Customer Engineer (Ce) Tests - IBM 6400 series Maintenance Manual

Customer Engineer (CE) Tests

A set of printer tests is included in the configuration menu structure for use
as maintenance tools. These are called "Customer Engineer Tests" (CE
Tests) because they are for your use—they are not available to the user
through his documentation. You will use these tests in various
troubleshooting and adjustment procedures.
CE Tests
SERVICE
PRINTER MECHANISM TESTS
Burn In Test
Plot Test
Shuttle Only
Shuttle Slow
Shuttle Fast
Hammer Phasing
End of Forms Adjust
SERVICE
PRINT PARTIAL LINE
ENABLE*
DISABLE
The CE Tests shown in Figure 18 are summarized below:
Printer Mechanism Tests:
Burn In Test Use of this test is not recommended . This test is used by
the manufacturer to burn in the printer prior to shipment, and has no
value as a maintenance tool.
Plot Test Prints all dot positions, creating a solid black band. Exercises
the shuttle and hammer bank at maximum capacity.
138
NOTE: * = Default value
SERVICE
HAMMER PHASE VALUE
1 – 1000
NOTE: Value is numeric
unit only. Test defined on
page 139. Procedure on
page 179.
SERVICE
TOP EXIT TEAR DISTANCE
5.25 to 5.75 inches
in increments of 0.01
inch.
5.50*
Figure 18. CE Tests Menu
SERVICE
END OF FORMS ADJUSTMENT VALUE
4 – 76, 40*
Unit of measurement is
dot rows. Procedure on
page 175.
SERVICE
SHUTTLE SPEED
475
500*
Procedure on page 189.
SERVICE
CLEAR ERROR LOG
Enter key
activates
SERVICE
SET COIL TEMPERATURE
Procedure on page 188.
Troubleshooting