Canon LBP 2900 2900i User's Guide

							Service Call6-20
Troubleshooting
6
When a Scanner Error or Service Error Appears
If a scanner error or service error appears, cycle the power of the printer using the 
following procedure. This may clear the message.
1Turn the power off, wait for at least 10 seconds, then turn the 
printer on again.
If the message does not reappear, continue using the printer as normal. If the 
message reappears, proceed to the next step.
2Note down the error code displayed in the Printer Status 
Window.
OFF
ON 
						

							Service Call6-21
Troubleshooting
6
3Turn the printer and computer off aa a a, remove the USB cable bb b b, 
and disconnect the power plug from the power outlet 
cc c c.
4Contact your local authorized Canon dealer.
When you contact your Canon dealer, please describe the problems that 
occurred and the error code that you noted down.
a
c
b
a 
						

							Print Quality Problems6-22
Troubleshooting
6
Print Quality Problems
If any problem occurs while you are using the printer, take the following measures 
depending on the symptoms.
IMPORTANT
•If a message appears in the Printer Status Window, follow the directions given in the 
message.
•In the case of a paper jam, refer to Paper Jams, on p. 6-3.
•If a problem occurs that is not described in this section, none of the remedies solve the 
problem, or you cannot determine the cause of the problem, contact your local 
authorized Canon dealer.
White Stripes Appear. (Printed Text is Faint or Patchy)
Cause The toner cartridge is running out of toner.
Remedy Remove the toner cartridge and gentle rock it from side to side 5 or 6 times, 
then reinsert the cartridge. If the same problem persists, replace the toner 
cartridge with a new cartridge. (See Replacing the Toner Cartridge, on p. 5-2.)
The overall printing is faint.
Cause 1 The [Toner Density] setting is not appropriate.
Remedy Drag the [Toner Density] slider in the printer driver toward [Dark].
In order to change the [Toner Density] setting, click the [Details] button in the 
[Quality] sheet to open the [Detailed Settings] dialog box.
Cause 2 [Use Toner Save] is selected.
Remedy Remove the checkmark from [Use Toner Save] in the printer driver.
In order to change the [Use Toner Save] setting, click the [Details] button in the 
[Quality] sheet to open the [Detailed Settings] dialog box.
The overall printing is dark.
Cause 1 The [Toner Density] setting is not appropriate.
Remedy Drag the [Toner Density] slider in the printer driver toward [Light].
In order to change the [Toner Density] setting, click the [Details] button in the 
[Quality] sheet to open the [Detailed Settings] dialog box. 
						

							Print Quality Problems6-23
Troubleshooting
6
Cause 2 The printer is exposed to direct sunlight or strong light.
Remedy Move the printer to a location that is not exposed to direct sunlight or strong 
light. Alternatively, separate the printer from the source of the strong light.
One portion of a page does not print.
Cause 1 The scale factor is incorrect.
Remedy 1 Clear the checkmark from [Manual Scaling] in the printer driver. When this 
checkbox is cleared, the scaling factor is automatically determined based on the 
[Page Size] and [Output Size] settings.
In order to update the [Manual Scaling] setting, open the [Page Setup] sheet.
Remedy 2 Place a checkmark next to [Manual Scaling] in the printer driver and specify an 
appropriate scale factor according to the paper size you are using.
In order to update the [Manual Scaling] setting, open the [Page Setup] sheet.
Cause 2 The paper is loaded in the wrong position.
Remedy Load the paper properly. (See Printing on Plain Paper, Heavy Paper, Label 
Paper, and Transparencies, on p. 2-13, Printing on Index Card, on p. 2-26, 
Printing on Envelopes, on p. 2-33, Printing on Custom Paper Sizes 
(Non-Standard Sizes), on p. 2-44)
Cause 3 Data was printed from an application with the margin settings set outside the 
printable area of the printer.
Remedy The printable area of the printer is bounded by margins of 4 mm at the top, 
6 mm at the bottom, and 5 mm on the left and right (for index card and 
envelopes, the top, bottom, left and right margins are all 10 mm). Make sure you 
have made sufficiently large margins in your data.
The front or back of printouts is stained with black dots.
Cause The fixing unit is dirty
Remedy Perform cleaning. (See Cleaning, on p. 5-14.)
The printing position is misaligned.
Cause The [Top Margin] and [Paper Position] settings in the application are configured 
incorrectly.
Remedy Update the [Top Margin] and [Paper Position] settings in the application. (See 
Instruction manual for the application.) 
						

							Print Quality Problems6-24
Troubleshooting
6
The next page is printed from halfway through the previous page.
Cause The [Line Spacing] or [Lines/Page] settings in the application are not configured 
correctly.
Remedy Update the [Line Spacing] and [Lines/Page] in the application so that data fits 
onto one page and print again. (See Instruction manual for the application.)
Nothing is printed on the paper.
Cause 1 The toner cartridge was installed with the sealing tape still attached.
Remedy Remove the toner cartridge, pull away the sealing tape, and reinstall the 
cartridge. (See Replacing the Toner Cartridge, on p. 5-2)
Cause 2 Multiple sheets of paper are feeding at the same time.
Remedy Thoroughly align the stack of paper and load it again. (See Printing on Plain 
Paper, Heavy Paper, Label Paper, and Transparencies, on p. 2-13, Printing on 
Index Card, on p. 2-26, Printing on Envelopes, on p. 2-33, Printing on 
Custom Paper Sizes (Non-Standard Sizes), on p. 2-44)
The paper comes out completely black.
Cause The drum in the toner cartridge has deteriorated.
Remedy Replace the toner cartridge with a new one. (See Replacing the Toner 
Cartridge, on p. 5-2.)
Printed pages have white specks.
Cause 1 The paper is inappropriate.
Remedy Replace the paper with one of the usable paper types and print again. (See 
Paper Requirements, on p. 2-2.)
Cause 2 The paper is damp because it was stored in poor conditions.
Remedy Replace the paper with new paper and print again. 
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. 5-2.) 
						

							Paper Problems6-25
Troubleshooting
6
Paper Problems
Paper comes out wrinkled.
Cause 1 Paper is loaded in the multi-purpose tray or manual feed tray at an angle.
Remedy Load the paper in the multi-purpose tray or manual feed tray straight. (See 
Printing on Plain Paper, Heavy Paper, Label Paper, and Transparencies, on p. 
2-13, Printing on Index Card, on p. 2-26, Printing on Envelopes, on p. 2-33, 
Printing on Custom Paper Sizes (Non-Standard Sizes), on p. 2-44.)
Cause 2 The paper is damp.
Remedy Replace the paper with paper from a new ream.
The paper curls.
Cause 1 The paper is inappropriate.
Remedy Replace the paper with paper that can be used with this printer. (See Paper 
Requirements, on p. 2-2.)
Cause 2 The [Paper Type] setting does not match the loaded paper.
Remedy Set the [Paper Type] in the printer driver to [Plain Paper L].
In order to change the [Paper Type] setting, open the [Paper Source] sheet.
White dust is attached to the printed transparencies.
Cause You printed the transparencies just after continuously printing on another type 
of paper.
Remedy If you print transparencies after printing continuously on normal paper, paper 
dust may adhere to the transparencies when they are output. If this is the case, 
use a soft cloth to wipe off the paper dust. 
						

							When Nothing Prints6-26
Troubleshooting
6
When Nothing Prints
Check the following items if nothing prints when you print from an application:
1Check if any error messages are displayed in the Printer 
Status Window.
If there is an error message displayed in the Printer Status Window, follow the 
directions given in the message. If there are no error messages, proceed to the 
next step.
2Print a test page.
Click [Print Test Page] in the [General] sheet in the [Printer Properties] dialog box.
■If the test page prints correctly
You can print from the CAPT software. To check the application software, check that all of 
the printer settings are configured appropriately.
■If the test page does not print
Uninstall the CAPT software, then reinstall it and print another test page. (See 
Uninstalling the CAPT software, on p. 3-72.) 
						

							Installation Problems6-27
Troubleshooting
6
Installation Problems
If you cannot install the USB Class Driver and LBP2900/2900i Printer Driver 
properly, use the following procedure to check for problems.
Uninstall the USB Class Driver➞Chapter 6: Uninstalling the USB 
Class Driver (p. 6-30)
Uninstall using the uninstaller➞Chapter 3: Uninstalling the CAPT 
Software (p. 3-72)
Uninstall using the uninstaller➞Chapter 3: Uninstalling the CAPT 
Software (p. 3-72)
Uninstall using the uninstaller➞Chapter 3: Uninstalling the CAPT 
Software (p. 3-72)
Erase [Canon LBP2900] from 
[Add or Remove Programs] 
([Add/Remove Programs] on 
Windows 98/Me/2000) 
➞Chapter 6: If Uninstallation Fails 
(p. 6-28)
Erase [Canon LBP2900] from 
[Add or Remove Programs] 
([Add/Remove Programs] on 
Windows 98/Me/2000) 
➞Chapter 6: If Uninstallation Fails 
(p. 6-28)
Reinstall the software➞Chapter 3: Installing the CAPT 
Software (p. 3-4)Reinstall the software➞Chapter 3: Installing the CAPT 
Software (p. 3-4)
[Canon Printer Uninstaller] 
appears under [All Programs] 
([Programs] on Widows 
98/Me/2000) in the [Start] menu[Canon LBP2900] appears under the 
[Add or Remove Programs] 
([Add/Remove Programs] on Windows 
98/Me/2000)
Reinstall the software➞Chapter 3: Installing the CAPT 
Software (p. 3-4)
Uninstall the USB Class Driver➞Chapter 6: Uninstalling the USB 
Class Driver (p. 6-30)
Reinstall the software➞Chapter 3: Installing the CAPT 
Software (p. 3-4)
[Canon Printer 
Uninstaller] appears under [All 
Programs] ([Programs] on 
Widows 98/Me/2000) in 
the [Start] menu[Canon LBP2900] 
appears under the [Add or 
Remove Programs] ([Add/Remove 
Programs] on Windows 
98/Me/2000)
Yes
NoNoIf you could 
not uninstall
If you 
could not 
uninstall If you could not 
install the software If you could not 
install the software
Yes
YesNo
NoYes 
						

							Installation Problems6-28
Troubleshooting
6
If Uninstallation Fails
If you cannot uninstall the CAPT software using the uninstaller that was created 
during installation, use the following procedure to uninstall the CAPT software from 
[Add or Remove Programs] ([Add/Remove Programs] for Windows 98/Me/2000).
1From the [Start] menu, select [Control Panel], and then click 
[Add or Remove Programs].
For Windows 98/Me/2000: From the [Start] menu, select [Settings] ➞ [Control 
Panel], and then click [Add/Remove Programs].
2Select [Canon LBP2900] in the [Add or Remove Programs] 
dialog box, then click [Change/Remove]. 
For Windows 2000: Select [Canon LBP2900] in the [Add/Remove Programs] 
dialog box, then click [Change/Remove].
For Windows 98/Me: Select [Canon LBP2900] in the [Add/Remove Programs] 
dialog box, then click [Add/Remove].
NOTE
If [Canon LBP2900] does not appear in the [Add or Remove Programs] dialog box 
(the [Add/Remove Programs] dialog box for Windows 98/Me/2000), perform (see 
Uninstalling the USB Class Driver, on p. 6-30) then reinstall the CAPT software. 
						

							Installation Problems6-29
Troubleshooting
6
3Select the name of your printer, then click [Delete].
4Click [Yes].
The uninstallation process begins. Please wait a moment.
5Click [Exit].
The [Delete Printer] dialog box closes.
6Restart Windows.