Canon PIXMA iP1500 Service Manual - Page 18

(6) Print head alignment The printer has a print head alignment function (print head position adjustment function). As it is not necessary to perform print head alignment at setup or installation of the printer, the function is only briefly introduced at installation. Print head alignment: This is a function to correct displacements between the nozzle lines of the print head, and incorrect print position at bi-directional printing. The adjustment is conducted using the printed head position adjustment pattern. A: Print head alignment between black even and odd nozzles B: Print head alignment between cyan even and odd large nozzles C: Print head alignment between magenta even and odd large nozzles D: Print head alignment between cyan even and odd small nozzles E: Print head alignment between magenta even and odd small nozzles F: Print head alignment in bi-directional black printing G: Print head alignment of large nozzles in color bi-directional printing H: Print head alignment between black and photo black nozzles I: Print head alignment of small nozzles in color bi-directional printing J: Print head alignment between color large and small nozzles K: Print head alignment between magenta large and small nozzles Perform from the printer driver's Maintenance. (At initial set-up by the user, notice to perform the print head alignment is displayed in the Status Monitor.) - The line is not straight. -> Perform print head alignment from the printer driver. - Printout is granulated. -> Disable the Quiet mode. ( 18 / 21 )