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HP Color LaserJet 4500 and 4550 Series Printers - Toner Dusting, Toner Leaks, and Preventive Cleaning
Document number: bpl08083
Toner dusting occurs on the HP Color LaserJet 4500 and 4550 series printer. Under normal conditions, toner dusting will not cause print defects. The print cartridges will leak small amounts of toner during normal use as they rotate in the carousel. However, piles of toner indicate a leaking cartridge. HP recommends that users clean toner dust from the toner flap area and check the toner collection tray on a regular basis. This will prevent toner dusting or leaking from causing serious print quality and maintenance issues.
Checking and cleaning the toner collection tray
To check and clean the toner collection tray, perform the following steps:
Figure 1: Looking at the waste toner collection tray after removing the fuser
1 - Black tab on the collection tray
A toner leak occurs when the printer dumps a large amount of toner from the cartridge in a short amount of time. This issue is different than toner dusting and is usually due to a broken seal in the print cartridge. A distinct pile of toner in the toner collection tray indicates a toner leak.
HP recommends that customers check the toner collection tray on a regular basis. If users notice toner leaking early, it will not turn into a serious problem. If customer ignores the toner dumping and allow it to accumulate over time, the toner will eventually appear in the printing path and cause overt print quality issues. Moreover, cleaning and regular maintenance will lead to early detection of damaged cartridges.
Cleaning the printer and accessories
To maintain high print quality and performance, thoroughly clean the printer and the paper handling accessories:
Clean the printer with the cleaning cloth that is provided with the printer or with a lint-free cloth. Observe the warning and caution below.
WARNING: Before beginning these steps, turn off the printer and unplug all power cords to avoid shock hazard. Use caution when cleaning around the fusing assembly area - it may be hot.
CAUTION: To avoid permanent damage to the print cartridge, do not use ammonia-based cleaners on or around the printer. Do not touch the transfer roller. Skin oils on the roller can reduce print quality. If toner gets on clothing, wipe it off with a dry cloth and wash in cold water. Hot water sets toner into fabric.
CAUTION: Do not use a regular vacuum cleaner to vacuum any spilled toner. Toner particles used in this product may be too fine for effective vacuuming and could result in damage to conventional vacuums. When cleaning spilled toner, use only a vacuum cleaner that is equipped with a micro-fine particle filter.
If the issue is unresolved, click here to contact HP support (http://thenew.hp.com/country/us/eng/contact_us.html) and provide the following information: