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Printer and Photocopier | Dot matrix printer operation | Daisy wheel printer operation | Ink-jet printer operation | Inkjet types | Response times of resistance heater elements in ink jet printers | How many colors can an ink-jet printer produce? | About inkjet printer ink | Laser printer and photocopier operation | Laser printer operation summary | Cleaning and Handling of Photosensitive Drums | Laser printer maintenance and repair | Discussion on laser diodes in laser printers | Types of toner | Wrong type of toner? | Dot Matrix and Daisy-Wheel Printers | Print head repair | Ribbon does not advance | Print head stepper | Motor driver blows fuses | Compaq Pagemarq printe | Epson FX-286e printer problems | Paper debris clogging Epson LQ-570 | IBM X-24 Proprinter print head jumps around | NEC P5200 Printer problem | OKI Microline 391 Elite Problem/Error | Star SD15 printer self-test problem | Ink-Jet Printers | HP DeskJet problems | Types of HP ink-jet technology printers | HP DeskJet repair | HP ThinkJet printer | HP DeskJet paper feed problems | Cartridges drying out on early HP DeskJets | HP DJ340 shuts off during printing | HP DeskJet 560C Detailed problem description and possible solutions | Cartridge detection on HP DeskJets | HP Deskwriter 660 printer problems | Little plastic parts in HP DeskJet printers and HP service policies | HP DeskJet 500 repair | HP DeskJet 560C - stripping gear sounds and more | HP600C DeskJet produces too much black ink | HP DJ power supplies/wall adapters | HP 600 series DeskJet printer smears even with new cartridge | HP DeskJet 692C - Random lockups | HP 820Cxi DeskJet Problems | HP DeskJet 1200C power supply repair | HP PaintJet problems | Unclogging non-HP inkjet printers | Intermittent light/no print from Canon BJ330| Canon BubbleJet information | Canon BubbleJet printers not printing after cleaning | Canon BJC 600 problems | BJC 600 print head error - lights flashing | Epson Stylus Color II error light problems | Cleaning Epson inkjet print heads | Cleaning totally clogged colour head in Epson Stylus Color 500 | Epson Stylus 800 print quality | Epson Stylus Color 800 printer seems to operate but no printing | Epson Stylus Color 800 clogged print head | Non-use and refill of BJC-620 ink cartridges | Inkjet Printer Cartridge Type and Reliability | Ink cartridge expiration dates | Dead Cannon, Compaq, HP, and similar power supplies | Laser Printers | On-line laser printer resources | Vacuuming laser printer toner | Refilling toner cartridges | Cleaning laser printer optical path | Laser printer drum damaged by extended exposure to light? | Repeating images on laser printer | Black evenly spaced lines on laser printer or copier | HP LaserJet | Disassembly and reassembly of HP LaserJet II and III | Disassembly and reassembly of HP LaserJet 4 | Testing the erase lamps on an HP LaserJets | HP LaserJet error code 51 | HP LaserJet I fuser swapping | HP LJ Series II bad bearing noise | HP LaserJet II just dies and no sign of power after a short while | HP LaserJet II with dark bands on first page | HP LaserJet II output jam | HP LaserJet II won't go past 'warm up' | Totally blank printout on laser printer or copier | Bearing replacement on HP LaserJet II to fix error code 41 | HP LaserJet series II - error code 50 Service and clicking | Notes on HP LaserJet II error code 50 | HP LaserJet II - Top of the line printing shifting in multipage printing | HP LaserJet II bad bearing sounds | HP LaserJet II fuser overheating | HP LaserJet II triac replacement | HP LaserJet Series II intermittent | HP LaserJet IIP printer error code 12 | HP LaserJet IIP with 12 Open or no EP error | HP LaserJet IID Error 13 | HP LaserJet IIP and LaserJet series 2 error code 52 | HP LaserJet II scanner | HP LaserJet IIP error code 51 | HP IID error code 50 | HP LaserJet IIP+ error code 50 | HP LaserJet IIP - 52 error | HP Laserjet IIP error 52 - chip replacement | Laserjet IIP PS board | HP LaserJet III problems | Smudged vertical line on HP Laserjet III | Shifted print on HP LaserJet III | HP LaserJet III powers on but appears dead | HP LaserJet III cold fuser | HP LaserJet III paper jam | HP LaserJet III paper feed problem | HP LaserJet III error 50 | HP LaserJet III error code 50 | Paper jams on HP LaserJet IIIP | HP LaserJet IIIP power up problems | HP LaserJet IIIP - error code 52 | Replacement for top output roller on HP LaserJet IIIP | HPLaser Jet IIIsi - 'User Maintenance' message? | HP LaserJet 4 - intermittent error code 50 | HP LaserJet 5L grabbing more than one sheet of paper | More on HP LaserJet 5L paper feed problems | HP LaserJet 5 SIMM codes | HP LaserJet random behavior - no ground | HP LaserJet partial print problems are scanning or logic | LaserJet IIID paper not picked up correctly | Laserwriter LS | Apple Laserwriter I/O | Apple LaserWriter and LaserWriter Plus paper jams | Apple LaserWriter prints double/repeated images | Apple LaserWriter IIg runaway scanner never stops | Apple Laserwriter IINT error codes | Apple Laserwriter IINT 'clicks' with intermittent fuser error | Diagnosing a blank vertical strip problem on Apple Laserwriter IINT | Upgrading Apple LaserWriter to LaserWriter Plus | Toner All Over Paper on Brother Laser Printers | Resetting "REPL.DRUM" error on Sharp JX-9460 | TI MicroLaser Plus laser printer reports 'Main Motor Err' | Fuser problem/printer parts | Swapping fuser parts | Panasonic KX-P4410 CHNG DRUM error code 027 | Panasonic 4420 laser printer error code E31 | Copy counter fuses | Laser Printer info | Strange running time meter/copy counter | Laser Printer prints heavy on one line about 2 inches from bottom | Image tilted/skewed/crooked on old IBM laser printer | Fuser Roller collects toner on laser printer | Okidata printer that's streaking | First page smudges on OKI OL400 | Resetting 'Replace Drum' message on OKI OL400 | Laser printer test equipment | Repair notes: HP-IIP, HP-IIIP, Apple Personal Laser Writer | Laser printer repair | Repairing plastic paper feed strip in Canon PC10, etc. or CX laserprinters | Photocopiers | Copy problems | General image quality problems | Diagnosing 'blank copy' problems | Copies too dark | Copies too light | Previous copy doesn't erase from drum | Copy quality degrades with use | Copier error codes | Canon PC25 copier problems | Problems with Ricoh copier | Toner sensors? | Gray tinge on Xerox 5260 Copier | Streaky copies | Toshiba parts | Canon PC20 cold fuser | Broken Sharp Copier | Resetting Sharp Z-25 copy count | Sharp SF-71 copier will not reset | Sharp SF-7100 copier drum replacement | General Problems | Panasonic 1124 power supply problem | Cannon LBP-8 A1 Printer 40 and 22 errors | Brother IntelliFax 950M transmits black messy lines | Hewlet Packard LaserJet FAX (HP C1740A) | Paper sense problems | Cleaning the fuser roller | Streaks on laser printer output | HP plotter communications problems | Okidata FAX machine - Printer Alarm 4 | Packard Bell laser printer | Printer, copier, and Plotter | HP LaserJet parts | Laser printer cartridge rebuild info | Printer parts | HP DeskJet Parts | Canon information | Epson printer switch settings | Hewlett Packard information