Document set compiler and eject system

Document size detecting device and method of detecting...

Document size detecting device using a plurality of thresholds

Document transport device

Document transporting device and method and image reading device

Double feed sensing device, double feed determining method...

Double sided imaging

Double-faced image formation system

Double-side image forming apparatus and reverse sheet feeding de

Double-sided image forming apparatus

Double-sided image forming device having a turnable guide...

Double-sided printing apparatus

Double-sided printing device for paper handling

Double-surface printing apparatus

Drive switching mechanism and image forming apparatus...

Drive switching mechanism for use in image input apparatus

Driving apparatus for a duplex electrophotographic device

Dual decurler and control mechanism therefor

Dual mode interchangeable modules cut sheet or web printing syst

Dual paper picking mechanism and method for increasing speed...