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Intermec EasyCoder 501 – Service Manual Ed. 7
Chapter 8 Print Unit
There are two types of printhead available for the EasyCoder 501
S, 501 E, and 501 SA printers, one with a density of 8 dots/mm
(203.2 dpi) and one with 11.81 dots/mm (300 dpi). There is also
a special 8 dots/mm printhead for EasyCoder 501 LinerLess. The
type of printhead can be recognized by the label on the outer side
of the printhead, see Chapter 1.1.
Specifi cations: 8 dots/mm (203.2 dpi) 11.81 dots/mm (300 dpi)
Print width 104.0 mm (4.1 inches) 108.3 mm (4.26 inches)
Number of dots 832 1280
Dot size 0.125 mm (4.9 mils) 0.085 mm (3.3 mils)
The printer auto-detects the printhead density as well as the head
resistance at startup. The printhead can also be checked using the
Intermec Fingerprint function HEAD.
The printhead is fi tted to an adapter plate by means of a single
screw. A locking mechanism operated by a lever holds the adapter
plate to the headlift bracket. A guide screw can be fi tted either to
the left or right at the top of the adapter plate in order to select the
printhead’s lateral position in relation to the headlift bracket, see
later in this chapter.
There are two cables from the printhead to the CPU board:
• The outermost cable (protected by a black plastic tube) is used
for the power to the printhead and is connected to P-301 on the
CPU board.
• The innermost cable (20-p blue fl at cable) is used for data to the
printhead and is connected to P-700 on the CPU board.
8.7 Printhead, cont.
Label
Art:
Date:
1-010
010-9
2
97-0
6
8 dots/mm printhead for 501 LL
11.81 dots/mm printhead for 501 S, E, & SA
8 dots/mm printhead for 501 S, E, & SA
Lower lip
No lower lip
Plastic cover
Metal cover
