J4/Ce Jumper Function Rules; Display Checking - IBM 4610 SureMark GR3 Programming Manual Supplement

4.2.3.1 J4/CE Jumper Function Rules

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Only authorized service personnel can move the J4/CE jumper.
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200 repair actions are allowed during the life of the fiscal printer and each repair action is stored in the
fiscal memory.
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When the repair action table is full, no more J4/CE jumper action can be issued and only the following
commands are allowed:
− 15 - Fiscal Memory Report - Extended and Short
− FF - Dump RAM & Fiscal Memory
− DA - Electronic Read Fiscal Memory Tables
− DB - Electronic Read Counters and Accumulators
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The RAM pattern is initialized after all the other initialization has been completed.
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This process can take a long time if the fiscal memory is almost full or full.
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Flags are set or cleared as shown below.

4.2.4 Display Checking

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The microcode continually checks for connection of the POS displays by monitoring the Serial I/O
(Device Channel) connection for display polls and then checking for appropriate responses.
Page 38 of 183 — IBM 4610 SureMark Fiscal Printer Turkey - Models GR3/GR5/GB3/GB5 Programmin