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FTP-628MCL101 SPECIFICATION
A1NA02265-0101/6
Dept. to control the original document Date
Date
Rev.
Design
Design
Inspection
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ect.
Changes made
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FUJITSU TAKAMISAWA COMPONENT LIMITED
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6
2-2 Casing design
□Platen retainer
(1) Refer to Attached Paper, Section 2-8 "The figures of the platen retainer and the paper
insertion area" for attachment of the platen part. If it is used with any different size from
the recommended ones, it may cause uneven printing, unfavorable removal of the platen, and
troubles such as damages due to the lack of the strength; therefore, be sure to conform with
the recommendation. The recommended dimension of the retainer is in a range where the
angle is 11°
±
0.5° and the size of the X-direction is 50-55mm.
(2) Cover the platen gear part so that it is not exposed. The platen has some play against the
retainer part; therefore, the gap between the platen gear and the cover should have
sufficiently play.
(3) Materials of the platen retainer should have high strength and high impact-resistance as the
ones for the platen retainer (equivalent to PC or PC+ABS).
(4) Avoid removing the platen from the platen retainer as much as possible after having attached
it to the platen retainer.
□Positions of the cover and the fulcrum
(1) Refer to the figure in Section 2-8 for the fulcrum position of the cover. Make sure to set so
that the position is surely above more than 10°
from the centerline of the platen (the
recommended angle value is 11°
±
0.5°). In addition, the recommendation value of the
X-direction dimension should be within a range of 50-55mm. If the printer is used with
different values from the recommended angle and X-direction dimension, contact us in
advance.
(2) The fulcrum of the cover should be parallel to the platen of this printer as much as possible
(make sure to set the position of the fulcrum so that the standard line of this printer S is the
reference when setting the dimension).
(3) When having set the platen in the printer, pay attention if any load is applied to the platen
part due to effects of the twisted cover or deviation of the dimensions. If any load is
applied to the platen part, it will give unfavorable effects to the printing quality, the paper
feeding property, and the lifetime. Confirm that the bearing does not float form the
bearing part of the printer cabinet when the platen part is closed.
(4) Materials of the cover should have high strength, high durability, and high torsional strength
as the ones for the cover (equivalent to PC or PC+ABS).
(5) To improve the detachability of the platen, attach guides for preventing the strike slip on the
both sides of the cover as well as the shape of the cover should be torsional-resistant. When
removing the platen, carefully check that any platen gear is lacked or deformed because the
platen gear contacts to the printer. Damages to the platen gear will give unfavorable
effects to the printing quality and the paper feeding property.
(6) The paper feeding motor (a pulse motor) of the printer and the thermal head may have the
hot temperature, depending on the running time. When designing the casing, consider the
heat radiation property. Be sure to design the casing so that no one is allowed to directly
touch with bear hands such as adopting a cover structure, etc.
□Lock mechanism of the casing
The platen retainer part of this printer provides an easy retaining (locking) mechanism
(the printer as a single unit can perform the printing action), which comprises of the
pressure of the head and the shape of the bearing part of the sideboard. However, if the
following items are considered, the lock mechanism is recommended to mount on the
casing side.
(1) When using with a portable terminal, the casing may be opened and the rolled paper inside
may jump out when it is dropped or moved (particularly, while it is being carried).
(2) Depending on the attaching orientation of the printer, loads of the cover or the rolled paper
may work to directions to which the platen is removed. Due to that, the platen gear may
get off the track or the platen may be detached during the printing.
(3) When cutting the paper ejected from the printer with a manual cutter or depending on the
pulling direction of the paper, the platen gear may get off the track or the platen may be
detached (when locking, minimize the play of the platen as much as possible).