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How do I calibrate copy density on Konica 1290re copier. All copies come out way too light regardless of density setting. Toner cartridge is new and correct oem cartridge. PDF Service manual would be a big help.

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Even after replacing the toner cartridge the toner light remains on and the copier will not operate. I have tried agitating the cartridge with no effect. Occasionally on switching on it will operate for a...


Hi Paul

Please answer me a few questions and Ill look into your issue when I get some time later today

Are you using Sharp original toner or after market?

Is the light the "billard ball" one and is it on solid or blinking

Is the drum light on also?

What is the page count on this machine

"clear, density select, clear, density select, dilpay blinks 00 then use arrows for up, zoom for down, to put in 22, press copy then arrow in 05, press copy.. result will be 3x 2 digits repeaed, clear to exit to start of service mode

what is the drum count?, same as above but 12 instead of 05 for second lot of entry

TRy doing clear density, clear density, then 10 copy, can you hear toner motor turning for 30secs?

Dont play in service mode you can damage machine if wrong stuff is put in;)


(clear then clear again to exit all the way out of service mode)

Please post back results/answers

Cheers

Soulvisitor

Oct 10, 2011 | Sharp AL-1217 Copier

1 Answer

Installed a new cartridge and copies are bad. Lots of black on copies. Cannot figure out how to change density of copies.


Is it the density or is the problem the transfer roller.....If its the density go into the menus and select print quality and scroll down to the density and lower the setting. If its the transfer roller, you'll need a new one. Make sure the plastic is all removed from the toner...it sounds like you might have left the plastic strip on the toner.

Oct 19, 2010 | HP LaserJet 2300dn Printer

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I own a Sharp Al-1655CS about 2 yrs old, I have a problem, the balck toner powder is exiting the back of the machine and copies are very light. The copy count shows 12,000 copies made. I have repalced the...


These are very good machines so I would see no reason to replace it. Do you have the operators manual? If so look up the setting for "toner save mode" and make sure it is NOT turned on.
The drum unit is good for at least 18,000 pages so I would not suspect the drum. I even reset the counters on the drum units and can get up to 36,000 pages on them. Do you have the machine hooked to a PC for printing? If so is there any difference between printer density and copy density? If so then the issue is with the scanner density setting. If the copy and prints are both light then it is a print engine problem. If several toner cartridges are doing the same light print then I would suspect that your laser scanner optics are dirty. There is a narrow strip or slot just above the drum unit that the laser beam goes thru to write the image onto the drum. This should be cleaned and then the machine re-tested. If no improvement is see then the machine will have to be dis-assembled and cleaned which would require a compentant service technician.
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1 Answer

Minolta copier 1030, changed toner makes no copies


take the toner bottle out. turn off the machine then turn it on with the bottle out. once the machine, ask for toner install the bottle.

Jun 18, 2009 | Konica Minolta Office Equipment & Supplies

2 Answers

Konica 7020


F26-1 at power up. [Description] F26-1 at power up.
[Solution]
PROBABLE CAUSES:
1. The TDS (Toner Density Sensor), in the developing unit, has detected a depletion of toner.
Note: This may have been caused by the customer making an excessive amount of copies while the machine was out of toner. It may also be caused by a bound toner addition system.
Clean all toner from the toner recycle and toner supply assemblies. Confirm that the gear mesh between the toner supply auger drive gear and toner supply motor (M4) is flush. If toner supply conveyance is normal and the toner cavity is empty, install a new toner cartridge (Item #950236) and then perform the following diagnostic mode to replenish the developing unit with toner:
a. Access the 47 mode (power the copier ON while pressing the 4 and 7 keys).
b. Enter output code 54.
c. Press the START button.
Note: Toner will now be added to the developing unit and stop automatically when target level is reached, although it will not run any longer than 3 minutes.
d. Power copier OFF/ON to return to normal copy mode.
Note: Perform the following 25 mode software switch settings to minimize the amount of copies that can be made, prior to copy inhibit, when the ADD TONER message is displayed:
- Access the 25 mode (hold down the 2 and 5 keys at power ON).
- Select [1] (SOFTWARE SW).
- Using the up and down arrows, scroll to the following software switches and set them as follows:
a. 4-0 set to 0
b. 4-1 set to 0
c. 4-2 set to 0
d. 4-3 set to 0
- Power OFF/ON to return to normal copy mode.
Notes:
A. These setting will allow the ADD TONER message to be displayed immediately and only allow 100 copies to be thereafter.
B. Copier inhibit will automatically be released when a new toner cartridge is installed.

2. The toner conveyance gear is worn. The toner conveyance gear is driven by the toner supply motor located on the toner supply unit.
Replace the toner conveyance gear (p/n 26NA32680).

I may be able to get the manuals for a nominal charge. bkbell@brianbell.net

Nov 20, 2007 | Konica Minolta DiALTA Di200 Copier

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