Canon GP-300 Online Manual page 615

If not loaded properly, paper can buckle and rub against the Print head.
Reload the paper.
Loading Rolls in the Printer
Loading Sheets in the Printer
Is the Print head height set too low?
Check 4
Set Paper thickness (head height) in the touch screen menu to the value higher than the current one.
Troubleshooting Paper Abrasion and Blurry Images
Is the paper thick, or a type that curls easily or is prone to buckling after
Check 5
absorbing ink?
If using paper-based printing material such as Heavyweight Coated Paper, set Transport unit vacuum strength
in the touch screen menu to Medium-strong or Strong.
If that does not resolve the problem, increase the Paper thickness (head height) setting in the touch screen
menu.
Adjusting Vacuum Strength
Troubleshooting Paper Abrasion and Blurry Images
If using film-based printing material such as CAD Tracing Paper, set the Transport unit vacuum strength in the
touch screen menu to Standard, Medium-strong, or Strong.
If that does not resolve the problem, increase the Paper thickness (head height) setting in the touch screen
menu.
Adjusting Vacuum Strength
Troubleshooting Paper Abrasion and Blurry Images
If using paper thinner than 0.004 inches (0.1 mm), set Transport unit vacuum strength in the touch screen
menu to Weak.
If that does not resolve the problem, increase the Paper thickness (head height) setting in the touch screen
menu.
Adjusting Vacuum Strength
Troubleshooting Paper Abrasion and Blurry Images
Does the paper have a strong curl at the front edge or is it buckled?
Check 6
Set Cutting mode in the touch screen menu to User cut, and set leading edge detection to Do not detect.
In this case, to keep track of the amount of remaining roll paper, set Manage remaining roll amount to OFF
before loading the roll paper, and then restore the setting of Manage remaining roll amount to ON after the roll
paper is loaded.
Specifying the Cutting Method for Rolls
Keeping Track of the Amount of Roll Paper Left
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