Toshiba GD-1210, GD-1260, GD-1250, GD-1270, GD-1160 service manual General Precautions at Service

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-Select a suitable place for installation. Avoid excessive heat, high humidity, dust, vibration and direct sunlight.

-Provide proper ventilation since the equipment emits a slight amount of ozone.

-To insure adequate working space for the copying operation, keep a minimum clearance of 80 cm (32”) on the left, 80 cm (32”) on the right and 10 cm (4”) on the rear.

-The equipment shall be installed near the socket outlet and shall be accessible.

-Be sure to fix and plug in the power cable securely after the installation so that no one trips over it.

2)General Precautions at Service

-Be sure to turn the power OFF and unplug the power cable during service (except for the service should be done with the power turned ON).

-Unplug the power cable and clean the area around the prongs of the plug and socket outlet once a year or more. A fire may occur when dust lies on this area.

-When the parts are disassembled, reassembly is the reverse of disassembly unless otherwise noted in this manual or other related documents. Be careful not to install small parts such as screws, washers, pins, E-rings, star washers in the wrong places.

-Basically, the equipment should not be operated with any parts removed or disassembled.

-The PC board must be stored in an anti-electrostatic bag and handled carefully using a wristband since the ICs on it may be damaged due to static electricity.

Caution: Before using the wristband, unplug the power cable of the equipment and make sure that there are no charged objects which are not insulated in the vicinity.

-Avoid expose to laser beam during service. This equipment uses a laser diode. Be sure not to expose your eyes to the laser beam. Do not insert reflecting parts or tools such as a screwdriver on the laser beam path. Remove all reflecting metals such as watches, rings, etc. before starting service.

-Be sure not to touch high-temperature sections such as the exposure lamp, fuser unit, damp heater and areas around them.

-Be sure not to touch high-voltage sections such as the chargers, transfer belt, 2nd transfer roller, developer, high-voltage transformer, exposure lamp control inverter, inverter for the LCD back- light and power supply unit. Especially, the board of these components should not be touched since the electric charge may remain in the capacitors, etc. on them even after the power is turned OFF.

-Make sure that the equipment will not operate before touching potentially dangerous places (e.g. rotating/operating sections such as gears, belts pulleys, fans and laser beam exit of the laser optical unit).

-Be careful when removing the covers since there might be the parts with very sharp edges underneath.

-When servicing the equipment with the power turned ON, be sure not to touch live sections and rotating/operating sections. Avoid exposing your eyes to laser beam.

-Use designated jigs and tools.

-Use recommended measuring instruments or equivalents.

-Return the equipment to the original state and check the operation when the service is finished.

-Be very careful to treat the touch panel gently and never hit it. Breaking the surface could cause malfunctions.

3)Important Service Parts for Safety

-The breaker, door switch, fuse, thermostat, thermofuse, thermistor, IC-RAMs including lithium batteries, etc. are particularly important for safety. Be sure to handle/install them properly. If these parts are short-circuited and their functions become ineffective, they may result in fatal accidents such as burnout. Do not allow a short-circuit or do not use the parts not recommended by Toshiba TEC Corporation.

4)Cautionary Labels

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Contents GD-1210/1250/1270/1160/1260 Trademarks Transportation/Installation General Precautions at Service When the option has been installed VorsichtPage Contents Installation Explanation to the UsersFAX Options Models FAX unit 2nd line for FAX unitOriginal size SpecificationsFolio DBm to -8 dBm The setting can be changed by 1 dB Transmission systemEmbedded DBm to 0 dBm Level -55 dBm or lower cannot be detectedST-R Paper size Dimension width x length Printing areaComp Features 11/04 Accessories and Parts Following accessories and parts come with the FAX unitAccessory GD-1210 GD-1250 GD-1270 Parts GD-1210 GD-1250 GD-1270Extends the FAX functions when the FAX unit is installed OptionsOption Function STUDIO206L/256/306/356 Ments to be outputSystem List STUDIO2500c/3500c/3510cSTUDIO2330C/2820C/2830C/3520C/3530C/4520C NA/AU/EU/C/TWSTUDIO5520C/6520C/6530C STUDIO205L/255/305/355/455 Offset Tray MJ-5005STUDIO555/655/755/855 NA/EU-N/AU/CSTUDIO2040C/2540C/3040C/3540C/4540C Pedestal PFP Feeder LCF KD-1027/C KD-1028 A4/LT/CSTUDIO5540C/6540C/6550C STUDIO556/656/756/856 Saddle stitch Finisher MJ-1106/C STUDIO206L/256/306/356/456Inner Finisher MJ-1032 Saddle stitch MJ-1033 Overview LINE2 connector Line connector TEL connectorReversing automatic document feeder TEL connector Line connectorDrawers STUDIO5520C/6520C/6530C, e-STUDIO5540C/6540C/6550C Power switch TEL connector Line connector LINE2 connector STUDIO205L/255/305/355/455, e-STUDIO206L/256/306/356/456Power switch LINE2 connector Line connector TEL connector STUDIO555/655/755/855, e-STUDIO556/656/756/856Symbol Name Function Layout of PC BoardsFAX FAX PWR NCU MDM FAX FAX PWRRecording Mode LSU-RELATED FunctionsRecording paper selection algorithm Recording Paper Selection Algorithm and Printing AlgorithmPrinting algorithm ST against A3/B4/A4/LD/LT size originals respectively Discard function Length of B Discard parameter Set value Effective printing lengthOFF B4, A3 A4, B4 B5, B4 A5, A4 A5 , Comp LT, Comp COMP, LD LG/LT, LD ST, Folio B5, FolioSetting for the split recording Recording Paper and Function Others Table of the recording paper selection modesPriority Energy Saver Mode User FunctionsReceiving FAX document, or by Energy SaverMemory Reception Circuit Connection and Procedure to Change Mode Dial call-up transmission to a telephone circuitYES Standby stateSelection of the communication mode Procedure to select the transmission modeCommunication mode Toshiba original procedure Telephone circuitSignaling System Diagram and Signal Forms Circuit control signalsThis signal can be sent manually Signal form Signal name Signal formCommunication with the binary signals Image signal Mode change is possible only for the original set manuallyMode change possible Informing that there is the next ReceiverOnly error frame retransmitted 1 completed 2 completed Frames received Error occurredJOB Status button Cancel button CED NsfcsidisCFR MCFBinary signals PIP PINPRI-EOM PRI-MPSFCF FIF FCS When this frame is the last frame, X =Format FCF format of each binary signal Binary signal Format4800 bps, 2400 bps 9600 bps, 7200 bpsTCF 3 V.8/V.34 communication sequence Standard procedure Transmitter Receiver Line closedSignal name Abbreviation Function Remarks Tone signal between Hz and 3,750 Hz in units150 Hz Data transmissionTRN ALTFlag Maintains the synchroniza 7E H TionReceives an NSF sent from TransmitterImage data Image data are sent. Transmitter Scrambled data frame to beIs completed Encoded image data Turn off Scrambled 1 is sent forShort training Signal PPS-EOPTransmission of one Is completed Flag Informs to disconnect the lineLine closed DIS cannot be recognized Transmitter Receiver Transmitter Receiver DIALING/COMMUNICATION Control DIALING/COMMUNICATION Control FAX Automatic Switching TEL modeFAX mode General functionsConfiguration GD-1210 GD-1160GD-1250 / GD-1270 GD-1260 Configuration Description of CircuitsEU/AU/AS/C models Line path switching control circuit Signal Name Type Active Description DestinationCML1 ATT3DB1IC3 RLY3, IC3IC5 Line 1 Dial Pulse Generation Signal Q53 Dial pulse generation circuitLine 1 Dial Pulse Generation Signal Line Current Detection Signal IC29 IC26 Line Reverse Current Detection Signal IC29 IC26Line current detection circuit REVA1Line 1 Current Detection Signal IC29 IC26 Current Reverse Line 1 Current Detection IC29 IC26 SignalLine 1 CI Detect Signal IC29 IC26 CI detection circuitLine 1 CI Detection Signal IC29 IC26 Line monitor circuit NCU board Line1Monitoring signal Ringer/AlarmLine Monitor LOW HighRelation between the signals and sound volume is as follows Sound volumePC Boards PWA-F-FAX-631 GD-1210PWA-F-FAX-670 GD-1250/1270 08/04 08/04 PWA-F-MDM-563 GD-1160 PWA-F-MDM-671 GD-1260 PWA-F-FAX-POWER-631 GD-1210 Electrical Circuits Installation Explanation to the UsersInstallation
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