Cause/Defect area | Toshiba FC-22 instruction

(19) Faded image (low density, color reproduction defect, gray balance defect)

Feeding direction

Cause/Defect area	Step	Check items	Measures
Toner empty	1	“ADD TONER” symbol flashing?	Replace toner cartridge.
Auto-toner circuit	2	Enough toner in cartridge?	Check auto-toner circuit function.
	3	Toner density in developer material too
		low?
Toner motor	4	Toner motor malfunctioning?	Check motor drive circuit.
Toner cartridge	5	Any abnormalities in toner cartridge?	Replace toner cartridge.
Developer material	6	Developer material life ended?	Replace developer material.
Developer unit	7	Magnetic brush in proper contact with	Check developer unit installation.
		drum?	Adjust doctor-sleeve gap and pole position.
Main charger	8	Main charger dirty?	Clean it or replace charger wire.
Drum	9	Film formed on drum surface?	Clean or replace drum.
High-voltage transformer	10	High-voltage transformer settings im-	Adjust high-voltage transformer output.
		proper?

January 2000 © TOSHIBA TEC

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FC-22 TROUBLESHOOTING

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Toshiba FC-22 manual Cause/Defect area

Contents

Main Service Parts for Safety Service of Machines Vorsicht Disposition of Consumable Parts/Packing MaterialsEntsorgung des gebrauchten RAM-ICs inklusive Der Lithium-Batterie nach Angaben des Herstellers Adjustment Items Preventive Maintenance PM Contents Firmware Updating Troubleshooting Based on Error Code Appendix Restart time out error Error Code List Original jam in the ADF Scanner related service callOriginal not reaching the aligning sensor Original not reaching the exit sensor C3F Error of aligning sensor automatic adjustment ADF related service callEeprom initializing error Error of paper exit sensor automatic adjustment Transport motor rotation abnormal Automatic adjustment error of bin inside paper sensorBin shift motor rotation abnormal Guide bar swing motor rotation abnormal F11 Unused 99 08 26 17 57 236210000000 Error code Self Diagnostic Mode Transition diagram of self-diagnostic mode conditions Input check Test mode ADU side switch A3/LD Full COLORkey OFF, Auto COLORkey OFF, Energy SAVERkey on Full COLORkey OFF, Auto COLORkey ON, Energy SAVERkey OFF Full COLORkey OFF, Auto COLORkey ON, Energy SAVERkey on Full COLORkey ON, Auto COLORkey OFF, Energy SAVERkey OFF Operation procedure Output check Test mode ON/OFF Carriage fan motor rotation when running high speed ON/OFF Carriage fan motor rotation when standby low speed ON/OFFDocument motor indicator 1 reciprocating SCM fan motor rotation speed Low/High Operation procedure Group Pixel modulation pattern for creating γ table Test print modePixel modulation pattern 1 for selecting pulse width Pixel modulation pattern 2 for selecting pulse width Adjustment mode Group 318 OHP modeFull color ~255 Fine adjustment of drum motor rotation speed Fine adjustment of fuser motor rotation speedFine adjustment of feed motor rotation speed 390 Thick paper 3 mode Thick paper 2 modeColor registration sensor error Or 16 or above Normal Right margin Default 9 68 msec Write start position adjust 2nd cassetteModulation mode switching, type a Modulation mode switching, type B Color mode black text γ curve set selection Density adjustment density curve selectionMonochrome mode black text γ curve set Monitor patch output ON/OFF switching Center setting Printed image Fine adjustment TextDarker setting Printed image Manual density Full color Text/Photo Sity fine adjust Text Lighter setting Printed imageMade at the light side become Lighter For ID Full color non-text area Y Total hue adjustmentFor ID Full color non-text area M For ID Full color non-text area C Total saturation adjustment Total luminance adjustmentTend to be judged as color Auto-color mode Adjustment Macro recognition Pre-process text threshold Adjustment AI mode setting Time-out settingMacro recognition Pre-process shading Threshold adjustment Adjustment Map When the value increases, the im Micro recognition Text emphasis adjustmentDefault is equivalent to Micro recognition Logo text inside threshold Fixed black ratio adjustment, type B Fixed black ratio adjustment, type aFixed black ratio adjustment, type C Fixed black ratio adjustment, type D Monochrome mode, black text γ adjustment Color mode, black text γ adjustment~255 Mode become denser Color balance High density Color balance Text/Photo Low densityText Low density Photo Low density Output value indica When the light source Power Cancel Clear Procedure Group Energy Saver Start Following items can be set or changed in this mode Setting mode Is disabled Timer for Print job start up time Set number SecondsAll clearing by key copy counter Disabled 1Enabled Removal Original Radf 269 Image quality control auto-start Disabled Enabled When 1 is set, a paper source becomesStart count setting of developer Paper source priority A4/LT Secondary scanning 100% 1 101% Reproduction ratio adjustment Function clearing immediately Invalid 1 Valid After copying Radf priority mode Continuous feeding by Start keyImage repeat gap Invalid Other than All clearing of image processing Adjustment values Power shutoff Low powerAll clearing of pulse width Selection adjustment results All clearing of γ correction Table adjustment results Full-color print counter Copier Refer to Counter function and maintenance chacke listDisplay of counter value Code 08-802 is Reflected Black print counter Copier Radf original counter Drum C life counter display/0 Refer to Counter function and maintenance check list Does not start 1 Starts 906Available during MFP Invalid Valid System mode display Registering/changing ID codes Procedure for registering ID codes Correcting ID code Adjustment Order Copy Image Related Adjustment 100% AA3 Automatic Adjustment of the Auto-Toner Circuit Wait Remove the developer cartridges Install the toner cartridges 03-113 ON, 03-163 OFF Replace disabled partsCheck if the developer cartridge gears rotate properly Replace EPU Automatic Initialization of Image Quality Control Copy Image Dimensional Adjustment XXX Long size 439 441 443 445 Short size 440 442 444 446 Which occurs when the paper scrapes on447 448 449 Feed motor speed adjustment Printer related adjustment FC-22 Adjustment Grid pattern Step Scanner related adjustment Application area Carriage frame Mirror Application Method of the Adhesive for Screw Locking Image skewing adjustment FC-22 Adjustment LCF FC-22 Adjustment Adjustment order Chart TCC-1 Toshiba Color Chart Shown. Press Start to have the adjustment results reflected Place the Patch chart for gamma adjustment produced in stepTransfer belt Input 2 with digital keys, and press Start and then Inter FC-22 Adjustment 550 551 RemarksManual-density Full Dark step value Dark side becomes 570 571 Photo Map Remarks Adjusted Copy mode Item to beAcceptable values 0 to 255 Color 698 699 Copy mode Item to be adjusted Remarks702 Offset value for Background Background becomes Judgment Threshold for ACS AI Mode Setting AI photo area Have to make adjustment by compromising Code Color mode Copy mode ContentAI text area Image becomes AI photo area Smaller the value, the less moire tends to High-Voltage Transformer Settings Settings after replacing main high-voltage transformersOverview Settings after replacing transfer transformer Adjusting Doctor-to-Sleeve Gap Adjusting the Carriages Adjusting the Scanner Section Installing the carriage drive wires to the wire pulleys Relationship between wound turns and wire holder jigs Lens Unit Loosen 2 screws for fixing the lens unit Marking Adjustment Direction FC-22 Adjustment Adjusting the Cassette for Sidewise Deviation Key Copy Counter MU-8, MU-10 08 setting mode, enter 3 under code Types of Preventive Maintenance Preventive Maintenance PM Preventive Maintenance Checklist Symbols used in the checklist For FC-22Symbols used in the checklist For FC-15 General Maintenance Checklist FC-22 TBU Original glass Z60or a Platen cover Mirror Color Maintenance Checklist FC-22 General Maintenance Checklist FC-15 Image quality sensor’s area Z40 Color Maintenance Checklist FC-15 Front sectional view 53 52 51 54 56 57 Processing unit EPU Front-side drive system Such as screws on the table Developer material FC-22 Preventive Maintenance SR-FC22H PM Kit 20K kit Page List of Adjustment Tools Test chart No. TCC-1Scanner carriage jig Checking and Cleaning of the Photoconductive Drum Precautions for Storing Toshiba Supplies FC-22 Supplies Checking and Cleaning of the Fuser Rollers Checking and Replacing the Transfer Roller Checking and Replacing the Transfer Belt Reconnect the connector. Replace the harness Troubleshooting Based on Error CodeIs the fuser motor rotating? Disconnected? E03 Paper remaining inside the copier at power on E12 Paper misfeed from the bypass Paper feeding jam E11 Paper misfeed from the ADU E19 Paper misfeed from the LCF Replace the cassette-feed jam sensor Replace the LGC board Reconnect the connector. Replace the harness Close the front cover or the paper exit unit Cover open jam E41 Front cover opened during copyingE42 Side door opened during copying Is the side door open? Is the LCF jam access cover open? E45 LCF jam access cover opened during copyingClose the LCF jam access cover E43 ADU unit pulled out during copying E46 Bypass unit opened during copying Is the bypass unit open?Close the bypass unit E52 Paper not reaching the ADU path sensor Have too many originals been placed? Original stops, skewed on the original glass Original does not reach the aligning roller Paper transport stop jam Paper jam in the sorter EA1 Paper transport delay jam Paper remaining on the sorter transport path at power on EA4 Sorter front door opened during copyingIs the stapler unit cover securely closed? Staple jam EA5 EC3 OHP sheet used in non-OHP mode Is the ADU motor rotating properly? Is the black developer motor rotating properly? C09 Black developer motor rotation abnormal Is the color developer motor rotating properly? C0A Color developer motor rotation abnormal Drum motor C rotation abnormal Drum motor K rotation abnormalDrum motor M rotation abnormal Drum motor Y rotation abnormal C12 ADU paper end guide function abnormal Put the belt on properly Replace the gear C18 LCF tray function abnormal Do the switches and sensors in the LCF unit function? C28 C29 Exposure lamp disconnection detected Is used toner jammed? Is any abnormal mechanical load found? Replace the harness. Reconnect the connectors C35 Transfer belt unit contact/release function abnormal C33 Developer removal shutter function abnormal C37 Transfer belt motor rotation abnormal Replace the auto toner sensor Replace the LGC board C38 C39 Reconnect the wire cleaner home position switch Reinstall the main chargerReconnect the wire cleaner limit switch Securely C42 Thermistor abnormal after the copier becomes ready FC-22 Troubleshooting C48 Heater abnormal high temperature Error C7C41 FC-22 Troubleshooting FC-22 Troubleshooting FC-22 Troubleshooting C74 Error of exit sensor automatic adjustment C73 Eeprom initializing error Observe the condition for a while Other service calls C94 Main-CPU abnormalC9A Main memory abnormal C9E IMC board connection abnormal Replace the laser optical unit Is the polygonal motor rotating? CA2 H-SYNC abnormal Transport motor rotation abnormal Sorter related service call Bin-shift motor rotation abnormal CC3 Stapler-unit swing motor rotation abnormal Guide bar swing motor rotation abnormal CCA Automatic adjustment error of bin inside paper sensor Press the circuit breaker No power being suppliedIs the fuse blown out? Replace the fuse Image quality sensor abnormal OFF level Image quality related service call Image quality sensor no pattern level CE2 CE4 Image quality control test pattern abnormal CF1 Color registration control abnormal CE5 Temperature/humidity sensor upper-limit abnormal FC-22 Troubleshooting FC-22 Troubleshooting FC-22 Troubleshooting F11 Communications error between System-CPU and Scanner-CPU FC-22 Troubleshooting Color deviation Symptoms Troubleshooting of Image Few steps at a time Uneven pitch and blur Symptoms FC-22 Troubleshooting FC-22 Troubleshooting Defect of image density, color reproduction and gray balance Background Fogging Lack of sharpness Moire/lack of sharpness Toner offset Feeding direction Vents because they have bad effect on drum Fuser roller pressure defect Check/correct developer sleeve coupling engaging Solid copy Feeding direction White banding in feeding direction directionFeeding Check/correct related circuits LCF Skew slantwise copying Feeding direction Color banding in feeding direction Feeding direction FC-22 Troubleshooting Cause/Defect area Step Check items Measures Developer unit White spots Feeding direaction Poor image transfer Feeding direction Uneven image density Feeding direction Cause/Defect area Image dislocation in feeding direction Feeding direction Image jittering Feeding direction Oil roller Life ended? Fuser roller Poor cleaning Feeding direction Uneven light distribution Feeding direction Blotched image Feeding direction 3 9 Mode Operation OutlinePreparation of PC \WEBSHARE\FTPROOT FC-22 Firmware Updating Firmware update operation One of the followings SJP, SEU, SUC, SX SJP Case of #1 #3 Case of 1 Case of #1 #3 Following screen is displayed after finished Error Message Further procedure is the same as normal sequence Screen details Following screen will be displayed in 3 9 mode Press Start Key ’ Press Start Key Case of #1- #3 Error Occurrence Area Power OFF System configuration Installation Instructions for Firmware Update through PC Preparation of PC to use a network FC-22 Firmware Updating FC-22 Firmware Updating FC-22 Firmware Updating FC-22 Firmware Updating FC-22 Firmware Updating FC-22 Firmware Updating FC-22 Firmware Updating FC-22 Firmware Updating FC-22 Firmware Updating Installation of FTP server FC-22 Firmware Updating FC-22 Firmware Updating FC-22 Firmware Updating FC-22 Firmware Updating AC Wire Harness Wire Harness Connection Diagrams DC Wire Harness January 20000 Toshiba TEC