Brother P-touch QL-710NW Service Manual Download Page 9 | Manualshive

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I - 4

1.1.6 Cutter

(1) Tape cutting

Durable automatic cutter

1.1.7 PC Interface

(1) Method

USB Standard

Ver.2.0 Full speed
Wireless LAN IEEE 802.11 b/g/n
Serial RS-232C (only for 720NW)
Ethernet 10/100 base-TX (only for 720NW)

(2) Supported OS

Windows;
Microsoft Windows XP/Windows Vista/Windows 7
Macintosh;
Mac OS X 10.4.11-10.6
(only with P-touch Editor 5.x)

(3) Printer emulation

PT CBP (Brother original)
ESC/P (only for 720NW)
P-touch template (only for 720NW)

(4) Accessories

Editor

Dedicated editor is included.

USB IF cable

Standard USB cable is included.

1.2 ELECTRONICS SPECIFICATIONS

1.2.1 Character Generator

Note: Character generator feature is provided only for QL-720NW.

(1) Demonstration printing

1) Press the Feed button when the power is OFF.
2) Keep pressing the Feed button and press the ON/OFF button for five seconds.
3) Release the Feed button while pressing the ON/OFF button.
4) Press the Feed button one time in a row while pressing the ON/OFF button.
5) Release the ON/OFF button.

Fig. 1.2-1 Demonstration Printing

1.2.2 Power Supply

Integral switching power supply

U.S.A. / Canada: 120V AC 60Hz
Europe, Other regions:
220V to 240V AC 50/60Hz

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Summary of Contents for P-touch QL-710NW

Page 1: ...P touch SERVICE MANUAL MODEL QL 710W 720NW ...

Page 2: ...e is always in best condition for the customer the service personnel must adequately understand and apply this manual This manual is made up of four chapters and appendices CHAPTER I SPECIFICATIONS CHAPTER II THEORY OF OPERATION CHAPTER III DISASSEMBLY AND REASSEMBLY CHAPTER IV TROUBLESHOOTING AND ERROR MESSAGE APPENDIX 1 SERVICEMAN SOFTWARE TOOL Copyright Brother 2012 All rights reserved No part ...

Page 3: ...PCB ASSY II 7 2 2 2 Media Type Detect Switch PCB Media PCB ASSY II 7 2 2 3 Media Position Detect Sensor PCB Tape Sensor PCB ASSY II 7 2 2 4 Button LED PCB SB PCB ASSY II 8 2 2 5 Cutter Sensor Cutter Home Position Detect Sensor II 8 2 2 6 Media Feed Motor Tape Feed Motor ASSY II 8 2 2 7 Full Cutter Motor Cutter Motor ASSY II 8 2 2 8 Thermal Head II 8 2 2 9 Wi Fi PCB ASSY II 8 2 3 MAIN PCB II 9 2 3 ...

Page 4: ... Top Cover ASSY and the Thermal Tape III 54 13 Demonstration Print and Final Check III 57 CHAPTER IV TROUBLESHOOTING AND ERROR MESSAGE 4 1 PRECAUTIONS IV 1 4 2 AFTER REPAIRING IV 1 4 3 STATUS LED CONTROL IN DIFFERENT SITUATIONS AND MEASURE AGAINST ERRORS IV 2 4 4 ERROR MESSAGE IV 4 4 5 TROUBLESHOOTING FLOWS IV 7 1 Printing is performed with specific dots omitted IV 7 2 The tape is not detected cor...

Page 5: ... for Chinese model completed inspections 1 11 1 5 Read serial no 1 12 1 6 Check MAC address 1 17 1 7 Write add media information 1 18 1 8 Sensor white level check 1 19 1 9 Sensor black level check 1 21 1 10 Temperature and WiFi button check 1 23 1 11 Media and cover sensors check 1 25 1 12 Cut test 1 27 1 13 Adjustment print test Continuous 1 28 1 14 Start WiFi module 1 30 1 15 Check WiFi MAC addr...

Page 6: ...mm 2 Weight Approx 1 20kg Machine proper only Approx 2 22kg In package Fig 1 1 1 External Appearance 1 1 2 Control Button and LED 1 Number of buttons 4 ON OFF Wi Fi Feed Cut 2 Layout See Fig 1 1 2 Fig 1 1 2 Layout 153mm 128mm 236mm Feed button Cut button Wi Fi LED Status LED ON OFF button Four buttons and two LED s Wi Fi button ...

Page 7: ...method Direct thermal printing with thermal head Printing on thermal paper tape and printing on thermal paper and thermal plastic tape with fixed head and tape feeding 2 Highest printing speed Max 93 labels min Standard address labels 3 Print head Type Thick film thermal head 720 dots by one row Resolution 300 dpi ...

Page 8: ... 90mm 32mm 100 sheets roll Postage Print only for U S A 32 9mm x 47 62mm 42mm 200 sheets roll Type of tape Roll width Roll overall width Effective length of roll Continuous Length Paper 12 12mm 32mm 30 48m Continuous Length Paper 29 29mm 32mm 30 48m Continuous Length Paper 38 only for EU 38mm 42mm 30 48m Continuous Length Paper 50 only for EU 50mm 54mm 30 48m Continuous Length Paper 62 62mm 66mm 3...

Page 9: ...tor Dedicated editor is included USB IF cable Standard USB cable is included 1 2 ELECTRONICS SPECIFICATIONS 1 2 1 Character Generator Note Character generator feature is provided only for QL 720NW 1 Demonstration printing 1 Press the Feed button when the power is OFF 2 Keep pressing the Feed button and press the ON OFF button for five seconds 3 Release the Feed button while pressing the ON OFF but...

Page 10: ...ce comes from a nip between the cylindrical rubber platen and the thermal head At this timing voltage is applied selectively to 720 pieces of heating elements arrayed on the thermal head By this voltage application the heating elements generate heat and the thermal tape develops dots by itself at heat sensing points After application of voltage the thermal tape is fed to the next printing position...

Page 11: ...d platen release lever and the release shaft presses down the head ASSY This movement releases the head ASSY from the platen ASSY Tape can be set under this condition By closing the top cover ASSY the head ASSY is automatically pressed against the platen ASSY Fig 2 1 2 Press Contact and Release Mechanism of Thermal Head Platen release lever Head spring L Platen ASSY Release gear Link lever Top cov...

Page 12: ...thermal head At this time the tape feed motor ASSY step motor rotates and its drive power is transmitted to the platen gear and the platen via the gear train and consequently the platen can feed the tape Fig 2 1 3 Tape Feed Mechanism Thermal tape Thermal head Platen Double gear C Double gear B Platen gear Double gear A Tape feed motor ASSY ...

Page 13: ...ar When the cam is rotated once the cutter motor stops and stays again at the position where the cutter home position detect sensor is ON This mechanism provides the reverse driving system in case of the tape jam between the 2 blades When the driving system is reversed the cutter motor stops and stays again at the position where the cutter home position detect sensor is ON Fig 2 1 4 Automatic Tape...

Page 14: ... the cover sensor arm pushes the cover open cover lock sensor push switch and the signal of the top cover ASSY close status is output Fig 2 1 5 Cover Open Cover Lock Sensor Push Switch SB PCB ASSY Cover sensor arm Cover open cover lock sensor push switch Top cover ASSY Cover open cover lock sensor push switch SB PCB ASSY Top cover ASSY Cover sensor arm ...

Page 15: ...tronics consist of the following components QL 710W Fig 2 2 1 Block Diagram of the Control Electronics QL 710W CN8 CN2 CN1 CN9 CN3 CN10 CN7 CN6 CN5 CN4 CN11 Wi Fi PCB ASSY PC Full cutter motor SB PCB ASSY Tape feed motor Media type detect switch PCB Media position detect sensor PCB Thermal head USB Power supply ASSY Cutter sensor ...

Page 16: ...ment 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 for the free length label using the reflection type photo sensor CN8 CN2 CN1 CN9 CN3 CN10 CN7 CN6 CN5 CN4 CN13 CN12 CN11 Wi Fi PCB ASSY PC Full cutter motor SB PCB ...

Page 17: ... media feed motor supplies the drive power to feed media This motor is step motor with 35 diameter and drive voltage is 25V 2 2 7 Full Cutter Motor Cutter Motor ASSY The cutter motor supplies the drive power to cut media This motor is a DC motor of which drive voltage is VH 25V 2 2 8 Thermal Head Thermal head is thick film and drive built in type thermal head which consists of 720 dots by one row ...

Page 18: ...nterface circuit 14 Serial interface circuit Fig 2 3 1 Block Diagram of the Main PCB INT INT INT USB I F EEPROM 16Kbit CPU LPL1830 NXP Media type detect circuit 5 selector switches Media position detect sensor circuit Photo sensor Cover open sensor circuit Cutter home position detect sensor circuit ON OFF button Feed Cut Wi Fi button LED Green Red Green LED AC power supply Switching power supply 3...

Page 19: ...urpose 1 0 1 0 0 File Folder 0 1 1 0 0 CD DVD 1 1 1 0 0 Square Paper 0 0 1 1 0 Round Paper 12 1 0 0 0 1 Round Paper 24 0 1 0 0 1 Postage Print only for U S A 0 1 1 1 0 Continuous Length Paper 12 0 1 0 1 1 Continuous Length Paper 29 0 0 1 0 1 Continuous Length Paper 38 only for EU 1 1 0 0 1 Continuous Length Paper 50 only for EU 1 1 0 1 1 Continuous Length Paper 62 1 0 1 0 1 Continuous Length Paper...

Page 20: ...your body 2 When transporting PCBs be sure to wrap them in conductive sheets such as aluminum foil 3 When using soldering irons and other heat generating tools take care not to damage the resin parts such as wires PCBs and covers 4 Be careful not to lose small parts such as screws washers or other parts removed for parts replacement 5 Tighten screws according to the tightening torque lists 6 Lubri...

Page 21: ... bind B M2 6x8 2 0 343 0 049 Back cover Taptite bind B M2 6x8 3 0 343 0 049 Power supply ASSY Taptite bind B M2 6x8 2 0 343 0 049 Ground spring plate Taptite bind B M2 6x8 1 0 343 0 049 FG harness ASSY Taptite bind B M2 6x8 1 0 343 0 049 Main PCB ASSY Taptite bind B M2 6x8 1 0 343 0 049 Media PCB ASSY Taptite bind B M2 6x8 2 0 343 0 049 Mecha ASSY Taptite bind B M2 6x8 2 0 343 0 049 Cutter unit AS...

Page 22: ...III 3 3 3 LUBRICATION POINTS LIST Grease to be used Grease B rice grain sized Release shaft Grease to be used Grease B rice grain sized Grease to be used Grease B rice grain sized Head ASSY Mecha ASSY ...

Page 23: ...III 4 Grease to be used Silicon grease G501 rice grain sized Platen gear Double gear C ...

Page 24: ... initialize the machine before disassembly 1 Turn off the ON OFF button and disconnect the AC cord Fig 3 4 1 Removing the Thermal Tape and the Top Cover ASSY 1 2 Open the top cover ASSY 3 Remove the thermal tape from the machine Fig 3 4 2 Removing the Thermal Tape and the Top Cover ASSY 2 AC cord ON OFF button 1b 1a Top cover ASSY 2 3 Thermal tape ...

Page 25: ...urn the top cover ASSY while pulling the link lever and align the tab of the boss with the groove of the link lever and then remove the link lever from the top cover ASSY Fig 3 4 4 Removing the Thermal Tape and the Top Cover ASSY 4 4a 4b Rib 4a Rib 4b Top cover ASSY Upper cover Top cover ASSY Upper cover Bosses Ribs Top cover ASSY Link lever Groove Tab Boss 5b 5a ...

Page 26: ...III 7 6 Remove the two screws from the top cover ASSY Fig 3 4 5 Removing the Thermal Tape and the Top Cover ASSY 5 Screws Top cover ASSY ...

Page 27: ...en remove the lower plate ASSY from the under cover Fig 3 4 6 Removing the Panel Cover 1 3 Disconnect the connector CN3 of the SB PCB ASSY from the main PCB ASSY Fig 3 4 7 Removing the Panel Cover 2 Screws Screws Lower plate ASSY Under cover CN10 CN8 CN3 CN9 CN6 CN1 CN7 CN5 CN4 CN2 Main PCB ASSY ...

Page 28: ... cover to the direction of the arrow from the upper cover Fig 3 4 8 Removing the Panel Cover 3 7 Turn the panel cover upside down 8 Remove the two screws and then remove the SB PCB ASSY from the panel cover Fig 3 4 9 Removing the Panel Cover 4 Screws Panel cover Hook Hook Section A Upper cover Screws Panel cover SB PCB ASSY ...

Page 29: ...ton and the LED guide from the panel cover Fig 3 4 10 Removing the Panel Cover 5 10 Remove the cover sensor arm from the panel cover Fig 3 4 11 Removing the Panel Cover 6 Panel cover LED guide Feed button Power button Panel cover Cover sensor arm ...

Page 30: ...screws A and five screws B from the upper cover 3 Release the two hooks to disassemble the upper cover and the under cover NOTE The screws A are screw bind M2 6x4 The screws B are taptite bind B M2 6x8 Fig 3 4 12 Disassembling the Upper Cover and the Under Cover 1 CN4 Under cover Hook Screws B Screws B Screws A Hook Upper cover Main PCB ASSY Bottom side view ...

Page 31: ...over Fig 3 4 13 Disassembling the Upper Cover and the Under Cover 2 5 Turn the upper cover upside down and then remove the two screws and remove the insert guide from the upper cover Fig 3 4 14 Disassembling the Upper Cover and the Under Cover 3 Guide Upper cover Flat cable of the tape sensor PCB ASSY Screws Insert guide Upper cover ...

Page 32: ...III 13 6 Remove the tape sensor PCB ASSY from the insert guide Fig 3 4 15 Disassembling the Upper Cover and the Under Cover 4 Tape sensor PCB ASSY Insert guide ...

Page 33: ... Remove the WIFI cover A the PCB WYSAGBUX7 1 05 and the WIFI cover B from the under cover 3 Disconnect the WLAN harness ASSY from the PCB WYSAGBUX7 1 05 Fig 3 4 16 Removing the PCB WYSAGBUX7 1 05 CN9 PCB WYSAGBUX7 1 05 WLAN harness ASSY Main PCB ASSY Under cover Bottom side view WIFI cover A WIFI cover B ...

Page 34: ...I 15 5 Removing the Back Cover 1 Turn the machine upside down 2 Remove the three screws and then remove the back cover from the under cover Fig 3 4 17 Removing the Back Cover Back cover Under cover Screws ...

Page 35: ...e power supply ASSY cannot be removed yet Fig 3 4 18 Removing the Power Supply ASSY and the Main PCB ASSY 1 2 Disconnect the main PCB harness from the power supply ASSY 3 Disconnect the power8 harness ASSY CN2 from the main PCB ASSY Fig 3 4 19 Removing the Power Supply ASSY and the Main PCB ASSY 2 Sub ASSY inlet harness Screws Power supply ASSY Under cover Power supply ASSY Power8 harness ASSY Mai...

Page 36: ...e Power Supply ASSY and the Main PCB ASSY 3 5 Disconnect the four connectors CN5 CN6 CN7 CN10 and flat cable CN8 from the main PCB ASSY Fig 3 4 21 Removing the Power Supply ASSY and the Main PCB ASSY 4 Power supply ASSY Power8 harness ASSY CN10 CN8 CN3 CN9 CN6 CN1 CN7 CN5 CN4 CN2 Main PCB ASSY ...

Page 37: ... ASSY 7 Remove the main PCB ASSY and the shield plate ASSY from the under cover in the direction of the arrow while the A of the under cover is bending Fig 3 4 22 Removing the Power Supply ASSY and the Main PCB ASSY 5 Screws FG harness ASSY Screw Ground spring plate Main PCB ASSY Under cover Shield plate ASSY A ...

Page 38: ... Sub ASSY Inlet 1 2 Release the hooks on both sides of the sub ASSY inlet and pull the inlet to the direction of the arrow as shown in the figure below to remove it from the under cover Fig 3 4 24 Removing the Sub ASSY Inlet 2 Sub ASSY inlet harness Sub ASSY inlet harness Power supply ASSY Bottom side view Sub ASSY inlet Under cover Hooks ...

Page 39: ...III 20 8 Removing the Media PCB ASSY 1 Remove the two screws and then remove the media PCB ASSY from the under cover Fig 3 4 25 Removing the Media PCB ASSY Screws Media PCB ASSY Under cover ...

Page 40: ... the direction of the arrow to release the two hooks of the mecha ASSY from the under cover and then remove the mecha ASSY from the under cover 3 Remove the filament tape from the under cover Fig 3 4 26 Removing the Mecha ASSY Mecha ASSY Screws Hook Under cover Hook Hook 2b 2a Mecha ASSY Filament tape ...

Page 41: ...III 22 10 Removing the Cutter Unit ASSY 1 Remove the two screws and then remove the cutter unit ASSY from the mecha ASSY Fig 3 4 27 Removing the Cutter Unit ASSY Screws Cutter unit ASSY Mecha ASSY ...

Page 42: ...remove the double gear C from the mecha ASSY Fig 3 4 28 Disassembling the Mecha ASSY 1 2 Remove the double gear B and the platen gear from the mecha ASSY Fig 3 4 29 Disassembling the Mecha ASSY 2 Hook Double gear C Mecha ASSY Mecha ASSY Double gear B Platen gear ...

Page 43: ...assembling the Mecha ASSY 3 4 Remove the platen ASSY from the mecha ASSY 5 Remove the screw and then remove the platen shaft bushing left side Fig 3 4 31 Disassembling the Mecha ASSY 4 Screw Platen shaft bushing Right side Mecha ASSY Platen shaft bushing Left side Platen ASSY Mecha ASSY Screw ...

Page 44: ...III 25 6 Remove the head hold spring from the mecha ASSY Fig 3 4 32 Disassembling the Mecha ASSY 5 Mecha ASSY Head hold spring 6a 6b 6c ...

Page 45: ...pact on the heating element of a head ASSY when removing the head ASSY Fig 3 4 33 Disassembling the Mecha ASSY 6 8 Remove the two head springs L from the mecha ASSY Fig 3 4 34 Disassembling the Mecha ASSY 7 Head ASSY 7a Mecha ASSY Head ASSY Heating element 7b 7b 7c 7d Head springs L Mecha ASSY ...

Page 46: ...ig 3 4 35 Disassembling the Mecha ASSY 8 10 Remove the two screws and then remove the tape feed motor ASSY and the FG harness ASSY from the mecha ASSY Fig 3 4 36 Disassembling the Mecha ASSY 9 Mecha ASSY Double gear A Retaining ring E2 5 Mecha ASSY Screws FG harness ASSY Tape feed motor ASSY ...

Page 47: ...the tape feed motor ASSY Fig 3 5 1 Reassembling the Mecha ASSY 1 2 Set the double gear A onto the shaft of the mecha ASSY with the retaining ring E2 5 NOTE 1 Confirm that the retaining ring E2 5 is firmly assembled NOTE 2 Confirm that each gear moves smoothly Fig 3 5 2 Reassembling the Mecha ASSY 2 Mecha ASSY Screws FG harness ASSY Tape feed motor ASSY Mecha ASSY Double gear A Retaining ring E2 5 ...

Page 48: ...III 29 3 Set the two head springs L onto the bosses of the mecha ASSY Fig 3 5 3 Reassembling the Mecha ASSY 3 Head springs L Mecha ASSY Bosses ...

Page 49: ...lower bosses CAUTION Pay attention not to give strong impact on the heating element of a head ASSY when mounting the head ASSY Fig 3 5 4 Reassembling the Mecha ASSY 4 Bosses Insert the head springs L properly into the bosses of the head ASSY Insert the head springs L properly into the bosses of the mecha ASSY Head ASSY Head springs L Release shaft Release shaft Hook the left and right arms of the ...

Page 50: ...III 31 5 Set the head hold spring onto the mecha ASSY as shown in the figure below NOTE Be careful not to cut your fingers Fig 3 5 5 Reassembling the Mecha ASSY 5 Mecha ASSY Head hold spring 5a 5b 5c ...

Page 51: ...laten ASSY onto the mecha ASSY Fig 3 5 6 Reassembling the Mecha ASSY 6 8 Set the platen shaft bushing right side onto the mecha ASSY with the screw Fig 3 5 7 Reassembling the Mecha ASSY 7 Platen shaft bushing Left side Platen ASSY Mecha ASSY Screw Screw Platen shaft bushing Right side Mecha ASSY ...

Page 52: ...C onto the mecha ASSY in this order NOTE 1 Confirm that the hook of the double gear C is securely hooked on NOTE 2 Confirm that each gear moves smoothly Fig 3 5 8 Reassembling the Mecha ASSY 8 Mecha ASSY Double gear B Platen gear Hook Double gear C Mecha ASSY 9b 9a 9c ...

Page 53: ...III 34 2 Installing the Cutter Unit ASSY 1 Set the cutter unit ASSY onto the mecha ASSY with the two screws Fig 3 5 9 Installing the Cutter Unit ASSY Screws Cutter unit ASSY Mecha ASSY ...

Page 54: ...he section A of the panel cover Fig 3 5 10 Reassembling the Panel Cover 1 2 Set the LED guide the feed button and the power button onto the panel cover Fig 3 5 11 Reassembling the Panel Cover 2 Panel cover Cover sensor arm Shaft unit Section A Panel cover LED guide Feed button Power button ...

Page 55: ...low Fig 3 5 12 Reassembling the Panel Cover 3 5 Pass the harness of the SB PCB ASSY through the hole of the under cover Fig 3 5 13 Reassembling the Panel Cover 4 NOTE For installing the panel cover to the upper cover refer to 11 Installing the Panel Cover Screws Panel cover SB PCB ASSY Panel cover Rib Harness of the SB PCB ASSY Cover sensor arm Under cover Harness of the SB PCB ASSY Hole ...

Page 56: ...rooves on the under cover 4 Fit the hole B of the mecha ASSY into the boss on the under cover and fit the two ribs of the mecha ASSY into the holes C on the under cover 5 Secure the mecha ASSY with the two screws Fig 3 5 14 Installing the Mecha ASSY Mecha ASSY Screws Hook A Under cover Hook A Hook A Rib Rib Hole C Hole C Boss Hole A Harness of the cutter sensor Harness of the cutter motor Hole B H...

Page 57: ...shown in the figure below Fig 3 5 15 Routing the Harnesses Hook Mecha ASSY Hole Hole FG harness ASSY Harness of the cutter unit ASSY Harness of the SB PCB ASSY Hole Flat cable of the head ASSY Harness of the mecha ASSY Harness of the tape feed motor ASSY Hole Front Boss Harness of the cutter unit ASSY Slit Wind the harness on the boss twice ...

Page 58: ...39 5 Installing the Media PCB ASSY 1 Turn the machine upside down 2 Set the media PCB ASSY onto the under cover with the two screws Fig 3 5 16 Installing the Media PCB ASSY Screws Media PCB ASSY Under cover ...

Page 59: ...until its hooks are properly hooked Fig 3 5 17 Reassembling the Sub ASSY Inlet 1 3 Solder the harnesses of the sub ASSY inlet to the power supply ASSY as shown in the figure below Fig 3 5 18 Reassembling the Sub ASSY Inlet 2 Under cover Sub ASSY inlet Hooks Hole Harnesses of the sub ASSY inlet Power supply ASSY Harnesses of the sub ASSY inlet Bottom side view Harnesses of the sub ASSY inlet ...

Page 60: ...SSY inlet and the harness of the media PCB ASSY as shown in the figure below Fig 3 5 19 Reassembling the Sub ASSY Inlet 3 Hook Under cover Front Hook Hook Hook Sub ASSY inlet To power supply ASSY Media PCB ASSY Harness of the sub ASSY inlet ...

Page 61: ... them onto the under cover 2 Set the ground spring plate and the FG harness ASSY onto the main PCB ASSY and then secure them with the three screws Fig 3 5 20 Installing the Main PCB ASSY and the Power Supply ASSY 1 Screws FG harness ASSY Screw Ground spring plate Main PCB ASSY FG harness ASSY Boss Under cover Shield plate ASSY ...

Page 62: ...e Power Supply ASSY 2 4 Connect the power8 harness ASSY CN2 onto the main PCB ASSY 5 Connect the main PCB harness onto the power supply ASSY Fig 3 5 22 Installing the Main PCB ASSY and the Power Supply ASSY 3 Power supply ASSY Power8 harness ASSY Power supply ASSY Power8 harness ASSY Main PCB ASSY Main PCB harness ...

Page 63: ...e Main PCB ASSY and the Power Supply ASSY 4 7 Connect the four connectors CN5 CN6 CN7 CN10 and the flat cable CN8 onto the main PCB ASSY Fig 3 5 24 Installing the Main PCB ASSY and the Power Supply ASSY 5 Harness of the sub ASSY inlet Screws Power supply ASSY Under cover Slit Main PCB harness Power8 harness ASSY CN10 CN8 CN3 CN9 CN6 CN1 CN7 CN5 CN4 CN2 Main PCB ASSY ...

Page 64: ...cable are routed as shown in the figure below Fig 3 5 26 Routing the Harnesses and the Flat Cable Harness of the tape feed motor ASSY Main PCB ASSY CN6 Slit Front Harness of the media PCB ASSY Harness of the tape feed motor ASSY FG harness ASSY Cutter motor harness Harness of the SB PCB ASSY Flat cable of the head ASSY Power8 harness ASSY Cutter sensor harness Main PCB harness ...

Page 65: ...III 46 8 Reassembling the Back Cover 1 Set the back cover onto the under cover with the three screws Fig 3 5 27 Reassembling the Back Cover Back cover Under cover Screws ...

Page 66: ...the WIFI cover B the PCB WYSAGBUX7 1 05 and the WIFI cover A onto the under cover CAUTION Confirm that the pin are properly inserted into the positioning hole of the PCB WYSAGBUX7 1 05 Fig 3 5 28 Installing the PCB WYSAGBUX7 1 05 WLAN harness ASSY PCB WYSAGBUX7 1 05 Pin Under cover Hole Flat cable of the head ASSY WLAN harness ASSY Positioning hole WIFI cover A WIFI cover B ...

Page 67: ...e groove of the insert guide NOTE 2 Confirm that you can see the tape sensor PCB ASSY from the hold of the insert guide NOTE 3 Fold the flat cable after assembling the tape sensor PCB ASSY Fig 3 5 29 Reassembling the Upper Cover and the Under Cover 1 Tape sensor PCB ASSY Groove Insert guide Groove Tape sensor PCB ASSY Insert guide Flat cable of the tape sensor PCB ASSY ...

Page 68: ...sembling the Upper Cover and the Under Cover 2 4 Turn the upper cover upside down and then pass the flat cable of the tape sensor PCB ASSY through the guide of the upper cover Fig 3 5 31 Reassembling the Upper Cover and the Under Cover 3 Screws Insert guide Upper cover Hole Flat cable of the tape sensor PCB ASSY Guide Upper cover Flat cable of the tape sensor PCB ASSY ...

Page 69: ...ure bonding state Fig 3 5 32 Reassembling the Upper Cover and the Under Cover 4 6 Pass the flat cable of the tape sensor PCB ASSY through the hole on the under cover Fig 3 5 33 Reassembling the Upper Cover and the Under Cover 5 Mecha ASSY Link lever Platen release lever Flat cable of the tape sensor PCB ASSY Under cover Hole ...

Page 70: ... cover onto the under cover 8 Secure the upper cover with the two screws A and the five screws B NOTE The screws A are screw bind M2 6x4 The screws B are taptite bind B M2 6x8 Fig 3 5 34 Reassembling the Upper Cover and the Under Cover 6 Under cover Hook Screws B Screws B Screws A Hook Upper cover Upper cover Hole Link lever ...

Page 71: ...er 2 Secure the panel cover with the two screws NOTE Confirm that the harnesses are not pinched Fig 3 5 35 Installing the Panel Cover 1 3 Connect the three connectors CN3 CN4 CN9 onto the main PCB ASSY Fig 3 5 36 Installing the Panel Cover 2 Screws Panel cover Hooks A Hook B Hook B Rib Rib Upper cover Hole Hole CN10 CN8 CN3 CN9 CN6 CN1 CN7 CN5 CN4 CN2 Main PCB ASSY ...

Page 72: ...III 53 4 Set the lower plate ASSY onto the under cover with the four screws Fig 3 5 37 Installing the Panel Cover 3 Screws Screws Lower plate ASSY Under cover ...

Page 73: ...ecure the top cover ASSY with the two screws Fig 3 5 38 Installing the Top Cover ASSY and the Thermal Tape 1 2 Set the link lever onto the top cover ASSY Fig 3 5 39 Installing the Top Cover ASSY and the Thermal Tape 2 Screws Top cover ASSY Top cover ASSY Link lever ...

Page 74: ...o the corresponding rib hole of the upper cover and then fit the other boss into the rib hole by bending the rib Fig 3 5 40 Installing the Top Cover ASSY and the Thermal Tape 3 3a 3b Rib 3a Rib 3b Top cover ASSY Upper cover Top cover ASSY Upper cover Bosses Ribs ...

Page 75: ...III 56 4 Set the thermal tape onto the machine 5 Close the top cover ASSY Fig 3 5 41 Installing the Top Cover ASSY and the Thermal Tape 4 Top cover ASSY 5 4 Thermal tape ...

Page 76: ...w while pressing the ON OFF button 5 Release the ON OFF button Then 100mm full width gray print is performed and repeated until the power is turned OFF Print sample 3 Confirm that the tape is sent properly print is correct and the tape is cut properly during the demonstration print If you find any problems consult CHAPTER IV TROUBLESHOOTING AND ERROR MESSAGE 4 Open the top cover ASSY and confirm t...

Page 77: ...and examines this chapter carefully 4 1 PRECAUTIONS Be sure to observe the following precautions to prevent the secondary problems from happening during troubleshooting 1 Make sure to unplug an AC cord to ensure no power supply when doing conductivity test with a tester 2 When printing error occurs pull out the thermal head cable from the connecter until the peripheral circuit related to the therm...

Page 78: ...rable error Service call is required Status LED State Turned OFF Power OFF Green LED ON Power ON Orange LED ON Cover open While the machine is not running Blinking 1 sec frequency In a cooling state Blinking 2 sec cycle Error Media mark detect error Tape mounting error End of tape Tape jam Media mismatch or no media Communication error Cover open while the machine is running Image lay out error Lo...

Page 79: ...error EEP ROM error Blinking 1 8 sec cycle Cutter error Cutter reverse mode Red LED ON Boot mode Status LED State LED OFF for 0 3 sec Red LED ON for 0 3 sec LED OFF for 0 3 sec LED OFF for 0 9 sec Red LED ON for 0 3 sec Red LED ON for 0 3 sec ...

Page 80: ...ication Option 1 Install the correct roll of labels or tape into the machine and then click on Resume to continue to print Option 2 Click Cancel to cancel print job Change the paper setting in the application so that it matches the media loaded in the machine Then try printing again Cover open Close the cover Connected Brother QL is not Brother QL 710W 720NW Connect the correct model Paper cannot ...

Page 81: ...ing sent Please wait Printing Printing Please wait Cooling Please wait a while The Brother QL is cooling down the print head Wait a while The Brother QL is being used The Brother QL is being used After waiting a short while click Resume in the Brother QL monitor Error of unknown cause occurred Turn the printer off then on again If the error cannot be resolved repairs will be necessary Error Messag...

Page 82: ... that Head thermistor is defective Replace the Main PCB Assy and check again In case of Motor Temp is NG There is a possibility that Motor thermistor is defective Replace the Main PCB Assy and check again In case of WiFi Button is NG Check if there is no obstacle around the WiFi button Media and cover sensors check Check failure Sensor test was canceled 1 Check if there is no obstacle around the m...

Page 83: ...Y Replace the head spring L Is the head pressure 1 7kg 10 at the roller center Is the head spring L attached correctly Attach the head spring L in correct way Are the thermal head and the platen dirty The thermal head and the platen are dirty Clean the thermal head and the platen The thermal head is defective Replace the thermal head ASSY Is the platen rubber deformed ...

Page 84: ...ce the media PCB ASSY Load a tape correctly Install the sensor correctly The sensor is defective Replace the media PCB ASSY Is the output signal of the media PCB correct Is a tape loaded correctly Is the media type detect sensor installed correctly Is the sensor harness damaged Replace the main PCB ASSY ...

Page 85: ...input signal to the button OK Replace the main PCB ASSY Correct the connection The ON OFF button supports the Status LED The Wi Fi button supports the Wi Fi LED Replace the SB PCB ASSY Replace the SB PCB ASSY Replace the SB PCB ASSY Is the voltage between each pin more than 3V with an oscilloscope STATUS LED Green CN3 Pin4 Red CN3 Pin3 Wi Fi LED Green CN3 Pin8 ...

Page 86: ... Is the thermal head appearance normal If replace the main PCB ASSY is it OK Replace the power supply ASSY Y N N Y The serial cable and the LAN cable are equipped only for QL 720NW The interface malfunction Is the USB cable or serial cable or LAN cable connected correctly Is the USB cable or serial cable or LAN cable damaged The USB cable or serial cable or LAN cable is defective Replace the cable...

Page 87: ...the Wi Fi LED turned on Y The Wi Fi LED is not turned on even by pressing the Wi Fi button Y Does the main PCB ASSY break down N N Is the harness of the Wi Fi PCB connected Connect the harness N Replace the SB PCB ASSY Y Replace the main PCB ASSY Y Replace the main PCB ASSY ...

Page 88: ...unit ASSY Y Does the cutter motor rotate N Replace the cutter unit ASSY Y Is the motor harness damaged N Replace the cutter unit ASSY N Is the connecter connected to the main PCB correctly Y Correct the connection Y N Replace the main PCB ASSY If replace the main PCB ASSY is it OK Replace the cutter unit ASSY ...

Page 89: ... ASSY Replace the main PCB ASSY Try to print after replace a new roll Is tape feed normal Is paper dust on the platen Is the head spring L attached correctly Is the motor connected correctly Is the motor harness damaged If replace the main PCB ASSY is it OK Is the head pressure 1 7kgf 10 at the roller center Does the motor rotate Do the gears rotate The platen is defective Replace the platen ASSY ...

Page 90: ...d to check operation of each function or to write the settings and serial number after repairing the machine or replacing the PCB This tool does not inspect wired LAN communication QL 720NW only and wireless LAN communication QL 710W 720NW A separate inspection is required 1 1 2 Items Required for the Inspection Prepare the following items before performing inspection Inspection fixture Remark Per...

Page 91: ...ng of the Inspection 1 Connect the machine to the PC with a communication cable Use a USB cable for the QL 710W and an RS 232C cable for the QL 720NW After connecting the power cable to the machine turn ON the power NOTE The connection method differs depending on the model QL 710W Connect the machine to the PC with a USB cable QL720NW Connect the machine to the PC with an RS 232C cable 2 Start the...

Page 92: ...und of VR adjustment is yellow and click the Run button Fig 3 Starting of VR adjustment 5 Check the VR value displayed in the Results field The VR value is normal when it is within the pass range 218 to 222 Check that OK is displayed in the Results field and quit VR adjustment Fig 4 VR adjustment OK 62mmx100mm 2 3 7 x4 202 6 2 m m x 1 0 0 m m 2 3 7 x 4 2 0 2 Tape sensor PCB ASSY Release coated pap...

Page 93: ...field is within the range of 218 to 222 NOTE Check that the screwdriver is set in the groove on the VR adjustment screw and then turn the VR adjustment screw slowly The VR adjustment screw can only be turned within a limited range Do not force it 8 When adjusted so that OK is displayed in the Results field click the Stop button Fig 6 Volume cover label Fig 7 VR adjustment OK after adjusting Screwd...

Page 94: ...label to the adjustment hole on the upper cover Fig 8 Attaching of volume cover label 10 VR adjustment is completed Click the X button on the upper right of the screen to quit the tool New volume cover label Upper cover Adjustment hole ...

Page 95: ...COM port needs to be changed depending on the PC to be used change it as described below NOTE Changing the COM port affects VR adjustment for the QL 720NW 1 Click the General settings button on the main screen Fig 9 General settings button 2 Config screen appears Click the Setting button next to the Target connection Fig 10 Setting button next to the Target connection ...

Page 96: ...ck the OK button A screen with Do you save Port No message appears then click the OK button again NOTE The changed setting is saved even after closing the tool Fig 11 COM setting 4 Return to the Config screen and click the OK button to return to the main screen Change the port by selecting desirable COM port number ...

Page 97: ...le to start the Serviceman Software Tool NOTE Be sure to keep setting files ini prn originally stored in the same folder with the execution file ProductChkTool exe The tool is inoperable without the file NOTE Multiple tools cannot be started simultaneously Connect the machine to the PC with the USB cable Perform inspection using USB communication for both the QL 710W and QL 720NW Connect the power...

Page 98: ...e selected inspection click the Down or Up button Upon completing all required inspections click the To next check button to start the next inspection Fig 13 Main screen QL 720NW Serviceman Software Tool The background turns yellow when selected Start the selected inspection Change the inspection item Clear the results of inspection and shift the next inspection ...

Page 99: ... serial no Check MAC address 1 Write add media information Write default eeprom data 2 Sensor white level check Sensor black level check Temperature and WiFi button check Media and cover sensors check Cut test Adjustment print test Continuous Adjustment print test Diecut 2 Start WiFi module Check WiFi MAC address 3 Stop WiFi module 4 Write serial no USB USB USB USB USB USB USB USB USB USB USB USB ...

Page 100: ... before performing the inspection again If the machine still shows NG on the inspection check the machine inspection jigs and facilities for any problem 1 4 2 Precautions for all models completed inspections When you turn off the machine after any inspection make sure that the Status LED went off by pressing ON OFF button then unplug the power cable Unplugging the power cable first may enable WiFi...

Page 101: ...n the serial number is not written in the machine If the inspection is started be sure to implement Write serial no lastly 1 If the top cover ASSY is opened close the top cover ASSY And then check that the Status LED upper side of ON OFF button lights up green Fig 14 Status LED cover close 2 Check that the background of Read serial no is yellow and click the Run button Fig 15 Read serial no start ...

Page 102: ...revent incorrect entry Fig 16 Read Serial No screen Information will be shown in the Model Info field on left bottom of the Input Serial No screen Check if you have the latest available version of ModelCheck ini file If you have older version unsupported model code will be NG on the inspection Fig 17 Model Info field ...

Page 103: ...del code Destination U63226 USA U63703 CAN E70915 GBR E75592 GBR E71192 DEU E75594 DEU E71194 FRA E75596 FRA E71201 CHE E75598 DNK E71196 ESP E75600 HUN E71199 DNK E71211 HUN E72117 RUS Model code Destination Model code Destination U63227 USA E71683 SGP E70917 GBR E71685 THA E71225 IND E71687 KOR U63328 CAN E71689 ZAF E71190 AUS E71691 ARE E71210 DEU E71693 HKG E71209 FRA E71695 TWN E71202 CHE E71...

Page 104: ...ead serial no error Can not connect Communication with the machine is not possible Check that the machine is connected to the PC with the USB cable correctly and the power for the machine is turned ON Fig 19 Unconnected error Model NG Model code first 6 digits of the serial number is not for the relevant model QL 710W would be confused with QL 720NW or vice versa Check that the nameplate shows the...

Page 105: ...ial numbers do not match The serial numbers entered first differs from the one entered second Click the Clear button to clear the entered value and enter the serial number again Fig 21 Serial numbers mismatch error ...

Page 106: ...the Run button To highlight the inspection item use the Up or Down button on the screen or use the key on the keyboard to move the focus bar Fig 22 Check MAC address start up 2 The read MAC address for wired LAN is displayed in MAC address field on the top of the screen when the inspection is performed Successful message and MAC address also appear in the Results field The next inspection starts a...

Page 107: ...r failing on the media writing once check that the Write add media information field is highlighted in yellow then press the Run button 2 The inspection is completed when the information is successfully written and the message below appears in the Results field If the writing is failed error message appears in the Results field and the inspection ends up as NG If you want to stop the writing after...

Page 108: ... the acceptable range the OK NG dialogue is displayed A When the release coated paper is set correctly Click the OK button to finish the inspection B When the release coated paper is not set correctly Click the NG button to finish the inspection And then reset the release coated paper correctly and inspect again NOTE When the measured value is out of the acceptable range the OK NG dialogue is not ...

Page 109: ...ite level 210 Measured value 235 Fig 27 Sensor level check screen 4 The measured value is displayed in the Results field on the main screen if the inspection is finished Display example in case of NG Fig 28 Sensor white level check NG error ...

Page 110: ...en click the Run button Fig 30 Sensor black level check start up 3 If the measured value is within the acceptable range the OK NG dialogue is displayed A When the release coated paper etc is not set Click the OK button to finish the inspection B When the release coated paper etc is set Click the NG button to finish the inspection And then remove the release coated paper and inspect again NOTE When...

Page 111: ...lack level 0 Measured value 60 Fig 31 Sensor level check screen 4 If the inspection is finished with OK the measured value is displayed in the Results field on the main screen Display example in case of OK Fig 32 Sensor black level check OK ...

Page 112: ... that the inspection item on the main screen is highlighted in yellow then click the Run button Fig 33 Temperature and WiFi button check start up NOTE When the machine is entered in the inspection state the Status LED does not change even if open and close the top cover ASSY 2 This inspection acquires the current value of each item from the machine and displays them in the dialogue Fig 34 Temperat...

Page 113: ...WiFi LED left LED turns on the light Fig 35 WiFi button test mode 4 If the pressing of the WiFi button can be checked on the tool side the inspection is finished with OK And advance to the next inspection When the inspection is not finished with WiFi button pressed the WiFi button is defective Click the NG button on the tool to finish the inspection with NG Check that the WiFi LED left LED turns o...

Page 114: ... the media sensor is pushed at the starting time of the inspection It is not displayed in the state of the normal procedure When the media sensor is released shift to the next state Fig 37 Media sensors release instruction NOTE When the message is displayed even if nothing touches the media sensor finish the inspection by clicking the NG button 3 If the following message is displayed push all medi...

Page 115: ...Undo to Done And then the inspection screen is closed The inspection is completed Fig 40 Completing Media and cover sensors check NOTE It take a little time for a while until the inspection screen is closed after displaying the message Push the displayed sensors If MediaSensor 1 to 5 change to Done close the top cover ASSY to change the CoverSensor to Done The state of the sensor is displayed in r...

Page 116: ... cover ASSY Fig 41 Cut test start up 2 If the Press Feed Key is displayed on the Results field in the main screen check that the free length tape 62mm is set into the machine And then press the Feed button on the machine NOTE Click the Stop button when stopping Fig 42 Checking Feed 3 If the feeding of the machine is performed correctly and the Press Cut Key is displayed on the Results field in the...

Page 117: ...n click the Run button Fig 44 Adjustment print test Continuous start up 2 If the adjustment of the margin is started the Adjust print screen is displayed and the test pattern is printed NOTE Click the NG button to stop the printing on the way Fig 45 Continuous print pattern 62mm 3 If the test pattern is printed the OK NG dialogue is displayed Measure whether the top margin is the specified value 3...

Page 118: ...the specified value NOTE The adjustment value is possible to change with the keys or the Up Down buttons NOTE Click the NG button when stopping the adjustment Fig 47 Adjust print screen 5 If the adjustment value is selected click the Print button to print the test pattern again 6 If the test pattern is printed the OK NG dialogue is displayed When the top margin is within the specified value Click ...

Page 119: ...button when the LED above the WiFi on the front panel of the machine lights or blinks in green Click NG button to quit the inspection if the LED does not light though the wireless LAN module has started If any error occurs at wireless LAN module start up the result becomes NG without showing OK NG dialogue 3 Inspection is completed when OK is displayed at the left of the inspection item field Chec...

Page 120: ...1 Check WiFi MAC address start up 2 The wireless LAN MAC address read is displayed in WiFi Mac address field on the top of the screen when the inspection is performed Successful message and WiFi MAC address also appear in the Results field When this inspection is completed the next inspection Stop WiFi module can be performed Fig 52 Check wireless LAN MAC address inspection OK MAC address for wire...

Page 121: ...k that the inspection item on the main screen is highlighted in yellow then click the Run button Fig 53 Stop WiFi module start up 2 Inspection is completed when OK is displayed at the left of the inspection item field Check that the WiFi indicator is not lit Fig 54 Stop WiFi module OK ...

Page 122: ...nd EEPROM version written into the machine is displayed in the Results field on the main screen Fig 56 After completing Write serial no 3 If click the Reject or the To next check button the inspection of Serviceman Software Tool is completed Proceed to the next inspection or click X on the upper right of the screen to quit the tool NOTE When you turn off the machine make sure that the Status LED w...

Page 123: ...Apr 2012 SM PT048 6 Printed in Japan ...

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