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on new systems, unknown toner message is coming up if empty cartridge would installed several times.
in this case systems write "mark" on the rfid chip and you always get the message...

It is discussed here all the time without any further system background knowledge. Tmaged's answer might be correct if the toner log had been published. Without real data, we're all just using our...

@Tom,
thx to share your experience.
I haven't heard this up to now, but I've noted it for myself.
Based on my experience, at Tomcat series it`s related to unstable fix temp.
When the paper...

FYI
For Zeus series it`s important to clean several parts every 300K.
It exists a very old bulletin from Zeus1 (6500i/ 8000i) but it`s also important for successor systems and other A3 mono color...

i forgot to attach this very old bulletin from 2015

Check event log and you will see C7620/ no more auto color registration during calibration process possible...
internal data out of 255/ (max data), no more auto color correction possible.
By...

We had the problem on a few 3510i systems when the unit was placed near by the window and there was light coming in from outside.
Turn the system by 90° for testing.(Maybe end customer can do it?)

62160

Have had same missing clip and system worked well after mounting from new one, but later we got same issue again....
Finally since drum driving shaft work, no more claims from endcustomer...

do you have 24V power supply on YC19/ pin 18 and 3,3V on YC19/ pin 14?
Maybe engine pcb broken

high voltage problem
remove duplex unit, check/ replace high voltage pcb
62154

have had good results with cleaning from drum drive shaft and usage from high conductive grease.
Stripes are without rear and front margin, this means drum high voltage problem.
If we get ground...

U139 for check from external/ internal conditions only.
No affect for print quality!
If we have bad conditions, system can`t work probably.

After toner replacement image get worse?
Non original...

Welcome to the club!
Yes, well known because Iris series do not like wrong maintenance.
Extract from service manual/ chapter maintenance:
(1) Precautions
Before disassembling the main unit, press...

drum- and dv refresh 2 times from system menu
U952 complete setup workflow, not U464/ calib only.
U139 for controlling from enviroment.
Have had several cases with outer temp less 17 degree and...

@Samanator
i agree with you, but you forgot one important point:

finally the system was the reason, not the technician, end customer will not buy Kyocera systems anymore...and he will inform...

You has to ask kyo tech for reset command in this case
Have hat same problem on several systems
This was the reason why I asked kyo for this, after several reminders i received capture files based...

years ago (>10 years) i went to dealer for technical assistance because cass 2 wouldn`t loaded.
tech spend >4 h for repair, but he failed and owner asked for additional help.
I arrived at 11:00 am...

as Tonerkiller has written, it`s important to know if we get margins or not.
in case of HV error, you get full solid print outs without any margins.
HV pwb contacts could be the reason.
Remove...

try the following:
drum refresh and dv refresh 2 times
Running from U952/ setup workflow
Check U139 temp/ humidity before

U467 procedure also usefull for other systems.
At some system you find initialize button in U468/ e.g.TA2550ci
For small A4 color systems special FRPO commands needed, you has to ask kyo tech for...

at first i would check fixing unit for broken gear.

our techs finally replaced LSU units and still same issue.
At least wrong registration values by U468 found.
Feel free to clean or change laser unit, but at first i would reset color reg values in...

well known for me with CMY at once
let`s try the following:
1. reset color registration by U467 (set to OFf/ leave SP/ enter SP again and set back to ON)
2. Run U469
let us know the result
61986

read/ write error in scan partition from SSD, i think
Run U917/ export
format SSD by external pc, delete all partitions and assemble again.
FW upgrade twice and U917/ import
I think system will...

sample pic can be helpfull...
if possible scan in full format,
if not possible:
with or without margins against running direction?