Printer Manager lockup

Occasionally, i.e. about once a week, after the ARMX6 has been on for an hour or more, I find the mouse pointer moves, but mouse buttons get no response. Pressing alt-break brings up Printer Manager. Stopping that restores operation of ther computer.
OS is 5.25 (25-Apr-18),
Printer Manager is 1-85 (07-May-16)
PS3 driver 1.21 (02-Jun-12)
Duplex driver 3.03 (25th July 2017)
Pressing Report after alt-break produces the following:

11:11:28.32 * WimpError * from Window Manager
Error : &050DEAD0
Message: Press Stop to terminate Printer Manager.
SVC Stack when Watchdog Error
Memory Dump From &FA207BB0 Length 1104 Width 16 Stop,Cancel,Next Task,Report
FA207BB0 |C8 4D 1B 20·00 00 00 00¦C1 00 04 00·06 00 00 00 : ÈM. ….Á……. : +0
FA207BC0 |E0 4D 1B 20·07 00 00 00¦00 00 00 00·00 00 00 00 : àM. ………… : +16
FA207BD0 |00 00 00 00·00 14 00 00¦24 4B 1B 20·C1 00 04 00 : ……..$K. Á… : +32
FA207BE0 |04 AC 21 30·4C 97 02 FC¦10 AC 21 30·40 0B 00 00 : .¬0@… : +48
FA207BF0 |13 00 00 00·30 00 00 00¦13 01 00 20·C0 08 02 FC : ….0…… À..ü : +64
FA207C00 |13 01 00 20·30 00 02 00¦48 C4 17 FC·F8 29 1B 20 : … 0…HÄ.üø). : +80
FA207C10 |CC 3E 01 20·14 3D 01 20¦00 0B 00 00·E0 0E 17 FC : Ì>. .=. ….à..ü : +96
FA207C20 |00 00 00 00·01 00 00 00¦68 7C 20 FA·AC 05 00 00 : ……..h| ú¬… : +112
FA207C30 |94 39 00 00·C0 CE 00 20¦00 00 00 00·C0 91 16 FC : ”9..ÀÎ. ….À‘.ü : +128
FA207C40 |1F 00 00 00·94 39 00 00¦B0 7F 20 FA·A0 06 02 FC : ….”9..°. ú ..ü : +144
FA207C50 |13 01 00 40·DF 00 06 00¦E4 0D 17 FC·00 00 00 00 : …ß...ä..ü.... : +160 FA207C60 |40 0D 17 FC·14 3D 01 20¦53 74 6F 70·2C 43 61 6E : @..ü.=. Stop,Can : +176 FA207C70 |63 65 6C 2C·4E 65 78 74¦20 54 61 73·6B 00 00 00 : cel,Next Task... : +192 FA207C80 |40 0D 17 FC·14 3D 01 20¦18 B0 C6 20·E4 4A 01 20 : @..ü.=. .°Æ äJ. : +208 FA207C90 |F4 00 00 00·28 37 BC 20¦00 00 00 00·AC 05 00 00 : ô...(7¼ ....¬... : +224 FA207CA0 |94 39 00 00·98 0D 17 FC¦03 00 00 00·14 00 00 30 : ”9..˜..ü.......0 : +240 FA207CB0 |24 00 00 30·10 01 00 60¦00 00 00 00·B8 B3 EE 4D : $..0...`....¸³îM : +256 FA207CC0 |AC 05 00 00·30 CD 00 20¦DC 05 02 FC·93 01 00 00 : ¬...0Í. Ü..ü“... : +272 FA207CD0 |00 00 00 00·68 7B DF 23¦B8 B3 EE 4D·10 01 00 60 : ....h{ß#¸³îM...` : +288 FA207CE0 |00 00 00 00·B8 B3 EE 4D¦AC 05 00 00·00 00 00 00 : ....¸³îM¬....... : +304 FA207CF0 |04 00 00 00·10 01 00 60¦34 05 02 FC·2C 4E 21 FC : .......`4..ü,N!ü : +320 FA207D00 |1C 02 20 FA·3C 7D 20 FA¦10 7D 20 FA·18 F6 20 FC : .. ú<} ú.} ú.ö ü : +336 FA207D10 |38 01 08 3F·AC 05 00 00¦60 D1 00 20·01 00 00 00 : 8..?¬...`Ñ. .... : +352 FA207D20 |00 00 00 00·04 00 00 00¦44 00 00 00·00 00 00 00 : ........D....... : +368 FA207D30 |68 7D 20 FA·50 7D 20 FA¦5C F7 20 FC·54 F5 20 FC : h} úP} ú\÷ üTõ ü : +384 FA207D40 |58 7D 20 FA·00 00 00 00¦60 F7 20 FC·FA 00 00 00 : X} ú....`÷ üú... : +400 FA207D50 |00 00 00 00·60 D1 00 20¦FA 00 00 00·E4 7D 20 FA : ....`Ñ. ú...ä} ú : +416 FA207D60 |6C 7D 20 FA·8C 24 21 FC¦40 F7 20 FC·13 01 00 40 : l} úŒ$!ü÷ ü…@ : +432
FA207D70 |42 4A 07 00·F4 4D 14 FC¦1C 02 20 FA·D0 7D 20 FA : BJ..ôM.ü.. úÐ} ú : +448
FA207D80 |42 4A 07 00·D0 7D 20 FA¦BC 7D 20 FA·3C 0F EA 23 : BJ..Ð} ú¼} ú<.ê# : +464
FA207D90 |01 00 00 00·13 01 00 20¦01 00 00 80·54 32 01 20 : ……. …€T2. : +480
FA207DA0 |34 5A DF 23·90 32 01 20¦00 00 00 00·88 13 00 00 : 4Zß#2. ….ˆ… : +496
FA207DB0 |00 00 00 00·C0 FA 20 FC¦68 7B DF 23·54 32 01 20 : ….Àú üh{ß#T2. : +512
FA207DC0 |3C 0F EA 23·34 5A DF 23¦90 32 01 20·00 00 00 00 : <.ê#4Zß#2. …. : +528
FA207DD0 |88 13 00 00·00 00 00 00¦00 00 00 00·E8 7D 20 FA : ˆ………..è} ú : +544
FA207DE0 |A4 EC 00 20·BC 1C 21 FC¦54 32 01 20·54 16 01 20 : ¤ì. ¼.!üT2. T.. : +560
FA207DF0 |14 7E 20 FA·94 82 20 FC¦D4 15 01 20·04 00 00 00 : .~ ú”‚ üÔ.. …. : +576
FA207E00 |88 7E 20 FA·54 32 01 20¦3C 7E 20 FA·18 7E 20 FA : ˆ~ úT2. <~ ú.~ ú : +592
FA207E10 |7C 8D 20 FC·CC 81 20 FC¦D4 15 01 20·03 00 00 00 : | ǘ üÔ.. …. : +608
FA207E20 |24 18 01 20·01 00 00 00¦54 17 01 20·88 13 00 00 : $.. ….T.. ˆ… : +624
FA207E30 |6C 7E 20 FA·50 7E 20 FA¦F0 8C 20 FC·04 8D 20 FC : l~ úP~ úðŒ ü. ü : +640
FA207E40 |D4 15 01 20·54 16 01 20¦88 7E 20 FA·00 00 00 00 : Ô.. T.. ˆ~ ú…. : +656
FA207E50 |04 00 00 00·00 00 00 00¦88 13 00 00·01 00 00 00 : ……..ˆ……. : +672
FA207E60 |84 7E 20 FA·70 7E 20 FA¦B4 8C 20 FC·C8 8C 20 FC : „~ úp~ ú´Œ üÈŒ ü : +688
FA207E70 |00 00 00 00·88 13 00 00¦AC 7E 20 FA·88 7E 20 FA : ….ˆ…¬~ úˆ~ ú : +704
FA207E80 |AC 94 20 FC·98 8C 20 FC¦23 03 04 00·01 00 00 00 : ¬” ü˜Œ ü#……. : +720
FA207E90 |D4 15 01 20·03 00 00 00¦24 18 01 20·01 01 00 00 : Ô.. ….$.. …. : +736
FA207EA0 |DC 7E 20 FA·B0 7E 20 FA¦00 BA 20 FC·5C 94 20 FC : Ü~ ú°~ ú.º ü\” ü : +752
FA207EB0 |00 00 00 00·FC 17 01 20¦74 15 01 20·00 00 00 00 : ….ü.. t.. …. : +768
FA207EC0 |1C B0 E7 24·08 17 CE 24¦00 00 00 00·04 4E 00 20 : .°ç$..Î$…..N. : +784
FA207ED0 |F4 7E 20 FA·E0 7E 20 FA¦48 7D 20 FC·38 B8 20 FC : ô~ úà~ úH} ü8¸ ü : +800
FA207EE0 |60 D1 00 20·DC 05 02 FC¦08 7F 20 FA·F8 7E 20 FA : `Ñ. Ü..ü.. úø~ ú : +816
FA207EF0 |FC 4F 20 FC·18 7D 20 FC¦13 01 00 20·00 00 00 00 : üO ü.} ü… …. : +832
FA207F00 |0C 7F 20 FA·1C 24 20 FC¦B0 4F 20 FC·03 00 00 00 : .. ú.$ ü°O ü…. : +848
FA207F10 |14 00 00 30·24 00 00 30¦17 00 00 00·00 00 00 00 : …0$..0…….. : +864
FA207F20 |11 00 00 00·FF FF FF FF¦79 41 01 20·00 00 00 00 : ……..yA. …. : +880
FA207F30 |A2 05 00 00·00 00 00 00¦A4 23 20 FC·DC 05 02 FC : ¢…….¤# üÜ..ü : +896
FA207F40 |13 01 00 20·00 00 00 00¦00 00 00 00·20 07 00 00 : … …….. … : +912
FA207F50 |17 00 00 00·00 00 00 00¦11 00 00 00·FF FF FF FF : ……………. : +928
FA207F60 |00 00 00 00·90 05 00 00¦A0 09 00 00·3C 3C 05 FC : ….… …<<.ü : +944
FA207F70 |7A 41 01 20·FF FF FF FF¦00 3F 05 FC·FF FF FF FF : zA. …..?.ü…. : +960
FA207F80 |08 0D 05 FC·18 04 05 FC¦81 00 00 00·00 00 00 00 : …ü…ü……. : +976
FA207F90 |78 8F 02 FC·F0 07 02 FC¦13 01 00 60·06 00 02 00 : x.üð..ü…`…. : +992
FA207FA0 |D4 28 17 FC·B8 96 FC 20¦64 5A 02 00·14 3D 01 20 : Ô(.ü¸–ü dZ…=. : +1008
FA207FB0 |64 5A 02 00·00 A8 05 00¦70 15 E0 20·00 00 00 00 : dZ…¨..p.à …. : +1024
FA207FC0 |00 00 00 00·00 00 00 00¦00 00 00 00·00 00 00 00 : ……………. : +1040
FA207FD0 |00 00 00 00·C0 91 16 FC¦21 00 00 00·00 00 00 00 : ….À‘.ü!……. : +1056
FA207FE0 |3C D0 8D E2·A0 06 02 FC¦10 01 00 60·E1 00 04 00 : <Ѝâ ..ü…`á… : +1072
FA207FF0 |D8 86 00 00·B8 00 00 00¦D4 86 00 00·5E 9A 01 00 : ؆..¸…Ô†..^š.. : +1088
SVC Stack unknown format
SVC Stack when Watchdog Error
Memory Dump From &FA207BB0 Length 1104 Width 16 Stop,Cancel,Next Task,Report
FA207BB0 |C8 4D 1B 20·00 00 00 00¦C1 00 04 00·06 00 00 00 : ÈM. ….Á……. : +0
FA207BC0 |E0 4D 1B 20·07 00 00 00¦00 00 00 00·00 00 00 00 : àM. ………… : +16
FA207BD0 |00 00 00 00·00 14 00 00¦24 4B 1B 20·C1 00 04 00 : ……..$K. Á… : +32
FA207BE0 |04 AC 21 30·4C 97 02 FC¦10 AC 21 30·40 0B 00 00 : .¬0@… : +48
FA207BF0 |13 00 00 00·30 00 00 00¦13 01 00 20·C0 08 02 FC : ….0…… À..ü : +64
FA207C00 |13 01 00 20·30 00 02 00¦48 C4 17 FC·F8 29 1B 20 : … 0…HÄ.üø). : +80
FA207C10 |CC 3E 01 20·14 3D 01 20¦00 0B 00 00·E0 0E 17 FC : Ì>. .=. ….à..ü : +96
FA207C20 |00 00 00 00·01 00 00 00¦68 7C 20 FA·AC 05 00 00 : ……..h| ú¬… : +112
FA207C30 |94 39 00 00·C0 CE 00 20¦00 00 00 00·C0 91 16 FC : ”9..ÀÎ. ….À‘.ü : +128
FA207C40 |1F 00 00 00·94 39 00 00¦B0 7F 20 FA·A0 06 02 FC : ….”9..°. ú ..ü : +144
FA207C50 |13 01 00 40·DF 00 06 00¦E4 0D 17 FC·00 00 00 00 : …ß...ä..ü.... : +160 FA207C60 |40 0D 17 FC·14 3D 01 20¦53 74 6F 70·2C 43 61 6E : @..ü.=. Stop,Can : +176 FA207C70 |63 65 6C 2C·4E 65 78 74¦20 54 61 73·6B 00 00 00 : cel,Next Task... : +192 FA207C80 |40 0D 17 FC·14 3D 01 20¦18 B0 C6 20·E4 4A 01 20 : @..ü.=. .°Æ äJ. : +208 FA207C90 |F4 00 00 00·28 37 BC 20¦00 00 00 00·AC 05 00 00 : ô...(7¼ ....¬... : +224 FA207CA0 |94 39 00 00·98 0D 17 FC¦03 00 00 00·14 00 00 30 : ”9..˜..ü.......0 : +240 FA207CB0 |24 00 00 30·10 01 00 60¦00 00 00 00·B8 B3 EE 4D : $..0...`....¸³îM : +256 FA207CC0 |AC 05 00 00·30 CD 00 20¦DC 05 02 FC·93 01 00 00 : ¬...0Í. Ü..ü“... : +272 FA207CD0 |00 00 00 00·68 7B DF 23¦B8 B3 EE 4D·10 01 00 60 : ....h{ß#¸³îM...` : +288 FA207CE0 |00 00 00 00·B8 B3 EE 4D¦AC 05 00 00·00 00 00 00 : ....¸³îM¬....... : +304 FA207CF0 |04 00 00 00·10 01 00 60¦34 05 02 FC·2C 4E 21 FC : .......`4..ü,N!ü : +320 FA207D00 |1C 02 20 FA·3C 7D 20 FA¦10 7D 20 FA·18 F6 20 FC : .. ú<} ú.} ú.ö ü : +336 FA207D10 |38 01 08 3F·AC 05 00 00¦60 D1 00 20·01 00 00 00 : 8..?¬...`Ñ. .... : +352 FA207D20 |00 00 00 00·04 00 00 00¦44 00 00 00·00 00 00 00 : ........D....... : +368 FA207D30 |68 7D 20 FA·50 7D 20 FA¦5C F7 20 FC·54 F5 20 FC : h} úP} ú\÷ üTõ ü : +384 FA207D40 |58 7D 20 FA·00 00 00 00¦60 F7 20 FC·FA 00 00 00 : X} ú....`÷ üú... : +400 FA207D50 |00 00 00 00·60 D1 00 20¦FA 00 00 00·E4 7D 20 FA : ....`Ñ. ú...ä} ú : +416 FA207D60 |6C 7D 20 FA·8C 24 21 FC¦40 F7 20 FC·13 01 00 40 : l} úŒ$!ü÷ ü…@ : +432
FA207D70 |42 4A 07 00·F4 4D 14 FC¦1C 02 20 FA·D0 7D 20 FA : BJ..ôM.ü.. úÐ} ú : +448
FA207D80 |42 4A 07 00·D0 7D 20 FA¦BC 7D 20 FA·3C 0F EA 23 : BJ..Ð} ú¼} ú<.ê# : +464
FA207D90 |01 00 00 00·13 01 00 20¦01 00 00 80·54 32 01 20 : ……. …€T2. : +480
FA207DA0 |34 5A DF 23·90 32 01 20¦00 00 00 00·88 13 00 00 : 4Zß#2. ….ˆ… : +496
FA207DB0 |00 00 00 00·C0 FA 20 FC¦68 7B DF 23·54 32 01 20 : ….Àú üh{ß#T2. : +512
FA207DC0 |3C 0F EA 23·34 5A DF 23¦90 32 01 20·00 00 00 00 : <.ê#4Zß#2. …. : +528
FA207DD0 |88 13 00 00·00 00 00 00¦00 00 00 00·E8 7D 20 FA : ˆ………..è} ú : +544
FA207DE0 |A4 EC 00 20·BC 1C 21 FC¦54 32 01 20·54 16 01 20 : ¤ì. ¼.!üT2. T.. : +560
FA207DF0 |14 7E 20 FA·94 82 20 FC¦D4 15 01 20·04 00 00 00 : .~ ú”‚ üÔ.. …. : +576
FA207E00 |88 7E 20 FA·54 32 01 20¦3C 7E 20 FA·18 7E 20 FA : ˆ~ úT2. <~ ú.~ ú : +592
FA207E10 |7C 8D 20 FC·CC 81 20 FC¦D4 15 01 20·03 00 00 00 : | ǘ üÔ.. …. : +608
FA207E20 |24 18 01 20·01 00 00 00¦54 17 01 20·88 13 00 00 : $.. ….T.. ˆ… : +624
FA207E30 |6C 7E 20 FA·50 7E 20 FA¦F0 8C 20 FC·04 8D 20 FC : l~ úP~ úðŒ ü. ü : +640
FA207E40 |D4 15 01 20·54 16 01 20¦88 7E 20 FA·00 00 00 00 : Ô.. T.. ˆ~ ú…. : +656
FA207E50 |04 00 00 00·00 00 00 00¦88 13 00 00·01 00 00 00 : ……..ˆ……. : +672
FA207E60 |84 7E 20 FA·70 7E 20 FA¦B4 8C 20 FC·C8 8C 20 FC : „~ úp~ ú´Œ üÈŒ ü : +688
FA207E70 |00 00 00 00·88 13 00 00¦AC 7E 20 FA·88 7E 20 FA : ….ˆ…¬~ úˆ~ ú : +704
FA207E80 |AC 94 20 FC·98 8C 20 FC¦23 03 04 00·01 00 00 00 : ¬” ü˜Œ ü#……. : +720
FA207E90 |D4 15 01 20·03 00 00 00¦24 18 01 20·01 01 00 00 : Ô.. ….$.. …. : +736
FA207EA0 |DC 7E 20 FA·B0 7E 20 FA¦00 BA 20 FC·5C 94 20 FC : Ü~ ú°~ ú.º ü\” ü : +752
FA207EB0 |00 00 00 00·FC 17 01 20¦74 15 01 20·00 00 00 00 : ….ü.. t.. …. : +768
FA207EC0 |1C B0 E7 24·08 17 CE 24¦00 00 00 00·04 4E 00 20 : .°ç$..Î$…..N. : +784
FA207ED0 |F4 7E 20 FA·E0 7E 20 FA¦48 7D 20 FC·38 B8 20 FC : ô~ úà~ úH} ü8¸ ü : +800
FA207EE0 |60 D1 00 20·DC 05 02 FC¦08 7F 20 FA·F8 7E 20 FA : `Ñ. Ü..ü.. úø~ ú : +816
FA207EF0 |FC 4F 20 FC·18 7D 20 FC¦13 01 00 20·00 00 00 00 : üO ü.} ü… …. : +832
FA207F00 |0C 7F 20 FA·1C 24 20 FC¦B0 4F 20 FC·03 00 00 00 : .. ú.$ ü°O ü…. : +848
FA207F10 |14 00 00 30·24 00 00 30¦17 00 00 00·00 00 00 00 : …0$..0…….. : +864
FA207F20 |11 00 00 00·FF FF FF FF¦79 41 01 20·00 00 00 00 : ……..yA. …. : +880
FA207F30 |A2 05 00 00·00 00 00 00¦A4 23 20 FC·DC 05 02 FC : ¢…….¤# üÜ..ü : +896
FA207F40 |13 01 00 20·00 00 00 00¦00 00 00 00·20 07 00 00 : … …….. … : +912
FA207F50 |17 00 00 00·00 00 00 00¦11 00 00 00·FF FF FF FF : ……………. : +928
FA207F60 |00 00 00 00·90 05 00 00¦A0 09 00 00·3C 3C 05 FC : ….… …<<.ü : +944
FA207F70 |7A 41 01 20·FF FF FF FF¦00 3F 05 FC·FF FF FF FF : zA. …..?.ü…. : +960
FA207F80 |08 0D 05 FC·18 04 05 FC¦81 00 00 00·00 00 00 00 : …ü…ü……. : +976
FA207F90 |78 8F 02 FC·F0 07 02 FC¦13 01 00 60·06 00 02 00 : x.üð..ü…`…. : +992
FA207FA0 |D4 28 17 FC·B8 96 FC 20¦64 5A 02 00·14 3D 01 20 : Ô(.ü¸–ü dZ…=. : +1008
FA207FB0 |64 5A 02 00·00 A8 05 00¦70 15 E0 20·00 00 00 00 : dZ…¨..p.à …. : +1024
FA207FC0 |00 00 00 00·00 00 00 00¦00 00 00 00·00 00 00 00 : ……………. : +1040
FA207FD0 |00 00 00 00·C0 91 16 FC¦21 00 00 00·00 00 00 00 : ….À‘.ü!……. : +1056
FA207FE0 |3C D0 8D E2·A0 06 02 FC¦10 01 00 60·E1 00 04 00 : <Ѝâ ..ü…`á… : +1072
FA207FF0 |D8 86 00 00·B8 00 00 00¦D4 86 00 00·5E 9A 01 00 : ؆..¸…Ô†..^š.. : +1088
SVC Stack unknown format