guia de diagnostico u295

7/31/2019 Guia de Diagnostico u295

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TMTM--U295U295Troubleshoot ing Guide.Troubleshoot ing Guide.

Please use the following flowcharts to help you to diagnose what is wrong

with your printer.

When the flowcharts call for a product to be returned to PC-PoS, please

contact PC-PoS before the unit is sent back.

Some of the following flowcharts discuss changing the Dip switch settings

so that they are appropriate for the intended application. If you are not fully

conversant with doing this then either contact your local dealer or contact

the PC-PoS technical support department nearest to you.

These flowcharts are intended as a basic fault-finding guide only and we do

not encourage any repair to the internal mechanisms or electronic

components by non- PC-PoS technical staff as this will render the warrantyinvalid. If you have any questions regarding this matter then please contact

PC-PoS.


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The Basic Guide.Start

Is the POWER

LED lit?

Power On

Go topart 1.

No

Is the

PAPER OUTLED lit?

Yes

No

Yes

Is the

RELEASE

LED flashing?

Go topart 3.

Yes

No

Execute the self-test

(See part 4for details on how to do this).

Is the self-test

normal?

Is the printout

normal?

Terminal sends rint data

Go topart 6.

END

No

No

Yes

Yes

Is slip paper

inserted?Insert sli a er.

OK?

END

Yes

No

No

Yes

Go topart 5.

Go to part 2.

Is paper loaded by

pressingFORWARD OR

REVERSE switch?

Yes

Go topart 4.

No


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Part 1.

Pow er LED does not l ight .

Start

Is the power supplycable connected

properly?

Connect power supply cable properly. Tomake certain this is done, remove the

connector completely and re-insert.

OK?

Is the Power supply

OK? I.E has it been

tested on anotherdevice?

Connect supply to another known

working printer and test it.

PSU

OK?

Check Fuse in mains plug and check for damage tocable or connector. Re-test the Power Supply on

another unit before proceeding. If you had to

change the fuse and start the main flow-chart again.

PSU

OK?

Return unit to PC-PoS.

Beyond Local Repair.

END

No

Yes

Yes

Yes

Yes

Yes

No

No

No

No


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Part 2.

Pape r Out LED is l i t .

No

Yes

Start

Turn the printer off for 30seconds and then turn back

on again.

OK?

END

Yes

No

Is the cover

closed correctly?

Close the cover correctly. The best way to dothis is to open the cover and then closing itagain fully making certain to feed the paper

properly.

OK?

END

Yes

No



END


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Part 3.

RELEASE LED is Li t or Flash ing.

Start

Are the connectors to

the printer hooked up

correctly?

Hook up connectors correctly.The easiest way to do this is to remove

the connectors, while the power is off,

and re-connect them.

OK?

END

Yes

No

Are the DIP switches

correctly set for the

application?

Turn the printer power off and change the DIP switch

settings to the proper setting for the type ofapplication being used. (See the end of this document

for the appropriate settings)

OK?

END

Yes

No

Has the printer

recovered fromthe error?

Reset the printer by switching it

off for at least 30 seconds.

Wait for the print head

temperature to drop if excessive.

END

No

No

Yes

Yes

Go topart 4.


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Part 4.

Paper is not Loaded by press ing

FORWARD or REVERSE Sw it c h.

No

Yes

Start

Is paper jammedin the paper inlet

path or anywhere

in the printer?

Remove the paper jam. The best way to do

this is to take out ALL paper from the printer

and then clean the inside to make certain that

all debris is removed. Re-load paper whenfinished and re-test.

OK?

END

Yes

No



END


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Part 5.

Sel f -t est is not no rm al .

The Self-Test.

To initiate the self-test for the printer, follow these instructions:

1. Turn off the printer using the power button.2. Turn the printer on while keeping the RELEASE button depressed. TheRELEASE LED and the PAPER OUT should now be lit. Insert a piece of paper

into the slip printing area then printing will commence and the information

printed will give the status of the printer.

3. When printing is complete, the paper will be ejected and the PAPER OUT LED

will be lit. To continue the self-test, insert more paper in the printer or switch off

and back on again to resume normal printing.


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Par t 5 c on t .

Sel f -t est is not no rm al .

Start

Does the printer

operate at all?

Is the cover

closed properly?Close cover properly.

OK?

END

Yes

No



Printing is carried out, butprint quality is deficient or

paper feeding is not normal.

Is the Ink Ribboninstalled correctly?

Does it have enough

ink?

OK?

END

Yes

Install print ribbon correctly or

change print ribbon for a new one.



No

No

No

Yes

Yes

Yes

No


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Part 6A (Ser ia l V ers io n)

Dat a f rom host is not pr in ted norm al ly .

Start

Set SW1 of DIP switch bank 1 to OFF.

Send data from host to printer.

Is ? printed?

Are RS-232 interface

parameters set toidentical values at host

printer?

Make settings identical

OK?

END

Yes

No

Does interface

cable match

specifications?Replace with a proper

cable

OK?

END

YesNo

Is the interface

cable damaged or

broken?Replace interface

cable.

OK?

END

YesNo



Yes

Yes

Yes

Yes

No

No

No

No


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Part 6B (Paral le l Vers i on)

Dat a f rom host is not pr in ted norm al ly .

Start

Does interface

cable match

specifications?Replace with a proper

cable

OK?

END

YesNo

Is the interface

cable damaged or

broken?Replace interface

cable.

OK?

END

YesNo



Yes

Yes

No

No


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DIP Sw i t c h Set t ings fo r

t he TM-U295

For t he Ser ia l in ter face model .

TM-U295 DIP switch 1

SW-1 Function ON OFF

1 Data reception error Ignored Prints ?

2 Receive buffer capacity 35 bytes 512 bytes

3 Handshaking XON/ XOFF DTR/ DSR

4 Word Length 7 bits 8 bits5 Parity check Enabled Disabled

6 Parity selection Even Odd7

8

Transmission speed selection.See the table below.

9 I/F Pin 6 reset signal Enabled Disabled

10 I/F Pin 25 reset signal Enabled Disabled

Transmission Speed (BPS) SW 1-7 SW 1-81200 ON ON2400 OFF ON

4800 ON OFF

9600 OFF OFF

Note: Do not change the DIP switch settings while the

printer power is on. You may damage the printer.


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DIP Sw i t c h Set t ings fo r

t he TM-295

For t he Paral le l in ter fac e m odel .

TM-U295P DIP switch 1

SW-1 Function ON OFF

1 Automatic Line Feed Enabled Disabled

2 Receive buffer capacity 35 bytes 512 bytes

3

45

67

89

Not Defined

10(Reserved) DO NOT CHANGESETTING

FIXED TO ON -

Note: Do not change the DIP switch settings while the

printer power is on. You may damage the printer.

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