Epson TM-U220 Series Service Manual

Rev. B Repair Guide 2-7
TM-U220 Type A Service Manual
Confidential
All Function Test
When you select the all function test in the printer sequence selection screen and click Next, the
all function test screen appears.
Select the test elements and click the Start button to start the all function test.
Using this test, you can check the following functions for the printer.
❏ Communication function:
You can confirm that communication with the printer is enabled/disabled.
❏ Setting function:
Reads and prints on the status sheet the status settings for EPSON NV memory, memory
switches, communication conditions, and customized value.
❏
Receipt print function:
Prints patterns to confirm print operations and print quality.
❏
Roll paper cut function:
The Type A model autocutter cuts roll paper after each printing on the roll.
❏
Drawer open/close function:
Runs a test of drawer open/close operation while printing the receipt pattern. Be sure to
connect the drawer kick to the printer before executing the all function test.
❏ Sensor function:
Confirms the operation of sensors controlling and detecting printer operations. The checking
method for the sensor indicated with the arrow is displayed on the screen. Operate the
printer following the instructions on the screen.
2. Click to start the All Function Test.
1. Select the test elements.

Epson TM-U220 Series Specifications

General

Print Method	9-pin, serial impact dot matrix
Autocutter	Partial cut
Weight	Approx. 2.5 kg
Paper Thickness	0.06 to 0.085 mm
Operating Temperature	5 to 45 °C
Interface	RS-232, Bi-directional parallel, USB, Ethernet
Number of Columns	42 columns
Data Buffer	4 KB
Character Set	95 Alphanumeric, 128 x 12 Graphic
Power Supply	AC adapter
Operating Humidity	10% to 80% RH (non-condensing)
Print Speed	4.7 lines per second (at 40 columns, 16 dpi)
Paper Width	76 mm / 69.5 mm / 57.5 mm ± 0.5 mm
Copy Capability	Original + 2 copies