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Spec drill · Max paper size

imageCLASS MF656Cdw vs WorkForce Pro WF-7840

A side-by-side readout for max paper size.

Canon · imageCLASS MF656Cdw
Letter
Epson · WorkForce Pro WF-7840
Tabloid
▲ Lead
VerdictWorkForce Pro WF-7840 wins on max paper size.
Context

Understanding max paper size

Max paper size is a categorical spec — values are distinct options rather than points on a continuous scale. Higher-tier options are not always strictly better; they often trade one capability for another (more protection at the cost of weight, more performance at the cost of efficiency, more features at the cost of complexity). Read the option names as shorthand for a bundle of tradeoffs rather than a simple ranking. When two products report different values, the right pick depends on how you'll actually use the device: a higher rating you'll never benefit from is wasted, while a lower rating that matches your environment can save money without compromise. Where the category has a clear "best" tier — IP68 for water, OLED for displays — the Mars Score reflects that, but a one-step difference between adjacent tiers is rarely decisive on its own.

This matchupimageCLASS MF656Cdw reports Letter while WorkForce Pro WF-7840 reports Tabloid. These categorical values aren't simply "more or less" — pick the option whose tradeoffs match how you'll actually use the product.

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Other specs on this comparison

See the full Printers category for all products ranked by Mars Score.