Dascom MIP480 User Guide - Manual (Page 79)

Trouble-Shooting
6-5
Printer Failures
A user cannot generally resolve a problem involving defective printer hardware. On de-
tecting a fatal error, the printer will:
• Stop printing
• Turn the Ready indicator off
• Blink the Paper Out indicator
The following errors cause the printer to turn off the power:
• Print head error
• Space motor error (print head carriage motor)
• Line feed motor error
• +34 V overvoltage error
No error condition is displayed if any of these errors occurs.
Turn the printer power switch on, then rerun the same job to check if the error was tran-
sient. If the error recurs, contact your dealer.
Diagnostic Functions
The printer diagnostic functions are print-test and hex-dump.
• Print-test tells you whether the printer hardware is functioning correctly. It prints the
print-test pattern. If the printer hardware is functional, any problems you are having are
probably caused by incorrect printer settings, incorrect software settings, the interface,
or the computer.
• Hex-dump allows you to determine whether the computer is sending the correct com-
mands to the printer, and whether the printer is executing the commands correctly.
This function is useful to programmers or others who understand how to interpret hex
dumps.
For details on using these functions, all of which are available in the printer Special mode,
see “Using the Diagnostic Functions” in Chapter 4, "Using Special-Up Mode".
Checking Vertical Alignment
In bidirectional printing, characters are printed from left to right tend to misalign with char-
acters printed from right to left as shown below:
The vertical alignment function corrects the vertical character displacement that some-
times occurs with bidirectional printing and results in a poor appearance especially in
printing tables. This function is defined as one of the power-on initiated test functions. If
you notice misaligned printing, start this function to check and correct the vertical print
alignment.
Make sure that continuous forms paper or single sheet paper is loaded in the printer. If
possible, use forms at least 216 mm (8.5 inches) wide. Then proceed as follows:
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ＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨＨHHHHHHHHHHHＨＨＨＨＨ