Xerox 7700DX Service Manual - Page 141

Streaks in Direction of Paper Travel There are dark lines running along the page in the direction of paper travel from the leading edge to the trailing edge (B-size print shown). The printer displays no error code. Note A-size prints are processed through the printer with the short edge of the print parallel to the direction of the paper path -- making horizontal print artifacts parallel to the shot edge of the print. Leading Edge B-size prints are processed through the printer with the long edge of the print parallel to the paper path -- making horizontal artifacts parallel to the long axis of the print. 3041-42 1. Check the end of life for each of the consumables by printing the supplies usage page. From the front panel's Printable Pages Menu, select Print Supplies Page. 2. Run the solid fill test pages. From the front panel's Printable Pages Menu, select Service Pages, then select Print Solid Fill Pages. If the missing bands only occur in a single primary color, replace the print cartridge of the affected color. 3. Swap print cartridges and run another test print. Note Under some circumstances, streaking may occur in the margin of SRA3-size paper. This is due to the edges of the paper extending beyond the end of the imaging components. print-quality in the margins of SRA3 paper is not guaranteed. 4. Inspect the Accumulator Belt cleaner, replace the cleaner, if necessary. 5. Run the Remove Print Smears routine. From the front panel's Support Menu, select Improve Print-Quality?, then select Remove Print Smears. 6. Replace the Developer Housing Assembly (RRP 27, on page 7-185). 7. Remove the print cartridge and (with a flashlight) check for debris along the edge of the developer housing. Phaser 7700 Color Laser Printer Service Manual 3-111