Citizen CLP-631 - Setting the Ribbon - Tension and Balance

2-2. Operation of Control Parts
2-2. Operation of Control Parts
CLP-621 & CLP-631 2-16
2-2-1. Configuration of Printer
The following shows major configuration blocks.
+5V, +24V
Head Up Sensor
Transparent Sensor
Reflective Sensor
Filter & Power Supply
[Power Supply PCB]
AC Inlet &
Power Switch
[Centro PCB]
Serial I/F
(USB)
Serial I/F
(RS-232C)
(Option)
Host
(PC)
PF Motor
Thermal Print Head
(Head Temp. Sensor)
Operation Panel
[Ope-pane PCB]
Cutter
Peeler
[Main PCB]
Parallel I/F
(IEEE1284)
Parallel I/F
Ethernet I/F PCB
Wireless LAN I/F PCB
(Option)
Ribbon Motor F/R
[Ribbon Main PCB]
Tension Sensor F/R
Major functions of individual components are described below:
(1) Filter & power supply section
Consists of a fuse, a filter circuit to eliminate external electric noise, and a switching type
regulator to transform an AC input to +5V DC and +24V DC outputs required to drive the
printer.
(2) Main PCB
Controls the entire operations of the printer. It consists of CPU, ROM, RAM, Custom IC, driver
circuits, etc.
(3) Operation panel
A panel used to indicate the operating status of the printer and to set specifications. It consists
of 4 keys and 4 LEDs.