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Diagnostics 7156 Owner’s Guide

October 199558

Level 2 Diagnostics

Level 2 diagnostics run during normal printer operation. When the following

conditions occur, the printer automatically turns off the appropriate motor,

disables printing to prevent damage, and turns on the red LED (flashes the red

LED if the receipt printhead is too hot or the voltages are out of range):

• Receipt paper out

• Receipt cover open

• Front cover (cassette door) open

• Receipt knife unable to home

• Slip carriage motor jam

• Receipt printhead too hot or voltages out of range (red LED flashes)

See “Solving Problems” earlier in this book for more information about other

conditions that may occur and how to correct them.

Level 3 Diagnostics

Level 3 diagnostics keeps track of the following tallies and prints them on the

receipt during the receipt test. See “Sample Print Test” later in this chapter.

• Thermal print lines printed

• Number of knife cuts

• Number of hours printer is on.

Print Test

Test the receipt station using the simple tests described in this section. To further

test the receipt station or to test the slip station, run the level 1 diagnostic tests

described in “Level 1 Diagnostics” earlier in this chapter.

The tests described here print various settings which can be used to check the

printer's configuration. The settings are listed in “Level 1 Diagnostics.” The tests

also print all variations of the character sets with a partial cut between each

variation. See the sample at the end of this chapter. The sample does not show the

character sets. The tests end with a partial cut, then begin again. Several feet of

paper can be used to print one pass of the test.

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