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A system and method are provided for recovering from print assembly failure in a printer with printed medium assembly capabilities. The method generates a first print set including a plurality of physical medium sheets, and stores the first print set of a first interim stacker. A second print set is

A system and method are provided for recovering from print assembly failure in a printer with printed medium assembly capabilities. The method generates a first print set including a plurality of physical medium sheets, and stores the first print set of a first interim stacker. A second print set is generated including a plurality of physical medium sheets. Sheets are accessed sheets from the first interim stacker and assembled with sheets from the second print set, generating a final print set with a plurality of sheets in a first order. The final print set is stored in an output stacker. In the event of a first print set failure, first print set replacement sheets are generating. In one aspect, generating the final print set includes directly merging first print set replacement sheets (bypassing the interim stacker) with sheets from the second print set.

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1. In a printer with printed medium assembly capabilities, a system for recovering from print assembly failure, the system comprising: a first print engine having an output connected to a first interim stacker paper path to supply a first print set including a plurality of physical medium sheets, an

1. In a printer with printed medium assembly capabilities, a system for recovering from print assembly failure, the system comprising: a first print engine having an output connected to a first interim stacker paper path to supply a first print set including a plurality of physical medium sheets, and an output connected to a bypass paper path, the first printer comprising a single printer which is directly connected to both the first interim stacker paper path and the bypass paper path;a first interim stacker having an input to accept the first print set from the first print engine via the first interim stacker paper path and an output to supply the first print set;a merger module having an input connected to the first print engine via the bypass paper path, an input to access sheets from the first interim stacker, and an input to accept bypass commands, the merger module accepting a second print set including a plurality of physical medium sheets, which are first print set replacement sheets˜assembling sheets accessed from the first interim stacker with sheets from the second print set, and supplying a final print set with a plurality of sheets in a first order;an output stacker having an input to accept the final print set; a recovery module having an input to accept a failure signal, an output to supply replacement sheet print commands to a print engine, and an output to supply bypass instructions to the merger module in the event of a first print set failure; andwherein the merger module directly merges first print set sheets, with sheets from the second print set, in response to the bypass instructions. 2. The system of claim 1 wherein the first print engine has an input to receive first print set printing instructions from a first source; and, wherein the recovery module determines sheets from the first print set that require reprinting in response to receiving a failure signal, the recovery module sending a failure message to the first source and receiving printing instructions for the generation of the first print set replacement sheets. 3. The system of claim 1 wherein the first print engine supplies the first and second print sets. 4. The system of claim 1 wherein the first print engine generates the first print set; and, the system further comprising:a second print engine having an output to supply the second print set. 5. The system of claim 4 wherein the first print engine has an output connected to a recovery unit input to supply a print failure signal; wherein the recovery unit supplies first print set replacement sheet commands in response to a failure to generate first print set sheets; and,wherein the second print engine has an input connected to the recovery unit output, the second print engine supplying first print set replacement sheets in response to first print set replacement sheet commands from the recovery unit. 6. The system of claim 1 further comprising: a second interim stacker having an output to supply the second print set; and,wherein the merger module has an input connected to the second interim stacker output, the merger module supplying the final print set by accessing sheets from the second interim stacker, and assembling sheets accessed from the first interim stacker, with sheets accessed from the second interim stacker. 7. The system of claim 6 wherein the second interim stacker has an output connected to the recovery unit input to supply a storage failure signal; wherein the merger module has an output connected to the recovery unit input to supply an access failure signal;wherein the recovery unit supplies second print set replacement sheet commands and bypass commands in response to receiving a failure signal selected from a group consisting of a failure to generate second print set sheets, a failure to store second print set sheets in the second interim stacker, a failure to access second print set sheets from the second interim stacker, and a failure to supply undamaged second print set sheets; and,wherein the merger module directly merges second print set replacement sheets, with sheets from the first print set, in response to the bypass instructions. 8. The system of claim 7 further comprising: a second print engine having an output to supply the second print set and an output to supply a print failure signal to the recovery unit;wherein the recovery unit receives the print failure signal from the second print engine; and,the system further comprising:a third print engine having an input to receive second print set replacement sheet commands from the recovery unit, and an output connected to the merger module to supply second print set replacement sheets. 9. The system of claim 1 wherein the merger module includes an output connected to the output stacker, for sending first print set replacement sheets directly from the first print engine output, bypassing the first interim stacker. 10. The system of claim 1 further comprising: a third interim stacker having inputs and outputs for the temporary storage of replacement sheets;wherein the recovery module supplies replacement sheet commands in response to a failure signal, for generating replacement sheets for the entire first print set and storing the replacement sheets in the third interim stacker; and,wherein the merger module directly merges first print set replacement sheets from the third interim stacker with sheets from the second print set. 11. The system of claim 1 wherein the first print engine has an output connected to a recovery unit input to supply a print failure signal; wherein the first interim stacker has an output connected to the recovery unit input to supply a storage failure signal;wherein the merger module has an output connected to the recovery unit input to supply an access failure signal; and,wherein the recovery unit supplies first print set replacement sheet commands and bypass commands in response to a failure signal selected from a group consisting of a failure to initially generate first print set sheets, a failure to store first print set sheets in the first interim stacker, a failure to access first print set sheets from the first interim stacker, and a failure to supply undamaged first print set sheets. 12. The system of claim 11 wherein the recovery unit supplies discard commands in response to a signal indicating a failure to generate undamaged first print set sheets; the system further comprising:a discard stacker having an input connected to the first interim stacker output for the storage of damaged first print set sheets; and,wherein the first interim stacker has an input to accept the discard commands, the first interim stacker supplying damaged first print set sheets to the discard stacker, without manually moving the damaged first print set sheets, in response to the discard commands. 13. In a printer with printed medium assembly capabilities, a system for recovering from print assembly failure, the system comprising: a first print engine having an output to supply a first print set including a plurality of physical medium sheets, the first printer comprising a single printer which is additionally provided with a bypass paper path;a first interim stacker having an input to accept the first print set from the first print engine and an output to supply the first print set;a merger module having an input to accept a second print set including a plurality of physical medium sheet, an input to access sheets from the first interim stacker, and an input to accept bypass commands, the merger module assembling sheets accessed from the first interim stacker, with sheets from the second print set, and supplying a final print set with a plurality of sheets in a first order;an output stacker having an input to accept the final print set; a recovery module having an input to accept a failure signal, an output to supply replacement sheet print commands to a print engine, and an output to supply bypass instructions to the merger module in the event of a first print set failure; and,wherein the merger module directly merges first print set replacement sheets, with sheets from the second print set, in response to the bypass instructions;a discard stacker having an input connected to the first interim stacker output for the storage of damaged first print set sheets; and,wherein the recovery unit supplies discard commands in response to a signal indicating a failure to generate undamaged first print set sheets; and,wherein the first interim stacker has an input to accept the discard commands, the first interim stacker supplying damaged first print set sheets to the discard stacker, without manually moving the damaged first print set sheets, in response to the discard commands. 14. A system for recovering from print assembly failure, the system comprising: a printer including:a port to receive bypass instructions and replacement sheet commands, and to supply failure signals;a first print engine having an output connected to a first interim stacker paper path to supply a first print set including a plurality of physical medium sheets, and an output connected to a bypass paper path, the first printer comprising a single printer which is directly connected to both the first interim stacker paper path and the bypass paper path;a first interim stacker having an input to accept the first print set from the first print engine via the first interim stacker paper path and an output to supply the first print set;a merger module having an input connected to the first print engine via the bypass paper path, an input to access sheets from the first interim stacker, and an input to accept bypass commands, the merger module accepting a second print set including a plurality of physical medium sheets, which are first print set replacement sheets, assembling sheets accessed from the first interim stacker with sheets from the second print set, and supplying a final print set with a plurality of sheets in a first order;an output stacker having an input to accept the final print set;a client recovery module having an input to accept failure signals, an output to supply replacement sheet print commands to a print engine, and an output to supply bypass instructions to the merger module in the event of a first print set failure; and,wherein the merger module directly merges first print set replacement sheets, with sheets from the second print set, in response to the bypass instructions.