| ReturnTo Theme-Group-Choice | Onelevelup |
| 2H028 | Counters in electrophotography and two-sided copying | |
| G03G13/23 ;15/23 | ||
| G03G21/02,394 | AA | AA00 OPERATING SYSTEMS |
AA01 | AA03 | AA04 | |||||||
| . Electronic systems | . Mechanical systems | . . Electromagnetically driven systems | ||||||||||
| AB | AB00 COUNTING |
AB01 | AB03 | AB05 | AB06 | |||||||
| . Setting of count values | . Automatic reset | . Count control | . . Malfunction prevention | |||||||||
| AC | AC00 OTHERS |
AC01 | AC04 | AC05 | AC06 | AC08 | AC09 | |||||
| . Control by counters | . Copy management | . . Key counters | . . Billing | . Displays | . . Warning means | |||||||
| G03G13/23;15/23 | BA | BA00 HANDLING OF ORIGINALS OR TRANSFER MATERIALS |
BA01 | BA02 | BA03 | BA05 | BA06 | BA07 | BA09 | |||
| . Handling of originals | . . One-sided originals | . . Two-sided originals | . Handling of transfer materials | . . Feeding of transfer materials | . . Processing of transfer materials | . Reversing mechanisms | ||||||
| BA12 | BA14 | BA16 | ||||||||||
| . Jam detection and processing | . Handling with an intermediate stacker | . Handling without an intermediate stacker | ||||||||||
| BB | BB00 CONTROL |
BB01 | BB02 | BB04 | BB06 | BB08 | ||||||
| . Mode switching | . . Two-sided or one-sided mode switching | . Sequence control | . Image position control | . Control of two-sided copying prevention | ||||||||
| BC | BC00 SPECIAL STRUCTURES |
BC01 | BC03 | |||||||||
| . Two photosensitive materials | . Two exposure scanning systems | |||||||||||
| BD | BD00 OTHERS |
BD01 | BD03 | BD04 | ||||||||
| . Displays | . Combination with other functions | . . Combination with synthesis copying |