II- 6
2.2
OUTLINE OF CONTROL ELECTRONICS
Fig. 2.2-1 shows the block diagram of the control electronics. The control electronics consist of
the following components.
Fig. 2.2-1 Block Diagram of the Control Electronics
2.2.1
Main PCB ASSY
This manages all the components. This PCB consists of CPU, EEPROM, USB chip and motor
drivers etc.
2.2.2
Media Type Detect Switch PCB (Media PCB ASSY)
The sensor (mechanical SW) that detects media type and size is connected to main PCB ASSY.
A semi-fixed resistance (VR) for adjustment of the media position detect sensor is mounted on it.
2.2.3
Media Position Detect Sensor PCB (Tape Sensor PCB ASSY)
This sensor detects the printing start position for the die cut label, and checks existence of the
zebra pattern media using refection type photo sensor for the free length label.
Содержание QL 570 - P-Touch B/W Direct Thermal Printer
Страница 1: ...P touch SERVICE MANUAL MODEL QL 570 ...
Страница 29: ...III 4 Grease to be used Silicon grease G501 rice grain sized Platen gear Double gear C ...
Страница 84: ...IV 6 4 5 TROUBLESHOOTING FLOWS 1 Printing is performed with specific dots omitted ...
Страница 85: ...IV 7 2 The tape is not detected correctly ...
Страница 86: ...IV 8 3 LED does not turn on ...
Страница 87: ...IV 9 4 No printing is performed 5 The interface malfunction ...
Страница 88: ...IV 10 6 The tape is not cut ...
Страница 89: ...IV 11 7 The tape is not fed correctly ...
Страница 104: ... 7 If the check result is OK click the 2 Quit sensors check button If NG click the Sensors test NG button Fig 17 15 ...
Страница 122: ...Sep 2007 SM PT002 3 ...