Toshiba Estudio 230 Manual

							June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTING
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8) Solid copy
 Fig. 5-8
Defective area Step Check items Prescription
Exposure lamp and  
inverter 1 Does the exposure lamp light? Check if the connecto
r contacts with 
the exposure lamp terminal.
Replace the defective inverter.
Scanner 2 Is there any foreign matter on the  light path? Remove it.
Bedewed scanner and 
drum 3 Is the scanner or drum bedewed? Clean the mirrors, 
lens and drum.
Keep the power cord plugged in all  
trough the day and night. 
(For the model with damp heater)
Main charger 4 Is the main charger securely  installed? Install it securely.
5 Is the needle electrode broken? Replace the needle e lectrode.
High-voltage transformer 
(Main charger) 6 Is the high-voltage transformer out-
put defective? Adjust the output, or replace the 
transformer.
7 Are the connectors of the high-volt- age harness securely connected? Is  
the harness open circuited? Reconnect the harness securely.  
Replace the high-voltage harness.
CCD, SLG, SYS, LGC
boards and harnesses 8 Are the connectors securely con-
nected? 
Check if the harnesses connecting  
the boards are open circuited. Connect the connectors securely. 
Replace the harness.
Feeding direction 
						

							e-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTINGJune 2004 © TOSHIBA TEC
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9) White banding (in the feeding direction)
 Fig. 5-9
Defective area Step Check items Prescription
Laser optical unit 1 Is there a foreign matter or sta in on 
the slit glass? Remove the foreign matter or stain.
Main charger grid 2 Is there a foreign matter or dew  on 
the charger grid? Remove the foreign matter.
Transfer charger wire 3 Is there any foreign matter o r stain on 
the transfer charger wire? Clean the transfer charger wire.
Developer unit 4 Is the developer material transporte d 
properly? Remove the foreign matter if there is  
any.
5 Is there a foreign matter or dew on  the drum seal? Remove the foreign matter or dew.
6 Is the upper drum seal of the devel- oper unit in contact with the drum? Correct the position of the drum seal  
or replace it.
Drum 7 Is there a foreign matter on the drum  surface? Replace the drum.
Transport path 8 Does the toner image contact with  any foreign matter before the paper 
enters the fusing section after the 
separation? Remove the foreign matter.
Discharge LED 9 Is any of the discharge LEDS off? Repl ace the discharge LED.
Scanner 10 Is there a foreign matter on the light  path? Remove the foreign matter.
11 Are the original glass (especially the  position of shading correction plate)  
mirror and lens dirty? Clean them.
Cleaner 12 Is there any foreign matter, which  contacts the drum on the cleaner 
stay? Remove the foreign matter.
Feeding direction  
						

							June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTING
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10)White banding (at right angle with the feeding d irection)
 Fig. 5-10
Defective area Step Check items Prescription
Main charger 1 Is there a foreign matter on the  charger? Remove the foreign matter.
2 Is the connector in proper contact  with the terminal? Clean or adjust the terminal.
Drum 3 Is there any abnormality on the drum  surface? Replace the drum.
Discharge LED 4 Does the discharge LED light nor- mally? Replace the discharge LED or check  
the harness and the circuit.
Developer unit 5 Is the developer sleeve rotating nor -
mally?
Is there any abnormality on the  
sleeve surface? Check the drive system of the devel- 
oper unit, or clean the sleeve sur- 
face.
Drive system 6 Are the drum and scanner jittering? Che ck each drive system.
High-voltage transformer
(Main charger / Developer
bias / Transfer charger) 7 Is the high-voltage transformer out-
put defective? Adjust the output, or replace the 
transformer.
Transfer charger 8 Is any foreign matter such as pape r 
shred sticking to the transfer charger 
wire? Remove the foreign matter from the  
wire.
Feed system 9 Is the aligning amount proper? Adjust th e aligning amount.
Feeding direction  
						

							e-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTINGJune 2004 © TOSHIBA TEC
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11)Skew (inclined image)
 Fig. 5-11
Defective area Step Check items Prescription
Drawers 
LCF 1 Is the drawer or LCF properly 
installed? Install the drawer or LCF properly.
2 Is there too much paper in the drawer  or LCF? Reduce paper to 550 sheets or less. 
(2500 sheets or less/stack for LCF)
3 Is the corner of the paper folded? Change the direc tion of the paper 
and set it again.
4 Are the side guides of the drawer or  LCF properly installed? Adjust the position of the side guides.
Feed roller 5 Is the surface of the feed roller dirty ? Clean the feed roller surface with 
alcohol, or replace the roller.
Rollers 6 Are the roller and shaft secured? Check and  tighten the E-rings, pins, 
clips and setscrews.
Registration roller 7 Is the spring detached from the  regis-
tration roller? Attach the spring correctly. Clean the  
roller if it is dirty.
Pre-registration guide 8 Is the pre-registration guid e properly 
installed? Correct it.
Carriage-1 9 Is the carriage-1 slanted? Adjust the car riage-1.
Feeding direction  
						

							June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTING
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12)Black banding (in the feeding direction)
 Fig. 5-12
Defective area Step Check items Prescription
Scanner 1 Is there a foreign matter on the light  path? Clean the slit, lens and mirrors.
Shading correction plate 2 Is there dust or stains on  part of the 
original glass where the shading cor- 
rection plate is placed. Clean the plate.
Main charger 3 Is there a foreign matter on the main  charger grid? Remove the foreign matter.
4 Is the main charger grid dirty or  deformed? Clean or replace the main charger  
grid.
5 Is there a foreign matter on the main  charger? Remove the foreign matter.
6 Is the needle electrode dirty or  deformed? Clean or replace the needle elec- 
trode.
7 Is there a foreign matter inside the  main charger case? Remove the foreign matter.
8 Is the inside of the main charger case  dirty? Clean the inside of the main charger  
case.
Cleaner 9 Is there paper dust sticking to the  drum cleaning blade edge? Clean or replace the cleaning blade.
10 Is the drum cleaning blade working  properly? Check the pressurization of the drum 
cleaning blade.
11 Has the used toner been recovered  properly? Clean the toner recovery auger.
Fuser unit 12 Is the fuser roller surface dirty or  damaged? Clean or replace the fuser roller.
13 Is the thermistor dirty? Clean the thermistor.
Drum 14 Are there scratches on the drum sur- face? Replace the drum.
Laser optical unit 15 Is there a foreign matter or st ain on 
the slit glass? Remove the foreign matter or the 
stain.
Feeding direction  
						

							e-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTINGJune 2004 © TOSHIBA TEC
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13)Black banding (at right angle with the feeding d irection)
 Fig. 5-13
Defective area Step Check items Prescription
Main charger 1 Is the needle electrode dirty or  deformed? Clean or replace the needle elec- 
trode.
Fuser unit 2 Are the fuser roller, separation finger  for fuser roller and thermistor dirty? Clean them.
3 Has the cleaning roller, pressure  roller, fuser roller and separation fin-
ger for fuser roller reached their PM  
life? Replace them.
High-voltage transformer
(Main charger / Developer 
bias / Transfer charger) 4 Is the high-voltage transformer out-
put defective? Adjust the output, or replace the  
transformer.
Drum 5 Is there a deep scratch on the drum  surface? Replace the drum if the scratch has 
reached the aluminum base.
6 Is there thin scratch (drum pitting) on  the drum surface? Check and adjust the contact condi-
tion of the cleaning blade and recov- 
ery blade.
Scanner 7 Is there a foreign matter on the car- riage rail? Remove the foreign matter.
Feeding direction  
						

							June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTING
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14)White spots
 Fig. 5-14
Defective area Step Check items Prescription
Developer unit,  
Toner cartridge 1 Is the toner density in the developer 
material appropriate? Check and correct the auto-toner 
sensor and toner supply operation.
Check if the amount of the toner is  
sufficient in the toner cartridge.
2 Is the doctor-sleeve gap proper? Adjust the doctor- sleeve gap.
Developer material, Toner,  
Drum 3 Using the specified developer mate-
rial, toner and drum? Use the specified developer material, 
toner and drum.
4 Have the developer material and  drum reached their PM life? Replace the developer material and 
drum.
5 Is the storage environment of the  toner cartridge 35°c or less without  
dew? Use the toner cartridge stored in the  
environment with specification.
6 Is there any dent on the drum sur- face? Replace the drum.
7 Is there any film forming on the  drum? Clean or replace the drum.
Main charger 8 Is there any foreign matter on the  charger? Remove it.
9 Is the needle electrode dirty or  deformed? Clean or replace the needle elec-
trode.
High-voltage transformer 
(Main charger / Developer 
bias / Transfer charger) 10 Is the high-voltage transformer out-
put defective? Adjust the output, or replace the  
transformer.
Transfer/Separation 
charger 11 Is there any foreign matter such as 
fiber in the paper transport area of  
the transfer/separation charger? Clean the transfer/separation 
charger.
Feeding direction  
						

							e-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTINGJune 2004 © TOSHIBA TEC
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15)Poor image transfer
 Fig. 5-15
Defective area Step Check items Prescription
Paper 1 Is the paper in the drawer or LCF/ PFP curled? Reinsert the paper with the reverse  
side up or change the paper.
2 Is the paper in the drawer or LCF  damp? Avoid storing paper in damp place.
3 Is the paper type corresponding to its  mode? Select the proper mode.
4 Using the recommended paper? Use the recommended pa per.
Transfer charger 5 Is the transfer charger case dirty ? Clean the transfer charger case.
6 Is the transfer charger wire dirty? Clean the trans fer charger wire.
Registration roller 7 Is there any abnormality relate d to 
the registration roller or with the roller 
itself? Clean the roller if it is dirty. Securely  
attach the springs if they are  
detached. Replace the clutch if it is 
defective. Adjust the rotation speed  
of the roller.
High-voltage transformer 
(Transfer charger) 8 Is the high-voltage transformer out-
put defective? Adjust the output, or replace the 
transformer.
Feeding direction  
						

							June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTING
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5
16)Uneven image density
 Fig. 5-16
Defective area Step Check items Prescription
Main charger 1 Is the main charger dirty? Clean or rep lace the needle elec-
trode and main charger grid.
Transfer charger 2 Is the transfer charger dirty? Clea n the transfer charger.
3 Is the transfer charger wire dirty? Clean the trans fer charger wire.
Laser optical unit 4 Is there any foreign matter or s tain on 
the slit glass? Remove the foreign matter or stain.
Discharge LED 5 Are the connectors of discharge LED  harness securely connected? Reconnect the harness securely.
6 Is the discharge LED dirty? Clean the discharge LED .
7 Is any of the discharge LEDs off? Replace the discha rge LED.
Developer unit 8 Is the magnetic brush in proper con- tact with the drum? Adjust the doctor-sleeve gap.
9 Is the developer sleeve pressuriza- tion mechanism working? Check the mechanism.
10 Is the developer material transported  normally? Remove foreign matters if there is  
any.
Scanner section 11 Is the platen cover or RADF opened ? Close the platen cover or RADF.
12 Are the original glass (especially the  position of shading correction plate), 
mirror and lens dirty? Clean them.
Feeding direction  
						

							e-STUDIO200L/202L/230/232/280/282 TROUBLESHOOTINGJune 2004 © TOSHIBA TEC
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17)Faded image (low density, abnormal gray balance)
 Fig. 5-17
Defective area Step Check items Prescription
Toner empty 1 Is “ADD TONER” symbol lit? Replace the to ner cartridge.
Auto-toner circuit 2 Is there enough toner in the car -
tridge? Check the performance of the auto- 
toner circuit.
3 Is the toner density in the developer  material too low?
Toner motor 4 Is the toner motor working normally? Che ck the toner motor and the motor 
drive.
Toner cartridge 5 Is there any problem with the toner  
cartridge? Replace the toner cartridge.
Developer material 6 Has the developer material reach ed 
its PM life? Replace the developer material.
Developer unit 7 Is the magnetic brush in proper con- tact with the drum? Check the installation of the devel- 
oper unit. 
Adjust the doctor-sleeve gap and  
polarity.
8 Is the developer sleeve pressuriza- tion mechanism working? Check the mechanism.
Main charger 9 Is the main charger dirty? Clean it or  replace the needle elec-
trode and main charger grid.
Drum 10 Is “film-forming” occurring on the  drum surface? Clean or replace the drum.
11 Has the drum reached its PM life? Replace the drum.
Transfer charger 12 Is the transfer charger wire cut  off? Replace the transfer charger wire.
High-voltage transformer 13 Is the setting for the hi gh-voltage 
transformer proper? Adjust the output from the high-volt- 
age transformer.
14 Are the connectors of the high-volt- age harness securely connected? Is  
the harness open circuited? Reconnect the harness securely.  
Replace the high-voltage harness.
Discharge LED 15 Are the connectors of discharge LED  harness securely connected? Reconnect the harness securely.
Feeding direction