Control Panel Service Check; Toner Starvation Service Check - Konica Minolta Bizhub 4700P Service Manual

4.7.5

Control panel service check

Warning—Potential Damage: Do not replace the control panel and controller board at the same time.
Each card contains the printer settings. When either of these cards is new, it obtains some of the
settings from the other card. Settings are lost when both are new and replaced at the same time.
Action
Step 1
Check the UICC cable for proper connection to the
UICC and to the controller board.
Are they properly connected?
Step 2
Is the control panel display blank?
Step 3
Replace the UICC. Go to
Did this fix the problem?
4.7.6

Toner starvation service check

Action
Step 1
Check the cartridge plunger.
Is the cartridge plunger properly attached to the front
door and is the spring functioning properly?
Step 2
1. Install a new cartridge plunger and spring. See
Cartridge plunger removal.
2. Print some pages.
Did this fix the problem?
Step 3
Did a 201.22 error display?
bizhub 4700P/bizhub 4000P Service Manual
UICC removals.
Yes
Go to step 2.
Go to step 3.
The problem is solved.
Yes
Go to step 4.
The problem is solved.
Go to step 4.
- 133 -
No
Reseat the cable.
The problem is solved.
Replace the controller
board. Go to Controller
board removals.
No
Go to step 2.
Go to step 3.
Go to step 5.