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Press the Ink or Ink Management key on the control panel.
Press the up or down arrow key to choose Test Print and press OK.
Press the up or down arrow key to choose Print Quality and press OK.
Press Color (Colour) start. The machine begins printing the Print Quality Check Sheet.
Closely examine the Print Quality Check Sheet. Each of the four colors is represented by a slanted square pattern made up of individual blocks. The colors should appear in the following order from left to right: Black - Yellow - Cyan - Magenta.
Compare the print quality of the Check Sheet you just printed with the three examples listed below:
(A) One or more complete blocks of colors are missing:
(B) Most of the short diagonal lines are missing from one or more color blocks:
(C)Some parts of the short diagonal lines are missing from one or more color blocks:
The display will then ask you if the print quality is OK for black. Press the down arrow key or 2 or "-" to choose No for black with the problem.
The display will then ask you if the print quality is OK for Color. Press the down arrow key or 2 or "-" to choose No for color with the problem.
The display will then show Start Cleaning? Yes No. Press the up arrow key or 1 or "+" to choose Yes and the machine will start cleaning the color ink cartridges.
When the machine completes cleaning the print head, press Color(Colour) Start. Another Print Quality Check Sheet will print.
Repeat the cleaning and the quality check process following the Step 4-7.
Most printers use the colour cartridge to make black, instead of the black cartridge. When you go to print a black and white document, on the box where you choose the number of pages to print, click properties, and locate the colour settings. There will be two options: Colour/Black and White-with a sub option of high quality or black only. Select Black only. The printer will now only use the black ink.
nope...... the problem as you rightly poit out is the cartridges, most refills are poor quality and dont last, but the real ones are expensive but very rarely cause issues. If one colour is dodgy the entire colour process fails, print a square of each colour to determine which colour cart is the issue and complain to seller, 99.9% of print quality issues with these HP's is due to non gen toner....not much you can do, expensive is colour printer fullstop.