Citizen CLP-621 Technical Manual

2-1. Operation of Each Mechanism
2-1-2. Media Feed Mechanism
The major components of the media feed mechanism are:
(a) Motor SA
(b) Platen SA
(c) Gear train
By setting the head block to the down position, media is pushed against the Platen SA by the Head
SA.
As the Motor SA (stepping motor) turns counterclockwise viewing from the right side of the printer,
the Platen SA turns counterclockwise via the gear train (PF1 Gear, PF2 Gear and PF Idle Gear)
and media is fed forward by the friction force produced between the Platen SA and the Head SA.
When the Motor SA turns clockwise, media is fed backwards.
One step of the Motor SA feeds media by 1/16 mm (0.0025").
[Right side view]
SA, Head
1
2
3
4
5
6
Thermal Elements
SA, Motor (a)
Media
SA, Platen (b)
Gear, PF Idle (c)
Motor Gear (c)
Gear, PF2 (c)
Gear, PF1 (c)
Ribbon
CLP-621 & CLP-631 2-6

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