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24XX-100 Lexmark Form s Printer 2400 Serie s Le xmark and Le xmark with diamond design are trad emarks of Le xmark International, Inc., regis tered in t he Unite d States and/o r other coun tries.
Edition: November 2000 The followi ng paragraph does not app ly to any country where su ch pro visions are inco ns ist e n t wit h lo cal law : LEXMARK INTERNA TIONAL, IN C .
iii 24xx Tab le of Cont ents Safety In formation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Prefac e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii General Informa tion .
iv Ser v ice Manual 24xx Diagnostic Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -1 Power -On Se lf Te st (P OST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Print Tes t . . . . . . . . .
v 24xx Right Si de Gear s, Sub F rame Remo val . . . . . . . . . . . . . . . . . . . 4-34 Rollers Remov als . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36 Roller, Upper Feed Removal . . . . . . . . . . . . . . . . . .
vi Ser v ice Manual 24xx Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 -1 Lubricati on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 -1 Lubricati on Points . . .
vii 24xx Safety Inf orma tion • This product is de signed, t ested a nd appr ov ed to m eet str ict global safety standa rds w ith the use of sp ecifi c Lexmark compon ents. The safety f eatures of so me par ts may not always be obvious. Lexmark is no t respon sible f or th e use of o ther repla cement par ts.
viii Ser vice Ma nual 24xx Norme di sicurezza • Il prod otto è stato progettato, testato e ap prov a to in conform it à a sev e ri s tandard d i sicur ezza e per l ’ u tilizzo co n comp onenti Lexmar k spec ifici. Le c aratter isti che d i sicu rezza di alc une p ar ti non sem pre sono di im mediata c ompr ensione.
ix 24xx Paut as de Segur idad • Este pro ducto se ha dise ñ a do , verificad o y aprob ado para cum plir los m á s estr ictos e st á ndar es de seg urid ad global usando los c ompon entes esp ec í ficos de Lexmark. P uede q ue las car acter í sticas de s egur idad de al gunas pie zas no sean siempr e e vi dentes.
x Ser vi ce Manual 24xx Informac ió d e Segu ret a t • Aquest produ cte est à d issenyat, comprovat i aprov at per tal d'ac ompli r les estric tes no r mes de segur e tat globa ls am b l a util ilitza ci ó de co mponen ts esp ec í fics de Lexmark .
xi 24xx.
xii Ser v ic e Manual 24xx Preface This manual is div ided into the following chapt ers: • “ General Infor ma tion ” co ntains a g eneral des cri ption of th e pr inter an d the maintenan ce ap proach used to repair it.
Gene r al Inf or mati o n 1-1 24xx 1. General Information Printer Descr ipti on The Lexmar k TM Forms Pr inter 248 X-100 an d 249X -100 are small v ersat ile t ab l etop p rinters su itab le f or us e in th e h ome or small business. They are e special ly well -suited f or app licat ions that use continuous or multipar t f orm s.
1-2 Ser vice Ma nual 24xx Setup Mode Entering Setup Mode 1. Open th e operato r panel c ov er to access layer two . 2. Press Setu p to put th e pr inter in setup mode a nd pr int the Mai n Men u. 3. Press LineFeed to pr int a list of al l the av ai lable option s.
Gene r al Inf or mati o n 1-3 24xx Setup Menu Options Interface Me nu Options Menus Fun ction F orms Macro opti ons Customiz e macros to print a v ariety of f or ms. Data op tions Defines how i nfo r mation i s proces sed. Control optio ns Defines ho w the printer perf orms bas ic task s .
1-4 Ser vice Ma nual 24xx Printer Set tings Setting The T ear O ff P o sition When Auto T ear Off is on, o r se t to One S econd, it moves the top perforation of a continuous form to the tear off p osition, when all o f the f oll owi ng are true : • The pr inter h as fin ished pr inting.
Gene r al Inf or mati o n 1-5 24xx Setting T op-Of-Form (Cont inuous - Pull Mode) 1. T urn the print er on. The P aper O ut li ght b links if no p aper is loaded. 2. M ov e the pap er sele ct lev er down to th e cont inuous forms position. 3. Load conti nuous form p aper on th e pull tractor feed pins.
1-6 Ser vice Ma nual 24xx Options The 24x x pr inters suppo r t the following options: • A uto S heet Feeder (ASF ) • Inte rnal serial inte rf ace (RS 232) • OKI emul ation (9 w ire only) • T .
Diagno stic Inform atio n 2- 1 24xx 2. Diagnostic Information Start Make a quick visu al che ck f or defects (loose or broken par ts, unplugge d conn ectors, paper jams, and so on). V oltage, Ground, And Contin uity Readings V olt age Readin gs All DC voltages must be within + 5% through -10% of the v alu es to be co nsider ed correc t.
2-2 Ser vice Ma nual 24xx Error Indica tion T a ble The following table descr ibes the ser vice check entr ies for the pr inter error indicat ion co des. When an e rror indi cation c hange s after you have entered a s er vice check, you hav e an int er mittent pr oblem.
Diagno stic Inform atio n 2- 3 24xx Po w e r Ready Pa p e r O u t P anel Loc k Fo n t L oc k ON Blinkin g Blinkin g Blinkin g Blinkin g Beeps 10 times Home P osition Error Go to “ C arri er Serv ice Chec k ” on page 2-16 .
2-4 Ser vice Ma nual 24xx All LEDs O FF None P ower F ailure Check the c onti nuit y of t he power cord and th e vo lta ge of the user ’ s outlet. If they are correct, g o to “ P ower Service Check ” on page 2-27 .
Diagno stic Inform atio n 2- 5 24xx Sympto m Chec k T able 1. Sele ct th e sympto m that best describes the pr ob lem. 2. P erform th e appr opri ate actio n before you go to the in dica ted service chec k. Abnormal Indications Abnormal Noise Prob lems Symptom Action 7 or mo re lights tur n on b ut do no t turn off.
2-6 Ser vice Ma nual 24xx Abnormal Print O peration Pr oblems A uto Sh eet Feeder Problems Symptom Actio n Printer will not p rint, or be com e re ady . Abnormal operati on, incorrect char acters , or in corr ect li ne widt h. Printer is ready but will not pr int from th e computer cor r ec tly .
Diagno stic Inform atio n 2- 7 24xx Erro r Indications Operator P anel Prob lems P aper Feed Prob lems Symptom Action Ready an d Pa p e r Out li ghts blink. T ur n the printer off and then on. Go to “ Abn ormal Indicati ons ” on page 2-5 . Pa p e r O u t and Font lights blin k.
2-8 Ser vice Ma nual 24xx Load/Unload does not f unction when the push trac tor is inst all ed. F orm fee d length is not correct. Load/Unload functions with cut sheets in use. Be sure the paper sel ect le v er is in the c orrect position . Go to “ P aper Select Sensor Se rvice Check ” on page 2- 25 .
Diagno stic Inform atio n 2- 9 24xx Po w e r P ro b l e m s Lower feed rol l s haf t rotat es, b ut paper does no t feed. Pressing FormFeed does n ot f eed paper . Abnor mal no ise created while fe e d i ng . Pa p e r j a m s, s k e w s or cr eases. Incorrec t or no li ne spaci ng: wider , narro wer , or overlapp ing li nes.
2-10 Se r vice M anu al 24xx Print Quality Prob lems Symptom Actio n No print, bu t carrier mov es as if printi ng. Adj ust the f or m thic kness le v er to a low e r number . Be sure the printhead ca bles are not loos e or damaged . Be sure the interf ace cable is conne cted prop erly .
Diagno stic Informa tion 2-11 24xx Ribbon Feed Pr oblems Symptom Action Ribbon co mes o ff, become s lo os e or f olded, or jams . Ribbon feeds correct ly b ut is noisy . Chec k the ribbon cartr idge f or binds or d amage. Go to “ Carrier Ser vic e Ch e ck ” on page 2-16 .
2-12 Se r vice M anu al 24xx Irreco verable Oper ator Err ors Pa p e r O u t and Fo nt lights blink. If this indicat ion oc curs, the problem may be with the pa per p resent sens or or the paper select sensor . Chec k the f ollowing in the or der listed and if the print er does not work corr ectly , go to the i ndica ted ser vice check.
Diagno stic Informa tion 2-13 24xx Service Chec ks Abnormal Noise Se rvice Check Check the enti re pr inter for loose p ar ts. FR U Action 1 Rib bon Cartr idge Remo ve and reinstal l the ribbon cartr idge . 2 Printhead Discon nect the print head cab le(s).
2-14 Se r vice M anu al 24xx A uto Sheet Fe eder (ASF ) S erv ic e Check Note: Be sur e the sheet feeder is enabled in the Setu p Mode. Go to “ Setup Mode ” on page 1-2 . A uto S heet Fee der Princi ples of Op eration The Auto Sheet Feeder (ASF) feeds in to the cut she et pape r entr y throat.
Diagno stic Informa tion 2-15 24xx FR U Action 1 P aper Select Sensor With the paper se lect le ver in th e cut sheet position, do the f ollow ing: • T ry to load a c ut sheet with Load/Unlo ad . (This bu tton should not wo rk) • If paper lo ads, g o to “ Paper S e lec t Se ns or Service Chec k ” on pa ge 2-25 .
2-16 Se r vice M anu al 24xx Carrier Servic e Chec k Note: The C arrier Ser vic e Chec k incl udes t he carrie r driv e, home positio n sensor an d r ibbon feed. FRU Ac tio n 1 Carrier V erify the carrier moto r connector is conn ected to the logi c board a t CN2.
Diagno stic Informa tion 2-17 24xx 3 Carrier Mot or If the home positio n sensor i s oka y , verify t he the resista nce of the carrier motor wind ings are appro ximately 2 ohms f or all printers .
2-18 Se r vice M anu al 24xx Intermittent Problem Service Check FRU/S ymp tom A ct ion 1 The print er somet imes fails bef ore POST is comple te. Chec k fo r the f ollowing: 1. Loose conn ectors. Re connect a ll connect ors to the logic board. 2. Elec tr ical noi se or st at ic disc har ge.
Diagno stic Informa tion 2-19 24xx 2 Printer pow e r someti mes turns off. The cause of this p rob lem ma y be that the pow er circui t is f ailing, o r the wiring i s intermittently o pen. Chec k the f ollowing in sequen ce: 1. Check th e user ’ s outl et v oltage an d be sure it is within tol erance .
2-20 Se r vice M anu al 24xx 4I f t h e p r i o r sugges tions ha ve not co rrec ted the problem . The f ollowing ma y cause u ndefined o r intermittent f ailures: 1.Loose c onnector pins that f ail to cont act. Check t he followin g: • Reconnec t the connec tors of all FR Us an d printer interf ace cab les.
Diagno stic Informa tion 2-21 24xx No Print or Abnormal Print Service Chec k Operator P anel Service Chec k If the o perator pa nel is locked, only the Star t/Stop , FormFeed , T ear Off and Load /UnLo ad buttons ar e active. 24xx prin ters have a P a dlock LED to indica te that t he operator panel is locked.
2-22 Se r vice M anu al 24xx P aper Present Sensor Service Chec k FRU Ac tio n 1 P aper Present Sensor With no paper in the printer , the tr actor in the push pos it ion , a nd the p ape r s el ect le v er set to contin uous f or ms , press Load / Unload ; the gear tr ain should tur n f orw ard to loa d paper .
Diagno stic Informa tion 2-23 24xx P aper Feed Service Chec k Note: If paper crea ses or ja ms freque ntly , verif y the pap er is nei ther too thick nor thin . If necessar y , ref er th e user to the Us er ’ s Guide f o r specif ications of acce ptable paper s.
2-24 Se r vice M anu al 24xx 4 Oper ator P anel If paper do es not mo ve at a ll, ve rify the Load/Unload button is wo rking as f ollows: With the tr actor in the push po si tio n, po wer off , pow er on and then pres s Load/ Unload . The carrier should m ov e to the center o f the plate n.
Diagno stic Informa tion 2-25 24xx P aper Sel ect Sensor Service Chec k If form feed leng th is of f by about 1 i nch (25 mm), en ter Setu p Mode and verif y that the for m le ngth setti ng is co rrect.
2-26 Se r vice M anu al 24xx POST Se r vice Ch e ck 2 Pull T ractor Sensor A f ail ed pu ll tra cto r sens or can caus e Load/Unload to malfu nction. With the tr actor in the push position: • Press Load/Unload se veral times wh ile alternately hol ding do wn and rel easing th e left pull tractor actuator .
Diagno stic Informa tion 2-27 24xx P ower Se rvice Check FR U Action 1 P ower Supply If the c arrier does not mov e to the left afte r turning the printer off and then o n, be sure the line cor d v oltage t o the po wer supply is corre ct and the po wer supply outputs a re +40 V dc at CN 12 -1 , +4 0 V dc at CN1 2-2 an d +5 V dc at CN1 2-6.
2-28 Se r vice M anu al 24xx Print Spee d Service Chec k The spe ed of th e 24xx p rinte rs varies with the font, f o rm s thi ckness setting an d pri nthead te mperature.
Diagno stic Informa tion 2-29 24xx Printhead S ervice Chec k FR U Action 1 Printhead Cable s Pr inth ead If the printout co ntains mis sing or e xtra dots or lines , do the f ollowin g: • Chec k the continu ity and c onnection of the printhead ca b les and the s hort fle x ib le cab le .
2-30 Se r vice M anu al 24xx Printhead Impedance T ables 2480, 2490 - Appr o ximatel y 5 ohms 2481, 24 91 - Appro xima tely 8 to 16 ohms Dot Connec tor 1 CN400-1 3 & CN400-4 2 CN400-9 & CN400-.
Diagno stic Informa tion 2-31 24xx Pull T racto r Sensor Service Chec k The pul l tractor sensor detects the tractor in the pull pos ition and disables lo ad/unload and aut o tear-o ff . A failed sens or may prev ent load/unl oad from functioni ng, with the tractor i n the pu sh posi tion.
2-32 Se r vice M anu al 24xx T op-Of-Forms Serv ice Check FRU Ac tio n 1 T op-Of-F or m Sensor Chec k that the t op-of-f orm sensor and its flag are properly in stalled and are not damaged. 2 Logic B oard Remov e the pa per and se t the pape r select le ver to the cut sheet positi on and tu r n the printer on.
Diagno stic Informa tion 2-33 24xx T ractor 2 Service Chec k The T ractor 2 i n-place s ensor op ens dur ing i nstall ation, whe n its actuator touches the pr inter cover .
2-34 Se r vice M anu al 24xx 2 Logic Board Remove T rac tor 2 from the printer b ut le av e the cabl e connec ted. Be su re the slider ( the bl ack plastic piece jus t abo ve t he right co ve r) mov es after turning the p rinter off and th en on.
Diagno stic Informa tion 2-35 24xx 3 Beeps a nd T ractor 2 LED bl inks 3 times T rac tor 2 sel ected from op erator panel b ut printer does not detec t T racto r 2 or detect s that the T rac tor 2 mechani sm is n ot installed . FR U Action 1T r a c t o r 2 Board/Ca ble Asm.
2-36 Se r vice M anu al 24xx T ractor 2 Pape r Feed Proble ms FRU Ac tio n 1 T ractor 2 Be sure the gear on th e printer that driv es T rac tor 2 turns freely when the le ver is not pressed, but re mains st ill when th e lev er is pressed. Remov e the T rac tor 2 unit from the printer an d remove all pa per.
Diagnost ic Aids 3-1 24xx 3. Diagnostic Aids The pr inter contain s self te sts to help find and s olve problems. Y o u do not need to co nnect the pr inter to a comp uter or ter minal to run thes e test s.
3-2 Ser vice Ma nual 24xx P o wer -On Self T est (POST) The following tests ar e auto matically performe d when th e pri nter is tur ned on. • LEDs T est - Ch ecks operation of L EDs on the operator p anel. The LEDs tur n on and o ff after the pr inter is tur ned on , then all LEDs t urn on f o r a f ew second s.
Diagnost ic Aids 3-3 24xx Print T est The pr int t est helps you test and trou b les hoot the p r inter . T o star t the pri nt test: 1. Paper must be at the pr int pos ition; tes t does no t pri nt if paper is park ed. 2. Pr ess a nd hold Line Feed an d tur n the pr inter on.
3-4 Ser vice Ma nual 24xx Hex T race Mode The hex trace mo de helps the us er test an d troubleshoot pr ograms. Use the hex trace proce dure to g et a hexadecim al pr intout of the data str eam se nt to the pr inter. All data, inc luding b oth con trol and character d ata, pr int in hexadeci mal ins tead of ASCII.
Diagnost ic Aids 3-5 24xx Printer Default Setti ngs U .S. Defaults T o i nitiali ze or reset the pri nter to the U .S . factor y de f aul ts: (Code pa ge 437 C haracter Set 1, form len gth 11 i nch) 1. Make sure paper and the r ibbon ca r tr idge are ins talled .
3-6 Ser vice Ma nual 24xx Clearing P aper Jams Cut Sheet Jams T o clear cu t f orm paper jams: 1. T ur n the pr in ter off. 2. Set t he forms th ickness lever to position 7. 3. Push th e paper s elect lever down to the co ntinuous f or ms position. 4.
Repair Informatio n 4- 1 24xx 4. Repair Information This cha pter con tains adjus tments an d removal procedures. Whenev er par ts are rep laced, ma ke sure that all adjustme nts are correct by runni ng diagnos tics proc edures and checking adjustm ents as n eeded.
4-2 Ser vice Ma nual 24xx Adjustments CA UTION: Be s ure to unp lug the power cord whe ne v er you are working o n the pr inte r with one of the covers removed.
Repair Informatio n 4- 3 24xx 8. Usi ng a feeler gauge [ 1 ], sl owly adjust t he left gap adjus t bushing [ 2 ] counterc lockwise, until a gap of ( within 0.
4-4 Ser vice Ma nual 24xx Note: F o r maximum pri nt quality , adjust th e head gap on both the left and r ight sides of the pr inter to wit hin +/- 0.01mm. If the ga p v alu e exceeds the sp ecified range, retur n to s tep 4 a nd re-ad just both left a nd ri ght gap adjust bushi ngs.
Repair Informatio n 4- 5 24xx Remo val Pr o c edures CA UTION: Be s ure to un plug the power cor d whenev er you are worki ng on the p r inter with one of the covers remov ed.
4-6 Ser vice Ma nual 24xx Covers, Fr ont Remov al 1. Rotate the front cover out an d up about th ree inc hes from the bottom of the pr in ter. 2. Push th e front cover up and out o f the pr inter .
Repair Informatio n 4- 7 24xx Co vers, Option Remo val 1. From the bottom , pull the option cov er [ A ] out ward and up, removing it from the p r inter .
4-8 Ser vice Ma nual 24xx Cover s, T op Remov al 1. T ur n the pr inter o ff and disc onnect the p ower cord at the pr inter. 2. Remove the tractor assem bly , if it i s installe d in the pu ll tractor positi on, by pressing the lo cking lev ers and pull ing th e tractor asse mb ly out of th e p rinter .
Repair Informatio n 4- 9 24xx 8. T ur n the pr inter u pside down. 9. I nser t a flat blade scr ewdriver into ea ch of th e four holes [ A ] in the bott om cov er , releasing the t op cov er from the bottom cover .
4-10 Se r vice M anu al 24xx 10. T ur n the prin ter r ight si de up a nd inser t a flat blade sc rewdriver into eac h of the two hol es [ A ] in the back of the top cover .
Repair Informa tion 4-11 24xx Co vers, Ope rator P anel Assembl y Remov al 1. Remove the top cover . Go to “ Covers, T op Rem ov al ” on page 4-8 . 2. Dis connect t he operat or panel cable from th e operator pane l card, on the ins ide of the top cover .
4-12 Se r vice M anu al 24xx Cover s, Bottom Remov al 1. Remove the top cov er . G o to “ Cover s, T op Remov al ” on page 4-8 . 2. Remove the logic boar d. Go to “ Logic Boar d Remo val ” on page 4-14 . 3. Remove the power supply unit. G o to “ P ower Suppl y Remov al ” on page 4 -15 .
Repair Informa tion 4-13 24xx Electr onics Remov als EPR OM Removal 1. Rem ov e the opt i ons cov er [ A ], by pulling it o utward, up and o ut of the pr inter. 2. Remove the EPROM modul e. Note: When repl acing the EPROM mod ule, be su re the not ch on the modul e is toward the fron t of the p rint er .
4-14 Se r vice M anu al 24xx Logic Board Remo val 1. Remove the top cov er . G o to “ Covers, T op Removal ” on page 4-8 . 2. Disconnec t all ca bles connec ted to th e logic b oard. Go to “ Logic Boar d (9w & 24w) ” on pa ge 5-3 , f or conne ctor locat ion deta ils.
Repair Informa tion 4-15 24xx P ower Suppl y Remov al CA UTION: The power supply may be hot. 1. T ur n off the pr inter an d discon nect the p ower cord at bo th ends. 2. Remove the top cover . Go to “ Covers, T op Rem ov al ” on page 4-8 . 3. Remove the pri nt unit.
4-16 Se r vice M anu al 24xx Carrier Re movals Carrier Remo val 1. Remove the top cov er . G o to “ Cover s, T op Remov al ” on page 4-8 . 2. Remove the printh ead from t he carr ier . Go to “ Printhead Remov al ” on page 4 -27 . 3. Loosen the car r i er belt: a.
Repair Informa tion 4-17 24xx 4. Remove the reta ining wir e [ A ] from the left sid e of the carri er shaft..
4-18 Se r vice M anu al 24xx 5. Remove the screw [ A ] from the forms thickness lever and remove the lev er ..
Repair Informa tion 4-19 24xx 6. Remove the lower carr ier moto r mount sc rew [ A ]. 7. Remove the two screws [ B ] from the c arr ier shaft bushin g brack et on th e left end of the c arrie r shaft an d remove the b ra cket . 8. Remove the E-clip from th e right side of the carr ier s haft.
4-20 Se r vice M anu al 24xx 9. Push the carri er shaft [ A ] fr om the r ight sid e and out the l eft side of the pr inter. 10. Remove the carr ier f rom the pr inte r . Note: F ollowin g replacem ent, per form the P rin thead- to-Plat en Gap Adju stment.
Repair Informa tion 4-21 24xx Carrier , Motor Assembly Remov al 1. Remove the top cover . Go to “ Covers, T op Rem ov al ” on page 4-8 . 2. L oosen the carr ier be lt a. Loosen the t ension s crew [ A ]. b. Remov e tens ion from the c arr ier belt , by pulling up on the belt.
4-22 Se r vice M anu al 24xx 4. Remove the screw [ A ] from the forms thickness lever and remove the lev er ..
Repair Informa tion 4-23 24xx 5. Remove the screw [ A ] s ecu ring the carr ier m otor bracket to the bottom c ov e r . 6. Dis connect t he pr inthead cable from the logic bo ard an d mov e it back and out of the way , as shown. 7. Remove the five screws [ B ] securing th e carr ier motor bracket to the pri nt unit.
4-24 Se r vice M anu al 24xx P a per Handling Remov als P aper Select Lever Remo v al 1. Remove the top cov er . G o to “ Cover s, T op Remov al ” on page 4-8 . 2. Release the la tch an d remove the paper se lect l e v er fro m the ri ght si de frame.
Repair Informa tion 4-25 24xx Form Thic kness Lever Remo val 1. Remove the top cover . Go to “ Covers, T op Rem ov al ” on page 4-8 . 2. Remove the screw [ A ] from the lev er and remove the f or m thic kness le ver .
4-26 Se r vice M anu al 24xx Print Ha ndl ing Remov a ls Platen Re mo va l 1. Remove the top cov er . G o to “ Cover s, T op Remov al ” on page 4-8 . 2. Remove the two platen screws [ A ] from each end of t he platen. 3. Remove the platen from the paper tra y .
Repair Informa tion 4-27 24xx Printhead Remo val 1. T urn the p rin ter of f . 2. Dis connect the power cord a t the p rint er and a llow the pr inthead to cool for 15 minutes, prior to ha ndling. 3. Set the form thickness l ev er t o posi tion 7. 4. Remove the ri bbon access cover .
4-28 Se r vice M anu al 24xx Print Unit Remo val 1. Remove the top cov er . G o to “ Cover s, T op Remov al ” on page 4-8 . 2. Disconnec t all ca bles from the logic bo ard, except the p ower suppl y cab le. 3. Remove the screw from the form thi ckness lev er and r emov e the lev er .
Repair Informa tion 4-29 24xx 5. Remove the two grommet an chor ed screws [ A ] from t he right side of the p rint uni t. 6. Remove the pri nt uni t from the bottom cover , by pullin g up forcefully on bo th sides of the p rint unit.
4-30 Se r vice M anu al 24xx Ribbon Drive Rack Gear Remo val 1. Remove the top cov er . G o to “ Cover s, T op Remov al ” on page 4-8 . 2. Remove the carrie r . Go to “ Car rier Removal ” on pa ge 4-16 . 3. Unsnap t he white plastic end stop [ A ] fro m the top le ft side of the pr int uni t.
Repair Informa tion 4-31 24xx Gear s Remo v als Left Side Gear s Remo va l 1. Remove the top cover . Go to “ Covers, T op Rem ov al ” on page 4-8 .
4-32 Se r vice M anu al 24xx 3. Remove the f our screws [ A ] f rom the pa per feed motor bracket assemb ly ..
Repair Informa tion 4-33 24xx 4. Remove the paper feed motor brack et assem bly , e xposin g the gears, as shown..
4-34 Se r vice M anu al 24xx Right Side Gear s, Sub Frame Remo val 1. Remove the top cov er . G o to “ Cover s, T op Remov al ” on page 4-8 . 2. Unhook t he wire r etaine r [ A ] from the carr ier sha ft. 3. Remove the two screws and washers [ B ] fr om the s ub frame.
Repair Informa tion 4-35 24xx 5. Remove the sub frame exposing the r ight sid e gears [ A ], as sho wn..
4-36 Se r vice M anu al 24xx Roller s Remov als Roller , Upper Feed Remov al 1. Remove the top cov er . G o to “ Cover s, T op Remov al ” on page 4-8 . 2. Remove the screw from the pr int c able shield and r emove the shiel d. 3. Remove the gear from the lef t end of the u pper feed roller , as sho wn.
Repair Informa tion 4-37 24xx 4. Remove the two screws [ A ] from the r ight u pper feed roller brack et. On e screw also reta ins the up per feed roller ground clip . 5. Pul l the uppe r f eed roller from th e left bracket and out of th e printe r . 6.
4-38 Se r vice M anu al 24xx Roller , Lower Pinc h Remov al 1. Remove the top cov er . G o to “ Cover s, T op Remov al ” on page 4-8 . 2. Slide the c arr ier to t he f ar left of the pr inter . 3. Remove the f our screws [ A ] f rom the pa per feed motor bracket.
Repair Informa tion 4-39 24xx 7. Un hook the s pri ng cl ip [ A ] from th e ri ght end of the lower pinch rolle r shaft a nd push i t off the gra y slotte d spr ing block [ B ] toward the back of the pr inter, as shown. 8. Sli de the ca rri er to the righ t side of t he pr inter.
4-40 Se r vice M anu al 24xx 9. Unhoo k the spr ing clip [ A ] from the left en d of the lower pinch roller sha ft and p ush it off the gray sl otted spr ing block [ B ] toward the back of the pr inter, as shown. 10. Sli de the carr ier to the cen ter of the pr inter .
Repair Informa tion 4-41 24xx Roller , Lower Feed Remov al 1. Remove the top cover . Go to “ Covers, T op Rem ov al ” on page 4-8 . 2. Remove the pri nt unit. Go t o “ Print Unit Remo val ” on page 4-28 . 3. Remove the carr ier . Go to “ Ca rrier Removal ” on pa ge 4-16 .
4-42 Se r vice M anu al 24xx 9. Remove the two screws [ A ] secur ing t he platen to the side frames. 10. Remove the carr ier m otor brack et. Go to “ Carrier , Motor Assembly Remov al ” on page 4-21 . 11. Remove the five screws sec uri ng the le ft side f rame an d remove the frame.
Repair Informa tion 4-43 24xx Sensor s Remov als.
4-44 Se r vice M anu al 24xx Sensor , Pull T ractor Remo val 1. Remove the top cov er . G o to “ Cover s, T op Remov al ” on page 4-8 . 2. Remove the small screw secur ing the pull t ractor sens or to the inside of the left frame. Go to “ Sensors Remo vals ” on page 4-43 .
Repair Informa tion 4-45 24xx Sensor , P aper Select Remov a l 1. Remove the top cover . Go to “ Covers, T op Rem ov al ” on page 4-8 . 2. Remove the pri nt unit. Go t o “ Print Unit Remo val ” on page 4-28 . 3. T ur n the pri nt unit ups ide down.
4-46 Se r vice M anu al 24xx Sensor , Home P osition Sensor Remov al 1. Remove the top cov er . G o to “ Cover s, T op Remov al ” on page 4-8 . 2. Disconnec t the h ome posi tion sens or cable from th e logic board. 3. Unsnap t he home posit ion sens or [ A ] fr om the frame.
Repair Informa tion 4-47 24xx Options Remo val s A uto Sheet Fee der Gear s Remo val 1. Remove the ri ght cover . 2. Re lease the join t gear latch [ A ] and remove the joint gear . 3. Re lease the idle r gear latc h and rem ov e the idler g ear . 4. Rele ase the pick-up gear latch and remove the gear .
4-48 Se r vice M anu al 24xx A uto Sheet Feede r Pick-up Roller Remov al 1. Remove the cov e rs and th e cut sheet s uppor t. 2. Relea se the joint gear latch [ A ] and rem ov e the jo int gea r , i dler gear , and pi ck-up gear . 3. Remove the left and r igh t roller bushin gs.
Connecto r Locations 5-1 24xx 5. Connecto r Location s This cha pter ide ntifies th e locati ons of sp ecifi c par ts of the prin ter ..
5-2 Ser vice Ma nual 24xx Signal Connections P ower Suppl y (9w & 24w) Connector Pin # Signal CN1 1 +40 V dc 2 +40 V dc 3P o w e r G n d 4P o w e r G n d 5 Si gnal Gnd 6+ 5 V d c 7 P owe r Save Mo.
Connecto r Locations 5-3 24xx Logic Boar d (9w & 24w).
5-4 Ser vice Ma nual 24xx Logic Board - P arallel Interface Cable (9w & 24w) Connector Pin # Signal Pin # Signal CN11 1 -Strobe 19 Signal G nd 2 Da t a 0 20 S ignal Gnd 3 Da t a 1 21 S ignal Gnd 4.
Connecto r Locations 5-5 24xx Logic Boar d (9w & 24w).
5-6 Ser vice Ma nual 24xx Logic Board - S erial Board (9w & 24w) Connector Pin # Signal CN20 0 1+ 5 V d c 2+ 5 V d c 3- C T S 4D T S 5R X D 6R T S 7D S R 8T X D 9 Si gnal Gnd 10 SBSET Connector Pi.
Connecto r Locations 5-7 24xx Logic Boar d (9w & 24w).
5-8 Ser vice Ma nual 24xx Logic Board - USB Cable (9w & 24w) Logic Board - DC P o wer (9w & 24w) Connector Pin # Signal CN20 1 1+ 5 V d c 2D M N S 3D P L S 4 Si gnal Gnd Connector Pin # Signal.
Connecto r Locations 5-9 24xx Logic Boar d (9w & 24w).
5-10 Se r vice M anu al 24xx Logic Board - P rinthead (9w) Connector Pin # Signal CN40 0 1H 4 2H 6 C 3H 8 C 4H 1 C 5H 6 6H 2 C 7H 4 C 8H 8 9H 2 10 H9 11 HDTHERMO 12 +5 V dc 13 H1 14 H9C 15 H3 16 H7C 1.
Connecto r Loc ations 5-11 24xx Logic Boar d (9w & 24w).
5-12 Se r vice M anu al 24xx Logic Board - P rinthead (24w) Connector Pin # Signal CN30 0 1 +40 V dc 2R 1 5 3 +40 V dc 4R 2 1 5 +40 V dc 6R 2 3 7 +40 V dc 8L 2 4 9R 1 3 10 L22 11 L14 12 L20 13 +4 0 V .
Connecto r Loc ations 5-13 24xx Logic Boar d (9w & 24w).
5-14 Se r vice M anu al 24xx Logic Board - P rinthead (24w) Connector Pin # Signal CN30 1 1R 9 2R 1 1 3R 7 4R 1 7 5R 5 6R 1 9 7R 3 8 HDTHERMO 9R 1 10 +5 V dc 11 L2 12 +4 0 V dc 13 L4 14 +4 0 V dc 15 L.
Connecto r Loc ations 5-15 24xx Logic Boar d (9w & 24w).
5-16 Se r vice M anu al 24xx Logic Board - G ap Set Sensor (9w & 24w) Logic Board - Home P osition Sensor (9w & 24w) Logic Board - P aper Present Sensor (9w & 24w) Connector Pin # Signal C.
Connecto r Loc ations 5-17 24xx Logic Boar d (9w & 24w).
5-18 Se r vice M anu al 24xx Logic Board - P aper Select Sensor (9w & 24w ) Logic Board - P ull T ractor Sensor (9w & 24w) Logic Board - T op Of Form Sensor (9w & 24w) Connector Pin # Sign.
Connecto r Loc ations 5-19 24xx Logic Boar d (9w & 24w).
5-20 Se r vice M anu al 24xx Logic Board - Carrier Motor (9w & 24w) Logic Board - P aper Feed Motor (9w & 24w) Connector Pin # Signal CN2 1C A D 2C A C 3C A B 4C A A Connector Pin # Signal CN1.
Connecto r Loc ations 5-21 24xx Logic Boar d (9w & 24w).
5-22 Se r vice M anu al 24xx Logic Board - O perator P anel (9w & 24w) Connector Pin # Signal CN13 Logic Board 1 +5 V dc 2S L A T C H 3 +5 V dc 4T X D 5S i g n a l G n d 6R X D 7S i g n a l G n d .
Connecto r Loc ations 5-23 24xx Logic Boar d (9w & 24w).
5-24 Se r vice M anu al 24xx Logic Board - Dual T racto r Cable (9w & 24w) Connector Pin # Signal CN10 1 +40 V dc 2 +40 V dc 3P o w e r G n d 4P o w e r G n d 5+ 5 V d c 6C O C O M 7 D-SET 8 Si gnal Gnd 9C O A 10 COB 11 JA M 12 D-H.
Connecto r Loc ations 5-25 24xx Serial B oard - S erial Cab le (9w & 24w) Connector Pin # Signal Pin # Sig nal CN2 1 Cha ssis Gnd 13 NC 2T X D 1 4 N C 3R X D 1 5 N C 4R T S 1 6 N C 5- C T S 1 7 N .
5-26 Se r vice M anu al 24xx T rac tor 2 Cable Conn ectors The T ractor 2 cable is soldered to the T ractor 2 board at C N1; ther e is no c onnect or . Connector Mode CN 1- 1 + 26 V dc . CN 1- 2 + 26 V dc . CN1-3 Fr ame GND . CN1-4 Not used. CN 1- 5 + 5 V dc.
Prev entive Main tenance 6-1 24xx 6. Preventive Maintenance This cha pter des cribes proce dures for pri nter prev entive maint enance. Following these recomm endations can hel p prev e nt problems an d main tain optimum performan ce.
6-2 Ser vice Ma nual 24xx Lubrication P oints Oil • Oil Felt (car ri er block) • Tr a c t o r S h a f t Grease • Side F rame (Le ft) and G ears • Side Fr ame (R ight) a nd ASF Ge ars • Pinch.
Prev entive Main tenance 6-3 24xx Lubrication P oints (Oil) The oil felt [1] in the car ri er block. The tractor shaft [1]..
6-4 Ser vice Ma nual 24xx Lubrication P oints (Grease) Gear mount ing s tuds on the rig ht side fra me [2]. The lower pinch roller [2]..
Prev entive Main tenance 6-5 24xx Lubrication P oints (Grease) Continued Gear moun ting s tuds on the left s ide frame [ 2]..
6-6 Ser vice Ma nual 24xx Lubrication P oints (Grease) Continued Gear m ounting s tuds on the left A SF side fra me [2]. Gear mount ing s tuds on the rig ht ASF si de frame [2].
Pa r t s C a t a l o g 7- 1 24xx 7. P ar ts Catalog How T o Use This P ar ts Catalog SIMILAR A SSEMB LIES: If two assemblies c ontain a ma jor ity of ident ical par ts, they are shown o n the same list . Common par ts a re shown by one inde x number .
7-2 Ser vice Ma nual 24xx Assemb ly 1: Co vers.
Pa r t s C a t a l o g 7- 3 24xx Asm- Index Par t Number Descrip tion 1 - 1 12G 3877 Guide, Le ft P ape r 2 12G3873 Co ver , F ront Unit (2 480, 2490) 2 12G3874 Co ver , F ront Unit (2 481, 2491) 3 12.
7-4 Ser vice Ma nual 24xx Assemb ly 1: Co vers.
Pa r t s C a t a l o g 7- 5 24xx Asm- Index Par t Number Descrip tion 1 - 8 12G3856 Cov er , Bottom (2480 , 2490) 8 12G3857 Co ver , Bottom (2 481, 2491 ) 9 12G3 854 T rac tor Unit (24 80, 2490) 9 12G.
7-6 Ser vice Ma nual 24xx Assemb l y 2: Carrier / P aper Feed Right Side.
Pa r t s C a t a l o g 7- 7 24xx Asm- Index Par t Number Description 2 - 1 12G 384 1 C a r r ie r R ol ler Set 2 12G3894 Printhead Assem bly (24 80, 2481) 2 12G3895 Printhead Assem bly (24 90, 2491) 3.
7-8 Ser vice Ma nual 24xx Assemb l y 2: Carrier / P aper Feed Right Side.
Pa r t s C a t a l o g 7- 9 24xx Asm- Index Par t Number Description 2 - 22 12G3832 Roller , Upper F eed (2480, 2490) 22 12G3833 Rolle r , Upper F eed (2481, 2491).
7-10 Se r vice M anu al 24xx Assemb l y 3: Carrier / P aper Feed Left Side.
Pa r t s C a t a l o g 7-11 24xx Asm- Index Par t Number Descrip tion 3 - 1 12G 3905 Ge ar s an d Bush ing s, P ar t s Pack et ( 248X ) 1 12G 3906 Ge ars an d Bush ing s, P ar ts P acket (2 49X) 2 12G.
7-12 Se r vice M anu al 24xx Assemb ly 3: Carri er / P aper Feed Left Side.
Pa r t s C a t a l o g 7-13 24xx Asm- Index Par t Number Descrip tion 3 - 25 12G3931 Kit, H ead Gap Adj ustment 26 12G3947 Le ver , F or m Thic kness 27 12G3842 Motor , P aper F eed 28 12G3843 Brac ke.
7-14 Se r vice M anu al 24xx Assemb ly 4: Electr onics.
Pa r t s C a t a l o g 7-15 24xx Asm- Index Par t Number Descrip tion 4 - 1 12G3907 Screws , W ashers and Cl ips, P ar ts P acke t 2 12G3836 Kit, ESD Grou nd (2490, 2 491) 2 12G3887 Kit, ESD Grou nd (.
7-16 Se r vice M anu al 24xx Assembl y 5: ASF - Ro ller / Suppor t.
Pa r t s C a t a l o g 7-17 24xx Asm- Index Par t Number Descrip tion 5 - 1 12G 3814 Suppor t, AS F Cut Shee t W/ Gui des (24 8 0, 24 90) 1 12G3908 Support, ASF Cut Sheet W/ G uides (2481 , 2491) 2 95.
7-18 Se r vice M anu al 24xx Assemb ly 6: ASF - Side Frame / Co ver s.
Pa r t s C a t a l o g 7-19 24xx Asm- Index Par t Number Descrip tion 6 -1 95F68 93 ASF Springs, P ar ts P ac k et 2 95F68 92 ASF Gears and Bus hings , P ar ts P ack et 3 12G 392 0 Cover , ASF Ri ght .
7-20 Se r vice M anu al 24xx Assemb ly 7: T ractor 2 Option.
Pa r t s C a t a l o g 7-21 24xx Asm- Index Par t Number Descrip tion 7 - 1 12G3923 T ab le, T ractor 2 P aper W/ Guid es (2480, 2490) 1 12G3924 T ab le, T rac tor 2 P aper W/ Guides (2481, 249 1) 2 1.
7-22 Se r vice M anu al 24xx Coax / T winax Adapter Asm- Index Par t Number Descrip tion NS 12G3704 Adapt er , Coax (P ower Cable and Adapter) NS 12G3705 Adapt er , T winax (P ow er Cab le and Ada pte.
Index I-1 24xx Index A Abbrevia tions 1-6 Adjustm ents 4-2 Bidirect ion al Print 4-4 Printhead -to-Platen Gap 4-2 ASF Principl es of Op eration 2-14 C Connec tions Logic Bo ard Carrier Motor 5-20 DC P.
I-2 Ser vice Manual 24xx P Paper Jams Cleari ng Continu ous Forms 3-6 Clearing Cut Sheet 3-6 Parts ASF Roller/S upport 7-16 Side Fram e/Co ver s 7-1 8 Carrier /Pape r Feed L eft Si de 7-10 , 7-12 Carr.
Index I-3 24xx S Safety Inf ormation vii Service C hec ks 2-13 Abno rmal No ise 2-13 Abnormal Print 2-2 1 Auto Sheet Feeder 2-14 Carrier 2-16 Intermit tent Problem 2- 18 No Print 2-21 Opera tor P a ne.
I-4 Ser vice Manual 24xx Part Numbers 11A3 274 7-7 , 7-13 11A3 275 7-7 , 7-13 11A3 283 7-21 11A3 284 7-21 11A3 335 7-21 11A3 336 7-21 11A3 337 7-21 11A3 338 7-21 11A3 341 7-21 11A6 109 7-22 12G370 4 7.
Index I-5 24xx 12G389 2 7-11 12G389 3 7-17 12G389 4 7-7 12G389 5 7-7 12G389 6 7-7 , 7-11 12G389 7 7-7 12G389 8 7-7 12G390 0 7-7 12G390 1 7-7 12G390 2 7-11 12G390 3 7-15 12G390 4 7-15 12G390 5 7-7 , 7-.
I-6 Ser vice Manual 24xx.
Een belangrijk punt na aankoop van elk apparaat Oki 2400 (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen Oki 2400 heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens Oki 2400 vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Oki 2400 leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Oki 2400 krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Oki 2400 bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de Oki 2400 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Oki 2400 . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
