I have a copier that went a little bit over the 100k with the original parts about 170k.
I cleaned it and after i changed the developer, developer sensor , drum
, cleaning blade for drum and fuser it gets stuck at L-detect with 0004
and if i start it up it gives me an error like F-26-3.
I tried to reopen the drum and check if there are any other visible problems but there was nothing that seem to be bad in it.
The
problem is that before I changed the developer and the drum, blade and
the fuser the copier went into a f-26-3 because i started it up without
the fuser, I know how can you forget but in the same time i do tech
support so you can imagine that my life is not that easy. With the old
and the new fuser i get the same type of errrors
If anyone has any kind of ideas please feel free and share them.
Thank you all.
Details
Subject:
Background, overtoning, and/or F26-x codes.
Description:
Background, overtoning, and/or F26-x codes.
Solution:
PROBABLE CAUSES:
1. Overtoned developer.
Install fresh developer (PCUA 950237) and run the L-detect adjustment. To run the L-detect adjustment, perform the following:
a. Enter the 36 mode (power the copier ON while pressing the 3 and 6 keys).
b. Press [1. HV adjustment].
c. Press [Next] several times until the display reads [HV adj (L detection adj)].
d. Press [Start].
e. When the adjustment is complete, the machine will stop and a value is displayed in [RESULT].
f. If the developer was sampled properly during the L-detect adjustment, the value displayed in [RESULT] will be in the 60-75 range.
g. If the L-detect adjustment [RESULT] value is outside of the 60-75 range, than the TDS (toner density sensor) should be checked.
2. Failed TDS (toner density sensor).
To check the TDS, perform the following:
a. Remove the IP unit (if an IP unit is installed).
b. Remove the rear and left rear side cover.
c. Remove the board cover/D (p/n 26NA73280) for access to the PRDB.
d. Enter the 36 mode (turn the machine ON, while pressing the 3 and 6 keys).
e. Select [1. HV adjustment].
f. Press [NEXT] several times until the display reads [HV adj. (Toner auto supply)].
g. Locate TP14 (TDS AN) in the middle of the PRDB above CN 25.
h. Using a voltmeter (20V DC range), place the red meter lead on TP14 and the black meter lead to frame ground.
i. Press the START button on the control panel.
j. The analog voltage reading on the volt meter during sampling should be (with properly toned developer) between 1.2 and 2.0VDC. If the voltage reaches 2.0VDC, M4 (toner addition motor) will turn on and add toner. When the toner auto supply adjustment is finished the voltage should read approximately 1.8VDC.
k. If the voltage reading is not within this range, replace the developer (PCUA 950237), TDS (p/n 26NA88040) and run the l-detect adjustment while monitoring TP14 on the PRDB.
3. Failed write unit (the TCSB monitors dot pattern patches created on the drum and adjusts the laser output for Maximum Power Control).
If developer has been replaced, L-detect run, the TDS voltage checks, and the developer is still overtoning (M4 continuously adds toner), replace the write unit (p/n 26NA-6503).
4. Clogged machine filters.
Check all machine filters to verify they are not clogged. Clogged cooling fan filters prevent proper ventilation which can cause the adhesive on the write unit glass cleaner to melt due to high internal temperature, causing smears on the glass.
Note: Information provided by Matthew Kennedy, Perry Corporation.
SPECIAL NOTE: Solution contribution by Don St. Onge, Workgroup/SSD
Attachments:this is additional information on f-26-2
and i have given you info on f-26-3
you should revue all the information
hope that helps
hi. I got stuck in that f-26-3 error on my konica 702. The problem is i put a compatible toner (katun) and imediately i get backgrouding. I modified charge (36 menu hw adjust) to 120 (after initialy peform an l deetct ajust without to change the developer in ideea that machin wil auto adjus to a new values. I get 005 to l detect and copies became mor darked and bacgrounded.)
Butnow i get every tim f-26 3. I reverted back to 100 in hw adjust charge but without any change. Now copier is completely bloed wihthis errr. I don;t ant to cange the eveloper is like new (70-80 k copies). I stherea any posiblity to manualy adjust the L detection result.I verified sensors but it is ok. Tnx a lot.
hi. I got stuck in that f-26-3 error on my konica 702. The problem is i put a compatible toner (katun) and imediately i get backgrouding. I modified charge (36 menu hw adjust) to 120 (after initialy peform an l detect adjust without to change the developer in ideea that machine will auto adjust to a new values. I get 005 to l detect and copies became more darked and backgrounded.)
But now i get every time f-26 3. I reverted back to 100 in hw adjust charge but without any change. Now copier is completely bloked with this error. I don't want to cange the developer, becaue is almost new (70-80 k copies). Is there aany posiblity to manualy adjust the L detection result. ? I verified sensors but it is ok. Tnx a lot.
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SOURCE: Konica 7022 F-26-3 L detect 0004
few things you want to check,could be your blade flpped,check TDS sensor wiring.
toner supply pound up preventing from adding to developer.or developer is bad or the wrong one
TDS part # 26na88040
toner supply part # 26wa-3200
developer # pcua -950254
hope that helps
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