Epson TM-U220 Series Service Manual

3-2 Troubleshooting Rev. B
Confidential
3. Return the cutter blade to the normal position by rotating the autocutter knob in the
direction of the arrow. When the blade is returned to the normal position, the lever moves to
the center of the hole in the autocutter frame.
4. Lift up the roll paper cover.
Note:
❏
Besides a paper jam, a foreign object, such as a push pin, can cause the autocutter to lock up. In
this case, follow the same procedure described above to return the cutter to its normal position.
Before Servicing
Pages iv to v at the beginning of this manual provide precautions you should observe to perform
work safely and supply the necessary information to service this product safely. Always read
that information before starting your work.
Diagnosing Failures
Use one of the following methods to identify the area where a failure occurred.
❏
See the tables in the section "Symptoms and Solutions" for diagnosing failures by the
symptom of the problem.
❏
See "Test Points on the Main Circuit Board Unit" for failures on the main circuit board unit.
Autocutter unit
Lever
Hole
Knob

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