Checking the HP 305A Toner Cartridges in HP LaserJet Pro 300 and HP LaserJet Pro 400

HP LaserJet Pro 300 and HP LaserJet Pro 400 is both a series of laser printers that uses HP 305A toner cartridges that consists of part numbers# CE410A, CE411A, CE412A and CE413A. If you’re using one of the printers under the series mentioned and one of these problems is occurring such as the printing is turning too light or seems to fade in areas, printed pages have small unprinted areas that the printed pages have streaks or bands, then it is recommended that you should check each printer cartridges installed in your machine to replace it if it is necessary. Below are the following instructions on how you can check the printer cartridges in your machine as instructed HP Solutions Center:

Print the Supplies Status Page

• Step 1 – At the control panel, press the OK button to open the menus.
  
• Step 2 – Open the following menus: (a) Reports, (b) Supplies Status.

The Supplies Status Page will indicate the estimated life remaining in your HP 305A toners. The page will also lists the part number for the correct HP print cartridge for your product so you can order a replacement print cartridge, as well as other useful information.

Interpret the Print Quality Page

• Step 1 – On the product control panel, open the Reports menu.
• Step 2 – Select the Print Quality Page item to print it.

This Print Quality page contains five bands of color, which are divided into four groups as indicated in the following illustration. By examining each group, you can isolate the problem to a particular print cartridge.

Take note that if dots or streaks appear in only one of the groups, replace the print cartridge that correlates with that group. On the other hand, if dots appear in more than one group, print a cleaning page. If this does not solve the problem, determine if the dots are always the same color. If the dots are all the same color, replace that print cartridge.

Inspect the Print Cartridge for Damage

• Step 1 – Remove the print cartridge from the product, and verify that the sealing tape has been removed.
• Step 2 – Check the memory chip for damage.
• Step 3 – Examine the surface of the green imaging drum on the bottom of the print cartridge. Take note not to touch the green roller (imaging drum) on the bottom of the cartridge. Fingerprints on the imaging drum can cause print-quality problems.
• Step 4 – If you see any scratches, fingerprints, or other damage on the imaging drum, replace the print cartridge.
• Step 5 – If the imaging drum does not appear to be damaged, rock the print cartridge gently several times and reinstall it. Print a few pages to see if the problem has resolved.