Canon imagePROGRAF GP-4000 Online Manual page 706

Is the paper loaded properly?
Check 3
If not loaded properly, paper can buckle and rub against the Print head.
Reload the paper.
Loading the Upper Roll on the Printer
Loading the Lower Roll on the Roll Unit (Option)
Loading Sheets in the Printer
Is the Print head height set too low?
Check 4
Set 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 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 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 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.
To keep track of the amount of roll paper remaining, set Manage remaining roll amount to Auto estimate or
Disable before loading the roll paper, and then restore the setting of Manage remaining roll amount to Auto
estimate or Barcodes after the roll paper is loaded.
In addition, set Media type selection method to Manual or Use current media type.
Specifying the Cutting Method for Rolls
Keeping Track of the Amount of Roll Paper Left
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