Citizen CLP-621 Technical Manual

2-2. Operation of Control Partstrol Parts
CLP-621 & CLP-631 2-30 CLP-621 & CLP-631 2-30
(4-3) Head driver (4-3) Head driver
The head driver is incorporated in the Head SA. The head driver is incorporated in the Head SA.
When printing, pin 116 (HDVON) of IC11 (Custom IC) goes to "High" level, and DTR1 and
TR1 turn ON. Thus +24V is supplied to the thermal head (Head SA).
When printing, pin 116 (HDVON) of IC11 (Custom IC) goes to "High" level, and DTR1 and
TR1 turn ON. Thus +24V is supplied to the thermal head (Head SA).
The print data is sent from the Custom IC (IC11) to the head driver to select the thermal
elements to be heated. The data is sent via HD1 to 3, HDSTB, HDCLK and HDLAT lines
(pins 110, 111, 113, 108, 115 and 107 of IC11).
The print data is sent from the Custom IC (IC11) to the head driver to select the thermal
elements to be heated. The data is sent via HD1 to 3, HDSTB, HDCLK and HDLAT lines
(pins 110, 111, 113, 108, 115 and 107 of IC11).
According to the print data, the thermal head heats the thermal elements to print dots on
thermal transfer paper. The width of heating pulse will be changed according to the head
temperature to keep the printing density constant.
According to the print data, the thermal head heats the thermal elements to print dots on
thermal transfer paper. The width of heating pulse will be changed according to the head
temperature to keep the printing density constant.
CN4
Thermal
Head
5,6,8,11,12
20,22
1-4,23-26
HDSTB1-3
HDCLK
HDDAT1-3
HDLAT
+3.3V
VHEAD
10,14,17
19
P174-
176
P177
P178
P179
IC11
Custom IC
HDLTH
107
HDSTB
108
HDCLK
115
HDATA1-3
110,
111,
113
HDVON
HCVON
HDVON
116
HCVON
117
+24V
R76
R77
TR1
DTR1
+5V
R81
R82
DTR2
R84
VHEAD
DTC143EUA
DTC143EUA
P170
D2
2SJ553S
TR2
2SJ647
D1
+3.3V
IC1
CPU
D3
+3.3V
R83
R78
R80
R79
P166
P171
P173
P164
Head supply voltage ON/OFF
Thermal element abnormality check ON
Head power supply monitor
Thermal element abnormality check
[Main PCB]
When driving: +24V
When checking: +5V
HD1-3
HDSTB
HDCLK
HDLAT
7
5
6
2-3
13
15
14
16-18
16
18
7,9,15
174
PRT_MODE
IC1
CPU
P74
Fixed to L.
+3.3V
R159
HDTHM1
P167
P162
P172
P168
VHEADMON
HEADRES
P169
P163
ANI4
9
ANI5
10
A1-3
B1-3
A4
B4
A5 B5
A6 B6
IC21A
27

Citizen CLP-621 Specifications

General

USB port	No
RS-232 interface	Yes
Optional connectivity	Ethernet
USB 1.1 ports quantity	1
USB 2.0 ports quantity	0
Connectivity technology	Wired
Flash memory	2 MB
Certification	UL, C-UL, FCC class A, CCC, CE Marking
Internal memory	8 MB
Number of fonts	2
Built-in barcodes	PDF417, UPC-A, UPC-E
Built-in processor	32 Bit RISC
Mean cycles between failures (MCBF)	1000
Power consumption	2400 mA
Power requirements	100 - 240V, 50 / 60Hz
Compatible operating systems	Windows 2000, XP, Vista
Core diameter	25.4 mm
Ribbon length	360 m
Media thickness	0.0635 - 0.254 mm
Maximum label length	812 m
Maximum roll diameter	127 mm
Supported paper width	19.5 - 118 mm

Weight and Dimensions

Depth	114 mm
Width	91 mm
Height	104 mm