EPSON WF-4830, WF-4820 Series Service Manual Page 141-160

EPSON WF-4830 Series/WF-4820 Series Revision A Adjustment Adjustment Program 154 Confidential Adjustment (Print adjustment by program) PF/EJ adjustment To correct variations in paper feed accuracy to achieve higher print quality. • Paper type: Photo Matte Paper • Size: A4 • Paper source: Paper Cassette 1st Select "PF/EJ adjustment" from the Adjustment Program menu and execute the item to print the adjustment pattern. Determine the adjustment value from the adjustment pattern based on the judgment criteria and then enter the adjustment value from the PF/EJ adjustment menu. • Adjustment Program P.161 PF Band adjustment Correct the paper feed error that occurs due to mechanical variations or media feed characteristics in band feed mode. • Paper type: Plain Paper • Size: A4 • Paper source: Paper Cassette 1st Select "PF Band adjustment " from the Adjustment Program menu and execute the item to print the adjustment pattern. Determine the adjustment value from the adjustment pattern based on the judgment criteria and then enter the adjustment value from the PF Band adjustment menu. • Adjustment Program P.162 Maintenance Head Cleaning Run this cleaning when dots missing is observed on an adjustment pattern printed by the adjustment program. --- Perform a head cleaning using the adjustment program, and print a nozzle check pattern to see if all the nozzles fire ink properly. • Adjustment Program --- Ink Charge This must be carried out after replacing the Printhead in order to fill ink inside the all nozzles of the new ASP Printhead. --- After installing the Waste Ink Tray Assy, perform an ink charge using the adjustment program, and print a nozzle check pattern to see if all the nozzles fire ink properly. The auto cleaning is also settable. • Adjustment Program --- Maintenance Counter The printer causes a maintenance error when the waste ink pad counter reaches its maximum. Use this to reset the counter after replacing the Waste Ink Pad. If you find the counter is close to the maximum during servicing, carry out the pad replacement and the counter reset to avoid the printer returned from the user due to the maintenance error. --- After replacing the Waste Ink Pad (Waste Ink Tray Assy/Paper Guide Lower Waste Ink Pad Assy), reset the counter to its default. • Adjustment Program --- CR Unlock Unlock the CR Unit. --- Select “CR Unlock” from the Adjustment Program menu and execute it. • Adjustment Program --- Adjustment Item Purpose Adjustment / inspection paper / feed tray Adjustment procedure overview Tools Reference Category Name
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Epson WF-4830 Series Service Manual Page 141-160
Epson WF-4820 Series Service Manual Page 141-160

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