bizhub c451/550/minolta c650 parts reset
March 28, 2009
HOW TO:
fusing unit reset:
- turn of the main switch
- remove the fusing unit
- remove the left cover of the fusing unit
- change the old fuse (green resistor) with 80mA new fuse
- put back the cover andthe fusing unit
turn on the machine
transfer unit reset:
to reset use a new 80 mA glass fuse

bizhub c451,c 550,minolta c650 trouble
March 28, 2009
Jam in DF611:
-on 2-nd side:
Check mylar on the 2nd transport guide plate.
Replace the damaged mylar p/n : 9J07 4703 01
-on 1st side:
- put the tension spring of feed roller in lower position.
- ckech the sensors inside DF611 case and use some adhesive (super glue, super bond) so that the sensors cases will be hard-set.
P21 warning :
- color shift in main scan direction
the amount of color shift is different between front and back side. Color shift occurs at 1 to 2 mm in the worst position.
bizhub C650/C550/C451 (FW Ver.6B only)
The problem will be observed when below 2 conditions meet. However it is not always but it depends on the gain of image density sensor (IDC).
1. When MFP returns from sleep mode within 8 hours from the last image stabilization.
2. In case MFP detects temperature change in printer head at more than 2 degrees from the last regist control when returning from sleep mode.
<Cause>
Regist control, which takes place in above condition, is carried out with improper sensor gain setting.
- P-21 is displayed when the sensor gain is low for the MFP to detect toner pattern.
- Color shift occurs when MFP miss-detect toner pattern due to improper gain setting.
How to recover the problem:
-Apply FW Ver.6M or later
- Turn off/on the main switch
- Carrying out image stabilization
minolta cf9001
March 27, 2009
- Old product “oldies but goldies “:
- Minolta CF9001 and Minolta CF910:
- undifferntiated,aleatory and recurrent trouble codes just after power on : check, clean or CHANGE main relay p/n 9341221021.
- white dots on magenta :change the magenta starter
- blue background in middle of the page :
in service mode, counter, life, check the drum’s life : if life reached on 20.000 -change the drum and cleaning blade ,reset counter life for both.- 4 .white strips : in service mode test mode -halftone –print C,M,Y,K test: If the white strips are in same arrangement :
-clean or change corona wire of transfer corona unit (inside of transfer drum)
-clean (use water and soap -no alcohol)- grid of drum charging corona
-remove and clean mirror’s box and laser path on the right side of the copier .
bizhub c350 color shift trouble.
March 21, 2009
First-Be sure to check the correct setting in color shift registration adjustment:
Put a A3 paper on bypass tray, in service mode run color shift adjusment .
After that- remove the fusing unit . Under fusing unit check the sensor (loop sensor ) and the actuator movement .
Check also the actuator spring and fix it.
Reinstall the fusing unit .
Run again color shift registration in service mode .
minolta di350 reset all counters
March 21, 2009
In this mode you can reset all counters to 0.
How to reset all couters:
follow the procedure for reset trouble code (insert a paper clip into a small hole situated on the right side of the control panel).
The copier will be restarted.
when a small black dot is on the screen- press 3 key.
Now, in this menu press total clear tab.
di2510/di3510 trouble
March 5, 2009
abort code and restart after power-up:
-check if the CF card is inserted properly
-if CF card it’s, OK -need to reset BRAM:
next to CF card are INI jumpers.
-turn off the machine, pull the jumpers off and cross the pins to the far right and the middle in the verticale direction.
-power ON for 20 seconds then power off.
-remove jumpers and put them back in the original position.
power on.
How to reset C0500 code :
- open the right door
-in the small hole on the right side of the control panel(same as DI 350,di351)press the soft initialization
- When the dot appears on the LCD after reboot, press 3 key.
-enter the service code (default 0000000)
- The mode will change to the initialization screen.
-Choose trouble reset.
-after reboot close the right door
-if same trouble appear again- check the thermal fuse or thermistors(heat sensing elements) or replace the fusing unit.
Light copy on ADF (DF):
-clean with alcohol the optical unit (original glass, mirrors, lamp, lens)
-use the two screws in rear side of DF to correct the position of DF againts original glass.
-pull out the imaging unit and clean the frame glass of laser unit.
-still light copies? but print it’s OK - clean the CCD sensor (only for tech.rep.)
dialta di350, minolta di350 trouble
March 1, 2009
-how to imaging unit reset :
remove he imaging unit, remove the conector -in back of the IU.
in back of the conector you will see a black thin duct - inside this- a green resistor (in fact fuse)
Cut this resistor so that …..see more
How to trouble Co500 reset :
in the right side on control panel, beside LCD contrast currsor is situated a small hole .
insert a pick in this hole until copier will be restarted, then….
see more…
Dialta 152, dialta 183, di 1611/2011,bizhub 162,bizhub163
March 1, 2009
Minolta di 152 B/W copiers , 15 ppm, optional printer PI1802. -how to reset maintenance M2 -J– code -toner spilling -how to replace broken mylar -how to fix the cleaner unit (noise), how to rest trouble code c0500, co501
dialta di152 trouble
March 1, 2009
how to maintenance code reset :
utillity-stop -0-0-stop- 01-3-start-3-start-3-start.on display will be apear 00 .Press now ‘clear’ key .on display will be apear 40000 .Touch ’start’ and reset panel .That’s it !
code J– reset :
open the right door- check tension spring and lever’s movement in right side of the fusing unit . The tension spring is usualy too weak , so change it with new one , more strong. Then clean sensor and check correct highness of actuator(in sensor frame). If the actuator is too down -loosen screws of fusing unit , push up the fusing unit-in right side and tight screws.
Fix minolta di 152, minolta di 183 in same way.
spilling toner from imaging unit :
-remove the imaging unit ond open it in usual mode.
-remove the cover of the developing unit
-check in right (back) side of magnet roller -condition of the mylar .If is broken change it with a new one .you cane made new one from thin OHP film.Insert it under doctor blade and put here some adhesive (super bond, super glue). Meantime clean charging corona , charging grid , and replace drum in was broken from old mylar.Check also or replace the roll :

4163-5298-01
Fix minolta di 152, minolta di 183,,minolda di1611, minolta di2011, bizhub 162,bizhub 163 ,bizhub210 in same way.
how to fix cleaner unit : ….soon

