Fax Sc Codes - Gestetner A193 Service Manual

2. FAX SC CODES

When the FCU detects a Fax SC Code condition other than SC1201 and
SC1701, it resets itself automatically (default setting). This initializes the FCU
without erasing files in the SAF memory or resetting the switches.
Note For details on Fax SC Codes 1201 and 1701, refer to the
following sections.
If bit 7 of System Switch 1F is changed to ''1'', when the FCU detects a Fax
SC Code condition, it displays the code on the display and stops working
until the fax unit is initialized using one of the following methods:
•
Press the ''Facsimile'' key and make sure the Facsimile LED is on. Then,
hold down the ''Speed Dial'' key for more than 10 s.
•
Turn off the main and ac switches and turn them back on.
•
Remove the rear cover, and press SW2 on the FCU.
The fax unit cannot make automatic service calls in reaction to a Fax SC
Code, because the fax unit cannot make fax communications in SC Code
conditions.
2.1 SC1201
When the FCU detects an unrecoverable error in the SRAM, which requires a
complete SRAM initialization, the fax unit displays this SC Code and stops.
There is no way to recover from this error condition without a complete
SRAM initialization (all the user and service programmed data will be
erased).
The possible causes are:
•
SRAM backup battery defect or SW1 on the FCU is at the ''OFF'' position
•
SRAM or FCU physical defect
•
IC card or Data Copy Tool connection was loose
2.2 SC1701
When the FCU detects a serious error in the print timing control signal, the
fax unit displays this SC Code and stops.
To recover from this condition, turn the main and ac switches off and on, and
check the physical connection between the FCU and BiCU.
If the problem still remains, replace the FCU or BiCU board.
6-7
FAX SC CODES
SC1201