[E-06] Loading Paper and Registering the Paper Size
The method for loading paper varies depending on the paper source and the paper size.
Loading Standard Size Paper in the Paper Cassette
Usable standard paper size
- A4 (210.0 mm × 297.0 mm)
- B5 (182.0 mm × 257.0 mm)
- A5 (148.0 mm × 210.0 mm)
- Legal (215.9 mm × 355.6 mm)
- Letter (215.9 mm × 279.4 mm)
- Executive (184.1 mm × 266.7 mm)
- Statement (139.7 mm × 215.9 mm)
- Foolscap (215.9 mm × 330.2 mm)
- 16K (195.0 mm × 270.0 mm)
- Envelopes
- Envelope DL (110.0 mm × 220.0 mm)
- Envelope COM10 (104.9 mm × 241.3 mm)
- Envelope C5 (162.0 mm × 229.0 mm)
- Envelope Monarch (98.5 mm × 190.5 mm)
- Envelope B5 (176.0 mm × 250.0 mm)
- Index Card (76.2 mm × 127.0 mm)
Loading Paper in the Paper Cassette
Remove the paper cassette.
Gently pull out the paper cassette with both hands.

CAUTION
Be sure to remove the paper cassette.
If paper is loaded with the paper cassette only partially open, the paper cassette may fall out or the printer may fall over, resulting in personal injury.
Slide the paper guides to the position of the size of the paper to be loaded.
- Slide the side paper guides so that they are aligned with the paper size (A).
- While holding the lock release lever at the front, slide the paper guide so that it is aligned with the paper size (B).
NOTE
Loading Legal size paper
Adjust the length of the paper cassette while holding the lock release lever (A) at the front right of the paper cassette.
When you extend the paper cassette, the extended portion sticks out in front of the printer.
Use the paper cassette cover.
"Confirming the Supplied Accessories"
Using the paper cassette guide
When loading standard size paper, slide the paper guides to match the position of the loaded paper.
- A5
- B5
- Executive
- Letter
- A4
Load the paper.
Align the paper with the rear of the paper cassette.

CAUTION
Precautions when loading paper
Be careful not to cut your hands with the edges of the paper.
NOTE
Align the paper stack when loading.
- Fan the paper thoroughly and align the edges of the stack on a flat surface before loading the paper.
- If the paper stack is not aligned, several sheets of paper may be fed at a time.
Loading paper with a front and back
When using paper with a letterhead or logo, load the paper as follows.
- Load the paper with the side to be printed facing up.
- Load the paper with the letterhead or logo facing the rear or left side of the paper cassette.
Place the paper under the hooks (A).
Make sure that the paper stack does not exceed the marks on the load limit guides (B).
NOTE
Paper cassette capacity
You can load approximately 150 sheets of paper in the paper cassette.
(Plain paper: 80 g/m2)
Insert the paper cassette into the printer.
Push the paper cassette into the printer firmly until it is all the way in.

CAUTION
Precautions when inserting the paper cassette
When inserting the paper cassette, be careful not to catch your fingers.
Registering the Paper Size
In the following cases, register the size of the paper loaded in the paper cassette.
- When loading paper other than A4 size paper for the first time
- When changing the size of the paper in the paper cassette
Open the Printer Status Window.
- Click the icon of the printer (
) in the taskbar.
- Select [Canon LBP5050].
Open the [Cassette Settings] dialog box.
- Click [Options].
- Click [Device Settings].
- Click [Cassette Settings].
Register the paper size.
- Select the paper size.
- Click [OK].
INFORMATION
Checking the paper size
By default, the printer checks whether the [Output Size] setting in the printing preferences and the size of the paper loaded in the paper cassette are the same.
If the paper sizes do not match, the following occurs.
- A message appears in the Printer Status Window.
- Printing pauses.
To resume printing, take one of the following actions.
- Print using the paper size set in the printing preferences
- Load the correct paper into the paper cassette.
- Set the correct paper size for [Cassette Settings].
- Print using the paper loaded in the paper cassette
Click [
] (Resolve Error).
To print using the loaded paper without checking the paper size
Perform the following procedure to set the printer not to check the paper size.
- Open the printing preferences dialog box.
"Displaying the Printing Preferences (Document Properties) Dialog Box"
- Click the [Finishing] tab → [Finishing Details].
- Clear the [Detect Paper Size] check box.
When this check box is cleared, a message is not displayed even if the paper sizes do not match.
When [Paper Source] on the [Paper Source] sheet is set to [Auto], the printer checks the paper size regardless of the preceding setting.
About [Free Size]
If you select [Free Size] for [Cassette Settings], you do not have to change the setting each time you load different size paper.
However, if you select [Free Size], make sure that the [Output Size] setting on the [Page Setup] sheet matches the paper loaded in the paper cassette.
Loading Custom Size Paper or Paper at a Size of Statement, Foolscap or 16K in the Paper Cassette
Size of usable custom size paper
- Width: 76.2 to 215.9 mm
- Length: 127.0 to 355.6 mm
Usable paper types
"Paper Requirements"
Loading Paper in the Paper Cassette
Remove the paper cassette.
Gently pull out the paper cassette with both hands.

CAUTION
Be sure to remove the paper cassette
If paper is loaded with the paper cassette only partially open, the paper cassette may fall out or the printer may fall over, resulting in personal injury.
Load the paper.
Align the paper with the rear of the paper cassette.

CAUTION
Precautions when loading paper
Be careful not to cut your hands with the edges of the paper.
NOTE
Align the paper stack when loading.
- Fan the paper thoroughly and align the edges of the stack on a flat surface before loading the paper.
- If the paper stack is not aligned, several sheets of paper may be fed at a time.
Loading paper with a front and back
When using paper with a letterhead or logo, load the paper as follows.
- Load the paper with the side to be printed facing up.
- Load the paper with the letterhead or logo facing the rear or left side of the paper cassette.
Slide the paper guides to the position of the size of the loaded paper.
- Slide the side paper guides so that they are aligned with the width of the paper.
- While holding the lock release lever at the front, slide the paper guide so that it is aligned with the length of the paper size.
Place the paper under the hooks (A).
Make sure that the paper stack does not exceed the marks on the load limit guides (B).
NOTE
Paper cassette capacity
You can load up to approximately 150 sheets of paper in the paper cassette.
(Plain paper: 80 g/m2)
Insert the paper cassette into the printer.
Push the paper cassette into the printer firmly until it is all the way in.

CAUTION
Precautions when inserting the paper cassette
When inserting the paper cassette, be careful not to catch your fingers.
Registering Custom Size Paper or Paper at a Size of Statement, Foolscap or 16K
To use custom size, Statement, Foolscap, or 16K paper that is not registered in the printer driver, use the following procedure to register the paper size.
After registering the paper size, you can select the paper from the list of available paper sizes.
IMPORTANT
Precautions when registering custom size paper
- To register custom size paper, be sure to log on as a user with administrative rights.
- A user without administrative rights cannot register custom size paper.
- Contact your system administrator if you are not sure about your administrative rights.
Open the Printer Status Window.
- Click the icon of the printer (
) in the taskbar.
- Select [Canon LBP5050].
Open the [Cassette Settings] dialog box.
- Click [Options].
- Click [Device Settings].
- Click [Cassette Settings].
Register the paper size.
- Select the paper size.
- Click [OK].
Open the [Printers and Faxes] or [Printers] folder.
- Windows Vista: [Start] → [Control Panel] → [Printers]
- Windows XP Professional and Server 2003: [Start] → [Printers and Faxes]
- Windows XP Home Edition: [Start] → [Control Panel] → [Printers and Other Hardware] → [Printers and Faxes]
- Windows 2000: [Start] → [Settings] → [Printers]
Open the printing preferences dialog box.
- Select [Canon LBP5050].
- Click [File].
- Click [Printing Preferences].
NOTE
If you are using Windows Vista
By default, the menu bar is not displayed.
Use the following procedure to display the menu bar.
- Click [Organize] on the toolbar.
- Click [Layout].
- Select [Menu Bar].
Open the [Custom Paper Size Settings] dialog box.
- Click the [Page Setup] tab.
- Click [Custom Paper Size].
Select and enter the following options as needed.
- [Name of Custom Paper Size]: Name of the custom paper size
- [Unit]: Unit of the paper size
- [Paper Size]: Height and width of the custom paper
NOTE
Setting restrictions
The height value of the paper size must be greater than the width value.
About [Name of Custom Paper Size]
- The name must not exceed 31 characters.
- The number of custom paper sizes that can be entered depends on the system environment.
Click [Register].
The name and size of the registered custom paper are displayed in [Paper List].
INFORMATION
Checking the paper size
By default, the printer checks whether the [Output Size] setting in the printing preferences and the size of the paper loaded in the paper cassette are the same.
If the paper sizes do not match, the following occurs.
- A message appears in the Printer Status Window.
- Printing pauses.
To resume printing, take one of the following actions.
- Print using the paper size set in the printing preferences
- Load the correct paper into the paper cassette.
- Set the correct paper size for [Cassette Settings].
- Print using the paper loaded in the paper cassette
Click [
] (Resolve Error).
To print using the loaded paper without checking the paper size
Perform the following procedure to set the printer not to check the paper size.
- Open the printing preferences dialog box.
"Displaying the Printing Preferences (Document Properties) Dialog Box"
- Click the [Finishing] tab → [Finishing Details].
- Clear the [Detect Paper Size] check box.
When this check box is cleared, a message is not displayed even if the paper sizes do not match.
When [Paper Source] on the [Paper Source] sheet is set to [Auto], the printer checks the paper size regardless of the preceding setting.
About [Free Size]
If you select [Free Size] for [Cassette Settings], you do not have to change the setting each time you load different size paper. However, if you select [Free Size], make sure that the [Output Size] setting on the [Page Setup] sheet matches the paper loaded in the paper cassette.
Loading Index Cards or Envelopes in the Paper Cassette
The following describes how to load envelopes in the paper cassette.
Remove the paper cassette.
Gently pull out the paper cassette with both hands.

CAUTION
Be sure to remove the paper cassette.
If paper is loaded with the paper cassette only partially open, the paper cassette may fall out or the printer may fall over, resulting in personal injury.
Load the envelopes.
Align the envelopes with the rear of the paper cassette.

CAUTION
Precautions when loading envelopes or index cards
Be careful not to cut your hands with the edges of the envelopes or index cards.
NOTE
Aligning the envelopes
- Place the stack of envelopes on a flat surface and flatten them to release any remaining air.
- Be sure that the edges are pressed tightly.
- Loosen any stiff corners of the envelopes and flatten any curls.
- Align the edges of the envelopes on a flat surface.
Loading envelopes into the paper cassette
Load the envelopes as follows.
- When loading envelopes at sizes of DL, COM10, C5, Monarch, or B5, load them so that the side for writing the address (side without glue) is facing up.
- Load envelopes with the flap facing toward the left when viewed from the front of the printer.
Loading index cards into the paper cassette
Load index cards in portrait orientation.
Align the position of the paper guides with the size of the envelopes.
- Slide the side paper guides so that they are aligned with the width of the envelopes.
- While holding the lock release lever at the front, slide the paper guide so that it is aligned with the length of the envelopes.
Place the envelopes under the hooks (A).
Make sure that the paper stack does not exceed the marks on the load limit guides (B).
NOTE
Paper cassette capacity
You can load approximately 10 envelopes or 15 index cards in the paper cassette.
Insert the paper cassette into the printer.
Push the paper cassette into the printer firmly until it is all the way in.

CAUTION
Precautions when inserting the paper cassette
When inserting the paper cassette, be careful not to catch your fingers.
Loading Standard Size Paper, Custom Size Paper, Paper at a Size of Statement, Foolscap or 16K, Index Cards, or Envelopes in the Manual Feed Slot
Usable standard paper size
- A4 (210.0 mm × 297.0 mm)
- B5 (182.0 mm × 257.0 mm)
- A5 (148.0 mm × 210.0 mm)
- Legal (215.9 mm × 355.6 mm)
- Letter (215.9 mm × 279.4 mm)
- Executive (184.1 mm × 266.7 mm)
- Statement (139.7 mm × 215.9 mm)
- Foolscap (215.9 mm × 330.2 mm)
- 16K (195.0 mm × 270.0 mm)
- Envelopes
- Envelope DL (110.0 mm × 220.0 mm)
- Envelope COM10 (104.9 mm × 241.3 mm)
- Envelope C5 (162.0 mm × 229.0 mm)
- Envelope Monarch (98.5 mm × 190.5 mm)
- Envelope B5 (176.0 mm × 250.0 mm)
- Index Card (76.2 mm × 127.0 mm)
Size of usable custom size paper
- Width: 76.2 to 215.9 mm
- Length: 127.0 to 355.6 mm
Usable paper types
"Paper Requirements"
Slide the paper guides of the manual feed slot to the outside.
Align the paper guides to a width slightly larger than the width of the paper.
Load one sheet of paper.
Insert the paper into the manual feed slot until it catches. The paper is fed to the printer automatically. (The paper is not fed when the printer is printing or during sleep mode.)
Load only one sheet of paper in the manual feed slot at a time.
Align the position of the paper guides with the size of the paper.
IMPORTANT
Be sure to align the paper guides with the width of the paper.
If the paper guides are not aligned properly with the paper, this may result in paper jams.
NOTE
Loading paper with a front and back
When using paper with a letterhead or logo, load the paper as follows.
- Load the paper with the side to be printed facing up.
- Insert the paper by the side with the letterhead or logo.
When paper is loaded in the manual feed slot
You do not need to register the paper size.
Select the appropriate paper size in the application, and then print the document.
"Basic Printing Procedure"