Canon LBP7210Cdn Manual page 460

If you perform the above procedure, residual images may appear on non-printed
areas.
Solution 2 Perform the following procedure in the printer driver.
1. Display the [Finishing] sheet.
2. Click [Advanced Settings].
3. Set [Special Print Mode] to [Special Settings 6].
Normally, use the printer with [Special Print Mode] set to [Off]. Specify [Special Settings
6] only if the described problems occur.
Paper Creases
Paper is not loaded properly in the paper drawer or multi-purpose tray.
Cause 1
Solution Load the paper properly in the paper drawer or multi-purpose tray.
Loading Standard Size Paper (Other Than Index Cards and Envelopes)
Loading Index Cards
Loading Envelopes
Loading Custom Size Paper (Non-Standard Size Paper)
Paper is damp due to being stored under unsuitable conditions.
Cause 2
Solution Replace the paper with new paper in an unopened package.
Storing Paper or Printouts
Cause 3 Appropriate paper is not being used.
Solution Replace the paper with that which can be used with this printer.
Usable Paper and Unusable Paper
Cause 4 There is a foreign object inside the printer.
Solution Remove the foreign object inside the printer.
Depending on the paper type or the operating environment (high humidity or high
Cause 5
temperature environment), the paper may crease.
Solution 1 Perform the following procedure in the printer driver.
1. Display the [Paper Source] sheet.
2. Set [Paper Type] as follows.
[Coated Paper 2] [Coated Paper 3]
[Coated Paper 3] [Coated Paper 4]
Current Setting Changed Setting
[Plain Paper L] [Plain Paper L2]
[Plain Paper] [Plain Paper L]
[Heavy Paper 1] [Plain Paper]
[Heavy Paper 2] [Heavy Paper 1]
[Heavy Paper 3] [Heavy Paper 2]
[Envelope H] [Envelope]
[Coated Paper 2] [Coated Paper 1]