Scanner error 12 on hp laserjet m1005
When the lid or door of an HP Laser Jet printer isn't properly closed, the printer's display will read "Error 12." You can usually correct an "Error 12" by closing the printer's door securely -- a process which may require that you first fix the orientation of a toner cartridge so that the door can close. In some instances, an "Error 12" appears due to some other issue, such as a missing toner cartridge or a defective paper-feeding component.
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