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Does your printer have a takeup unit? The last issue you described usually occur when the takeup unit is not properly aligned to the printer, this is because the media tends to feed more on one side than the other. In my experience, vertical banding is oftentimes profile related. Using ideal...

You need to perform Head Slant, Uni-D and Bi-D print adjustments

Make sure your cartridges have enough ink on them, check that there is a good seal between the printhead and the capping unit, ensure that your dampers are not clogged up.

Have a look at the website below, their products work for us http://www.stopstatic.com/

The printhead would still print even if the correct voltage is not entered but it may not produce optimum print quality. On Mutoh Valuejet printers, there are 2 voltage values in the printhead parameter (head rank) that determine the size, shape, & position of the satellite dots relative to...

Yes, it not really cleaning if there is no ink coming out of the waste ink tubes. There could an air leak somewhere between the cap assembly and the printhead. Also check the maintenance unit for clogged / damaged waste ink tubes.

What printer model? Does it have a take up unit? Try printing on a cut sheet and see if the same problem occurs.

Water based printer mainboard to be used on a solvent printer? You will need to load the correct firmware and the original printer parameters to this mainboard, not as simple as it seems.

You can temporarily remove the head lock mechanism if you believe this is the cause of the problem. If it is bent, the carriage must have hit it at some stage. Straighten it then upgrade the printer's firmware to the latest revision (Ver1.05), this version has an updated head lock solenoid...

You can try this, loosen the 4 grub screws on the coupling holding the 2 shafts together, see if you can move the short shaft as required. Without personally looking at your printer, this is the only advice I can offer for now. Maybe it is about time to get a Mutoh technician to come in and...

Could be blown fuses on mainboard or the mainboard itself, also CR Cables, Head Driver Board, or CR Sub Board.

Follow the instructions on that Technical Bulletin, loosen the 2 screws fixing the pulley to the shaft then slide the pulley assembly to the right until the disc lightly touches the right hand side guide pin. Tighten the 2 screws bit by bit if you do not have the torque screw driver, as you do...

Hi Randy, Your techs are very lucky to have a very knowledgeable and proactive boss like yourself who is always on top of issues like these, I feel jealous, lol!

The info I posted previously is based on a document I downloaded from the Mutoh Belgium website. I just had a look at our ValueJets (VJ-1618, VJ-1608, VJ-1614 & VJ-1618W, all assembled in Japan), 2 have the encoder disc lightly touching the outer guide pin just like yours, one has the encoder...

If inexplicable PF encoder errors occur on a VJ-16xx printer, there is a modification available to make the printer less sensitive to this problem. The modification consists of the placing of an extra ring into the pulley. By placing this ring, you avoid a situation where the pulley can get...

Please have a look at the attached photos. Does your printer have the white plastic spacer between the encoder pulley and the steel shaft? Is the coupling between the short shaft and main grit roller rigid or flexible type?

Have you done a headwash cycle? If you have and had no joy, try soaking the head in wash solution, you can do this by doing the following: 1) manually move the carriage away from the capping assembly 2) squirt wash solution into the cap unit until it is about to overflow 3) quickly return...

It is most likely that the short shaft driven by the motor is not perfectly aligned with the main media feed roller so that there is a tight spot on each revolution of that roller. On the old Mutoh Rockhoppers, the coupling between these 2 parts was flexible so alignment was not very critical...

The latest VJ-1204 firmware on the Mutoh Japan website is Version 1.18

Observe one your ink cartridges, see the cut out on the bottom of the right side towards the front, imagine where this cavity is positioned when the cartridge is inserted on the printer. That is where the ink out sensor is. On a cartridge that has ink, the plastic tab will be inside this...