| 摘要 |
A portable printer comprising a door (12) pivotally coupled to a main body (10) of the portable printer at a back end, a printing medium roller support (36) rotatably mounted on the door of the portable printer, a platen rotatably positioned at a front end of the door, a door locking mechanism having a pair of door locking latches respectively positioned at opposite ends of the platen, a roller movably and rotatably coupled to the door locking mechanism and positioned parallel to the platen, a pair of levers movably coupled to the door locking mechanism for pressing the roller against the platen when the door is closed to the main body, a support frame (78) positioned within the main body, a print head pivotally coupled to the support frame, a pair of coil springs coupled between the print head and the support frame such that the print head is essentially floating against the support frame, a body locking mechanism having a pair of body locking latches for latching with respective door locking latches, a gear system coupled to the platen for rotating the platen, a door lock preventing the door locking mechanism from being pressed to release the door, a printing medium sensor and a status indicating lamp for sensing and reporting the status of the printing medium roll, wherein the medium roller support is mounted on the door for easy accesses of the printing medium roll and the print head is adjustably positioned against the platen. <IMAGE> |
