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How to fix error E-91 or E91 on Epson printers


Error code E-91 means the waste ink counter is full. It had to be resetted in order to fix the problem.

For some Epson printers, the software SSC Utility can reset the counter.

But for the new Epson printers, you have to buy the software (on ebay for example or EpsonReset.com):

Epson Artisan series Artisan 700, Artisan 725, Artisan 800, Artisan 835, Artisan 837, EP-901A

Epson B and BX series B1100, B1110, B300, B300DN, B310, B310N, B40W, B42WD, B500DN, B510, B510DN, B510N, B518DN, BX300F, BX305FW, BX310FN, BX525WD, BX600FW, BX610FW, BX620FWD, BX625FWD

Epson Stylus C series C20, C40, C41, C42, C43, C44, C45, C46, C58, C59, C63, C64, C67, C68, C70, C76, C77, C78, C79, C80, C82, C83, C86, C87, C88, C90, C92, C93, C94, C95, C97, C98, C99, C110, C120, C480, C560, C660, C670, C680, C777, C880, C888

Epson Stylus CX series CX1390, CX1500 ,CX1600, CX2800, CX2900, CX3100, CX3200, CX3300, CX3400, CX3500, CX3600, CX3650, CX3700, CX3800, CX3805, CX3810, CX3900, CX4000, CX4100, CX4200, CX4500, CX4600, CX4700, CX4800, CX4850, CX4900, CX5100, CX5400, CX5500, CX5505, CX5700, CX5900, CX6300, CX6400, CX6500, CX6600, CX6900, CX6900F, CX7300, CX7400, CX7450, CX8300, CX8400, CX8450, CX9300F, CX9400F, CX9500F

 Epson Stylus D series D68, D82, D88, D92, D120

Epson Stylus DX series DX3800, DX3850, DX4000, DX4050, DX4200, DX4250, DX4400, DX4450, DX4800, DX4850, DX5000, DX5050, DX6000, DX6050, DX7300, DX7400, DX7450, DX8400, DX8450

Epson Stylus EP series EP-801A, EP-803A, EP-901A, EP903A

Epson Stylus K and L series K100, K200, K300, L100, L200, L300 Epson ME Office Series ME2, ME20, ME30, ME32, ME-B40W, ME70, ME80W, ME82WD, ME200, ME300, ME320, ME340, ME360, ME510, ME520, ME530, ME535, ME560, ME570, ME600F, ME620F, ME650N, ME650N, ME900WD, ME960FWD, ME1100

 Epson NX Series (See TX Series) NX100, NX110, NX111, NX125, NX127, NX200, NX205, NX210, NX215, NX220, NX300, NX305, NX310, NX315, NX400, NX405, NX410, NX415, NX420, NX430, NX510, NX515, NX620

 Epson PictureMate (PM) Series PM100, PM210, PM215, PM225, PM235, PM240, PM250, PM260, PM270, PM280, PM290, PM310, PM500, PM-A820, PM-A890, PM930C, PM-A950, PM-A970, PM970C, PM-G800, PM-G820, PM-D800, PM-3500C, PM,G4500, PM-G5000

Epson PX series PX600W, PX600FW, PX640, PX650, PX659, PX660, PX700W, PX700W, PX720WD, PX800FW, PX800FWD

Epson R series R200, R210, R220, R230, R240, R245, R250, R260, R265, R270, R275, R280, R285, R290, R295, R300, R310, R340, R350, R360, R365, R380, R390, R395, R520, R800, R1380, R1390, R1400, R1800, R1900, R2400, R2800, R3880, R4880, R7880

Epson RX series RX420, RX425, RX430, RX500, RX510, RX520, RX530, RX560, RX565, RX580, RX585, RX590, RX595, RX600, RX610, RX615, RX620, RX625, RX630, RX640, RX650, RX680, RX685, RX690, RX700 297

Epson S series S20, S21, S22

Epson Stylus Photo series: P50, P60, 870, 890, 1270, 1290, 1390, 1400, 1410, 1420, 2000P, 2100, R7880

Epson Stylus Pro Stylus Pro 7000, Stylus Pro 9000, Stylus Pro 9600

Epson Stylus SX series SX100, SX105, SX106, SX110, SX111, SX115, SX117, SX125, SX130, SX200, SX205, SX210, SX215, SX218, SX230, SX235, SX400, SX405, SX410, SX415, SX420W, SX425W, SX430W, SX435W, SX510W, SX515W, SX525WD, SX550W, SX600FW, SX610FW SX620FW

Epson T Series T10, T11, T13, T20, T20E, T21, T22, T23, T24, T25, T26, T27, T30, T31, T33, T40W, T42W, T42WD, T50, T59, T60, T80W, T1100, T1110

Epson TX series TX100, TX101, TX102, TX103, TX105, TX106, TX109, TX110, TX111, TX115, TX116, TX117, TX119, TX120, TX121, TX125, TX135, TX200, TX205, TX209, TX210, TX219, TX220, TX230, TX235, TX300F, TX320F, TX400, TX405, TX408, TX409, TX410, TX415, TX419, TX420, TX420W, TX510FN, TX550W, TX560WD, TX600F, TX600FW, TX600W, TX610FW, TX620FWD, TX640, TX650, TX659, TX660, TX700W, TX700FW, TX720WD, TX800W, TX800FW, TX820FWD

Epson WorkForce series 30, 40, 42, 60, 310, 315, 323, 500, 600, 610, 615, 620, 625, 630, 635, 1100, WF-7011, WF-7015, WF-7511 WF-7515, Pro-WP-4511, Pro-WP-4521, Pro-WP-4530, Pro-WP-4540

D'autres imprimantes Epson: L100, L200, P50, P60, T50, T60, Pro 7000, Pro 9000, Pro 9600

Comments

What about the Epson xp-434 Expression all in one? It is not on the list. After putting new cartridges in the unit I printed several docs that all came out blank.I did this several times before realizing the paper setting on the computer was different on the printer. Once I set them both to the same paper setting,the change ink error message has prevented further printing. The cartridges are all full but the
counter is saying otherwise. What can I do?
Jann Lassalle said…
Hi Elizabeth,

Try here the solution 1 (several times if necessary):
http://fix-your-printer.blogspot.fr/2012/04/unknown-cartridge-message-on-epson.html

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