Paper input guide for a transfer zone in a xerographic printing apparatus

A printing apparatus comprising:

• a charge receptor
• means defining a transfer zone associated with the charge receptor;
• and
• a guide member associated with the transfer zone, the guide member defining a plurality of ribs thereon, the ribs being suitable for supporting a print sheet moving in a process direction relative to the transfer zone, the ribs having a height of about 1-2 mm relative to the main surface of the guide member.

A printing apparatus comprising:

• a charge receptor;
• means defining a transfer zone associated with the charge receptor;
• and
• a guide member associated with the transfer zone, the guide member defining a plurality of ribs thereon, the ribs being suitable for supporting a print sheet moving in a process direction relative to the transfer zone, at least a subset of the ribs being oriented diagonally relative to the process direction.

A printing apparatus comprising:

• a charge receptor;
• means defining a transfer zone associated with the charge receptor;
• a guide member associated with the transfer zone, the guide member defining a plurality of ribs thereon, the ribs being suitable for supporting a print sheet moving in a process direction relative to the transfer zone;
• and
• biasing means for biasing the guide member, wherein the biasing means biases the guide member in a predetermined manner in response to a predetermined humidity condition.

A printing apparatus comprising:

• a charge receptor;
• means defining a transfer zone associated with the charge receptor;
• a guide member associated with the transfer zone, the guide member defining a plurality of ribs thereon, the ribs being suitable for supporting a print sheet moving in a process direction relative to the transfer zone;
• and
• biasing means for biasing the guide member, wherein the biasing means biases the guide member to a first polarity when a print sheet is passing thereover, and biases the guide member to a second polarity at another time.

A printing apparatus comprising:

• a charge receptor;
• means defining a transfer zone associated with the charge receptor;
• a guide member associated with the transfer zone, the guide member defining a plurality of ribs thereon, the ribs being suitable for supporting a print sheet moving in a process direction relative to the transfer zone;
• and
• biasing means for biasing the guide member, wherein the biasing means biases the guide member in a predetermined manner in response to a predetermined humidity condition.

A printing apparatus comprising:

• a charge receptor;
• means defining a transfer zone associated with the charge receptor;
• a guide member associated with the transfer zone, the guide member defining a plurality of ribs thereon, the ribs being suitable for supporting a print sheet moving in a process direction relative to the transfer zone;
• and
• biasing means for biasing the guide member, wherein the biasing means biases the guide member to a first bias when a print sheet is passing thereover, and biases the guide member to a second bias at another time.