Drum unit no MK 438..which machine is compatible

hi

find link for solution

https://www.youtube.com/watch?v=Dco3csuDDkQ

Vertical lines? How many pages have you printed? Check the counter and then answer to my post. Maybe you will need to replace the MK. Check the surface of optical cylinder for scratches. However, if the MK is not at the end of his life, and the cylinder surface is not damaged, you will need to clean the charge roller and then to execute an Drum Refresh from Service submenu. This is the most frecvent problem that I meet, related to vertical lines. There could be other bad components, but you will need to check first the drum unit.

The DR-550 MkII is the upgraded version of the venerable, original DR-550. ... Also, as in other drum machines in the DR-series, you can chain patterns to forms songs - In the DR-550 MkII, up to 8 songs ... Boss DR-550 Mk II manual. Available ... www.synthmania.com/dr-550mkii.htm
Just checked this site. I am sure this manual is the one you want

> without buying a Maintenance Kit ?

Either you buy the kit, or you sell the printer "as is" on eBay, after buying a new printer.

Ink, Toner & Accessories for DP-85F Printers, Copiers & Faxes Select from the list below Compatible or Original ink and toner cartridges that work with your DP-85F.
TOSHIBA TK-18 Compatible Black Laser Cartridge, TK-18

• - Condition: Compatible
• - Page Yield: 6000
• - Color: Black

• - Printer Technology: Laser Cartridge
• - Item Number: TK18-70

- OEM Part#: TK-18, TK18

Item #: TK18-70

MSRP: $114.99

Price: $38.99
Toshiba DK-18 DP-80/DP-85 Drum Unit

• - Condition: Compatible
• - Page Yield: 20000
• - Color: Black

• - Printer Technology: Drum Unit
• - Item Number: DK18-70

- OEM Part#: DK18, DK-18

Item #: DK18-70

MSRP: $114.99

Price: $39.99


Toshiba DP85F Toner Cartridge, Black
Toshiba TK18 Toner Cartridge, Toshiba TK-18 Fax Toner
$73.59

If you send a print job or print a report from the copier and there is no streaks then the problem is most likely the thin **** glass to the left of the large glass. It just needs to be claened.

If the streaks are happening when printing and copying then the problem is most likely your drum unit (MK-410) or possibly the fixing unit (FU-410), the fixing unit is the one that gets hot.

As the drum gets old it can cause print/copy issues and the cleaning blade that cleans the drum gets to the point it doesn't clean the drum properly causing streaks.

The heat roller has a teflon coating on it and as the roller gets older the teflon starts to come off and can effect prints/copies.

The drum unit should be replaced every 150,000 pages and the fixing unit every 300,000 pages on the KM-2050.

I hope this is helpful,
Shawn

HELLO

Have a look at Originlive on the net. They do an armboard which should fit your turntable easily and enable to put a Rega RB250 or RB300 arm on your machine - it will improve audio quality too!

install MK means replace the maintains kit . maintains kit is belongs to drum ,developer , drive gears ..... after 250000 print it asking to replace all the things ....... this is not harmful the printer it will work fine don't worry about the install mk....

the DK message means it is time to replace the black drum unit. the drum unit is called an ARC26DU. open the front cover. remove the toner cartridge/s by lifting the green lever and pulling the toner out. Open the left side door. look at where you just pulled out the toner and there is one screw (facing you) holding each drum in place - loosen the screw and pull the drum unit out towards you....slide in the new drum unit.
to reset drum counter go into SIM mode by pressing the following keys one after the other "P" "*" "C" "*" then 24 and start/copy key then 7 then select the color drum you are replacing and confirm reset. make sure copier restarts afterwards

DO NOT refill these toner cartridges (even if you can find someone to do it) The toner cartridges for these machines have generally had ongoing problems as far as longevity and quality - refilling them will only make it worse.

Machine maintenance(400,000 printed pages) Content of MK : Fuser assembly,Developer assembly,Drum assemby, various feed and other rollers,transfer assembly etc...

BR