Printing Troubles; No Printout At All - Intermec EasyCoder 501 Service Manual

Chapter 26 Troubleshooting

26.3 Printing Troubles

208
The best way to start is to get an overall check of the printing,
which is easily done by ordering a series of test labels to be printed
in the Test Mode (see Chapter 25) or in the Setup Mode (see the
Installation & Operation manual or Appendix 1).
In case the printhead is suspected to be defect, it could be checked
by the following Intermec Fingerprint instructions (see Intermec
Fingerprint v6.14, Reference Manual):
• FUNCTEST$ ("HEAD")
• HEAD
• SYSVAR (21|22)

No printout at all

• Are both cables between printhead and CPU board fi tted cor-
rectly and not broken or otherwise damaged? The fl at cable
from the inner connector on the printhead should run to P-700
and the thicker cable from the printhead's outer connector to
P-301.
• Is the printhead clean? Residue from label adhesive or burnt
transfer ribbon on the printhead prevents it from functioning
correctly. Clean as described in the Installation & Operation
manual.
• In case of direct thermal printing, verify that the media is
intended for direct thermal printing (not thermal transfer!) and
of approved quality.
• In case of thermal transfer printing, check that the ribbon is of
approved quality and fi tted so it can move freely. The "ink"-
coated side must be turned towards the media. Also check that
the receiving face material is suited for the type of transfer
ribbon in use.
• Check that the printhead voltage, P24, is +24V ±1V when mea-
sured between pins 1-5 and 6-10 of connector P-301 or test-
point P24 (see Chapter 17.7).
• Check that the printhead is completely lowered and pressing
against the media with a suffi cient force, see Chapter 24.3.
• Check that the headlift sensor is in order, see "Printhead lift
sensor out of order" in Chapter 26.2.
Intermec EasyCoder 501 – Service Manual Ed. 7