maintenance
5 
						

							CHAPTER
6-1
6Troubleshooting
This chapter describes the remedies for problems such as paper jams or poor print quality.
Troubleshooting Map  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Paper Jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Service Call  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18
When a Fixing Unit Error Appears  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-19
When a Scanner Error or Service Error Appears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20
Print Quality Problems  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
Paper Problems  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
When Nothing Prints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26
Installation Problems  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27
If Uninstallation Fails. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-28
Uninstalling the USB Class Driver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-30
Problems During Local Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-34
Problems Installing a Shared Printer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-34
Miscellaneous Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35 
						

							Troubleshooting Map6-2
Troubleshooting
6
Troubleshooting Map
If you have any problems while you are using the printer, use the flow chart shown 
below to determine the cause of the problem.
The toner density is set too 
light
➞Chapter 4: Specifying the Print 
Quality (p. 4-44)
The toner is running out
➞Chapter 5: Replacing the Toner 
Cartridge (p. 5-2)
The printer is not connected to the 
computer
➞Chapter 1: Connecting to a Computer 
(p. 1-12)
Follow the directions displayed in 
the Printer Status Window to 
resolve the problem
➞Chapter 4: Printer Status Window 
(p. 4-56)
The power cord is not connected
The power switch is off
➞Chapter 1: Turning the Printer On and Off 
(p. 1-15)
The printer driver is not properly 
installed
➞Chapter 6: Installation Problems (p. 6-27)
The installation environment is 
bad
➞Getting Started Guide
Miscellaneous Problems
➞Chapter 6: Print Quality Problems 
(p. 6-22)Paper Problems
➞Chapter 6: Paper Problems (p. 6-25)
The printer driver is not properly 
installed
➞Chapter 6: Installation Problems (p. 6-27)
Cannot Print
The printing 
quality is poor
An error is 
displayed in the Printer 
Status Window
The printer 
driver cannot be 
usedYes
Yes
Yes
Yes No
No
No
NoNoNo No
No
No 
						

							Paper Jams6-3
Troubleshooting
6
Paper Jams
The following message is displayed in the Printer Status Window when a paper jam 
occurs during printing.
WARNING
There is a high-voltage unit inside this product. When you are clearing paper 
jams or inspecting the interior of the printer, make sure that no necklaces, 
bracelets, or other metallic objects come into contact with the inside of the 
printer. If this does happen, it may cause burns or an electrical shock.
CAUTION
•Be careful to avoid staining your clothes or hands with toner while you are 
clearing a paper jam. If you get any toner on your hands or clothes, wash it off 
immediately with cold water. Do not rinse with hot water, as this can fix the 
toner, creating a stain that cannot be removed.
•When you are clearing jammed paper from inside the printer, remove the paper 
gently so that toner that is on the jammed paper does not spray out of the 
printer. This could lead to toner getting in your eyes or mouth. If toner gets into 
your eyes or mouth, wash it out immediately with cold water and consult a 
doctor.
•When removing jammed paper, take care not to cut your hands with the edges 
of the paper. 
						

							Paper Jams6-4
Troubleshooting
6
•The area around the fixing unit inside the printer becomes hot during use. If you 
are inspecting the inside of the printer while you are clearing a paper jam, etc., 
take care not to touch the area around the fixing unit. Doing so can cause burns.
•Keep your hands or clothing away from the roller in the output area after 
removing jammed paper completely. Even if the printer is not printing, sudden 
rotation of the roller may catch your hands or clothing, resulting in personal 
injury.
IMPORTANT
•Never touch any of the high voltage parts inside the top cover. Doing so may damage the 
printer.
•If you tug too hard on jammed paper, the paper can tear and the internal components 
may be damaged. When you pull out jammed paper, pull it out in the correct direction 
depending on the location of the jam.
•If paper is torn, be sure to find and remove any remaining pieces of paper.
•If you clear the jammed paper without opening the top cover, the error message may not 
clear. In this case, open and close the top cover once.
High Voltage Electrical 
Contacts 
						

							Paper Jams6-5
Troubleshooting
6
•Do not touch the transfer roller under any circumstances. Doing so may cause the print 
quality to deteriorate.
•Do not touch the paper feed roller under any circumstances. Doing so may cause the 
paper feed mechanism to malfunction.
•The area around the output tray becomes very hot during printing and directly after 
printing. When you are collecting paper from the output tray or clearing a paper jam, be 
careful not to touch the area around the output tray.
Transfer Roller
Paper Feed Roller 
						

							Paper Jams6-6
Troubleshooting
6
1Open the top cover.
Grasp the groove on the right side of the top cover and open the cover until it 
stops.
IMPORTANT
Even if you can see the jammed paper from the output tray, do not pull on the 
paper. Make sure you open the top cover and remove the toner cartridge before 
attempting to clear the jam. 
						

							Paper Jams6-7
Troubleshooting
6
2Lift the toner cartridge in the direction of the arrows aa a a, then 
pull it out 
bb b b.
IMPORTANT
•If you touch the inner drum with your hand or scratch it, the printing quality will be 
degraded. Do not touch or open the protective shutter of the drum under any 
circumstances. Be careful not to hold or touch any parts other than as directed. 
Doing so may damage the toner cartridge.
a
b
Drum Protective Shutter 
						

							Paper Jams6-8
Troubleshooting
6
•Do not expose the toner cartridge to direct sunlight or strong light.
•Be careful not to hold or touch sensitive areas such as the sensor or electrical 
contacts. Doing so may damage the printer.
3Place the toner cartridge into the protective bag.
Electrical 
Contacts
Electrical 
Contacts 
						

							Paper Jams6-9
Troubleshooting
6
4Remove any paper from the multi-purpose tray.
Pull out the rear paper guide a, and then remove the paper b.
IMPORTANT
Even if the paper is jammed in the multi-purpose tray, do not clear the jam, but 
continue with the following steps.
b
a