2-2. Operation of Control Parts
2-19
CLP-621 & CLP-631
(a) CPU
The CPU is a microprocessor with 32-bit architecture. The clock fed to the CPU is 16 MHz.
The CPU internally multiplies this 16 MHz by 8 times and uses 128 MHz clock. The CPU
includes cache memory, RAMs, DMA controller, serial I/F, USB function controller, A/D
converter, etc.
(b) Flash ROM
A flash ROM of 16M bits (2M bytes) that stores the firmware and CG (character generator)
(c) SDRAM (Synchronous dynamic RAM)
A SDRAM of 64M bits (8M bytes) that is used as working area, input buffer and download
buffer
(d) Custom IC
The custom IC incorporates a control circuit for the interface I/O port, motors, print head,
etc.
(e) Head control
This is a circuit to control the thermal head driver incorporated in the thermal head. It also
checks if a thermal element of the thermal head is faulty.
(f) PF motor driver
This is a circuit to drive the PF Motor. The PF Motor is a stepping motor.
(g) Ribbon motor driver
This is a circuit to drive the Ribbon Motor F and Ribbon Motor R. These motors are
stepping motors. The rotational direction of the Ribbon Motor R is changed by the setting
of the Ribbon Winding Selection Switch.
(
h
) Buzzer
The buzzer is driven when an alarm, etc. occurs.
(i) Fan
Cooling fan for the ribbon motor. When the temperature of the Ribbon Motor F (take-up
side motor) exceeds a certain value, this fan starts to work.
Summary of Contents for CLP-621
Page 1: ...Technical Manual CLP 621 CLP 631 Thermal Transfer Barcode Label Printer JM74961 00F 1 00E 0701...
Page 2: ...CLP 621 CLP 631 ii Copyright 2007 by CITIZEN SYSTEMS JAPAN CO LTD...
Page 4: ...CHAPTER 1 SPECIFICATIONS CLP 621 CLP 631...
Page 13: ...CHAPTER 2 OPERATING PRINCIPLES CLP 621 CLP 631...
Page 73: ...CHAPTER 3 DISASSEMBLY AND MAINTENANCE CLP 621 CLP 631...
Page 126: ...CLP 621 CLP 631 CHAPTER 4 TROUBLESHOOTING...
Page 138: ...CLP 621 CLP 631 CHAPTER 5 PARTS LISTS...
Page 166: ...Chapter 5 Parts Lists CLP 621 CLP 631 5 29 DRAWING NO 7 Control Panel Unit Rev 0 4 3 2 1 5...
Page 177: ...Chapter 5 Parts Lists CLP 621 CLP 631 5 40 DRAWING NO 10 Accessories Rev 0 3 2 4 1...
Page 179: ...CHAPTER 6 CIRCUIT DIAGRAMS CLP 621 CLP 631...
Page 208: ...APPENDICES CLP 621 CLP 631...
Page 212: ...B Mounting Diagrams AP 5 CLP 621 CLP 631 Main PCB Solder side...
Page 214: ...B Mounting Diagrams AP 7 CLP 621 CLP 631 B 3 Ribbon Main PCB Parts side Solder side...
Page 217: ......