1.收纸链排牙垫的速度和压印滚筒牙垫的速度相等。即在相对静止的状态下进行交接。 1. the speed of the paper chain and the tooth pad is equal to the speed of the impression pad. That is, in a relatively static state of handover. 2.收纸牙排牙垫的位置和压印滚筒牙垫的位置相互对应。不能超前或滞后，造成交接不稳。 2., the location of the paper holder and the location of the impression roller pad correspond to each other. Can not advance or lag, resulting in unstable handover. 3.收纸链排的牙垫应在一个平面上。即在交接时应能保证纸张定位状态的前提条件，同时表面应具有较大的摩擦系数。 3. the paper chain lining should be on a flat surface. That is to say, when transferring, the precondition of paper positioning should be guaranteed, and the surface should have larger friction coefficient. 4.收纸链排的牙片开闭牙的动作应一致。即防止局部的摩擦传动被破坏，造成印迹滑移或撕口。 4. delivery chain row of film teeth on-off action should be consistent. That is, to prevent partial friction transmission from being damaged, causing imprinting slippage or tearing. 5.收纸牙排的咬力应能满足印刷的要求。收纸链排由于直接参与了印刷过程，其咬力必须足够大，才能把纸张从橡皮滚筒上取下来，否则就会粘在橡皮布的表面。但是如果牙垫的咬力过大，长时间冲击会造成牙垫位置变化，从而影响交接的稳定性。 5. the bite force of the paper receiving line shall be able to meet the printing requirements. The chain of paper is directly involved in the printing process, and the bite force must be large enough to remove the paper from the rubber drum, otherwise it will stick to the surface of the blanket. However, if the occlusal force of the dental pad is too large, the long time impact will result in the change of the position of the tooth pad, thus affecting the stability of the transfer.