Has anyone had a problem with the mx-3610 not holding its color calibration?Ive done the latest firmware,Have the customer self calibrated.But in a 100 prints it seems to change shades .If it has a backround on the print either it goes to light or too dark.Calibrated it you can run 25 and it changes again.Only 35k on machine, no codes.But it seems to be the color yellow that it has issues with.Customer is pissed .Help please!
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Re: Sharp mx-3610
Try running SIM 63-8 and SIM 67-28 after full calibration.
Failing to plan is planning to fail!!! -
Re: Sharp mx-3610
First of all, I hope you understand that this model is NOT a color matching machine and no matter what is adjusted or changed on the machine, you will always get some variation in toner density during operation due to it being a dual component machine. I hope the machine was not sold with the promise of perfect continuous color, because you will never get that. Even though the specifications are fantastic, such as 9600dpi equivalent (with the smoothing function activated), its still a commercial photocopier, not a graphics printer.
That being said, there is many things you can adjust to help minimise the amount of toner density change during operation. The amount of change will still depend on toner coverage per page, and how frequent the jobs are (long continuous jobs vs stop-start printing of smaller pages).
With the very latest firmware versions, the addition of sim 44-62 in this series of machine is no longer active. This sim was added to the latest series MX machines to enable you to change the frequency of process control timing, by either setting it as normal or high quality 1 or high quality 2. The higher you set this option, the more frequent that the machine performed process control, therefore helping to balance the change in toner density & keep a more stable level of toner. The last 2 versions of firmware have made this sim redundant. You can still get around this by changing 44-28. By default, the PIX function is off. Change this to ON. By default the MX machines will only do a process control sequence either a certain amount of pages, after a reset, after a significant temp/humidity change or after at least 2 hours of sitting idle. Therefore, if you are printing a set of pages with a significant toner coverage, the machine will not run a process control as frequently as you need to help stabilise the toner density. Basically, more toner is going out onto the pages, than is going in to the dev from the toner cartridge, so obviously the toner density on your pages will change as the job progresses.
If you change the PIX function to ON (or YES depending on the model), you are forcing the machine to now run a process control sequence after it uses a set amount of pixels counted by the LSU. The more pixels counted, the more toner used, therefore the machine now needs to run an adjustment more frequently. There is a number for PIX below that, further down the 44-28 adjustment list. Depending on the model, whatever that number is..... halve it and press OK. This will force the machine to not only run a process control sequence after a set amount of pages, but now also run a process control after using a smaller amount of toner, rather than run itself low and change the density too much to notice. You will still get some variation, but nowhere near as much. The machine performance speed also drops a little bit, due to it now pausing midway through the job & running internal adjustments, but that's the price you have to pay.
You also need to correctly set the machine up. After changing developers, it is vital on those machines to run 44-27 immediately after finishing the dev adjust 25-02. This clears the previous HV compensation for dev & grid bias to help maintain a better image density level. If this sim is not run, too much toner density changes can be seen immediately before & after process control. Basically, the swing between a good & bad level is way to much to notice.
You also need to run the ID/Calibration sensor calibration with the standard MX calibration jig in sim 44-13. This sets a more accurate level of reference when the machine is running its calibrations, and you will always get far more consistent grayscale & halftones if this is setup correctly. Its the same calibration jig that fits all MX machines.
After running the 2 simulations mentioned by Mojorolla, run a full color calibration of 46-74.
With all of that being done, the machine will definitely hold a more stable level of toner density, but you really need to be aware (as does your customer) that this is NOT a machine capable of perfect toner density over a print run. There will always be a variation in density on the pages. The above changes will definitely help reduce how much its noticed. Dual component machines will always have this.
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1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
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Re: Sharp mx-3610
What Blackcat said.
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