The Speaker Company TTP 248M TTP-248M Bar Code Printer Service Manual 5.3 Self-test, DRAM Clear

TTP-248M Bar Code Printer

Service Manual

5.3 Self-test

To initiate the self-test mode, depress the MENU button. Press MENU button to scroll the cursor to Printer test. Press EXE button to enter the submenu and press MENU button to “Printer Config”. item. Press EXE button to print printer internal setting. In self-test, a check pattern is used to check the performance of the print head. Following the check pattern, the printer prints internal settings as listed below:

1.Printer model and firmware version

2.Check sum

3.Serial port setting

4.Code page setting

5.Country code setting

6.Print speed setting

7.Print density setting

8.Label size setting

9.Gap (Bline) width and offset setting

10.Backing paper transparence

11.File list

12.Memory available

5.4 DRAM Clear

Switch off printer power. Press the PAUSE and FEED button simultaneously then switching on printer power. Release the button for more than 3 seconds. The printer will clear the memory and reset the printer.

Be sure to calibrate the gap register with blank label before printing.

5.5 Diagnosis Operation Procedure

When the power is turned on without any button pressed, self diagnosis is performed automatically to test the available memory. If any error occurs during this period, the ERR light will flash.

Do the self-test and inspect the test pattern to check if the Print head is available.

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