Techniques are disclosed for incrementally rendering content in a content framework. Directly detecting the power voltage, when a power anomaly of the power voltage is detected, the electronic device may enter the energy-saving mode immediately for reducing power consumption, and a required DC voltage may be provided directly from the battery. When the receiving end receives a packet of isochronous transfer type with an incorrect header, the receiving end does not send a retry signal to the transmitting end. The methods group individual image frames together into superframes for broadcast, making allowances for frames which are supposed to be decoded in one second but presented or displayed in a subsequent second. In one aspect, the color inkjet-imaging device collectively moves one or more of the staggered printheads along a single actuation axis from a respective spittoon in a particular service station to a print zone without colliding with any portion of an adjacent cleaning unit. The split washer is ramped through the hole until the split washer is entirely on the first side of the wall.