Intermec EasyCoder PF2i, PF4i, and PF4i Compact Industrial—Service Manual 95
Chapter 7—Print Mechanism
Replacing the Printhead
The printhead is a consumable part subject to wear from both the direct
thermal media or the thermal transfer ribbon and from the rapid heating
and cooling process during printing. Thus, it will require periodic replace-
ment depending on print volume, type of media or ribbon, amount of
energy to the printhead, print speed, ambient temperature, and several
other factors.
Be careful not to use printheads or data cables designed for EasyCoder
F2, F4, or F4 Compact Industrial printers, or there will be a short-cir-
cuit that will prevent the printer from starting up or even cause a fuse
to blow.
To replace a defective or worn printhead, proceed as follows:
• Switch off the power.
• Open the right-hand door.
• Turn the printhead lift lever clockwise to raise the printhead.
• Remove any media and ribbon from the print mechanism.
• Carefully pull the printhead bracket away from the magnet in the
pressure arm.
• Disconnect the printhead bracket from the print mechanism and pull
out the printhead while twisting it outwards as far as the cables allow.
• If an EasyCoder PF4i is fi tted with an optional securing spring, the
spring must be removed during the printhead replacement operation.
This procedure is generally not described in the manuals, but can be
found in the Installation Instructions that come with the spring.
The illustration shows the printhead of an EasyCoder PF4i.
For illustrated step-by-step instructions, please refer to the Maintenance chapter in the
User’s Guide.
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