Actually--rereading this, why didn't they start with the encoder wheel and encoder sensor? Unless new ones come with the transmission.
Actually--rereading this, why didn't they start with the encoder wheel and encoder sensor? Unless new ones come with the transmission.
yeah not totally familiar with this HP line... but the Epsons I work on, if it isn't the head... more likely paper motor or just a calibration issue. out of the 10 calls I have had MOST times it just needed to be calibrated.
ALSO banding can appear due to the QUALITY setting and media used. a 'DRAFT' setting is usually the problem if it isn't in HIGH QUALITY setting.
Sorry to be late to the game here. Let me ask my contact at HP about the skipping. I don't think it has anyting to do with the carriage. I'll post back when I get some info.
Kiran
As far as what printers your scanner supports, assuming it's the HD Scanner CQ654A, this is a list of the supported printers from the product brochure:
C7770B HP Designjet 500 42-in Printer
C7770C HP Designjet 500ps 42-in Printer
C7770F HP Designjet 500 Plus 42-in Printer
CH336A HP Designjet 510 24-in Printer
CH337A HP Designjet 510 42-in Printer
C7779B HP Designjet 800 24-in Printer
C7780B HP Designjet 800 42-in Printer
C7779C HP Designjet 800ps 24-in Printer
C7780C HP Designjet 800ps 42-in Printer
C6074B HP Designjet 1050c Plus Printer
C6075B HP Designjet 1055cm Plus Printer
Q1273A HP Designjet 4000 Printer
Q1274A HP Designjet 4000ps Printer
CM765A HP Designjet 4020 42-in Printer
CM766A HP Designjet 4020ps 42-in Printer
Q1271A HP Designjet 4500 Printer
Q1272A HP Designjet 4500ps Printer
CM767A HP Designjet 4520 42-in Printer
CM768A HP Designjet 4520ps 42-in Printer
Q1251A HP Designjet 5500 42-in Printer
Q1253A HP Designjet 5500 60-in Printer
Q1252A HP Designjet 5500ps 42-in Printer
Q1254A HP Designjet 5500ps 60-in Printer
Q1251V HP Designjet 5500 42-in UV Printer
Q1253V HP Designjet 5500 60-in UV Printer
Q1252V HP Designjet 5500ps 42-in UV Printer
Q1254V HP Designjet 5500ps 60-in UV Printer
Q6711A HP Designjet T610 24-in Printer
Q6712A HP Designjet T610 42-in Printer
Q6683A HP Designjet T1100 24-in Printer
Q6684A HP Designjet T1100 44-in Printer
Q6687A HP Designjet T1100ps 24-in Printer
Q6688A HP Designjet T1100ps 44-in Printer
CK837A HP Designjet T1120 24-in Printer
CK839A HP Designjet T1120 44-in Printer
CK838A HP Designjet T1120ps 24-in Printer
CK840A HP Designjet T1120ps 44-in Printer
CH538A HP Designjet T1200 44-in Printer
CK834A HP Designjet T1200 44-in PostScript Version Printer
CN375A HP Designjet T770 44-in Printer with Hard Disk
CQ306A HP Designjet T770 24-in Printer with Hard Disk
Q6675 HP Designjet Z2100 24-in Photo Printer
Q6677A HP Designjet Z2100 44-in Photo Printer
Q5669A HP Designjet Z3100 24-in Photo Printer
Q5659A HP Designjet Z3100 44-in Photo Printer
Q5670A HP Designjet Z3100ps GP 24-in Photo Printer
Q5660A HP Designjet Z3100ps GP 44-in Photo Printer
Q5669A HP Designjet Z3200 24-in Photo Printer
Q6659A HP Designjet Z3200 44-in Photo Printer
Q5670A HP Designjet Z3200ps 24-in Photo Printer
Q6660A HP Designjet Z3200ps 44-in Photo Printer
Q6651A HP Designjet Z6100 42-in Printer
Q6652A HP Designjet Z6100 60-in Printer
Q6653A HP Designjet Z6100ps 42-in Printer
Q6654A HP Designjet Z6100ps 60-in Printer
Q6651C HP Designjet Z6100 42-in Printer
Q6652C HP Designjet Z6100 60-in Printer
Q6653C HP Designjet Z6100ps 42-in Printer
Q6654C HP Designjet Z6100ps 60-in Printer
This list could change depending on the version of the OS on the scanner PC. Ultimately, if you go to add a printer, there is a drop-down list of supported printers which will tell you what it supports.
Kiran
OK so 3.5" is about the circumference of the main roller, so it's looking like a problem with the roller encoder disc or sensor. Also eliminate the spindle from causing a problem; roll a few feet off of it so the paper can be pulled freely and see if it still happens.
Btw, there's no way the encoder strip or carriage can cause this problem. Might want to reconsider who you got working on your printer.
Kiran
PS - If they put the same encoder disc and sensor back after replacing the motor.. that's likely your problem. Plus i hope they had the correct tool for reinstalling the motor! You don't just slap it in there and tighten the screws.
I only mention the printheads, because you have to print out the paper advance calibration sheet, and I would assume that bad printheads could possibly create a problem with the paper advance calibration. But as Kiran said, this is very unlikely to have anything to do with the carriage. Kiran--does a transmission include the encoder wheel and sensor, do you know?
This is REALLY helpful guys! Much appreciated.
I took a couple pictures of both the scanner name plate and the printer also, just to make sure I get the model numbers correct. Kiran, is there a place I can search for the a list like what you posted for the CQ654A? Ours is a CQ653A. I'm happy to do the searching if you can direct me to where the info is found.
I think I'll try doing the calibration myself and see what comes up.
I'm afraid I used the term "banding" when I meant skipping; like the paper isn't advancing correctly. I've tried it using just a single sheet feed to eliminate the roll as an issue and got the same result with the skipping. So this tells me the roll feeding isn't an issue and it's still in the roller itself or whatever drives it.
Scanner:
Printer:
Picture of the media transmission that was replaced and the specialty tool they charged us for. The tool came in the same box as the transmission. Also picture of the box they both came in together.
The old transmission turns very smoothly and no skipping or gnashing of teeth.
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