Toshiba e-Studio 205L

9 White banding or white void(in the feeding direction)

 

Defective area	Step	Check items	Prescription
Laser optical unit	1	Is there a foreign matter or stain 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.
Toner cartridge	3	Is the adhered foreign matter blocking the laser light path?	Remove the foreign matter.
Developer unit	4	Is the floated lid of the developer bottle blocking the laser light path?	Check the lid and place it properly.
	5	Is the developer material transported properly?	Remove the foreign matter if there is any. *1)
	6	Is there a foreign matter or dew on the drum seal?	Remove the foreign matter or dew.
	7	Is the upper drum seal of the developer unit in contact with the drum?	Correct the position of the drum seal or replace it.
Drum	8	Is there a foreign matter on the drum surface?	Replace the drum. If there is a convex foreign matter adhering to the drum surface, it indicates that the blade edge at this area is worn out. In this case, replace both the drum and the drum cleaning blade.
Transport path	9	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	10	Is any of the discharge LEDS off?	Replace the discharge LED.
Scanner	11	Is there a foreign matter on the light path?	Remove the foreign matter.
	12	Are the original glass (especially the position of shading correction plate) mirror and lens dirty?	Clean them.
Cleaner	13	Is there any foreign matter, which contacts the drum on the cleaner stay?	Remove the foreign matter.

*1) Prescription for foreign matter in the doctor sleeve gap

• Pull the doctor blade in the direction of the arrow.
• Rotate the gear.
• Remove the foreign matter that has come out on the developer sleeve.

10 White banding (at right angle with the feeding direction)

 

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 normally?	Replace the discharge LED or check the harness and the circuit.
Developer unit	5	Is the developer sleeve rotating normally? Is there any abnormality on the sleeve surface?	Check the drive system of the developer unit, or clean the sleeve surface.
Drive system	6	Are the drum and scanner jittering?	Check each drive system.
High-voltage transformer (Main charger / Developer bias / Transfer roller unit)	7	Is the high-voltage transformer output defective?	Adjust the output, or replace the transformer.
Transfer roller unit	8	Is there any foreign matter adhering to the transfer roller? Is there any abnormality in the appearance of the roller? Has the number of output pages exceeded the threshold for the life of the transfer roller?	Remove the foreign matter from the roller surface. Replace the roller if there is any abnormality in its appearance. Also replace the roller if the number of output pages has exceeded the threshold of its life.
Feed system	9	Is the aligning amount proper?	Adjust the aligning amount.