Troubleshooting Guide
Page 1
... have any repair to diagnose what is sent back. PC-PoS technical staff as a basic fault-finding guide only and we do not encourage any questions regarding this will render the warranty invalid. If you are intended as this matter then please contact PC-PoS. Please use the following flowcharts discuss changing the Dip switch settings so...
... have any repair to diagnose what is sent back. PC-PoS technical staff as a basic fault-finding guide only and we do not encourage any questions regarding this will render the warranty invalid. If you are intended as this matter then please contact PC-PoS. Please use the following flowcharts discuss changing the Dip switch settings so...
Troubleshooting Guide
Page 2
Yes Load roll paper. Is the printout normal? Is the paper roll not loaded or near roll end? Yes Terminal sends print data Go to part 2. No Go to part 6. No OK? Yes END Is the ERROR LED flashing? Yes Go to part 4. (See also at the end of this ). Is the self-test No normal? Yes END No Go to part 5. Is the POWER LED...
Yes Load roll paper. Is the printout normal? Is the paper roll not loaded or near roll end? Yes Terminal sends print data Go to part 2. No Go to part 6. No OK? Yes END Is the ERROR LED flashing? Yes Go to part 4. (See also at the end of this ). Is the self-test No normal? Yes END No Go to part 5. Is the POWER LED...
Troubleshooting Guide
Page 3
... the power supply cable connected No properly? If you had to another known working printer and test it been tested on another device? END No PSU Yes OK? Yes PSU OK? Yes No Connect supply to change the fuse and start the main flow-chart again. Beyond Local Repair. Part 1. Re-test the Power Supply on another unit before proceeding. Power LED does not light.
... the power supply cable connected No properly? If you had to another known working printer and test it been tested on another device? END No PSU Yes OK? Yes PSU OK? Yes No Connect supply to change the fuse and start the main flow-chart again. Beyond Local Repair. Part 1. Re-test the Power Supply on another unit before proceeding. Power LED does not light.
Troubleshooting Guide
Page 4
Start Turn the printer off for 30 seconds and then turn back on again. Yes No END Is the cover No closed correctly? Yes Close the cover correctly. Return unit to do this is lit. Yes END Beyond Local Repair. Part 2. Paper Out LED is to open the cover and then closing it again fully making certain to feed the paper properly. END No OK? OK? The best way to PC-PoS.
Start Turn the printer off for 30 seconds and then turn back on again. Yes No END Is the cover No closed correctly? Yes Close the cover correctly. Return unit to do this is lit. Yes END Beyond Local Repair. Part 2. Paper Out LED is to open the cover and then closing it again fully making certain to feed the paper properly. END No OK? OK? The best way to PC-PoS.
Troubleshooting Guide
Page 5
SLIP LED lit or flashing. Yes No END Is the cover No closed correctly? The best way to do this is to PC-PoS. Yes END END No OK? Beyond Local Repair. OK? Start Turn the printer off for 30 seconds and then turn back on again. Yes Close the cover correctly. Part 3. Return unit to open the cover and then closing it again fully.
SLIP LED lit or flashing. Yes No END Is the cover No closed correctly? The best way to do this is to PC-PoS. Yes END END No OK? Beyond Local Repair. OK? Start Turn the printer off for 30 seconds and then turn back on again. Yes Close the cover correctly. Part 3. Return unit to open the cover and then closing it again fully.
Troubleshooting Guide
Page 6
... proper setting for the appropriate settings) No OK? END Hook up correctly? Yes END Turn the printer power off , and re-connect them. Beyond Local Repair. Is the paper type selected correctly by switching it off for the print head temperature to remove the connectors, while the power is Lit or Flashing. The easiest way to do this document for the type of paper being used. (See...
... proper setting for the appropriate settings) No OK? END Hook up correctly? Yes END Turn the printer power off , and re-connect them. Beyond Local Repair. Is the paper type selected correctly by switching it off for the print head temperature to remove the connectors, while the power is Lit or Flashing. The easiest way to do this document for the type of paper being used. (See...
Troubleshooting Guide
Page 7
Yes END No Remove the paper jam. Part 4. Paper is removed. The best way to do this is to take out ALL paper rolls from the printer and then clean the inside to PC-PoS. END No OK? Start Is paper jammed in the paper inlet Yes path or anywhere in the printer? Beyond Local Repair. Re-load paper when finished and re-test. Return unit to make certain that all debris is not Loading Correctly.
Yes END No Remove the paper jam. Part 4. Paper is removed. The best way to do this is to take out ALL paper rolls from the printer and then clean the inside to PC-PoS. END No OK? Start Is paper jammed in the paper inlet Yes path or anywhere in the printer? Beyond Local Repair. Re-load paper when finished and re-test. Return unit to make certain that all debris is not Loading Correctly.
Troubleshooting Guide
Page 8
... printed will be flashing. Insert a piece of paper into the printer before starting. 2. Make certain there is not normal. Press the FEED button to resume normal printing. Turn the printer on again to continue the self-test or switch the printer off the printer using the power button. 3. Turn the printer on again to indicate the standby condition. 5. To initiate the self-test for the SLIP part of the printer or switch off the printer using the power button. 2. Turn...
... printed will be flashing. Insert a piece of paper into the printer before starting. 2. Make certain there is not normal. Press the FEED button to resume normal printing. Turn the printer on again to continue the self-test or switch the printer off the printer using the power button. 3. Turn the printer on again to indicate the standby condition. 5. To initiate the self-test for the SLIP part of the printer or switch off the printer using the power button. 2. Turn...
Troubleshooting Guide
Page 9
Beyond Local Repair. Is the cover No closed properly? Yes END Part 6 cont. Start Does the printer No operate at all? No Does it have enough ink? Yes Return unit to PC-PoS. Close cover properly. Is the Ink Ribbon installed correctly? No OK? Yes Return unit to PC-PoS. Yes END Install print ribbon correctly or change print ribbon for a new one. Yes Printing is carried out, but print quality is deficient or paper feeding is not normal. Beyond Local Repair. No OK? Self-test is not normal.
Beyond Local Repair. Is the cover No closed properly? Yes END Part 6 cont. Start Does the printer No operate at all? No Does it have enough ink? Yes Return unit to PC-PoS. Close cover properly. Is the Ink Ribbon installed correctly? No OK? Yes Return unit to PC-PoS. Yes END Install print ribbon correctly or change print ribbon for a new one. Yes Printing is carried out, but print quality is deficient or paper feeding is not normal. Beyond Local Repair. No OK? Self-test is not normal.
Troubleshooting Guide
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Are RS-232 interface parameters set to OFF. Start Set SW1 of DIP switch bank 1 to identical values at host printer? Yes No Does interface cable match No specifications? Yes END Yes Is the interface cable damaged or Yes broken? No Make settings identical Yes Replace with a proper cable No OK? Is "?" printed? Beyond Local Repair. No OK? Yes END No OK? Send data from host is not printed normally. Part 7A (Serial Version) Data from host to PC-PoS. Yes END Replace interface cable. No Return unit to printer.
Are RS-232 interface parameters set to OFF. Start Set SW1 of DIP switch bank 1 to identical values at host printer? Yes No Does interface cable match No specifications? Yes END Yes Is the interface cable damaged or Yes broken? No Make settings identical Yes Replace with a proper cable No OK? Is "?" printed? Beyond Local Repair. No OK? Yes END No OK? Send data from host is not printed normally. Part 7A (Serial Version) Data from host to PC-PoS. Yes END Replace interface cable. No Return unit to printer.
Troubleshooting Guide
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Yes No Does interface cable match No specifications? Yes END Replace interface cable. No OK? No Return unit to identical values at host printer? Yes END printed? Beyond Local Repair. No Make settings identical Yes Replace with a proper cable No OK? Yes END No OK? Start Send data from host is not printed normally. Are RS-232 interface parameters set to PC-PoS. Is "?" Yes Is the interface cable damaged or Yes broken? Part 7B (Parallel Version) Data from host to printer.
Yes No Does interface cable match No specifications? Yes END Replace interface cable. No OK? No Return unit to identical values at host printer? Yes END printed? Beyond Local Repair. No Make settings identical Yes Replace with a proper cable No OK? Yes END No OK? Start Send data from host is not printed normally. Are RS-232 interface parameters set to PC-PoS. Is "?" Yes Is the interface cable damaged or Yes broken? Part 7B (Parallel Version) Data from host to printer.
Troubleshooting Guide
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...Operation (Busy Condition) Connection of Customer Display Selects number of characters per line TM-U375 Compatibility ON Receive Buffer Full Connected See Table Below. You may damage the printer. TM-U675 DIP switch 1 SW-1 1 2 3 4 5 6 7 8 Function Data reception error Receive buffer capacity Handshaking Word Length Parity check Parity selection Transmission speed selection. I/F Pin 6 reset signal I/F Pin 25 reset signal Enabled Enabled Disabled Disabled TM-U675 Characters Per Line SW 2-4 SW 2-3 Font Type/ Character Characters Total Dots OFF On ON Dot Spacing 5 x 9 / 2 Half dots...
...Operation (Busy Condition) Connection of Customer Display Selects number of characters per line TM-U375 Compatibility ON Receive Buffer Full Connected See Table Below. You may damage the printer. TM-U675 DIP switch 1 SW-1 1 2 3 4 5 6 7 8 Function Data reception error Receive buffer capacity Handshaking Word Length Parity check Parity selection Transmission speed selection. I/F Pin 6 reset signal I/F Pin 25 reset signal Enabled Enabled Disabled Disabled TM-U675 Characters Per Line SW 2-4 SW 2-3 Font Type/ Character Characters Total Dots OFF On ON Dot Spacing 5 x 9 / 2 Half dots...
Troubleshooting Guide
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... Half Dots Note: Do not change the DIP switch settings while the printer power is on. You may damage the printer. TM-U675P DIP switch 1 SW-1 1 2 3 4 5 6 7 8 Function Auto line feed Receive buffer capacity Reserved ON Enabled 40 bytes Fixed to OFF OFF Disabled 4K bytes TM-U675P DIP switch 2 SW-2 Function 1 Handshaking (Busy Condition) ON Receive Buffer Full 2 Internal Use (DO NOT CHANGE) 3 Characters per line 4 TM-U375 Compatibility 5 6 Internal Use 7 Cannot Be Used (Only for the TM-U675-011 For the Parallel interface model.
... Half Dots Note: Do not change the DIP switch settings while the printer power is on. You may damage the printer. TM-U675P DIP switch 1 SW-1 1 2 3 4 5 6 7 8 Function Auto line feed Receive buffer capacity Reserved ON Enabled 40 bytes Fixed to OFF OFF Disabled 4K bytes TM-U675P DIP switch 2 SW-2 Function 1 Handshaking (Busy Condition) ON Receive Buffer Full 2 Internal Use (DO NOT CHANGE) 3 Characters per line 4 TM-U375 Compatibility 5 6 Internal Use 7 Cannot Be Used (Only for the TM-U675-011 For the Parallel interface model.
Troubleshooting Guide
Page 14
... position could not be detected properly due to paper jam in the paper path. Error Description Print head temperature is too high or Roll paper is not set correctly in carriage or other problem. 4) Cut Sheet Ejection Error. Carriage motor has gone out of step due to execute an invalid address. 9) Over Current Error. Slip or validation paper is not ejected properly after being advanced 5) Paper Roll Cover Open Paper Roll cover...
... position could not be detected properly due to paper jam in the paper path. Error Description Print head temperature is too high or Roll paper is not set correctly in carriage or other problem. 4) Cut Sheet Ejection Error. Carriage motor has gone out of step due to execute an invalid address. 9) Over Current Error. Slip or validation paper is not ejected properly after being advanced 5) Paper Roll Cover Open Paper Roll cover...
