Service manual

Rev. 1.04
- 16 -
EM 220
Mobile Printer Service Manual
2-7 MSR Usage
1) Press the MSR cover to open.
2) Insert the card as shown in the image and swipe
in the direction of the arrow.
(can be done in both directions)
3) When finished using, press the MSR cover to
close it.
NOTE
If the card does not register, first check to see if it is
properly aligned. When swiping the card, the
recommended swiping speed is 100 ~ 1500 mm/sec.
2-8 Self-Test
Run the self-test when first setting the printer or when encountering a problem, and check the following:
- Control Circuit, Mechanisms, Print Quality, ROM Version, and Memory Switch Settings
If no issue is found with the printer after running the self-test, examine the other devices or peripherals and
software. This function is independent of such other devices and software.
2-8-1 Self-Test Instructions
1) Turn the printer power off and close the printer paper cover.
2) Pressing the paper feed button and power button simultaneously turns the printer on.
3) The printout is produced after releasing the two buttons.
4) To add a printout of the ASCII pattern, press the paper feed button once more.
5) After the ASCII pattern is printed out, the self-test is automatically terminated.