The IRS does acknowledge certain de minimus "fringe benefits" usually in relation to employees. This rather sounds like your use of the software personally may fall into that category. If it is a very small percentage which would be allocated to personal use it could be argued that use is de minimus. On the other hand, if the personal use is material and measurable you could allocate part of the expense paid by your company as non-deductible.
Keep in mind if your company bills out the cost of the software and printers then pays for it yourself, it is your company's deduction. You have picked up the income and will deduct the expense.
