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Printer Repair
| QUESTION NO. P33103-5: Star SP 2000 POS Printer does not print off of system, put will print in self-test. I changed the ADM 232 LJR Interface IC, to no avail. |
| Found a crack in the traces of the ribbon cable to the print head. The first two traces go to the thermistor on the print head. The control board does not receive the voltage from the printhead, and operates as if the print head is overheated. This causes the printer to run slow and uni-directional, instead of bi-directional. |
| QUESTION NO. P32703-1: DFX-8500 dot matrix printer that when switched on the pin head immediately moves to the left and then all lights on the control panel blink a few times and the printer shuts itself off. I checked all connections inside the printer. |
| Check the interlock switch for intermittent or non operation or the encoder stripe under the carriage. |
|
QUESTION NO. P10903-9: Laserjet
IID printer. I need the resistor values between the BCR8Dm and the
S21Md4.
|
|
If you mean R102 and R103, they
are 150 ohms and 22 ohms.
|
| QUESTION NO. P82802-10: HP 600C printer, in self test works fine. When printing a document, it only prints small circles with happy faces and hearts. I changed printer cable, I tried different computers and operating systems (windows 95,98,me,XP) and get the same error. The driver I unloaded from HP web. |
| The parallel interface of the logic is not working, replace the logic card. |
| QUESTION NO. P61202-2: Epson Stylus 600 printer. I need the value of Q1 burned on the power supply. I can only read something like K16. |
| If the power supply board is C206PSE, Q1 is 2SK1603. |
| QUESTION NO. P61302-2: Epson Stylus Color 640 printer does not operate but has all the Leds flashing (paper/bk ink/color ink/power). I changed the complete printhead with wire and the problem continues. I took off the mainboard battery for some minutes but no positive results. |
| According to the service manual, all four LED's flashing is a maintenance request; the waste ink pads should be replaced, and then the Eeprom should be re-set. The waste ink pads are in the absorber tray, underneath the print mechanism, so the housing and print mechanism must first be removed, for access. To re-set Eeprom afterwards, power on printer while pushing the Load/eject and Cleaning buttons. When the Load/eject LED starts flashing, press down the Cleaning button, until the Bk and CMY ink LED's turn on (10 seconds), then release button and let printer initialize. |
| QUESTION NO. P61202-6: HP dj890c printer, power supply 4602-60003 is dead. Fuse f1 blown, also Q1 and Q5 blown. Need to id Q5, cannot read numbers-burnt. |
| Check C1, IC1 (UC3842N) for shorts, Q3, R4 and bridge rectifier. Q1 part number is K2545 and Q5 is A562. |
| QUESTION NO. P62102-4: Laserjet iii printer has error 50 message. The felt cleaning strip was welded to the fuser roller. The thermal cutout on the fuser had gone O/C. Replaced with a reconditioned fuser assembly with the similar result - wasn't quick enough to turn the printer off after seeing a wisp of smoke coming from the fuser. (The thermal cutout went O/C. and the felt had just started to melt to the fuser roller.) The voltage across the heater pins was measured at 240v (the heater lamp is rated is rated at 230v for OZ). |
| A common cause of a type 50 error in the Laserjet III, is failure of the Triac (Q101) on the AC driver PCB. If that Triac is bad, also check the two resistors, the optocoupler, and check for leaking electrolytic capacitors. If doing board swaps, be sure to use a 240 VAC version of the AC driver PCB, just as for the fuser assembly. Although you replaced the fuser assembly (presumably with a good thermoswitch), it is not clear if you also checked or replaced the Fixing PCB (thermistor/sensor PCB), the Fixing Heater Safety PCB, and the fan. If not, these should also be checked. If none of these is the problem, check the DC Controller PCB. For the board locations, etc, see the assembly diagrams for the Canon SX engine, at the www.printerworks.com website. |
| QUESTION NO. P320-5: HP 890c printer, power supply ps006b-0101 is by Yokogawa. I need the name of 5pin ic and replacement. |
| That device is a Yokogawa 3627G, but this (discontinued) IC was custom-made for HP, and proprietary to them. I know of no generic replacement. You may need to replace the entire power supply. |
| QUESTION NO. P1116-9: Epson stylus 460 printer. I need information on an 8pin dil package Marked PS2561-2, circuit location PC1, in the power supply? Also where can I obtain a replacement? |
| PC1 denotes a photo-coupler, and PS2561-2 is a dual photo-coupler (optoisolator) IC made by NEC. The PS2561-2 dual device is listed by Mouser Electronics (www.mouser.com; cat. no. 551-PS2561-2) and Digikey (www.digikey.com; cat. no. PS2561-2-V-ND). The pinout and specs are in their respective catalogs, or in PDF format, from www.mouser.com/catalog/cat_607/81.pdf?CFID=10398503&CFTOKEN=13406968. |
| QUESTION NO. P914-2: Canon 3000 printer, the AC adapter most likely had a surge failure. The input fuse was blown, 2 diodes D2 & D3 part of the full wave bridge were shorted and zener diode ZD5 (markings Z200y 9-k) was also shorted. I need the identify of the zener. |
| Z200=ECG 5105A, NTE5105A,SK200V, 1N4193/A/B, 1N4358/A/B, 1N4435/A/B 1TA200/AB. It is 200 volt zener diode, 1W,5% tolerance. ECG has a great free downloadable semiconductor cross reference guide at www.ecgproducts.com. |
| QUESTION NO. P926-7: I am looking for refurbish center of matrix heads (part# 40100466-701) used on the NCR 7770 IPS printer. |
| Try Integrated Technology Services Pty Ltd (Australia) Cameron Graham cameron@i-t-s.net.au. |
| QUESTION NO. P830-9: What is the error message System error 1241 in HP Officejet 710 printer? |
| All the error cdes for the Officejet series can be found on the hp web site. |
| QUESTION NO. P820-6: Where I can find replacement for integrated 8 pines labeled fa5311? I need this to repair the power supply of the Okidata printer. |
| FA5311P is an SMPS Controller IC, from Fuji Electric Co. There is no cross for this IC, so try Fuji's North American distributor, Collmer Semiconductors (www.collmer.com), for the original IC. B & D Enterprises (www.bdent.com) might also be tried. |
| QUESTION NO. P1113-10: I need a source for the Sharp S21MD4V optoisolator /triac driver in the AC Power supply of an HP Laserjet III printer. The triac blew and one of the resistors was opened so I feel I should replace the driver IC also as a precaution. Cross to another chip would be OK. |
| Sharp's S21MD4V is a phototriac optoisolator, with V-isolation > 5KV, Triac Vbr = 600V, zero-crossing, trigger current < 15 mA. B&D Enterprises (800-458-6053; www.bdent.com) lists S21MD4V, but a cheaper equivalent is MOC3061 (or one of its MOC306x relatives). Digikey Corp. (800-344-4539; www.digikey.com) lists the MOC306x types. |
| QUESTION NO. P1010-10: Epson 1050+. I need the equivalent or replacement for 2SD1843. |
| B&D Enterprises (800-458-6053; www.bdent.com) is listing 2SD1843 itself, in inventory. |
| QUESTION NO. P918-9: Canon bjc-4400 printer has error writing to lpt1 and the carriage stops in the middle and does not return to its home position. Power light just flashes. |
| Replace the print head. If it is the head with color and black ink, change the whole assembly, not just the ink (BJC21e). |
| QUESTION NO. P89-3: HP dj890c printer, power supply 4602-60003 is dead. Fuse f1 blown, also Q1 blown. Need to id Q1, cannot read numbers-burnt. |
| On my HP DJ 890C bought in Denmark, Q1 is labeled K 2545. It is pretty hard to read even without it being burnt. |
| QUESTION NO. P629-6: Epson Action Laser 1000 printer, on the power supply, have a bad chip (mosfet ?) marked with logo SK M1041S 29 L. Where can I find a replacement? |
| The part is a Sanken Triac TM1041S-L which is a 10A 400V. You can find the specs at http//www.sanken-ele.co.jp/en/prod/semicon/thy/index.html. You can get the original from Derf International or you can find a suitable replacements with the specs. |
| Sanken's TM1041S-L and TM1041S-R are 400 Volt, 10 Amp Triacs. Yours sounds like TM1041S-L. If your supplier has none of the Sanken devices stocked, you might try ST Micro's BTA10-400C Triac. Mouser Electronics (800-346-6873; www.mouser.com) lists the BTA10-400C Triac. |
| QUESTION NO. P628-6: HP Laserjet SX series IID printer. I need a cross reference of the opto-thyristor (optocoupler with thyristor) TOSHIBA TLP741J. I need to change it in the AC Power Block due to error '50 Service'. |
| Toshiba's TLP741J is rated 600 Volts standoff, 4000 Vrms isolation, trigger current less than 10 mA (5 mA typical). The TLP741J device itself is listed by Digikey (800-344-4539; www.digikey.com) and B&D Enterprises (800-458-6053; www.bdent.com). Sharp's S22MD1V is an equivalent device. |
| QUESTION NO. P68-7: HP laserjet III printer gives error 13 paper jam when no paper is present. |
| See if you need to replace the cable from the Fuser to the DC Controller, p/n# RG1-0907-050. |
| QUESTION NO. P523-7: HP LaserJet IIP printer. Paper consistently bunches up right at OPC drum and jams. Have cleaned internal parts, still same symptoms. |
| Try checking the gears for the drum drive, on the right side. In the white gear/clutch assembly, see if the white gear looks like it twisted on its shaft. If you remove them, the inner white gear should rotate smoothly, with a one-way clutch action. The outer gear also rotates one way, and a spring action limits rotation. Worn or damaged gear assemblies need replacing. The drive gear assembly is RG1-1776 and the drum drive assembly is RG1-1777. |
| QUESTION NO. P512-1: After an Epson Stylus 500 inkjet printer has been sitting idle for an extended period of time, what is the recommended solvent to use to unclog the printer heads? Specifically on Epson style where the head is not built into the cartridge? |
| I have an Epson Stylus Color 800 (head not built into cartridge) and even if my printer is on 24h/24, once every 4 months I clean the heads and check the pumps. For better results, do this before replacing both black and color cartridges. Open printer (unscrew screws). Note (felt tip pen) position of the blocking devices on the ends of the main axle where the caroussel slides. Unscrew blocking devices and remove head height adjustment lever (blue, on the left end -> 0 / + marks). Extract axle. Manually move the lever (downwards) which blocks the heads assy from sliding. Extract heads assembly. Clean with rubbing alcohol (cotton tips) AROUND the heads. There will be a lot of clogged ink. Clean the surface of the heads if needed also with alcohol and cotton tips. Check pumps and clean the felt and rubber band where the heads rest. Refitting is reverse of removal. Pay attention to the marks on the blocking devices of the axle, as they give the height of the print heads over the paper. Don't forget the lever -) |
| The treatment is to inject a few cc's of a water dilution of a non-ionic detergent called Surfynol 465 into the head via the ink supply port, using a syringe and tube, and allowing this to soak for a day or so. Surfynol 465 is manufactured by Air Products (www.airproducts.com/surfynol/request/html); it is a non-ionic detergent similar in detergent properties to Nonidet P-40. This is only for print head blockages due to dried-up Epson ink; blockages due to large particulates (such as might be found in third party inks), that are clogging the inkjets, usually won't respond to this process. |
| Remove the printer carriage and stand it in a dish of warm water for about 15 minutes, or enough time to clear the ink. Make sure you only use enough water to cover the heads. |
| QUESTION NO. P43-2: Okidata 320 Turbo printer. Is there a Space motor alignment sequence? When I replace the space motor or remove them to clean, it takes a lot of taking off and putting on to keep it from slamming into the left side and grinding. |
| First, try to replaced backup roller/holder assembly (unscrew the space motor, that backup roller attached to the carriage frame) Okidata p/n 40917101. When you reinstall the space motor, make sure that you push the space motor toward the carriage frame and then tie up screws,so the space motor gear engage to space rack properly. |
| QUESTION NO. P228-4: Tif Model 1600 Automotive computer printer that had the power cables hooked up backwards. I need to find a source for part # IP 323AV-05. It is dead shorted. ECG, MCM, Dalbani nor anyone else I tried had this part. What is it and is there a sub? |
| IP323AV-05 is a 5 Volt, 3 Ampere linear voltage regulator, TO-3P style package. It is meant to be a plastic-case version of the LM323K regulator (metal TO-3 can). DERF Electronics Co. (www.derf-intl.com) has stock in this IC in the US, but they may have a large minimum order/quantity requirement, since they service corporations. In the UK, try Keytronics (www.keytronics-uk.co.uk); ask for the plastic-case (TO-3P) version of LM323. Another, possibly cheaper, alternative, would be to install a TO-3 transistor socket, and use a standard LM323K. Mouser (800-346-6873; www.mouser.com) and Digikey (800-344-4539; www.digikey.com) stock both LM323K, and TO-3 sockets. |
| QUESTION NO. P218-8: HP DJ890C printer is dead. I need the value of U1 in power supply p/n c4602-60003 Model ps006b-0101. |
| ps001b-0101 U1 is 3842B, check application circuit. |
| QUESTION NO. P16-9: HP LaserJet 2/3 printer. Where can I source replacement "anticlick" pads that go under the solenoid on the solenoid/sensor pcb (paper control pcb) RG1-0719 or RG1-2549? |
| HP laser printer parts are available at PC Service Source 1-800-727-2787 http//www.pcss.net/. They sell service manuals and will fax you parts manual pages. Great company. |
| This applies to all Canon SX engine printers, HP II(D)/III(D), all Canon LBP-8, DECLaser 2x00, Apple Laserwriter II, QMS 8xx, etc., etc. Instead of cleaning off the old sticky "anticlick" pads on the paper control board solenoids, leave them in place and put a strip of black electrical tape over the pads, this way you still get the noise cancelling, and it is cheap and fast. I have used this fix for over 6 years and thousands of pcb's and never had any returns. |
| QUESTION NO. P1227-1: Espon Stylus Color IIs printer that does not "print" with the color or the b/w ink cartridges. Printer cartridge and head move along the paper normal but does not put out any ink. The customer had previously used a "non-brand" ink cartridge on printer. I suspect the printer heads. |
| Epson printers heads will only take original ink cartridgre. New heads cost around gpd 66.00, service manual gpd28.00, handling charges gpd 10.00. Available from Unicomp Ltd, Bourne Est,Borough Green,Kent TN15 8DG tel 01732-780303 fax 01732-780643. Service manual needed to adjust new software for new heads. |
| QUESTION NO. P1130-8: Okidata 120 GE5250E dot matrix printer. It uses a 6-pin DIN plug to interface a computer. Is it possible to change the plug to a standard printer plug? The DIN plug is mounted to a removable PCB, electrically connected to the main board by a 30 pin connector. |
| This printer was especially adapted for the Commodore 64/128 computers. Not only would you have to replace the connector but also the whole interface circuit and the printer's firmware. Not a viable option considering the age of the machine. |
| QUESTION NO. P1124-1: Oki ML-520 printer. When printing it will progressively move the print across the page from left to right, a few characters at a time. We have tried replacing the space motor, sometimes this helps but a lot of the time it does not. This problem is most noticeable when doing a menu print. |
| Have you checked the data cable from main logic PCB to print head? This can sometimes cause this fault. Also the little nylon backing roller which sits behind the rack may have a worn flat spot. This can also cause this fault. |
| QUESTION NO. P1116-7: HP laserjet3 printer has error 50. Usually I replace the triac or the two resistors connected in the ac power module. This does not solve the error. I have four other power modules with same problem. |
| Error 50 implies a Fuser error. Besides faults in the AC power module, in the fixer assembly, the fuser lamp itself, or the in-line thermal fuse, or the thermo-switch, can go open, so check for continuity (low-ohm's) through these. Sometimes, unfortunately, the DC Controller boards on the LJ 3's can fail and give a type 50 error, and need replacing. But before replacing, first check the two cables to the DC controller, at J206 & J208, and the solder on the connectors. However, if your problem was localized to the AC power board, after all, then besides the Triac and those two resistors, check the triac driver optoisolator IC, and look for any bad solder on the connectors. Also, if you see any of those bright green Sony electrolytic caps anywhere, check if they leaked. If so, you need to clean up well under them, repair any board damage, and replace the cap. To clear a type 50 error from the machine, you must power-off for at least 15 minutes. |
| QUESTION NO. P1022-7: HP Laserjet 4Plus Printer. After a few print-outs a paper jam occurs. The paper gets halfway into the fuser and shrinks due to what is probably a too high fuser temperature. I do not think the temperature sensor is the cause. Can it be the DC controller board? |
| The rollers in the paper (exit) delivery assembly can go bad with time. If these are bad, it is easiest to replace the entire assembly, RG5-0886-070, but you might save a bit of money just replacing the upper and lower shaft rollers, RF5-1076 & RF5-1077, and the little delivery rollers, RB1-2299. Get the part details for your model at the www.printerworks.com website. |
| QUESTION NO. P1019-1: Epson DFX-5000 printer beeps 10 times when power is turned on and then stops with only the power light and the top of form light on. Print head never moves. I have checked all connections and cables. |
| Start by disconnecting the printhead. If the head now moves on power up you have to check Q5 and Q6 (2SD1395) on ORIMA board (Y475204000). Replace them if needed and replace the printhead. Do not replace the printhead unless you confirm that Q5 and Q6 are OK. If Q5 and Q6 are not OK and you replace the printhead, you will blow the new printhead. |
| QUESTION NO. P107-9: Epson stylus color 400 printer. I need substitute integrated circuit lb1845 for the control of the motor of passages of paper load. |
| Sanyo's LB1845 is listed by B&D Enterprises International, 800-458-6053 (www.bdent.com). If required, B&D can ship internationally, see that webpage for details. |
| QUESTION NO. P101-9: HP deskjet 695c printer is used with a webtv unit. If I print out a front page only, it prints out black and color with no problem. But if I scan more then one page, it scans very fast and the print out of anything in black, is very small and looks like dots and lines and any color other than black prints normal. |
| I am using a 694C, you may want to check the properties of your printer cache. Make sure that the maximum amount of space is available to store the info before printing it. Not sure how much cache the Web TV unit avails. |
| QUESTION NO. P826-5: HP Deskjet500c printer performs the selftest all right, but when it is hooked up to the computer, it will not print. If I try to print something, it just a puts the cartridge in the "change cartridge" position, or b outputs the proper number of characters (in dos) but they are not what they are supposed to be. For example, I printed the word "test" and it came out @df&" or something similar. I think it is a language problem, but I need to know first what ALL of the dip switch settings are, especially the left four. |
| Suggest downloading the correct driver for your HP500. Make sure the english version is selected and the proper suffix is used in selecting the driver. It should still be available from the HP web site. |
| Try a new printer cable. I have had that problem with a "leaking" printer cable. |
| QUESTION NO. P62-10: Tandy DMP 132 260-2814 printer. Looking for information on changing the jumpers to convert this unit to IBM compatible. I was able to do this on another Tandy model by adding jumpers. |
| http//support.tandy.com/ go directly at this place, you will find what you want, all about tandy product, pinout, shem, driver, etc. |
| QUESTION NO. P519-4: Epson dfx500 when pressing load button paper is feeding correctly, then unloading backwards then it continually repeats the process. Have tried sensors. |
| Clean and put a few drops of oil on the junction of the carriage adjustement shaft and the printer frame (it adjusts the printhead to the paper thickness). Also clean the gear that turns that shaft on the left side of the printer. |
| QUESTION NO. P420-1: What is K2388? It is used in HP 820CSE printer. |
| K2388 is a Toshiba FET, 2SK2388, rated 600 Volts, 3.5 Amp, Rds[on] < 2.2 ohms at 1.8 Amp, in an insulated TO-220 case. |
| QUESTION NO. P311-1: EPSON LQ1170 dot matrix printer. When turned "ON" the printer beeps five times then only the power "LED" is "ON" and all the rest not functioning. |
| Five beeps is a carriage error. Make sure the print head will move freely with the power off. If not, clean and lube the shaft with some light oil. Check carriage motor windings for 5 ohms each. Contacts are pin, 1=cra, 2=cr-a, 3=crb, 4=cr-b, 5-common. This info is from a Epson set of CD's. |
| QUESTION NO. P318-6: HP Deskjet 682c. Printer clicks during print. The bar the print head rides on is causing problem. When I clean rod printer works ok for a couple of jobs and then starts clicking again. Should rod be lubed and if so with what? |
| The print shaft gets gummed up on all this type of printer. After you clean it wipe, some #10 or other lightweight oil on it and move the head assy back and forth a few times to spread it around. |
| QUESTION NO. P23-3: HP 660C deskjet which makes rather nasty "grinding" noises during its calibration phase at the "head cleaner" mechanicsm. The steppr motor does not appear to turn but instead oscilates slightly back and forth. I have check for binding and other mechanical problems, but have found none. I am a bit blind as to how the head mech locates "home" and whether to suspect the stepper motor on the cleaner mech, the driver IC for that stepper motor, or whether it is interrelated to the print head itself. |
| Time to get diagnostic software and service info from H/P or take it to an authorized H/P servicer. |
| We had a similar problem with two HP690C deskjet printers. We lightly lubricated the bar which carries the print mechanism. I am not sure if this is recommended by HP. |
| This applies to all the HP inkjets with a plastic tracking strip, pretty much anything after the 5x0 series. Remove the main cover from the printer, to give yourself some room to work, there are usually 4 slots on the bottom (two to a side) that a small flat screwdriver will fit into to allow you to move the locking tabs out of the way, and lift off the cover, be careful of the mylar cable to/from the control panel. There will be a flexible metal arm on the (usually) right side of the framework that pulls the plastic tracking strip tight, press this towards the center of the printer and carefully remove that end of the strip, then the left end and pull it out of the printer (mark one end/side so that you don't reverse or flip this strip when you put it back). Clean this strip with a soft cloth or tissue paper soaked with water, to remove the ink that has coated it, and then replace the strip. Note this strip fits thru a slot on the back side of the carriage assembly, between the emitter and detector of an opto-coupled interrupter, this is how print head tracking/positioning is accomplished on these printers. |
| QUESTION NO. P115-10: What does Error code "53 unit one" for an HP LaserJet 3P mean? |
| Error Code 53 Unit 1 = Replace memory card (top). |
| This information is From the Hewlett Packard WEB site: Message 53 Error Unit X HP LaserJet IIP, IIP+, IIIP Printers 53 Error Unit 1 HP LaserJet IIP, IIP+, IIIP Printers. An error was detected on the optional memory board in the indicated slot. Verify that the correct revision level and memory part # has been installed in the printer. On the HP LaserJet IIP, IIP+, and IIIP Printers, Unit 1 and Unit 2 refer to the top and bottom slots, respectively. |
| All HP error codes can be found at the following URL http//hpcc923.external.hp.com/cposupport/printers/support_doc/bpl04079.html. |
| QUESTION NO. P17-10: Laserjet IIIp printer gave an error code 52. Instead of trying to troubleshooting for the fault, I swapped the cards with an old laserjet IIp. The IIp then worked fine until one day the fan did not turn and there was a burnt smell. After cleaning the VR for tone intensity, the printer worked for another day and suddenly came out with error 52. Now both printers gave the same error code. |
| The Scanner Cable (PN RG1-0908-000CN) connects J202 and J203 of the DC Controller to the Laser Scanning Assembly. When the scanner cable (or connector) is defective solid horizontal lines may appear on the printed output. Other symptoms may be intermittent or continuous 41 ERROR, 51 ERROR or 52 ERROR. The 52 ERROR may accompanied by a high pitched "whine" from a runaway scannor motor. I have had to change the scannor motor to fix the 52 ERROR problem before. |
| QUESTION NO. P122-8: HP-660C printer which, on power up, slams all the way to the left and continues to oscillate against the left stop as long as power is applied. |
| Possible defective or dirty end sensors or associated circuits. |
| QUESTION NO. P1025-10: Where I can order i.c. STK67015H-SL for NEC P6300 dot matrix printer? |
| B & D Enterprises (800-458-6053) lists STK67015H, but at $49 apiece. |
| QUESTION NO. P103-4: HP laserjet 2p. After the self test, it comes up with CODE 12 open or no ep. I have checked all latches and the door and found nothing wrong. (if I power on off on off it will eventually work). |
| Try a new 10ufd cap on the small circuit card that the sensors and density adjustment connect to. This cap will probably have a high esr. |
| The 12 error is this printers weak point. You can either replace the density board (about $15.00 ) or you could try cutting jumper JP701. The circuit is an or function for fan failure and the two sensors located to the right. But the jumper cut always works, it eliminates the fan failure circiut, but try the electrolitic cap fix. |
| QUESTION NO. P731-7: Epson actionlaser II. Error code E0003. |
| I have figured it out. Fuser error. |
| QUESTION NO. P415-4: Epson Action Laser 1000 with an intermitt problem.the leading edge of the paper stops as it is about to enter the fuser. I have checked all the paper sensors and they are good. The fuser also seems to be good. |
| I have had the same problem on 3 seperate Epson 1000's that were all solved by replacing the EP cartridge. |
| QUESTION NO. P34-5: Epson DFX-5000 printer that has a paper out problem. When I load the paper on the front tractors it will feed properly and go on line. After starting the printer, it will run for about a quarter of the page and go off line. The printer will then default to the rear tractor feed. We have replaced the paper out sensor on the front tractor feed and the TOP of form sensor which has not corrected the problem. |
| I had a very similar problem on a Canon. I am unfamiliar with that Epson model # but the Canon was an ink[bubble] jet. The problem turned out to be a bad ink cartridge believe it or not. |
| Epson DFX 5000 and 8000 printers have very touchy sensors. Try the tractor select sensor aswell as the paper sensors on both tractors. The interlock switches can also cause various faults. Make sure all sensors toggle properly. |
| QUESTION NO. P1016-7: Does anyone know where I can purchase new or rebuilt HP Laserjet fusers for models 2 or 3 or 2D or 3D? |
| Answer for US sources: You need fuser assemblies
for Canon SX/RX engines; part numbers starting with RG1-0939 (RG1-0940 for 220 V. machines). Try these suppliers: The Printer Works, http://www.printerworks.com/index.html, 3481 Arden Road, Hayward, CA 94545 USA 800-225-6116; email: info@printerworks.com internationally: +1 510 887 6116; fax: +1 510 786 0589 Parts Now! Inc., http://www.partsnowinc.com/default.htm Headquarters: 3517 W. Beltline Hwy. Madison, WI 53713 USA 800-886-6688; FAX: 608-276-9593 Southeast Office: 1085 SW 15th Ave. #5 Delray Beach, FL 33444 800-RG1-0939 (!); FAX: 561-279-9122 |
| Answer for UK source: An excellent exchange fuser service is available from Unicorn on (+44) 1732 780303. The price is usually around £40. |
| QUESTION NO. P930-9: Panasonic kx-p1123 printer that the load / park feature does not work and paper out light does not go out. I cannot find the paper out sensor to cheak it. |
| I haven't worked on an 1123, but if it is anything like an 1124 than you will have to remove the print mechnism and turn it over. You can't miss the paper out sensor, look for a spring that holds the lever in place it likes to fall out. |
| QUESTION NO. P91-1: Does anybody know the temperature rating for the thermal protector on the HP Laserjet III printer fusing roller? |
The fuser assy temperature is 165 degree C in the
standby mode and 180 degree C in the printing mode. The thermoprotection switch opens when
the temperature reaches 210 degree C. The following conditions result in a fusing
error:
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| QUESTION NO. P828-7: NEC superscript 660i laserjet fusing lamp (230V,330W) can it be replaced with HP laserjet III fusing lamp that uses 230V, 570W? |
| DON'T DO IT. Unlike the case with semiconductors,
that lamp's power rating represents the LOAD. So, the printer's power supply and SSR would
need to provide almost double the amps, and the lamp would put almost double the rate of
heat output into the fuser. Assuming it doesn't blow the power supply or relays, it'll shorten their life, or possibly blow the thermal units in the fuser assembly from the extra heat. Worse, there's also a safety issue here. That printer's UL (or whichever) certification was based on its 330 W. lamp; this swap would nullify that certification as surely as using a 200 Watt bulb in a 100 Watt-rated fixture. Sometimes the original fuser lamp fails not from old age, but because a fault in the power supply or a defective thermal regulator circuit burns it out with unregulated power. If such a fault exists, or if the extra stress from the new lamp causes this kind of fault, there is a danger of causing a fire. In most places, you would be considered liable for the resulting damage to your customer's office/home, even if he agreed to the swap beforehand! DON'T DO IT. |
| QUESTION NO. P826-3: HP Laser IID that constantly reads jam error code 13. As far as I cna see there are not jams in the unit and it appears to be a possible sensor problem. It appears that the unit warms up and sends the paper into the machine but stops about 4 inches during the feed - so signal is occuring during the startup. I think its the infeed sensor located next to the infeed roller shaft. I went through the parts location service and it cost $30 for a photosensor but I am not sure its the problem. |
| ANSWER1: Follow troubleshooting paper jams for the 2d or 3d if duplexing is not involved. For TRUE Early jams, check the pickup rollers for wear and registration area for obstructions. If the leading edge of the paper got up to BUT NOT INTO the fuser Check the fuser arm gear (RG1-0921) for broken teeth. If the leading edge of the page least started into the fuser or beyond, Check the 14 tooth Gear (RS1-0132) also check the gear on the Delivery Coupler (RG1-0967) Replaced gear as needed. For Duplex jams, proceed with these steps Ensure duplex is turned on at the control panel Run an "05 Self Test (single sheet)through the duplexer to identify where the leading edge is when jammed. Most often duplex jams are caused by either 1 a worn paper alignment roller in the lower refeed section 2 an obstruction above the duplex feed rollers just below registration. |
| ANSWER2: The Laserjet 2 and 2D have problems with loose connectors on the D.C. controller (on the bottom side of printer) of a worn clutch on the pickup roller or the solenoid on the paper controller sticking open. |
| ANSWER 3: I agree to ANSWER 2, but maybe his
answer was a little short. In general, Your HP IID is using the same basic
"engine" ie mechanically system as the Canon LBP8-II and the later models HP
IIID / III and Canon LBP 8 III / IIIT /IIIR. The HP "D" models are twin cassette
with duplex function, as goes for the Canon "R" models. The Canon "T"
models are twin cassette without the duplex unit. In general all af these models suffer
from the same problems when paper jams occur. Allways check / clean or replace the pickup
roller. If this doesnt help, in most cases it is the mechanical couplings on the shaft
that is the problem. Make it easy for Yourself and replace the whole shaft kit, also
called "upper" or "lower" "pickup roller assembly". This
fixes the problems in over 90 % of the cases IF you have checked for the problems listed
in ANSWER 1. When You order a pickup assembly, You get a brand new shaft with coupling and
pickup roller. This will keep Your printer running for many ye! ars to come. Another problem is that the "anticlick" pads under the solonoid 's get sticky. This normally results in a printout that starts to close to the top of the paper. Clean the sticky stuff off, and replace with another thin pad to reduce solonid noise. |
QUESTION No. P430-5: Has anyone found a source for newer HP Deskjet parts(ex:the 650C, 500C, 850C, etc..). We have tried HP and they say they are depot only items. Also we have tried PCSS and no luck. |
ANSWER 1: There is another source for HP Deskjet parts but it is in England. The company is Parts First and maintains a large inventory of HP spares, including some for the printers mentioned in the question. There are also useful techtips for deskjet and laserjet repairs on the webpage. The webpage for Parts First is at http: //www.partsfirst.co.uk/ and the downloadable file with their inventory of HP printer parts and accessories is at: http: //www.partsfirst.co.uk/parts.html Their contact information is: Parts First PO Box 251, Isleworth, Middlesex TW7 7SQ ENGLAND. Tel: 0181-568 4747, Express Order Line: (0500) 477278, Fax: 0181-568 7044, International Tel: +44 181 568 4747 International Fax: +44 181-568 7044. |
| ANSWER 2: I have had some success getting parts for HP and Canon printers from Parts Now! .Their phone number is (608)-276-8688, fax is (608)-276-9593, web site is www.canonparts.com . |
| ANSWER 3: Check out http//www.depot-america.com Depot America, a fourth party repair company specializing in the desktop printer environment, offers repair or advance exchange on thousands of printer parts and subassemblies including fusers, logic boards. |
QUESTION: Where I can obtain Schematics for Hewlett Packard Deskjet 500 series printers? |
Tech & Service manuals can purchased from HP Parts at 1-800-P227-8164 HP part number for Service manual is C2106-90021. HP part number for Tech manual is C2170-90099. With these two manuals you should have the information you want to service these units. |