I have been trying to prepare a passport photo of my mother-in-law, using the "How to Make Your Own Passport Photos at Home" article prepared by "What Digital Camera".

I have a Canon EOS 550D with a Canon Zoom Lens EF-S 18-200mm. I followed the article's instructions very carefully. I did not use flash, I did take the shot indoors, in good daylight with the lady standing in front of a plain cream wardrobe door.

When viewed onscreen on my HP Pavilion g6 laptop, either in Windows Live Photo Gallery, or in Serif's PhotoPlus X5, the photo looks fine, no sign of the shadows that the article warns are not acceptable for passport photos. However, when printed out using a HP DeskJet 2050, that printer having been fitted with new black and colour cartridges a couple of days ago, with just a few pages having been printed since, the face shows clear indication of the right-hand side of the face, (literally down the middle), being very noticeably darker/shadowed than the left. To repeat, that 'half/half' shadowed/lighter is NOT visible onscreen.

As I could not think of any sensible explanation, I turned to illogical ones and printed on both plain photocopier paper and on proper photgraphic paper. Unsurprisingly, that did not cure it. The problem was still there.

Help appreciated please. I need to get this job done as quickly as possible as there is an urgent need for the passport. I am trying to save my mother-in-law money by not going to a photo-booth!