
(GY27-0366)  April 3, 2003
Chapter 3. 
This chapter supplements the IBM 4693, 4694, 4695 
Hardware Service Manual.
Messages
There are messages that are displayed or printed at the 
v 
v Wnnn
v Ennn
Power-on  reset messages
| At  | |
| to inform the operator of the fiscal unit status. If no message is printed, there may | |
| be printer error interfering with the  | |
| guidance. For a listing of fiscal printer  | |
| service supplement IBM Fiscal Printers ± Return Codes and  | |
| for your country and printer model. | 
Tnnn messages
These messages are displayed or printed at the 
T0020 Request not valid, retry
Explanation: The test or utility request that was entered is not valid.
User Response: 
T0050 RC=xxxxxxxx from main program
Explanation: A problem is detected within the operating system.
User Response: Type 0 and press S2 to stop the test and then 
T0051 Return code = xxx
Explanation: A problem is detected by the fiscal unit.
User Response: Refer to DOS and 4690 Return code descriptions.
T7160 Fiscal unit failure
Explanation: A problem is detected in the fiscal unit.
User Response: Switch POWER OFF and service the fiscal printer.
| © Copyright IBM Corp. 2002, 2003 | 17 | 
