Electrophotographic copying machine with paper feeding and discharge trays

An electrophotographic copying machine, comprising:

• a body;
• a paper feeding tray attached to one side surface of said body,
• a paper discharging tray attached to the other side surface of said body;
• a paper feeding roller provided in said body for picking up a copying paper put on said paper feeding tray;
• and
• guide means provided in said body between said paper feeding tray and said paper feeding roller for guiding the copying paper from said paper feeding tray to said paper feeding roller, said guide means including a box-shaped guide holder;
• a pinion rotatably mounted in said guide holder;
• first and second racks arranged in parallel with each other so as to sandwich said pinion, each of said first and second racks being detachably attached to said guide holder, and said first rack having a first projection formed to be projected and retracted in a direction intersecting a movement direction of said first rack;
• a plurality of first notches formed at a portion of said guide holder in contact with said first rack and engaged with said first projection at different positions;
• and a plurality of second notches formed at a portion of said guide holder in contact with said second rack and engaged with said first projection at different positions.

An electrophotographic copying machine, comprising:

• a body;
• a paper feeding tray attached to one side surface of said body,
• a paper discharging tray attached to the other side surface of said body;
• a paper feeding roller provided in said body for picking-up a copying paper put on said paper feeding tray;
• and
• guide means provided in said body between said paper feeding tray and said paper feeding roller for guiding the copying paper from said paper feeding tray to said paper feeding roller, said guide means including a rockable guide plate, a tip end of said guide plate being positioned below the paper feeding roller;
• a first spring for pressure-contacting said tip end of said guide plate against a peripheral surface of said paper feeding roller;
• and means for detaching said tip end of said guide plate from said peripheral surface of said paper feeding roller against said first spring;
• a rockable arm provided in the vicinity of said peripheral surface of said paper feeding roller;
• a friction pad provided at one end of said arm;
• a second spring for acting on said arm and for pressure-contacting said friction pad against said peripheral surface of said paper feeding roller;
• and
• means for separating said friction pad from said peripheral surface of said paper feeding roller against said second spring when said detaching means is operated.

An electrophotographic copying machine, comprising:

• a body;
• a paper feeding tray attached to one side surface of said body,
• a paper discharging tray attached to the other side surface of said body;
• an original table on said body;
• first indicator means on one end edge of said original table;
• and
• and second indicator means comprising to the width of said paper feeding tray, each of said first and second indicator means having a symbol at a corresponding point therein to determine the position of the copying paper in the paper feeding tray relative to the original table.