I Edo 1
Figure 2-23. EEPROM Circuit Block Diagram The Timer IC mounted on the C209 main board counts how long the printer is not used. The lithium-battery BAT1 is mounted on the board and performs power supply to the Timer IC when the Figure 2-24.Timer Circuit Block Diagram Figure 2-24.Timer Circuit Block Diagram The followings explain about operation of this circuit. When the printer is on, power is supplied to the Timer IC by applying 5V through the D4. This power is also used to oscillate the outer...
K 1
Figure 2-21. 42V Line Reset Circuit This printer has 3 photo diode sensors ASF sensor, PE sensor and HP sensor , 2 mechanical switch sensors black color ink cartridge sensor and one thermistor sensor. The following explains each sensor's function and principles of detection. ASF Sensor ASF sensor is a photo-interrupter type sensor and is installed on the left edge of the ASF and detects the home position of the ASF. Home position means waiting mode and ASF is controlled to return to this home...
Info Vtm
Figure 2-14. Pump Mechanism Power Transmission Process The process of conveying the motive power to the paper eject roller by rotating the pinion of PF motor is shown in figure 2-12. This motive power is conveyed to the Gear C through Gear B. In the figure above, although the lever in order to drive Gear C, carriage lock, head cleaner mechanism is shown separately, it is constructed as one unit. Since the engagement of these two parts depends on the tension of the compression spring, if the...