Kyocera KM-6030 Service Manual page 196

Code
C3500 Communication error between scan-
ner and SHD
• An error code is detected.
C3900 Backup memory read/write error
(scanner PWB)
• Read and write data does not match.
C3910 Backup memory read/write error
(scanner PWB)
• Data in the specified area of the
backup memory does not match the
specified values.
C4000 Polygon motor synchronization prob-
lem
• The revolution does not reach the sta-
ble speed within 20 s of the START
signal.
C4010 Polygon motor steady-state problem
• The polygon motor rotation is not sta-
ble for 5 s after the polygon motor rota-
tion has been stabilized.
C4100 BD initialization (A) problem
• When power is turned on, only laser A
is output and ASIC of main PWB
detects a BD error for 2000 ms.
C4110 BD initialization (B) problem
• When power is turned on, only laser B
is output and ASIC of main PWB
detects a BD error for 2000 ms.
Contents
Causes Check procedures/corrective measures
Defective SHD Replace the SHD PWB and check for cor-
PWB. rect operation.
Poor contact in the Check the connection of connector YC3 on
connector termi- the scanner PWB and YC4 on the SHD
nals. PWB, and the continuity across the connec-
tor terminals. Repair or replace if necessary.
Defective scanner Replace the scanner PWB and check for
PWB. correct operation.
Defective back up Replace the scanner PWB and check for
RAM or scanner correct operation.
PWB.
Problem with the Run maintenance item U022 to initialize the
backup memory backup memory data.
data.
Defective scanner If the C3910 is displayed after initializing the
PWB. backup memory, replace the main PWB and
check for correct operation.
Poor contact in the Reinsert the connector. Also check for conti-
polygon motor con- nuity within the connector cable. If none,
nector terminals. remedy or replace the cable.
Defective polygon Replace the laser scanner unit (see page 1-
motor. 6-42).
Defective engine Check if 24 V DC is supplied to YC17-1 on
PWB. the engine PWB. If not, replace the engine
PWB.
Poor contact in the Reinsert the connector. Also check for conti-
polygon motor con- nuity within the connector cable. If none,
nector terminals. remedy or replace the cable.
Defective polygon Replace the laser scanner unit (see page 1-
motor. 6-42).
Defective engine Check if 24 V DC is supplied to YC17-1 on
PWB. the engine PWB. If not, replace the engine
PWB.
Defective laser Replace the laser scanner unit (see page 1-
scanner unit. 6-42).
Defective main Replace the main PWB and check for cor-
PWB. rect operation.
Poor contact in Check the connection of connector YC8 on
connector termi- the main PWB. Repair or replace if neces-
nals. sary.
Defective laser Replace the laser scanner unit (see page 1-
scanner unit. 6-42).
Defective main Replace the main PWB and check for cor-
PWB. rect operation.
Poor contact in Check the connection of connector YC8 on
connector termi- the main PWB and the continuity across the
nals. connector terminals. Repair or replace if
necessary.
Remarks
2FB/2FC-4
1-5-35