Stylus Pro 4880 Field Repair Guide 1/17/08
Horizontal Banding Printer Component, Software Item, LCD Display, Printer Button Page 119.
decrease the feed step all the way. If the banding is affected, it is feed related. If the banding is not changed, or a new
banding is added, it is not feed related.
Use another Computer with the Epson Driver and Epson Media to eliminate the users equipment.
Verify that the proper Spindle is being used (High Tension or Low Tension Spindle)
Verify that the media does not bind coming off the roll.
Print Head Related
If the horizontal banding is Print Head related, it is usually due to missing, deflected or sympathetic Nozzles. the ser-
vice level Nozzle Check, is the best way to inspect the Print Head’s accuracy. A slightly deflected Nozzle can cause
horizontal banding, depending on the Nozzle’s location in the Nozzle array.
Missing or deflected Nozzles may be caused by problems with the Cleaning Station. Before attempting to clear
Nozzle issues, the Cap, Wiper Blade, Wiper Blade Cleaner, and the Print Head Nozzle Plate should be cleaned.
Additionally the Borderless Pads and Flushing Box should be checked to verify that they are not out of position or
dirty. If a build up of contaminants makes contact with the Nozzle Plate, it will cause reoccurring Nozzle drop out.
A Nozzle with a slight inaccuracy can cause horizontal banding. The M/W ADJ: feature located in the User Paper
Config menu, is designed to change the Nozzle use pattern. Changing the Nozzle use pattern can minimize the fre-
quency that a problem Nozzle is used, impacting the horizontal banding. Try all 3 settings (Standard, 1, and 2) and
pick the best.
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