Printing apparatus

A printing apparatus comprising:

• a conveying unit configured to convey a sheet;
• a first printing unit configured to perform printing on a first side of the sheet conveyed by the conveying unit;
• a first fixing unit configured to include a fixing section to perform fixing processing to the first side of the sheet that is conveyed by the conveying unit and is subjected to printing by the printing unit;
• a first bypass path that composes a conveying path of the conveying unit and does not pass on the fixing section;
• a second printing unit configured to perform printing on a second side of the sheet conveyed by the conveying unit;
• a second fixing unit configured to include a fixing section to perform fixing processing to the second side of the sheet that is conveyed by the conveying unit and is subjected to printing by the printing unit;
• a second bypass path that composes a conveying path of the conveying unit and does not pass on the fixing section;
• and
• a switching unit configured to switch the conveying path of the sheet between a conveying path passing on the fixing section of the first fixing unit and the first bypass path or to switch the conveying path of the sheet between a conveying path passing on the fixing section of the second fixing unit and the second bypass path.

A printing apparatus comprising:

• a conveying unit configured to convey a sheet;
• a printing unit configured to perform printing on the sheet conveyed by the conveying unit;
• a fixing unit configured to include a fixing section to perform fixing processing to the sheet that is conveyed by the conveying unit and is subjected to printing by the printing unit;
• a bypass path that composes a conveying path of the conveying unit and does not pass on the fixing section;
• a first inverting unit configured to invert two sides of the sheet, the inverting unit being located on an upstream side of the fixing section in the conveying path of the conveying unit;
• a second inverting unit configured to invert two sides of the sheet, the inverting unit being located on a downstream side of the fixing section in the conveying path of the conveying unit;
• and
• a switching unit configured to switch the conveying path of the sheet between a conveying path passing on the fixing section and the bypass path and to switch the conveying path so that a surface of the sheet that is subjected to fixing processing by the fixing unit does not come into contact with the conveying unit.