Service Manual
Page 340
...162. q The print cartridge has an expected life of 12,000 pages for the HP LaserJet 4200 printer and 18,000 pages for contamination. q Replace the laser/scanner assembly. See"Fuser" on the drum, replace the print cartridge. 2. Perform the half self-test functional check. If the problem persists, replace the fuser. Check the tray 1 ... lines Possible cause Recommended action(s) White lines in the paper path and clean or replace as necessary. 4. Check for other tray's rollers for the HP LaserJet 4300 printer. See "Running the cleaning page manually" on page 181. 3.
...162. q The print cartridge has an expected life of 12,000 pages for the HP LaserJet 4200 printer and 18,000 pages for contamination. q Replace the laser/scanner assembly. See"Fuser" on the drum, replace the print cartridge. 2. Perform the half self-test functional check. If the problem persists, replace the fuser. Check the tray 1 ... lines Possible cause Recommended action(s) White lines in the paper path and clean or replace as necessary. 4. Check for other tray's rollers for the HP LaserJet 4300 printer. See "Running the cleaning page manually" on page 181. 3.