Epson TM-U950 Technical Manual

Rev. A Disassembly, Assembly, and Adjustments 5-81
TM-U950/U950P Technical Manual
Adjustment H: Detector-Slip Insertion Assembly Threshold Value Adjustment
After replacing detector-slip insertion assembly, main circuit board, or printer mechanism
assembly, be sure to perform the following adjustment to assure correct operation of the printer.
Step Printer Operation User Operation
1
Preparing to enter special setting mode
Set DIP switch 6 of switch bank 2 to off.
2
Enter special setting mode
Prints the following message when user operation 1
to 4 is finished.
Execute the following steps 1 to 4.
1 Open the cover-main assembly. Turn on the
printer while pressing both the RECEIPT FEED
and JOURNAL/SLIP FEED buttons.
2 Release RECEIPT FEED button then JOURNAL/
SLIP FEED button.
3 Press RECEIPT FEED button or JOURNAL/SLIP
FEED button more than six times.
4 Close the cover-main assembly.
3
EEPROM read/write test
Prints the following message after the test
depending on the result.
When no error was found:
This is an unrecoverable error. Reset the printer and
confirm that the initialization is executed correctly.
Replace the main circuit board if this error message
is still printed after executing the adjustment two
times.
4
EEPROM threshold value check
Checks the threshold value in EEPROM, and prints
the following message.
(**shows threshold value in hexadecimal.)
5
Detection value measurement without slip paper
Measures the slip paper insert detection value
without slip paper. The result is printed as follows:
6
Detection value measurement with slip paper
Measures the slip paper insert detection value with
slip paper, and prints the following message.
When message (4) is printed, insert the slip paper in
the slip paper insert detection position, and press
either panel operation button.
*****Special Setting Mode*****
This mode is used for
changing internal setting mode.
Turn off the power, if not necessary.
(1) EEPROM Read/Write Test is completed.
When error was found:
(1) EEPROM Read/Write ERROR!!
EEPROM process STOP.
(2) SLIP IN DETECTOR THRESHOLD VALUE
in the EEPROM : [ ** ]
(** shows threshold value in hexadecimal )
(3) A/D-converted value
Paper OUT : [ ** ]
(** shows detection value in hexadecimal.)
(4) Please SET paper
on SLIP IN detector position.
If ready, Press panel switch.
(** shows detection value in hexadecimal.)
Prints the detection value of the measurement
as follows:
(5) A/D-converted value
Paper IN : [ ** ]
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