Epson Stylus Pro 7800 Professional Edition Quick Reference Guide - Page 5

Checking, Cleaning, and Aligning the Print Head Checking and Cleaning the Print Head If your printed image shows a color shift or horizontal lines, you should check the print head to see if any nozzles are clogged or deflected. The printer will then run an automatic cleaning cycle if necessary. 1 Make sure paper is loaded in the printer. 2 Press the Menu button. 3 Press to highlight TEST PRINT, then press Menu. NOZZLE CHECK is selected. 4 Press Menu, then press to start printing the nozzle check pattern. To clean the print head manually, press the Menu button and hold it for 3 seconds. The cleaning cycle takes about one minute and does not use any paper. Note: You can also run nozzle checks and head cleaning cycles from your computer using the Epson Printer Utility (Macintosh) or the Utility tab in your printer driver (Windows). See your Printer Guide for more information. 4 Press the Menu button again. The STANDARD setting is highlighted. This is the correct thickness setting for most Epson papers. 5 Press the button to save the setting. 6 Press , then press to highlight ALIGNMENT. 7 Press the Menu button to highlight AUTO, then press Menu again. UNI-D (uni-directional) is highlighted. This is the type of alignment to start with. ALIGNMENT AUTO UNI-D BI-D 2 COLOR BI-D ALL Aligning the Print Head If your prints look grainy or blurry, or you see misregistration or "ghosting," you need to align the print head. 1 Make sure the printer is turned on. Then load Epson Doubleweight Matte, Enhanced Matte, or Premium Luster Photo Paper. 2 Press the Menu button. 3 Press the button until HEAD ALIGNMENT is highlighted. Then press Menu. PAPER THICKNESS is highlighted. HEAD ALIGNMENT PAPER THICKNESS ALIGNMENT 8 Press the button to start the alignment process. Each head alignment takes about 7 minutes. Caution: Make sure you don't open the front cover or turn off the printer during the alignment process. 9 When the uni-directional alignment is finished, press the button until BI-D 2-COLOR is highlighted. Then press again to start the bi-directional black alignment. 10 When the bi-directional black alignment is finished, press the button until BI-D ALL is highlighted. Then press . 11 When the final alignment is finished, press the Pause button. 4