Iq23 Bcr Checkout Rap - Xerox DocuColor 2240 Service Manual

IQ23 BCR Checkout RAP

Use this procedure to troubleshoot edge-to-edge, very dense, single-color background
Procedure
Swap the Drum Cartridge that creates the high single-color background with any of the other
Drum Cartridges and make a test print. The background color remains the same.
Y N
Replace the Drum Cartridge causing the single-color background (see
ables in Section 6) (PL 4.1).
Go to Flag 3. Check the wires associated with the problem color for an open circuit. The
wires check out OK.
Y N
Repair or replace harness as required
Check for a loose connection at BCR HVPS PWB,
good.
Y N
Reconnect, repair or replace as required.
NOTE: The actual BCR bias voltage involves a high-frequency AC signal at a negative DC off-
set. The AC and DC values vary constantly, depending on run mode, Drum age, and several
environmental variables. Measured voltages will vary from machine to machine and job to job.
Program a Full Color copy job. While the job is running, check the pin on
ciated with the problem color for -400 VDC to -900 VDC:
K: pin 1
C: pin 4
M: pin 6
Y: pin 8
The voltages check out OK.
Y N
Replace the BCR HVPS PWB (PL
Inspect the contact (Figure 1) at the Drum Cartridge associated with the problem. The con-
tact checks out OK.
Y N
Repair or replace as required (PL 9.3).
• Check the Wire Harness (PL 9.3, item 2) between the BCR HVPS PWB and the Drum
Cartridge for an open circuit. Repair or replace as required.
• Replace the affected Drum Cartridge (see
• Replace the BCR HVPS PWB (PL
Image Quality
IQ23
Machine Consum-
(PL 9.3).
P/J581 (Figure 1). The connection
P/J581
9.1).
Machine Consumables in Section 6)
9.1).
is
that is asso-
(PL 4.1).
09/03
3-26
Initial issue
DC 3535/2240/1632, WC M24