Ic 1
Figure 2-12. Control Circuit Block Diagram Figure 2-12. Control Circuit Block Diagram When the power supply is turned on, the VL goes up to 9 VDC immediately, but reset IC output IC A2, Pin 6 is delayed for approximately 80- 1 ma before going up to 9 VDC. The system IC receives this Lowlevel signal from the reset IC and resets itself.
Timing Belt 1
Figure 3-10. Removing the MOTOR ASSY.,CR Figure 3-10. Removing the MOTOR ASSY.,CR 1. Remove the printer mechanism see Section 3.2.4 . 2. Remove the GROUNDING SPRING,PLATEN that secures the platen shaft. 3. Remove the GEAR,25 from the FRAME,RIGHT. 4. Disengage the teeth of the 2 BUSHING 11s and rotate them. 5. Rotate the PLATEN and remove it. 1. Remove the printer mechanism see Section 3.2.4 . 2. Remove the PLATEN see Section 3.2.4.3 . 3. Release the SHAFT FRICTION of the PAPER GUIDE,UPPER from...
Control Circuit
The control circuit consists of the C130 MAIN board assembly. This section describes the major components and explains how the board works. 2.3.1 Control Circuit Operation Overview The printer's system IC contains a CPU iPD78C10A-type that runs at 14.74 MHz, a gate array E05A79-type and a main RAM 8KB SRAM . It oversees control of all the components in the printer. The printer uses the E05A90 gate array to control address decoding, parallel communications, PF motor drive signals, etc. Table 2-5...
Interface Specifications
LX-300 has parallel interface and serial interface, one of which can be selected in default setting mode. Auto selection is also available. 1.3.1 Parallel Interface Specifications The LX-300 is equipped with an 8-bit parallel interface, standard. Data format Synchronization Handshaking Signal level Adaptable connector Data transmission timing By BUSY and ACKNLG signals TTL-compatible level -pm 57-30360 Amphenol or equivalent See Figure 1-7.