Epson TM-U950 Technical Manual

5-84 Disassembly, Assembly, and Adjustments Rev. A
If you want to cancel
paper waiting,
press SLIP FEED button.
Perform the following according to the recognition result:
❏
When "?" is printed sporadically
MICR mechanism may be dirty. Clean(*1) the magnetic head and head holding roller.
Go on to the next test if "?" are still printed after the cleaning.
❏
When "?" is printed continuously
MICR mechanism may be dirty or be damaged. Clean(*1) the magnetic head and head
holding roller. Go on to the next test if "?" are still printed after the cleaning.
(*1) To clean the head holding roller, insert the roller cleaning sheet by EPSON into the
printer. To clean the magnetic head, insert the magnetic head cleaning sheet into the
printer. For the cleaning sheets, refer to the Check sheet specification later in this
section.
If you don’t proceed to the next test, press
SLIP FEED
button to skip the test, or turn the
printer power off to quit the test.
The tests numbered 3 and 4 are to check the MICR mechanism functions. For the tests, use the
specified sheets. See page 5-86.
3. Noise test
Noise level of the MICR mechanism is checked. Some sheets may have magnetic ingredients,
so please use the specified sheet.
1. Set the card-M by EPSON to the printer.
2. The printer starts noise check, and prints the results as follows:
(4) Checking result
MAX=*.** [V]: Noise wave maximum value.
MIN=*.** [V]: Noise wave minimum value.
P-P=*.** [V]: Difference between the maximum and minumum value.
Standard: under 0.40V
mean=*.*** [V]: Noise wave average. Standard: 2.5 +/- 0.1 V
σ
=*.*** [V]: Noise wave standard declination. Standard: under 0.045 V
(5) Wave form check. (1st)
Please set check with
magnetic ink calibration.
If you want to cancel
calibration check waiting,
CONFIDENTIAL

Epson TM-U950 Specifications

General

Print speed	18.6 ips
Character size	1.3 x 3.1 mm
Print technology	Dot matrix
Paper dimensions	210 x 297 mm
Dimensions (WxDxH)	251 x 298 x 194.5 mm
Electromagnetic compatibility	VCCI, FCC, CE
Safety	UL, CSA
Country of origin	China
Mean time between failures (MTBF)	180000 h
Serial interface	Yes
Standard interfaces	RS-232C
Weight (imperial)	12.3 lbs
Pallet width	1200 mm
Pallet height	1000 mm
Pallet length (UK)	2250 mm
Quantity per pallet	24 pc(s)
Quantity per pallet (UK)	36 pc(s)
Quantity per pallet layer	4 pc(s)
Harmonized System (HS) code	84433210
Quantity per pallet layer (UK)	6 pc(s)
Package depth	425 mm
Package width	360 mm
Package height	330 mm
Package weight	7196 g
Quantity per pack	1 pc(s)

Weight and Dimensions

Depth	298 mm
Width	186 mm
Height	195 mm