Adjusting the PrintheadAdjusting the PrintheadAdjusting the Printhead ................................................................................................................................................ 476Automatic Adjustment to Straighten Lines and Colors ............................................................................ 476Manual Adjustment to Straighten Lines and Colors .................................................................................. 477Adjusting Line Misalignment ....................................................................................................................................... 479Troubleshooting Paper Abrasion and Blurry Images ....................................................................................... 481Adjusting the PrintheadAdjusting the PrintheadIf printed documents are affected by the following problems, try adjusting the printhead.• Printing is faint or affected by banding in different colorsExecute Nozzle Check to check for printhead nozzle clogging.For instructions, see "Checking for Nozzle Clogging." ➔P.500• Printed vertical lines are warped or colors are out of alignmentExecute Head Posi. Adj. to adjust the printhead position.Normally, execute Auto(Standard) or Auto(Advanced). However, when using special paper or if printing isnot improved after executing Auto(Advanced), try Manual.(See "Automatic Adjustment to Straighten Lines and Colors.") ➔P.476(See "Manual Adjustment to Straighten Lines and Colors.") ➔P.477• Printed lines are misalignedExecute Head Inc. Adj. to adjust the angle of inclination of the printhead.Even slight misalignment can be corrected.(See "Adjusting Line Misalignment.") ➔P.479• Paper rubs against the printhead, or image edges are blurredExecuting Head Height to adjust the printhead height may improve printing results.(See "Troubleshooting Paper Abrasion and Blurry Images.") ➔P.481Automatic Adjustment to Straighten Lines and ColorsAutomatic Adjustment to Straighten Lines and ColorsIf printed vertical lines are warped or colors are out of alignment, execute Head Posi. Adj. to adjust the Printheadalignment.There are two modes for automatic Printhead adjustment: Auto(Standard) and Auto(Advanced).Auto(Standard) will fix most slight image distortion or color misalignment, but if not, try Auto(Advanced).Use Auto(Standard) or Auto(Advanced) to have the printer print and read a test pattern for automatic adjustmentof the Printhead.Important• This function is not available with Tracing Paper, Translucent Matte Film, or Clear Film.• If adjustment is not possible as expected using special media, try another type of paper, or try Manual adjust-ment.(See "Manual Adjustment to Straighten Lines and Colors.") ➔ P.477Note• Because the results of adjustment vary depending on the type of paper used for adjustment, use the same type ofpaper as you will use for printing.• Use Auto(Standard) if you have switched to another type of paper or if you want the boundaries between colors toappear as clear as possible.• Use Auto(Advanced) to fine-tune the space between nozzles or colors if you have switched the printhead or ifclearer printing is required. We recommend Auto(Advanced) for printing at the highest level of quality.Adjusting the Printhead iPF780User's GuideAdjustments for Better Print Quality Adjusting the Printhead476
