Service manual

7020
lowered.
SOLUTION: To check the RADF open/close detect sensor for proper operation, perform the
following:
1. Power the copier OFF.
2. Access the 47 mode (power the copier ON, while pressing the 4 and 7 keys), input code 60,
press *1*.
3. The state of the RADF open/close detect sensor will be displayed on the touchscreen as IN:
OFF with the RADF in the lowered position and should change to IN: ON with the RADF in the
raised position. If, the state of the RADF open/close detect sensor fails to properly detect the
raised or lowered position of the RADF, thoroughly inspect the RADF open/close detect sensor and
open/close actuator for proper alignment.
4. Replace the RADF open/close detect sensor (p/n 12QV85510), open/close actuator (p/n
13GL73020), detecting spring (p/n 13GL73030), or open/close part (p/n 13GL73010) as necessary.
J11 or J12 when feeding from Tray 1 or Tray 2.DESCRIPTION: SOLUTION ID:
131654
SOLUTION:
CAUSE: The drive belt has come off conveyance pulley B, conveyance pulley A, or the idler pulley.
SOLUTION: Pull out Tray 1 and Tray 2. Inspect the drive belt (p/n 26NA50450) to ensure it is
meshed with conveyance pulley B (p/n 26NA50430), idler pulley (p/n 26NA50370) and conveyance
pulley A (p/n 26NA50420).
SPECIAL NOTE: Solution provided by Jim Wood, KBT Orlando.
USAGE:
5
Toner packing in the toner recycling unit.DESCRIPTION: SOLUTION ID:
137003
SOLUTION:
CAUSE: Cooling capability around the drum carriage is diminished due to a dust build up on the
dust proof filter for the cooling fan (FM4).
SOLUTION: Clean the dust from the dust proof filter for the cooling fan located on the left side of
the machine.
Note: Clean dust proof filter for the cooling fan every PM (100,000 copies).
USAGE:
5
Jamming from all paper trays.DESCRIPTION: SOLUTION ID:
152746
SOLUTION:
CAUSE: No 24V DC to the resist (loop) clutch (p/n 26NA82010) due to a failed ICP11 on the
PRDB.
SOLUTION: Check ICP11 for 24V DC and replace the PRDB (p/n 26NA-9022) as necessary.
USAGE:
5
F51-06 displayed at power up.DESCRIPTION: SOLUTION ID:
159610
SOLUTION:
CAUSE: A loss of 24V DC to CN22 pin 5 on the PRCB (printer control board) due to an open
ICP11.
SOLUTION: Check CN22 pin 5 for 24V DC. To check CN22 pin 5, perform the following:
1. Remove the back panel from the machine and the IP432 support panel to gain access the
PRCB.
2. Enter the 47 mode (turn the machine ON, while pressing the 4 and 7 keys).
3. Locate CN22 in the lower right hand corner of the PRCB.
4. Set your meter to 200V DC and place you black meter lead to frame ground.
5. Place your red meter lead to pin 5 of CN22 and check for 24V DC.
6. If 24V DC is not present at CN22 pin 5, locate ICP11 in the lower right had corner above CN24.
7. With your black meter lead still at frame ground place your read meter lead to either leg of
ICP11 and check for 24V DC, and check the other leg of ICP11 for 24V DC.
8. If 24VDC is not present to either leg of ICP11, replace the PRCB (p/n 26NA-9303).
Note: Before replacing the PRCB, inspect for any pinched or broken wiring.
USAGE:
5
F26-3 at power up.DESCRIPTION: SOLUTION ID:
163142
SOLUTION:
CAUSE: The toner supply unit (p/n 26NA-3200) is bound up preventing toner from being added to
the developer unit.
SOLUTION: Replace the toner supply unit.
USAGE:
5
DB409, J92-0 when copying curled paper.DESCRIPTION: SOLUTION ID:
93601
SOLUTION:
CAUSE: When paper with a large curl if fed from the DB409, the paper may touch the rib of the
Guide part/Middle, resulting in a jam (J92-0).
USAGE:
4
43
Copyright 2005, Konica Minolta Business Solutions U.S.A., Inc.
May 2005