HP 2700n Service Manual - Page 233

Smearing Table 6-22 Causes for smearing Cause Solution Poor contacts exist to each cartridge and printer grounding Clean the grounding contacts on each cartridge and the printer. If the problem remains after cleaning, check the contacts for damage. Replace any deformed or damaged parts. Make sure that all contacts are connected correctly. The movement of the fuser front paper sensor lever is not smooth Reseat the lever to make the movement smooth. Foreign substances or dirt on the fuser inlet guide Clean the fuser inlet guide. Misplaced image Table 6-23 Causes for a misplaced image Cause Solution The oblique rollers are worn (if problem only occurs on the Replace the oblique rollers. back side of duplex printing only) DC controller PCB is defective Replace the DC controller PCB. Calibrate the printer after replacing the DC controller. Reversed color Table 6-24 Causes for reversed color Cause Solution The FFC that connects the DC controller to the formatter is Reseat the FFC to the DC controller PCB J1001. not correctly connected DC controller PCB is defective Replace the DC controller PCB. Snail tracks Table 6-25 Causes for snail tracks Cause Solution This occurs in high-temperature, high-humidity environments Replace the fuser. on the second side of duplexing jobs when the fuser pressure roller is bent. ENWW Image defects 215