Ricoh MP 7503SP Field Service Manual page 73

Guidance for Those Familiar with Predecessor Products
PFU motors
The paper feed motor of the D225 is no longer an external motor. It is encased in the PFU unit, just like
the D223/D224. Also, the STM (stepper motor) has been replaced with a DCM (DC motor).
Paper jam handling
New LEDs are provided on the inner covers on the paper path. An LED will light when a jam occurs at its
location. This makes it much easier to locate and remove jammed sheets. You must pay attention to these
LED harnesses when removing a cover. The LED must be disconnected before a cover can be completely
removed.
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