I managed to get some ink stains off of my Beverly MM using an eraser, but that could be because the bag was new.
Here's a couple websites that might be helpful:
http://www.ehow.com/how_2598_remove-ink-stains.html
http://home.ivillage.com/cleanandorganize/cleaning/0,,nkps,00.html
Also, if it is the Alcantara Suede Lining:
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ALCANTARA[/FONT]
[FONT=Arial, Helvetica, sans-serif]Cleaning and care[/FONT]
[FONT=Arial, Helvetica, sans-serif]Alcantara is a soft and durable faux suede, easily cleaned using just mild soap and water. To keep your furniture looking new simply wipe over with a damp cloth periodically then give it a soft brushing. Removable covers can be machine washed at 30C. Allow to dry naturally, replace covers and brush over. Under no circumstances should solvents or dry cleaning be used.[/FONT]
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Spillage removal for Alcantara and faux suede[/FONT]
[FONT=Arial, Helvetica, sans-serif]Egg, beer, milk, cream, chocolate, ice cream: wipe with mild detergent solution then rinse.[/FONT]
[FONT=Arial, Helvetica, sans-serif]Blood: mild detergent solution, repeated several times if necessary.[/FONT]
[FONT=Arial, Helvetica, sans-serif]Coffee, tea, wine, grass, ketchup, alcohol: wash off with mild detergent solution, if discoloured treat with citric acid solution then rinse well.[/FONT]
[FONT=Arial, Helvetica, sans-serif]Chewing gum: liberally apply with ethyl alcohol and remove.[/FONT]
[FONT=Arial, Helvetica, sans-serif]Fatty foods, ink pens, shoe polish: dab with a clean cloth soaked in ethyl alcohol then treat with mild detergent solution and rinse off.[/FONT]
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Material Things cannot be held responsible for damage resulting from cleaning. If in doubt test on an inconspicuous area first. Work from the outside of the stain inwards to prevent spreading and allow the area to dry naturally. Treat spills and satins immediately for best results. The exception is mud which should be left to dry then brushed or vacuumed off. [/FONT][FONT=Arial, Helvetica, sans-serif]
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I hope you get the stain out. HTH