Datamax I-class Maintenance Manual page 51

Displayed Message
SCANNER FAULT
STROBE TIMING
FAULT
Troubleshooting
Fault Messages (continued)
Description
Press FEED to clear the fault. Examine the failed bar
code and then if it is free of voids, with sufficient quiet
zones, try the following:
1)
2)
3)
4)
5)
6)
A bar code could
not successfully be
decoded.
7)
Note: This is

normal if a bar code 8)
is not decodable.
9)
10) If using same data multiple-up bar codes, ensure
11) Possible missing jumpers on the Backplane PCB,
12) Possible defective scan head; replace it.
13) Possible defective Backplane PCB; replace it (see
14) Possible defective Main Logic PCB; replace it (see
A printhead clocking Attempt to clear the fault by cycling the power OFF
problem has been and ON; if the fault does not clear, replace the Main
detected. Logic PCB (see Section 4.11).
Solution
Ensure that the cabling from the scanner to the
Centerplate to the Backplane PCB is firmly
connected.
Cycle the power OFF and ON.
Check for debris on the scanner window and
clean it if necessary.
Ensure that the bar code is supported and is
within specification for the scanner.
Ensure that AUTO Mode is not being used if the
bar code is bitmapped or if addendums are used.
The settings may be too restrictive. Decrease
PRINT SPEED, increase the bar code height, or
adjust the MIN READABLE HEIGHT or the
REDUNDANCY LEVEL.
Align the scanner.
Ambient light maybe interfering with the optics.
Reduce bright light sources; alternately, increase
the lighting in low light conditions.
Ensure a level label and verify the scanner's
alignment. The Tear Bar or Rewind Plate should
be installed; or, if using an external rewinder,
attached to that device.
that sufficient white space exists between the
rows.
E1-E2 & E5-E6 should be installed.
Section 4.12).
Section 4.11).
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