How can I stop my printer from printing a test page after every turnon?
Solution 1:
I believe the printer wants to be calibrated. When a new cartridge is installed it prints the calibration test page to check that it is aligned properly. With many HP printers you need to then scan the test page, so the printer can set itself up correctly.
Unfortunately, as your colour cartridge is empty, the alignment will always be faulty, so I suspect there is no fix for this.