HP M551DN manual Repeating defects, Print the Supplies Status

Repeating defects

If defects repeat at regular intervals on the page, use a ruler and the table below to identify the cause of the defect. Place the top of the ruler at the first defect. The marking that is beside the next occurrence of the defect indicates which component needs to be replaced.

Distance between defects	Product components that cause the defect
27 mm	Print cartridge (primary charging roller)
32 mm	Print cartridge (developer roller)
44 mm	Print engine (primary transfer roller)
49 mm	Print cartridge (replenishing/supply roller)
50 mm	Print engine (secondary transfer roller)
76 mm	Print cartridge (OPC)
77 mm	Fuser (fuser film)
78 mm	Fuser (pressure roller)

Print the Supplies Status page

The Print Supplies Status page indicates the estimated life remaining in print cartridges. It also lists the part number for the correct genuine HP print cartridge for your product so you can order a replacement print cartridge, as well as other useful information.

1.At the control panel, press the Home button.

2.Open the following menus:

●Administration

●Reports

●Configuration/Status Pages

3.Use the down arrow button to highlight the Supplies Status Page item, and then press the OK button to select it.

4.Use the up arrow button to highlight the Print item, and then press the OK button.

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