Printing machine with a printing plate changer

A printing machine comprises a printing plate roller with a geometric roller rotation axis (45) and a clamping device for holding a printing plate, and further comprises a printing plate changer with a printing plate guide device (14), wherein the printing plate guide device is supported in such a way that the printing plate can be adjusted to a feed position (46) for feeding the printing plate to the clampping device. The printing machine further comprises a plurality of lateral stops (47) and a plurality of frontal stops (9) for determining the feed position (46). 种印刷机包括具有几何滚筒旋转轴线(45)和用于保持印版的夹紧装置的印版滚筒，并且还包括具有印版引导装置(14)的印版更换器，其中，印版引导装置以能够被调整成供给位置(46)的方式被支承，供给位置(46)用于将印版供给至夹紧装置所述。所述印刷机还包括用于确定供给位置(46)的多个横向止挡部(47)和多个正面止挡部(9)。