| 摘要 |
PURPOSE:To adjust the density of an electrostatic printing type plotter which has high reliability at low cost by counting pixel numbers of printing. CONSTITUTION:The density is adjusted by a mechanism 14 which counts the pixels of the printing and a control mechanism 8 which opens the valve 10 of a concentrated liquid tank 9. The printing pixel counting mechanism 14 sends a signal indicating that a constant number of pixels are printed to the control mechanism 8, which when receiving the signal, opens the valve 10 of the concentrated liquid tank 9 for a certain time. Consequently, the density of the inexpensive electrostatic recording type plotter which has high reliability can be adjusted. |
