Service manual

CHAPTER 3. HANDLING THE PRINTER
1 Special Handling Considerations
(1) When transporting the printer
•
When transporting the printer, the head up lever should be raised
in the
: Head up position so that the head does not contact the
platen rollers.
Failure to do so may result in poor the printer performance.
• When the printer is carried, it should not be held at the connectors,
the lead wires, paper take-up frame, etc.
• When carrying the printer, never allow large impacts to occur, such
as dropping, collision, etc.
• When carrying the printer, hold the frame with both hands, as
shown in the figure below.
• When transporting the printer, pack it using anti-static packaging.
Do not touch the thermal head and the surface of the PWB. When
handling the printer, properly ground yourself.
Head up lever position
: Close position
The head is in contact with the platen roller
The printer operates and feeds the paper.
The illustration shows the state when the PT-cover is removed
for explanation purposes only.
Fig.
Close position
:Head-up position
The head is not in contact with the platen roller.
To be used when the printer is out of service for a long time
or when it is to be transported.
The illustration shows the state when the PT-cover is removed
for explanation purposes only.
: Cleaning position
To be used when the head and platen roller are to be
cleaned.
Do not leave the head-up lever in this position; Failure to do
so might result in a deformed H-spring, thus leading to poor
print or paper feed quality.
The illustration shows the state when the PT-cover is removed
for explanation purposes only.
Fig.
Cleaning position
Fig. Carrying the printer unit
Head
Head Up Lever
H-Spring
Platen roller
(In contact)
H-Spring
Head
Head Up Lever
Platen roller
Fig. Head-up position
H-Spring
Head
Head Up Lever
Platen roller