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  Cleaning

13

GeBE E + F GmbH • www.gebe.net • GeBE Doc.No.: SMAN-E-657-V1.4 Thermal Printer GPT-4672/4673

11 Cleaning

10.2.2 Control black marks

 

Control  black  marks  must  be  printed  using  infrared
absorbing  color  in  the  range  of  910-950  nm.  Optical
density should be a minimum of 1.0.

After  the  printer  received  a  form  feed  command,  the
ticket  will  be  positioned  to  the  black  mark  position  +
the length set under Param 19.
This  also  works  in  case  the  control  mark  has  passed
the  black  mark  sensor  during  printing.  Therefore,  the
control  mark  can  be  set  at  random  within  Param  19.
See illustration.
„Final  Position“  (P19  :=  0)  is  defined  by  the  distance
between print position and black mark sensor. 

After  larger  print  efforts,  depending  on  the  paper  quality  and
adverse environmental conditions, it may be necessary to clean
the  print  head,  sensor,  and  the  platen  roll,  especially,  if  some
areas are no longer printed properly.

1. Open printer mechanism by slightly pressing metal lever 
    upwards.
2. Flap downwards paper carrier roller incl. position mark sensor.
    The printer mechanism is now open.
3. Blow forcefully into printer mechanism and onto position mark
    sensor, in order to remove coarse dust.

4. Use a small brush to clean paper carrier roll, sensor and        
    tear-off edge from dirt.
5. Soak Q-tip in isopropanol (IPA) and clean the print bar. 
    Other stubborn debris can also be removed with a Q-tip (IPA).

Never use sharp objects for cleaning. This might cause damage to the
print head.
Do not touch the print head. This might cause damage through
electrostatic charge.

 

On principle the printer has to be kept dust-free.

Summary of Contents for GPT-4672

Page 1: ...49 0 89 8402168 E Mail sales ef gebe net The GeBE logo is a registered trademark of GeBE Elektronik und Feinwerktechnik GmbH All other brands named in this brochure are properties of the respective c...

Page 2: ...e detailed or additional information Contents Chapter Description Page Chapter Description Page_ 1 Safety instructions 2 1 1 Symbols and their meaning 2 1 2 Device information 3 2 Description 4 3 Layo...

Page 3: ...vent burning accidents Do not put heat sensitive objects close to this heat source GeBE E F GmbH www gebe net GeBE Doc No SMAN E 657 V1 4 Thermal Printer GPT 4672 4673 Safe operation of this device is...

Page 4: ...up to 200 mm per second counteracting any impatient pulling on the paper by the user and therefore avoiding costly damage of printer mechanism or cutter GeBE Controller Controller GCT 4692 4693 develo...

Page 5: ...modern technology standards with its multiple options optimally and securely Please read this manual carefully before initial operation and store it in close proximity of the device so it will be avai...

Page 6: ...4 Near Paper End Sensor optional The optical sensor will be screws sideways at the paper roll holder Detectable distance to the paper roll is in a range of 0 5 to 1 0 mm Two different installation pos...

Page 7: ...m diameter 70 mm core diameter 25 mm life 7 years Which thermal paper is suitable The printers are specified for 51 61 mm and 60 82 mm 0 5 mm paper widths up to 200 m paper thickness Other papers may...

Page 8: ...lication The transission of paper between the printer mechanism and the front slot requires a guide that can even be about 1 cm shorter than the printed receipt provided that the length of the receipt...

Page 9: ...AUX3 paper present no paper 3 on AUX4 paper present no paper 4 always 0 identifier 5 always 0 identifier 6 always 1 identifier 7 always 1 identifier Cyrillic Optional character sets The following cha...

Page 10: ...aracter 1Start 8 Data 1 Parity 1 Stop 1 Mark 0 Space Attention the standard configuration has no paritybit Attention the standard configuration has 1 stopbit Signal Level on TTL interface Level on RS...

Page 11: ...he printer mechanism 2 Interlock the paper roll 3 Feed in paper by pressing FEED button 4 The paper is now inserted 10 Label and ticket print 10 2 Printing labels and tickets 10 2 1 Label mode The pri...

Page 12: ...position The sensor must not see any black marks during this process Distances sensor print head cutter in mm GPT 4673 GPT 4672 B sensor print head 15 13 5 A print head cutter 13 5 12 Label mode can b...

Page 13: ...print efforts depending on the paper quality and adverse environmental conditions it may be necessary to clean the print head sensor and the platen roll especially if some areas are no longer printed...

Page 14: ...oss of data Solution Use or check handshake software Xon Xoff or hardware If necessary slow down transmission speed e g down to 1 200 baud See MAN E 559 Interface Settings TTl instead of RS232 interfa...

Page 15: ...gining with Serial Number 1001xxxx Produkte beginnend mit Seriennummer 1001xxxx GPT 4672 93 USB GPT 4672 93 V 24 GPT 4673 92 USB GPT 4673 92 V 24 GPT 4673 300 92 USB GPT 4673 300 92 V 24 The Products...

Page 16: ...USB 1200 2400 4800 9600 19200 38400 57600 115200 115 n 8 1 230400 460800 Mode selectable 7 8 data bits 1 2 stop bit none odd even parity Handshake Hardware handshake and XON XOFF factor approx 3 1 for...

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